James Clampffer created HDFS-10952:
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Summary: libhdfs++: Fix
test_libhdfs_threaded_hdfspp_test_shim_static non-deterministic failures
Key: HDFS-10952
URL: https://issues.apache.org/jira/browse/HDFS-10952
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: James Clampffer
Assignee: James Clampffer
test_libhdfs_threaded_hdfspp_test_shim_static has started failing more often
and not a whole lot has changed that should directly impact this.
It looks like the failure mode is error injection in the read pipeline. Until
HDFS-10951 is completed reads don't have a retry mechanism so any error
injection will cause that read to fail. However that doesn't explain why these
failures have been happening more frequently lately. The failures seem to be
hardware or timing specific; they almost never happen in some environments and
happen fairly frequently in others. It might help to set up a test harness to
step through revisions and see if a specific commit causes the probability of a
failure to go up.
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