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From Stack <st...@duboce.net>
Subject Re: What is the cause for RegionTooBusyException?
Date Sat, 27 May 2017 00:11:44 GMT
On Fri, May 26, 2017 at 9:47 AM, jeff saremi <jeffsaremi@hotmail.com> wrote:

>
> I have an issue with this exception being thrown period. I think the
> resource management needs a lot of work. I will soon post another note
> about my impression of this whole thing.
>
>
Please. Would appreciate your input Jeff.
Thanks,
St.Ack



> Jeff
>
> ________________________________
> From: saint.ack@gmail.com <saint.ack@gmail.com> on behalf of Stack <
> stack@duboce.net>
> Sent: Friday, May 26, 2017 12:05:36 AM
> To: Hbase-User
> Subject: Re: What is the cause for RegionTooBusyException?
>
> On Mon, May 22, 2017 at 9:31 AM, jeff saremi <jeffsaremi@hotmail.com>
> wrote:
>
> > while I'm still trying to find anything useful in the logs, my question
> is
> > why isn't HBase self managing this?
> >
>
> It should do better here, yes (I thought TooBusy retried but I am not
> finding it at the mo.). Exception is thrown for such as the reasons James
> lists -- in essence out of resources --  including the case where we fail
> to obtain lock inside the configured timeouts (row lock on write or region
> lock doing bulk load). As James notes, you should see the too busy dumped
> into the regionserver log at time of issue. Having this, you can figure
> what resource is crimped. Is there no more detail on client side on the
> root of the TooBusy exceptions?
>
>
> Thanks,
> S
>
>
>
> >
> > ________________________________
> > From: jeff saremi <jeffsaremi@hotmail.com>
> > Sent: Friday, May 19, 2017 8:18:59 PM
> > To: user@hbase.apache.org
> > Subject: Re: What is the cause for RegionTooBusyException?
> >
> > Thanks Ted. I will look deeper as you suggested
> >
> > ________________________________
> > From: Ted Yu <yuzhihong@gmail.com>
> > Sent: Friday, May 19, 2017 4:18:12 PM
> > To: user@hbase.apache.org
> > Subject: Re: What is the cause for RegionTooBusyException?
> >
> > Have you checked region server log ?
> > Please take a look at the following method in HRegion:
> >
> >   private void checkResources() throws RegionTooBusyException {
> >
> > ...
> >
> >     if (this.memstoreDataSize.get() > this.blockingMemStoreSize) {
> >
> >       blockedRequestsCount.increment();
> >
> >       requestFlush();
> >
> >       throw new RegionTooBusyException("Above memstore limit, " +
> >
> > Which hbase release are you using ?
> >
> > Cheers
> >
> > On Fri, May 19, 2017 at 3:59 PM, jeff saremi <jeffsaremi@hotmail.com>
> > wrote:
> >
> > > We're getting errors like this. Where should we be looking into to
> solve
> > > this?
> > >
> > >
> > > Failed 69261 actions: RegionTooBusyException: 12695 times,
> > > RemoteWithExtrasException: 56566 times
> > >
> > > thanks
> > >
> > > Jeff
> > >
> > >
> >
>

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