issues in put operation

[hy2014]

I get block in below situation:

when do put operation, below is the case:

1. put into userRegion is ok.
2. at this time, indexRegion.closing is set true, but wait for the lock.
3. execute the indexRegion.batchMutateForIndex method, will log WARN when execute in doMiniBatchMutation method, because the indexRegion.closing is true.

try {
      acquiredLockId = getLock(providedLockId, mutation.getRow(), shouldBlock);
} catch (IOException ioe) {
      LOG.warn("Failed getting lock in batch put, row=" + Bytes.toStringBinary(mutation.getRow()), ioe);
}

doMiniBatchMutation method always return 0L, so the indexRegion.batchMutateForIndex is a endless operation.

while (!batchOp.isDone()) {
    ....
}

it always log WARN to file, until the disk is full.

[chrajeshbabu]

bq. at this time, indexRegion.closing is set true, but wait for the lock.
Can you give more details why its index region is getting closed? any operations like balance,disable or split happening?

[hy2014]

@chrajeshbabu
I have check the log, balance make the region close.

[chrajeshbabu]

oh..Thanks. I will check it..

[hy2014]

do you need detail region server log?

[chrajeshbabu]

@hy2014
I got an idea. may be it's better to send. can you send the both master and region server logs to my mail id rajeshbabu@apache.org

[hy2014]

ok, send it.

[hy2014]

@chrajeshbabu
if add a limit,
when index region execute close method, it should wait until user region closed is true. if add this limit condition, we can resolve this problem.

but i do not know, does this change will cause other issues?
when i run mvn test, there always some case failed.

thanks

[anoopsjohn]

Rajeshbabu
Any luck with a solution and patch?

[chrajeshbabu]

@anoopsjohn
This will work.I will make patch and commit. Only problem is index region closing should wait till user table region closed which in effect delay index region opening. But any way this is better than hanging.

[anoopsjohn]

Is this patch committed @chrajeshbabu ? Can u pls attach a patch?