Realm-cocoa: Too many open files in system

Created on 17 Feb 2017 · 9Comments · Source: realm/realm-cocoa

Goals

What do you want to achieve?

Use Realm in a multi-threaded environment

Expected Results

What did you expected to happen?

Realm works without issue

Actual Results

What did happened instead?

keys.rlm.lock': open() failed: Too many open files in system

Fatal Exception: RLMException
0  CoreFoundation                 0x7fffa0e22363 (Missing)
1  libobjc.A.dylib                0x7fffb5e1dc9d (Missing)
2  App                         0x10f13be85 RLMSetErrorOrThrow(NSError*, NSError* __autoreleasing*) (RLMUtil.mm:269)
3  App                         0x10f126dc8 RLMRealmTranslateException(NSError* __autoreleasing*) (RLMRealm.mm:230)
4  App                         0x10f127ba8 +[RLMRealm realmWithConfiguration:error:] (RLMRealm.mm:296)
5  App                         0x10f126b0f +[RLMRealm realmWithURL:] (RLMRealm.mm:170)
6  App                         0x10ed4d23c -[AppCoreRealmManager keyRealm] (AppCoreRealmManager.m:85)
7  App                         0x10ed4d319 -[AppCoreRealmManager keyRealmForCurrentThread] (AppCoreRealmManager.m:91)
8  App                         0x10ed4df75 -[AppCoreRealmManager validUidsForFolder:] (AppCoreRealmManager.m:164)
9  App                         0x10ec848c6 -[AppCoreKeyCache updateCountsForFolder:shouldUpdateSyncCounts:] (AppCoreKeyCache.m:1012)
10 App                         0x10ed2a56b -[CCFolderIndex updateWithUids:shouldDownload:updateFlags:] (CCFolderIndex.m:302)
11 App                         0x10ed2a49b __47-[CCFolderIndex fetchUidsAndDownload:andFlags:]_block_invoke (CCFolderIndex.m:296)
12 MailCore                       0x10fc164cd -[MCOIMAPSearchOperation operationCompleted]
13 MailCore                       0x10fc0d88d -[MCOOperation _operationCompleted]
14 libdispatch.dylib              0x7fffb66ca8fc (Missing)
15 libdispatch.dylib              0x7fffb66cb536 (Missing)
16 MailCore                       0x10fbcbce5 mailcore::Object::performMethodOnDispatchQueue(void (mailcore::Object::*)(void*), void*, void*, bool)
17 MailCore                       0x10fbd2f43 mailcore::OperationQueue::runOperations()
18 libsystem_pthread.dylib        0x7fffb6919aab (Missing)
19 libsystem_pthread.dylib        0x7fffb69199f7 (Missing)
20 libsystem_pthread.dylib        0x7fffb69191fd (Missing)

Steps to Reproduce

Have 8-10 threads reading and writing to realm at the same time.

Code Sample

Version of Realm and Tooling

ProductName:    Mac OS X
ProductVersion: 10.11.6
BuildVersion:   15G31

/Applications/Xcode.app/Contents/Developer
Xcode 8.2.1
Build version 8C1002

/Users/devsanghani/.rvm/rubies/ruby-2.3.0/bin/pod
1.0.1
Realm (2.1.2)

/bin/bash
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin15)


(not in use here)

/usr/local/bin/git
git version 2.9.2

lsof -p :

<App>  15910 <User>  txt      REG                1,2  18874368 21208403 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm
<App>  15910 <User>  txt      REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  txt      REG                1,2      2184 21208423 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
<App>  15910 <User>  txt      REG                1,2   2359296 21208427 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm
<App>  15910 <User>  100u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  101u     REG                1,2         0 21208400 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.write.mx
<App>  15910 <User>  102u     REG                1,2         0 21208401 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.balance.mx
<App>  15910 <User>  103u     REG                1,2  18874368 21208403 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm
<App>  15910 <User>  104u     REG                1,2         0 21208402 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.control.mx
<App>  15910 <User>  107u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  108r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  109u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  110r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  111u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  112r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  113u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  114r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  116u    FIFO                        0t162 21208408 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.note
<App>  15910 <User>  167u     REG                1,2      2184 21208423 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
<App>  15910 <User>  168u     REG                1,2         0 21208424 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.write.mx
<App>  15910 <User>  169u     REG                1,2         0 21208425 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.balance.mx
<App>  15910 <User>  170u     REG                1,2         0 21208426 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.control.mx
<App>  15910 <User>  171u     REG                1,2   2359296 21208427 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm
<App>  15910 <User>  172u    FIFO                          0t0 21208428 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  173r    FIFO                          0t0 21208428 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  174u    FIFO                          0t0 21208429 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  175r    FIFO                          0t0 21208429 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  176u    FIFO                          0t0 21208430 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  177r    FIFO                          0t0 21208430 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  178u    FIFO                          0t0 21208431 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  179r    FIFO                          0t0 21208431 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  181u    FIFO                         0t34 21208432 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.note
<App>  15910 <User>  200u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  201u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  202r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  203u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  209u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  210u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  215u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  216u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  217r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  218u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  219r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  220u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  221r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  222u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  223r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  224u     REG                1,2      2184 21208423 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
<App>  15910 <User>  225u    FIFO                          0t0 21208428 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  226r    FIFO                          0t0 21208428 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  227u    FIFO                          0t0 21208429 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  228r    FIFO                          0t0 21208429 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  229u    FIFO                          0t0 21208430 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  230r    FIFO                          0t0 21208430 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  231u    FIFO                          0t0 21208431 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  232r    FIFO                          0t0 21208431 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  235u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  236u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  237r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  238u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  239r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  240u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  241r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  242u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  243r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  252u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  253u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  254r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  255u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  256r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  257u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  258r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  259u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  260r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  285r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  286u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  287r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  288u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  289r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  300r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  301u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  302r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  303u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  329u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  330u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  331r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  332u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  333r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  334u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  335r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  336u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  337r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  376u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  377u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  378r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  379u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  380r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  381u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  382r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  383u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  384r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  385u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  386u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  387r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  388u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  389r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  390u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  391r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  392u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  393r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  396u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  397u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  398r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  399u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  400r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  401u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  402r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  403u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  404r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  414r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  415u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  416r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  425u     REG                1,2      4232 21208399 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
<App>  15910 <User>  426u    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  427r    FIFO                          0t0 21208404 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  428u    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  429r    FIFO                          0t0 21208405 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  430u    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  431r    FIFO                          0t0 21208406 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  432u    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  433r    FIFO                          0t0 21208407 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  446u     REG                1,2      2184 21208423 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
<App>  15910 <User>  447u    FIFO                          0t0 21208428 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  448r    FIFO                          0t0 21208428 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
<App>  15910 <User>  449u    FIFO                          0t0 21208429 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  450r    FIFO                          0t0 21208429 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.daemon_ready.cv
<App>  15910 <User>  451u    FIFO                          0t0 21208430 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  452r    FIFO                          0t0 21208430 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.work_ready.cv
<App>  15910 <User>  453u    FIFO                          0t0 21208431 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.allow_write.cv
<App>  15910 <User>  454r    FIFO                          0t0 21208431 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.allow_write.cv

T-Help

Source

dsanghan

Most helpful comment

Seems to be the case. I'll take a look at what's opening instances on my end. Thanks for the help! I'll re-open an issue in case I find something else.

dsanghan on 17 Feb 2017

👍2

All 9 comments

For about 8-10 threads (reading/writing) on 2 databases, I saw about 250+ fd's open.

dsanghan on 17 Feb 2017

Hi @dsanghan. Thanks for reaching out about this. We'll have one of the engineers look at what you've provided and follow-up. In the meantime, would you be able to prepare a sample project that reproduces this problem? Cheers.

luna-kx on 17 Feb 2017

It looks like realm/realm-core#2424, brought into realm-cocoa by #4651 but not yet in a release, should reduce the number of file descriptors per Realm instance significantly.

bdash on 17 Feb 2017

@bdash I re-ran it on latest master (with the merged pull request) and it cuts descriptors by half. From 250+ to 110+ - which is a great improvement. Still, 110+ fd's for 8-10 threads seems to be on the higher side. Are there any other fixes in the works that I can pull in?

dsanghan on 17 Feb 2017

Can you share updated lsof output when using master?

bdash on 17 Feb 2017

@bdash:

App  15609 <User>  txt      REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  txt      REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  txt      REG                1,2   6291456 21339508 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm
App  15609 <User>  txt      REG                1,2    720896 21339532 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm
App  15609 <User>   97u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>   99u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  100u     REG                1,2         0 21339505 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.write.mx
App  15609 <User>  101u     REG                1,2         0 21339506 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.balance.mx
App  15609 <User>  102u     REG                1,2         0 21339507 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.control.mx
App  15609 <User>  104u     REG                1,2   6291456 21339508 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm
App  15609 <User>  107u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  108r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  110u    FIFO                         0t95 21339510 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.note
App  15609 <User>  132u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  138u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  151u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  152r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  153u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  154u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  155r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  156u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  158u     REG                1,2         0 21339529 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.write.mx
App  15609 <User>  159u     REG                1,2         0 21339530 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.balance.mx
App  15609 <User>  160u     REG                1,2         0 21339531 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.control.mx
App  15609 <User>  161u     REG                1,2    720896 21339532 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm
App  15609 <User>  165u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  166r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  168u    FIFO                         0t15 21339534 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.note
App  15609 <User>  171u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  172u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  173r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  174u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  175u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  176r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  179u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  180r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  181u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  182u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  183r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  186u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  187u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  188r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  189u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  190u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  193r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  198u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  199u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  200r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  201u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  202u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  203r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  208u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  209u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  210r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  213u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  214u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  215r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  216u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  217u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  218r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  220u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  221u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  222u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  223r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  224u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  227u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  228r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  229u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  230u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  231r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  232u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  233r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  234u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  235u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  236r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  237u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  238u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  239r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  243u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  245u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  246r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  247u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  258u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  259u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  260r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  264u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  265u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  270u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  271u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  272r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  274r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  276u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  278u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  280r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  281u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  282u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  283r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  285u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  287u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  288r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  290r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  291u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  292u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  293r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  297u     REG                1,2      1160 21339528 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.lock
App  15609 <User>  298u    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  299r    FIFO                          0t0 21339533 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/threads.rlm.management/access_control.new_commit.cv
App  15609 <User>  300u     REG                1,2      3208 21339504 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.lock
App  15609 <User>  301u    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv
App  15609 <User>  302r    FIFO                          0t0 21339509 /Users/<User>/Library/Containers/<App>/Data/Library/Application Support/AppDB/keys.rlm.management/access_control.new_commit.cv

dsanghan on 17 Feb 2017

Thanks.

It looks like keys.realm is open 23 times, with threads.realm being open 11 times. Does that sound correct?

bdash on 17 Feb 2017

Seems to be the case. I'll take a look at what's opening instances on my end. Thanks for the help! I'll re-open an issue in case I find something else.

dsanghan on 17 Feb 2017

👍2

The most recent lsof output made me notice that we're opening condition variable pipes more than we should be. realm/realm-core#2460 will address that.

bdash on 17 Feb 2017

👍1

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