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Posted to issues-all@impala.apache.org by "Zoram Thanga (JIRA)" <ji...@apache.org> on 2018/08/29 17:26:00 UTC
[jira] [Created] (IMPALA-7508) Add Impala GDB commands to find
fragment instances and queries in a core file
Zoram Thanga created IMPALA-7508:
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Summary: Add Impala GDB commands to find fragment instances and queries in a core file
Key: IMPALA-7508
URL: https://issues.apache.org/jira/browse/IMPALA-7508
Project: IMPALA
Issue Type: Improvement
Components: Infrastructure
Affects Versions: Impala 2.12.0, Impala 3.1.0
Reporter: Zoram Thanga
Assignee: Zoram Thanga
Introduce a Python GDB module, and a couple of commands that helps to find queries and fragment instances that are executing in an impalad at the time the daemon crashes.
One hopes that folks will keep enhancing the module by adding new and useful GDB commands to aid debugging impalad core dumps.
The initial patch has these:
{noformat}
(gdb) source impala-gdb.py
(gdb) find-query-ids
f74c863dff66a34d:1d983cc300000000
364525e12495932b:73f5dd0200000000
bc4a3eec25481981:edda04b800000000
(gdb) find-fragment-instances
Fragment Instance Id Thread IDs
364525e12495932b:73f5dd02000000a2 [69]
364525e12495932b:73f5dd0200000171 [196, 136]
bc4a3eec25481981:edda04b8000001a8 [252, 237, 206]
f74c863dff66a34d:1d983cc30000009b [200, 14, 13, 12, 6, 5, 3, 2]
f74c863dff66a34d:1d983cc30000013a [4]
{noformat}
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