Thank you Emir, but I'm not able to make a thread dump while doing updates
because the updates are very fast again:
While I wrote this email my colleague was googling around.
He found this
http://lucene.472066.n3.nabble.com/HttpSolrServer-commit-is-taking-more-time-td4330954.html
and my colleague changed some values
from:
to:
from:
to:
and it seems, that our problems are gone completely. Updates fast.
Search seems not to be much slower.
But I'm still curious why our problems started so suddenly and what
negative side effects these changes could have.
Cheers
Felix
2018-04-18 17:11 GMT+02:00 Emir Arnautović :
> Hi Felix,
> Did you try to do thread dump while doing update. Did it show anything?
>
> Emir
> --
> Monitoring - Log Management - Alerting - Anomaly Detection
> Solr & Elasticsearch Consulting Support Training - http://sematext.com/
>
>
>
> > On 18 Apr 2018, at 17:06, Felix XY wrote:
> >
> > Hello group,
> >
> > since two days we have huge problems with our solr 5.4.1 installation.
> >
> > ( yes, we have to update it. But this will not be a solution right now )
> >
> > All path=/select requests are still very fast. But all /update Requests
> > take >30sec up to 3 minutes.
> >
> > The index is not very big (1.000.000 documents) and its size on disk is
> > about 1GB
> >
> > The virtual server (ESX) has 8GB RAM and 8 cores. IO is good.
> >
> > solr was started with -Xms4096M -Xmx4096M
> > ( but we changed it to higher and lower values during our tests )
> >
> > We have a lot of /select requests at the moment (10.000/Minute) but this
> is
> > not unusual for this installation and we didn't have this update problems
> > before.
> >
> > On another identical sleeping core on the same server, we are able to
> make
> > fast updates. We experience slow updates only on the core with high
> > selecting traffic. So it seems not to be a general problem with java, GC,
> >
> >
> > We disabled all other insert/updates and we are able to reproduce this
> slow
> > update behaviour in the Solr Admin console with a single update of one
> > document.
> >
> > We are lost.
> >
> > We didn't change the Solr configuration.
> > The load seems to be not higher then during previous peaks
> > The developers didn't change anything (so they say)
> > Search is still fast.
> >
> > But single simple updates takes >30sec
> >
> > Any ideas about this? We tried quite a lot the last two days
> >
> > Cheers
> > Felix
>
>
