[jira] [Created] (IMPALA-8194) TestPauseMonitor.test_jvm_pause_monitor_logs_entries needs to wait longer to see output

["Andrew Sherman (JIRA)" <ji...@apache.org>]

Andrew Sherman created IMPALA-8194:
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             Summary: TestPauseMonitor.test_jvm_pause_monitor_logs_entries needs to wait longer to see output
                 Key: IMPALA-8194
                 URL: https://issues.apache.org/jira/browse/IMPALA-8194
             Project: IMPALA
          Issue Type: Bug
            Reporter: Andrew Sherman
            Assignee: Andrew Sherman


TestPauseMonitor.test_jvm_pause_monitor_logs_entries complains:

{quote}
FAIL custom_cluster/test_pause_monitor.py::TestPauseMonitor::()::test_jvm_pause_monitor_logs_entries
=================================== FAILURES ===================================
_____________ TestPauseMonitor.test_jvm_pause_monitor_logs_entries _____________
custom_cluster/test_pause_monitor.py:38: in test_jvm_pause_monitor_logs_entries
    self.assert_impalad_log_contains('INFO', "Detected pause in JVM or host machine")
common/custom_cluster_test_suite.py:216: in assert_impalad_log_contains
    self.assert_log_contains("impalad", level, line_regex, expected_count)
common/custom_cluster_test_suite.py:248: in assert_log_contains
    (expected_count, log_file_path, line_regex, found, line)
E   AssertionError: Expected 1 lines in file /data0/jenkins/workspace/xxx/repos/Impala/logs/custom_cluster_tests/impalad.impala-xxx.jenkins.log.INFO.20190211-183351.2092 matching regex 'Detected pause in JVM or host machine', but found 0 lines. Last line was: 
E   I0211 18:34:03.563254  2392 thrift-util.cc:113] TAcceptQueueServer client died: write() send(): Broken pipe
{quote}

The actual log (archived later) contains:

{quote}
I0211 18:34:03.563254  2392 thrift-util.cc:113] TAcceptQueueServer client died: write() send(): Broken pipe
I0211 18:34:03.565459  2164 JvmPauseMonitor.java:187] Detected pause in JVM or host machine (eg GC): pause of approximately 4550ms
No GCs detected
{quote}

so if test_jvm_pause_monitor_logs_entries had waited for 3ms more it would have seen the line it was looking for (assuming the simplest explanation). 




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