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  1. Core Server
  2. SERVER-36230

Waits-for graph no longer being generated by hang_analyzer.py script

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    • Fully Compatible
    • TIG 2018-08-13
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      In BF-9986, we saw many threads waiting on DB locks, but the hang analyzer cannot generate the graph for us. The lock manager dumps the information though.

       [2018/07/18 12:40:44.821] warning: target file /proc/17238/cmdline contained unexpected null characters
 [2018/07/18 12:40:44.821] Saved corefile dump_mongod.17238.core
 [2018/07/18 12:41:07.364] Running Hang Analyzer Supplement - MongoDBDumpLocks
 [2018/07/18 12:41:07.364] Not generating the digraph, since the lock graph is empty
 [2018/07/18 12:41:07.364] Running Print JavaScript Stack Supplement
 [2018/07/18 12:41:07.364] Detaching from program: /data/mci/d8572849d2ad8ce1953117503927f065/src/mongod, process 17238
 [2018/07/18 12:41:07.491] Done analyzing mongod process with PID 17238
 [2018/07/18 12:41:07.491] Debugger /opt/mongodbtoolchain/gdb/bin/gdb, analyzing mongod process with PID 17241

            Assignee:
            max.hirschhorn@mongodb.com Max Hirschhorn
            Reporter:
            siyuan.zhou@mongodb.com Siyuan Zhou
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              Created:
              Updated:
              Resolved: