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From CPC <acha...@gmail.com>
Subject Re: Do not use Cassandra 3.11.0+ or Cassandra 3.0.12+
Date Mon, 11 Sep 2017 21:06:49 GMT
Hi,

Is this bug fixed in dse 5.1.3? As I understand calling jmx getTombStoneRatio
trigers that bug. We are using opscenter as well and do you have any idea
whether opscenter using/calling this method?

Thanks

On Aug 29, 2017 6:35 AM, "Jeff Jirsa" <jjirsa@gmail.com> wrote:

> I shouldn't actually say I don't think it can happen on 3.0 - I haven't
> seen this happen on 3.0 without some other code change to enable it, but
> like I said, we're still investigating.
>
> --
> Jeff Jirsa
>
>
> > On Aug 28, 2017, at 8:30 PM, Jeff Jirsa <jjirsa@gmail.com> wrote:
> >
> > For what it's worth, I don't think this impacts 3.0 without adding some
> other code change (the reporter of the bug on 3.0 had added custom metrics
> that exposed a concurrency issue).
> >
> > We're looking at it on 3.11. I think 13038 made it far more likely to
> occur, but I think it could have happened pre-13038 as well (would take
> some serious luck with your deletion time distribution though - the
> rounding in 13038 does make it more likely, but the race was already there).
> >
> > --
> > Jeff Jirsa
> >
> >
> >> On Aug 28, 2017, at 8:24 PM, Jay Zhuang <jay.zhuang@yahoo.com.INVALID>
> wrote:
> >>
> >> We're using 3.0.12+ for a few months and haven't seen the issue like
> >> that. Do we know what could trigger the problem? Or is 3.0.x really
> >> impacted?
> >>
> >> Thanks,
> >> Jay
> >>
> >>> On 8/28/17 6:02 AM, Hannu Kröger wrote:
> >>> Hello,
> >>>
> >>> Current latest Cassandra version (3.11.0, possibly also 3.0.12+) has a
> race
> >>> condition that causes Cassandra to create broken sstables (stats file
> in
> >>> sstables to be precise).
> >>>
> >>> Bug described here:
> >>> https://issues.apache.org/jira/browse/CASSANDRA-13752
> >>>
> >>> This change might be causing it (but not sure):
> >>> https://issues.apache.org/jira/browse/CASSANDRA-13038
> >>>
> >>> Other related issues:
> >>> https://issues.apache.org/jira/browse/CASSANDRA-13718
> >>> https://issues.apache.org/jira/browse/CASSANDRA-13756
> >>>
> >>> I would not recommend using 3.11.0 nor upgrading to 3.0.12 or higher
> before
> >>> this is fixed.
> >>>
> >>> Cheers,
> >>> Hannu
> >>>
> >>
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