Arangodb: Search misses item - race condition?

Created on 22 Sep 2016 · 2Comments · Source: arangodb/arangodb

my environment running ArangoDB

I'm using the latest ArangoDB of the respective release series:

[x] 3.0.9

On this operating system:

[x] Ubuntu .deb

I'm issuing AQL via:

[x] this Driver: arangojs

I've run db._explain("<my aql query>") and it didn't shed more light on this.
The AQL query in question is: testcase.tar.gz

The issue can be reproduced using this dataset: testcase.tar.gz

Please provide a way to create the dataset to run the above query on; either by a gist with an arangodump, or `db.collection.save({my: "values"}) statements. If it can be reproduced with one of the ArangoDB example datasets, it's a plus.

These are the steps to reproduce:
1) create the dataset
2) create the index: db.testc.ensureIndex({ type: "fulltext", fields: [ "name" ], minLength: 2 });
3) install node
4) node index.js

The following problem occurs: The search misses one item occasionally, the one that is being written to.

Instead I would be expecting: I should be getting all the three items.

$ node index.js 
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251', 'abc' ]
[ '13483222', '13483251' ]
error

1 Bug

Source