[IMPALA-8245] Add hostname to timeout error message in HdfsMonitoredOps

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 3.2.0
• Fix Version/s: Impala 3.2.0
• Component/s: Backend
• Target Version: Impala 3.2.0
• Epic Color: ghx-label-9
• Assignee: Pooja Nilangekar
• Reporter: Joe McDonnell
• Created: 25/Feb/19 20:51
• Updated: 27/Feb/19 04:22
• Resolved: 27/Feb/19 04:22

Description

If a DiskIo operation times out, it generates a TErrorCode::THREAD_POOL_TASK_TIMED_OUT or TErrorCode::THREAD_POOL_SUBMIT_FAILED error codes. These call GetDescription() to get DiskIo related context. That information should include the hostname where the error occurred to allow tracking down a problematic host that is seeing DiskIo timeouts.