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From "guanyun (Jira)" <j...@apache.org>
Subject [jira] [Created] (HBASE-23509) CLONE - [C++] Segfaults from JNI
Date Sun, 08 Dec 2019 13:35:03 GMT
guanyun created HBASE-23509:
-------------------------------

             Summary: CLONE - [C++] Segfaults from JNI
                 Key: HBASE-23509
                 URL: https://issues.apache.org/jira/browse/HBASE-23509
             Project: HBase
          Issue Type: Sub-task
            Reporter: guanyun
            Assignee: Ted Yu
         Attachments: 1-table-async-test.txt, 18541.v1.txt, 18541.v3.txt

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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