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

["Todd Lipcon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KUDU-1597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15472426#comment-15472426 ] 

Todd Lipcon commented on KUDU-1597:
-----------------------------------

Does it seem reasonable to just add a call to tablet_peer_->CheckRunning() in the SysCatalogTable::Visit*() functions? If that sounds right I'll take a whack at this.

> 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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