[jira] [Created] (TS-2931) plugin metrics fail after a crash

["James Peach (JIRA)" <ji...@apache.org>]

James Peach created TS-2931:
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             Summary: plugin metrics fail after a crash
                 Key: TS-2931
                 URL: https://issues.apache.org/jira/browse/TS-2931
             Project: Traffic Server
          Issue Type: Bug
          Components: Plugins, TS API
            Reporter: James Peach


If a plugin uses {{TSStatFindName}} followed by {{TSStatCreate}}, {{TSStatFindName}} can return 0 for all the metric IDs after a {{traffic_server}} crash.

AFAICT this will happen every time with the following conditions:
    1. traffic_manager has pulled the plugin stat records from traffic_server
    2. traffic_server crashes

When traffic_server comes back up, it pulls the records from traffic_manager. traffic_manager sends the records including the rsb_id field. However, RecForceInsert() does not copy the rsb_id field from the message to the actual record. There are 2 reasonable fixes:

- We could not propagate the 'registered' flag for records that we on. This forces the code to re-register, which will bring the stats back to the correct state.
- We could ensure that we copy the rsb_id field so that stat lookups succeed.




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