On Fri, Jun 21, 2013 at 6:16 PM, aaron morton <aa...@thelastpickle.com>wrote:
> Do you think it's worth posting an issue, or not enough traceable evidence > ? > > If you can reproduce it then certainly file a bug. > I'll keep my eye on it to see if it happens again and there is a pattern cheers > > Cheers > > ----------------- > Aaron Morton > Freelance Cassandra Consultant > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 20/06/2013, at 9:41 PM, Franc Carter <franc.car...@sirca.org.au> wrote: > > On Thu, Jun 20, 2013 at 7:27 PM, aaron morton <aa...@thelastpickle.com>wrote: > >> nodetool compactionstats, gives >> >> pending tasks: 13120 >> >> If there are no errors in the log, I would say this is a bug. >> > > This happened after the node ran out of file descriptors, so an edge case > wouldn't surprise me. > > I've rebuilt the node (blown the data way and am running a nodetool > rebuild). Do you think it's worth posting an issue, or not enough traceable > evidence ? > > cheers > > >> >> Cheers >> >> ----------------- >> Aaron Morton >> Freelance Cassandra Consultant >> New Zealand >> >> @aaronmorton >> http://www.thelastpickle.com >> >> On 19/06/2013, at 11:41 AM, Franc Carter <franc.car...@sirca.org.au> >> wrote: >> >> On Wed, Jun 19, 2013 at 9:34 AM, Bryan Talbot <btal...@aeriagames.com>wrote: >> >>> Manual compaction for LCS doesn't really do much. It certainly doesn't >>> compact all those little files into bigger files. What makes you think >>> that compactions are not occurring? >>> >> >> Yeah, that's what I thought, however:- >> >> nodetool compactionstats, gives >> >> pending tasks: 13120 >> Active compaction remaining time : n/a >> >> when I run nodetool compact in a loop the pending tasks goes down >> gradually. >> >> This node also has vastly higher latencies (x10) than the other nodes. I >> saw this with a previous CF than I 'manually compacted', and when the >> pending tasks reached low numbers (stuck on 9) then latencies were back to >> low milliseconds >> >> cheers >> >> >>> -Bryan >>> >>> >>> >>> On Tue, Jun 18, 2013 at 3:59 PM, Franc Carter <franc.car...@sirca.org.au >>> > wrote: >>> >>>> On Sat, Jun 15, 2013 at 11:49 AM, Franc Carter < >>>> franc.car...@sirca.org.au> wrote: >>>> >>>>> On Sat, Jun 15, 2013 at 8:48 AM, Robert Coli <rc...@eventbrite.com>wrote: >>>>> >>>>>> On Wed, Jun 12, 2013 at 3:26 PM, Franc Carter < >>>>>> franc.car...@sirca.org.au> wrote: >>>>>> > We are running a test system with Leveled compaction on >>>>>> Cassandra-1.2.4. >>>>>> > While doing an initial load of the data one of the nodes ran out of >>>>>> file >>>>>> > descriptors and since then it hasn't been automatically compacting. >>>>>> >>>>>> You have (at least) two options : >>>>>> >>>>>> 1) increase file descriptors available to Cassandra with ulimit, if >>>>>> possible >>>>>> 2) increase the size of your sstables with levelled compaction, such >>>>>> that you have fewer of them >>>>>> >>>>> >>>>> Oops, I wasn't clear enough. >>>>> >>>>> I have increased the number of file descriptors and no longer have a >>>>> file descriptor issue. However the node still doesn't compact >>>>> automatically. If I run a 'nodetool compact' it will do a small amount of >>>>> compaction and then stop. The Column Family is using LCS >>>>> >>>> >>>> Any ideas on this - compaction is still not automatically running for >>>> one of my nodes >>>> >>>> thanks >>>> >>>> >>>>> >>>>> cheers >>>>> >>>>> >>>>>> >>>>>> =Rob >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> *Franc Carter* | Systems architect | Sirca Ltd >>>>> <marc.zianideferra...@sirca.org.au> >>>>> franc.car...@sirca.org.au | www.sirca.org.au >>>>> Tel: +61 2 8355 2514 >>>>> Level 4, 55 Harrington St, The Rocks NSW 2000 >>>>> PO Box H58, Australia Square, Sydney NSW 1215 >>>>> >>>>> >>>> >>>> >>>> -- >>>> *Franc Carter* | Systems architect | Sirca Ltd >>>> <marc.zianideferra...@sirca.org.au> >>>> franc.car...@sirca.org.au | www.sirca.org.au >>>> Tel: +61 2 8355 2514 >>>> Level 4, 55 Harrington St, The Rocks NSW 2000 >>>> PO Box H58, Australia Square, Sydney NSW 1215 >>>> >>>> >>> >> >> >> -- >> *Franc Carter* | Systems architect | Sirca Ltd >> <marc.zianideferra...@sirca.org.au> >> franc.car...@sirca.org.au | www.sirca.org.au >> Tel: +61 2 8355 2514 >> Level 4, 55 Harrington St, The Rocks NSW 2000 >> PO Box H58, Australia Square, Sydney NSW 1215 >> >> >> > > > -- > *Franc Carter* | Systems architect | Sirca Ltd > <marc.zianideferra...@sirca.org.au> > franc.car...@sirca.org.au | www.sirca.org.au > Tel: +61 2 8355 2514 > Level 4, 55 Harrington St, The Rocks NSW 2000 > PO Box H58, Australia Square, Sydney NSW 1215 > > > -- *Franc Carter* | Systems architect | Sirca Ltd <marc.zianideferra...@sirca.org.au> franc.car...@sirca.org.au | www.sirca.org.au Tel: +61 2 8355 2514 Level 4, 55 Harrington St, The Rocks NSW 2000 PO Box H58, Australia Square, Sydney NSW 1215
