I believe this is a bug with the estimation of tasks, however not aware of any JIRA that covers the issue.
On 28 April 2017 at 06:19, Abhishek Kumar Maheshwari < abhishek.maheshw...@timesinternet.in> wrote: > Hi , > > > > I will try with JMX but I try with tpstats. In tpstats its showing pending > compaction as 0 but in nodetool compactionstats its showing 3. So, for me > its seems strange. > > > > *Thanks & Regards,* > *Abhishek Kumar Maheshwari* > *+91- 9999805591 <+91%2099998%2005591> (Mobile)* > > Times Internet Ltd. | A Times of India Group Company > > FC - 6, Sector 16A, Film City, Noida, U.P. 201301 | INDIA > > *P** Please do not print this email unless it is absolutely necessary. > Spread environmental awareness.* > > > > *From:* Alain RODRIGUEZ [mailto:arodr...@gmail.com] > *Sent:* Thursday, April 27, 2017 4:45 PM > *To:* user@cassandra.apache.org > *Subject:* Re: [Cassandra] nodetool compactionstats not showing pending > task. > > > > Maybe try to monitor through JMX with > 'org.apache.cassandra.db:type=CompactionManager', > attribute 'Compactions' or 'CompactionsSummary' > > > > C*heers > > ----------------------- > > Alain Rodriguez - @arodream - al...@thelastpickle.com > > France > > > > The Last Pickle - Apache Cassandra Consulting > > http://www.thelastpickle.com > > > > 2017-04-27 12:27 GMT+02:00 Alain RODRIGUEZ <arodr...@gmail.com>: > > Hi, > > > > I am not sure about this one. It happened to me in the past as well. I > never really wondered about it as it was gone after a while or a restart > off the top of my head. To get rid of it, a restart might be enough. > > > > But if you feel like troubleshooting this, I think the first thing is to > try to see if compactions are really happening. Maybe using JMX, I believe > `org.apache.cassandra.metrics:type=Compaction,name=PendingTasks` is what > is used by 'nodetool compactionstats' but they might be more info there. > Actually I don't really know what the 'system.compactions_in_progress' > was replaced by, but any way to double check you could think of would > probably help understanding better what's happening. > > > > Does someone now the way to check pending compactions details in 3.0.9? > > > > C*heers, > > ----------------------- > > Alain Rodriguez - @arodream - al...@thelastpickle.com > > France > > > > The Last Pickle - Apache Cassandra Consulting > > http://www.thelastpickle.com > > > > 2017-04-25 15:13 GMT+02:00 Abhishek Kumar Maheshwari <Abhishek.Maheshwari@ > timesinternet.in>: > > Hi All, > > > > In Production, I am using Cassandra 3.0.9. > > > > While I am running nodetool compactionstats command its just showing count > not any other information like below: > > > > [mohit.kundra@AdtechAppXXXX bin]$ ./nodetool -h XXX.XX.XX.XX > compactionstats > > pending tasks: 3 > > [mohit.kundra@AdtechAppXXXXX bin]$ > > > > So, this is some Cassandra bug or what? I am not able to understand. > > > > > > *Thanks & Regards,* > *Abhishek Kumar Maheshwari* > *+91- 9999805591 <+91%2099998%2005591> (Mobile)* > > Times Internet Ltd. | A Times of India Group Company > > FC - 6, Sector 16A, Film City, Noida, U.P. 201301 | INDIA > > *P** Please do not print this email unless it is absolutely necessary. > Spread environmental awareness.* > > > > "Learn journalism at India's largest media house - The Times of India > Group. Last Date 28 April, 2017. Visit www.tcms.in for details." > > > > >
