Etcd: Is there anyway to update lease in a txn?

[xiaoyulei]

It looks like there is no lease interface in txn.

[heyitsanthony]

@YuleiXiao refresh a lease in a txn? no. What is the use case?

[xiaoyulei]

@heyitsanthony
I want to reduce put operation. In some condition, I just need update lease time, no need put again.
txn like this:

if value==A
then
     extend the lease time
else
    OpPut(key, B)

[heyitsanthony]

OK, if this feature is going to be supported, it'd be as a flag to Put that would refresh the lease. The Txn interface shouldn't need to change.

[lorneli]

How about adding a function func WithRenewLease(leaseID LeaseID) OpOption? Similar to WithIgnoreLease in format.

[anvinjain]

An option to update lease associated with a key inside a transaction will be welcome. This is a common pattern for LRU eviction.

[stale[bot]]

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