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https://issues.apache.org/jira/browse/HBASE-18541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122495#comment-16122495
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Ted Yu commented on HBASE-18541:
--------------------------------
{code}
2017-08-10 22:32:16,664 INFO
[RpcServer.FifoWFPBQ.default.handler=28,queue=1,port=38871] master.HMaster
(HMaster.java:createTable(1541)) - proc Id 9
2017-08-10 22:32:16,666 INFO
[RpcServer.FifoWFPBQ.default.handler=28,queue=1,port=38871] master.HMaster
(HMaster.java:createTable(1543)) - back from latch
2017-08-10 22:32:16,667 INFO [ProcessThread(sid:0 cport:54578):]
server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest(651)) - Got
user-level KeeperException when processing sessionid:0x15dce45d47c0000
type:create cxid:0xb6 zxid:0x5b txntype:-1 reqpath:n/a Error
Path:/hbase/table-lock/table6 Error:KeeperErrorCode = NoNode for
/hbase/table-lock/table6
{code}
Looks like the problem may have happened after table creation:
{code}
latch.await();
LOG.info("back from latch");
{code}
> [C++] Segfaults from JNI
> ------------------------
>
> Key: HBASE-18541
> URL: https://issues.apache.org/jira/browse/HBASE-18541
> Project: HBase
> Issue Type: Sub-task
> Reporter: Enis Soztutar
> Assignee: Ted Yu
>
> retry-test and multi-retry-test fails flakily when run with
> {code}
> buck test --all --no-results-cache
> {code}
> or when run in a loop:
> {code}
> for i in `seq 1 10`; do buck test --no-results-cache core:retry-test || break
> 1; done
> {code}
> The problem seems to be within the JNI internals and usually happens at the
> create table method call. I was not able to inspect much, but the comments in
> our mini-cluster indicate that we may need to use global references instead
> of local ones. I suspect the problem happens when there is a GC run for the
> test since the failure happens usually after some time (but almost always in
> create table method).
> [~ted_yu] do you mind taking a look at this.
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