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Posted to issues@kudu.apache.org by "Adar Dembo (JIRA)" <ji...@apache.org> on 2016/09/07 21:15:21 UTC

[jira] [Created] (KUDU-1597) Master crashes if web UI is visited during startup

Adar Dembo created KUDU-1597:
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             Summary: Master crashes if web UI is visited during startup
                 Key: KUDU-1597
                 URL: https://issues.apache.org/jira/browse/KUDU-1597
             Project: Kudu
          Issue Type: Bug
          Components: master
    Affects Versions: 0.10.0
            Reporter: Adar Dembo
            Priority: Critical


Accessing certain paths in the master web UI during startup can cause the master to crash. For example, /dump-entities while the master tablet is still bootstrapping will lead to a CHECK crash (SysCatalogTable has an uninitialized schema at this point). There are no doubt others too.

We haven't seen this in testing because our tests generally don't access the web UI, or they don't try to bootstrap a large master tablet. We've seen at least one user hit this, though: for some reason the master tablet was enormous (i.e. it took at least a minute to bootstrap) and the Cloudera Manager agent was periodically accessing /dump-entities.



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