WritebackListener thread can die while handling exceptions

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
    • 2.2.5, 2.3.2
    • Affects Version/s: 2.3.1
    • Component/s: Sharding
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    • 3
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      Problem code:

                  catch ( std::exception& e ) {

                if ( inShutdown() ) {
                    // we're shutting down, so just clean up
                    return;
                }

                log() << "WriteBackListener exception : " << e.what() << endl;

                // It's possible this shard was removed
                Shard::reloadShardInfo();
            }

      Note that reloadShardInfo can also throw exceptions and since it is not handled in the run method, the writeback listener thread would just terminate. Sample scenarios that reloadShardInfo can throw is when config servers are unreachable.

            Assignee:
            Randolph Tan
            Reporter:
            Randolph Tan
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              Created:
              Updated:
              Resolved: