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https://issues.apache.org/jira/browse/THRIFT-2431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14536476#comment-14536476
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James E. King, III commented on THRIFT-2431:
--------------------------------------------
Agree, this is a real issue; I'm not convinced adding timing based checks here
is good for the Travis CI build system either. They should probably be
removed. I'm sure the intention was to find poorly performing code paths,
however that should be done with callgrind, not with a unit test.
> TFileTransportTest fails with "check delta < XXX failed"
> --------------------------------------------------------
>
> Key: THRIFT-2431
> URL: https://issues.apache.org/jira/browse/THRIFT-2431
> Project: Thrift
> Issue Type: Bug
> Components: C++ - Library
> Affects Versions: 0.9.1
> Environment: Linux 3.4.43
> Building the SRPM from Fedora Core 21
> Reporter: Benoit Sigoure
> Priority: Minor
>
> This test is flaky, I can easily make it fail:
> {code}
> $ ./TFileTransportTest
> Running 5 test cases...
> TFileTransportTest.cpp(289): error in "test_flush_max_us1": check delta <
> max_allowed_delta failed [17031 >= 15000]
> *** 1 failure detected in test suite "TFileTransportTest"
> $ ./TFileTransportTest
> Running 5 test cases...
> *** No errors detected
> $ ./TFileTransportTest
> Running 5 test cases...
> *** No errors detected
> $ ./TFileTransportTest
> Running 5 test cases...
> TFileTransportTest.cpp(339): fatal error in "test_noop_flush": critical check
> delta < 2000000 failed [3000242 >= 2000000]
> *** 1 failure detected in test suite "TFileTransportTest"
> $ ./TFileTransportTest
> Running 5 test cases...
> TFileTransportTest.cpp(339): fatal error in "test_noop_flush": critical check
> delta < 2000000 failed [3000137 >= 2000000]
> *** 1 failure detected in test suite "TFileTransportTest"
> {code}
> Seems like this has hit a
> [couple|http://mail-archives.apache.org/mod_mbox/thrift-dev/201107.mbox/%3C412700474.6601310132626839.JavaMail.hudson@aegis%3E]
>
> [times|http://mail-archives.apache.org/mod_mbox/thrift-dev/201110.mbox/%3C566967061.2611319633097563.JavaMail.hudson@aegis%3E]
> in Jenkins already.
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