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https://issues.apache.org/jira/browse/HBASE-18541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125998#comment-16125998
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Ted Yu commented on HBASE-18541:
--------------------------------
This instance was from netty :
{code}
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f488085a69e in ?? ()
[Current thread is 1 (Thread 0x7f48947fa840 (LWP 6965))]
Installing openjdk unwinder
(gdb) bt
#0 0x00007f488085a69e in ()
#1 0x00007f4880729d80 in [interpreted: bc = 20]
io.netty.channel.nio.NioEventLoop.wakeup(boolean) () at
io/netty/channel/nio/NioEventLoop.java:645
#2 0x00007f4880729ffd in [interpreted: bc = 75]
io.netty.util.concurrent.SingleThreadEventExecutor.execute(java.lang.Runnable)
()
at io/netty/util/concurrent/SingleThreadEventExecutor.java:681
#3 0x00007f488072a042 in [interpreted: bc = 51]
org.apache.hadoop.hbase.ipc.AsyncRpcChannelImpl.close(java.lang.Throwable) ()
at org/apache/hadoop/hbase/ipc/AsyncRpcChannelImpl.java:596
#4 0x00007f488072a042 in [interpreted: bc = 77]
org.apache.hadoop.hbase.ipc.AsyncRpcClient.close() () at
org/apache/hadoop/hbase/ipc/AsyncRpcClient.java:346
#5 0x00007f488072a042 in [interpreted: bc = 71]
org.apache.hadoop.hbase.client.ConnectionImplementation.close() ()
at org/apache/hadoop/hbase/client/ConnectionImplementation.java:1911
#6 0x00007f488072a042 in [interpreted: bc = 33]
org.apache.hadoop.hbase.HBaseTestingUtility.shutdownMiniCluster() () at
org/apache/hadoop/hbase/HBaseTestingUtility.java:1166
#7 0x00007f48807224e7 in StubRoutines (1) ()
{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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