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From "Tim Armstrong (JIRA)" <>
Subject [jira] [Resolved] (IMPALA-1970) impalad web UI becomes unresponsive in certain situations
Date Mon, 12 Jun 2017 21:31:00 GMT


Tim Armstrong resolved IMPALA-1970.
    Resolution: Duplicate

> impalad web UI becomes unresponsive in certain situations
> ---------------------------------------------------------
>                 Key: IMPALA-1970
>                 URL:
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 2.2
>            Reporter: Chris Leroy
>            Priority: Minor
>              Labels: performance
> I've encountered this in a couple of situations.
> On a large cluster, I clicked details from the query page for an executing insert query
-- my browser spun and never returned -- I think I may have done tried clicking a number of
additional times and may have potentially exhausted the UI threads. The entire UI stopped
responding to requests eventually.
> On a smaller toy cluster, I ran select * from sample_08 where sleep(60000) and noticed
the details link didn't respond until the query finished. I realize sleep is sorta busted,
but is it possible the UI threads are waiting for something to happen in the query processing?

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