GitHub user selvaganesang opened a pull request:
https://github.com/apache/incubator-trafodion/pull/1277
[TRAFODION-2783] jdbc_test_cdh fails at times with type 2 JDBC driverâ¦
⦠dumping core
In case of Type 2 JDBC driver, the Trafodion SQL engine is a library that
is dynamic
loaded into the process. Initialization of C++ static objects in the
dynamic loaded libraries
are supposed to be done before dlopen returns. But the behavior seems to be
nondeterministic when
there are multiple threads or when there are dependent static objects (An
static object expects
another to be initialized before it). I think, the order of the
initialization is not guaranteed
by the standard.
Refactored the code to initialize static object
CharInfo::builtinCollationDB_ as part of the first
CLI call in a thread safe manner.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/selvaganesang/incubator-trafodion
static_variable
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/1277.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1277
----
commit 9a8a7c39fecff583d2988c76fb443620ee64df24
Author: selvaganesang <selva.govindara...@esgyn.com>
Date: 2017-10-26T04:47:16Z
[TRAFODION-2783] jdbc_test_cdh fails at times with type 2 JDBC driver
dumping core
In case of Type 2 JDBC driver, the Trafodion SQL engine is a library that
is dynamic
loaded into the process. Initialization of C++ static objects in the
dynamic loaded libraries
are supposed to be done before dlopen returns. But the behavior seems to be
nondeterministic when
there are multiple threads or when there are dependent static objects (An
static object expects
another to be initialized before it). I think, the order of the
initialization is not guaranteed
by the standard.
Refactored the code to initialize static object
CharInfo::builtinCollationDB_ as part of the first
CLI call in a thread safe manner.
----
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