Re: Phantom growth resulting automatically node shutdown
Thank you all guys! We will plan to upgrade our cluster to the latest 3.11.x version. 2018-04-20 7:09 GMT+08:00 kurt greaves: > This was fixed (again) in 3.0.15. https://issues.apache. > org/jira/browse/CASSANDRA-13738 > > On Fri., 20 Apr. 2018, 00:53 Jeff Jirsa, wrote: > >> There have also been a few sstable ref counting bugs that would over >> report load in nodetool ring/status due to overlapping normal and >> incremental repairs (which you should probably avoid doing anyway) >> >> -- >> Jeff Jirsa >> >> >> On Apr 19, 2018, at 9:27 AM, Rahul Singh >> wrote: >> >> I’ve seen something similar in 2.1. Our issue was related to file >> permissions being flipped due to an automation and C* stopped seeing >> Sstables so it started making new data — via read repair or repair >> processes. >> >> In your case if nodetool is reporting data that means that it’s growing >> due to data growth. What does your cfstats / tablestats day? Are you >> monitoring your key tables data via cfstats metrics like SpaceUsedLive or >> SpaceUsedTotal. What is your snapshottjng / backup process doing? >> >> -- >> Rahul Singh >> rahul.si...@anant.us >> >> Anant Corporation >> >> On Apr 19, 2018, 7:01 AM -0500, horschi , wrote: >> >> Did you check the number of files in your data folder before & after the >> restart? >> >> I have seen cases where cassandra would keep creating sstables, which >> disappeared on restart. >> >> regards, >> Christian >> >> >> On Thu, Apr 19, 2018 at 12:18 PM, Fernando Neves < >> fernando1ne...@gmail.com> wrote: >> >>> I am facing one issue with our Cassandra cluster. >>> >>> Details: Cassandra 3.0.14, 12 nodes, 7.4TB(JBOD) disk size in each node, >>> ~3.5TB used physical data in each node, ~42TB whole cluster and default >>> compaction setup. This size maintain the same because after the retention >>> period some tables are dropped. >>> >>> Issue: Nodetool status is not showing the correct used size in the >>> output. It keeps increasing the used size without limit until automatically >>> node shutdown or until our sequential scheduled restart(workaround 3 times >>> week). After the restart, nodetool shows the correct used space but for few >>> days. >>> Did anybody have similar problem? Is it a bug? >>> >>> Stackoverflow: https://stackoverflow.com/questions/49668692/cassandra- >>> nodetool-status-is-not-showing-correct-used-space >>> >>> >>
Re: Phantom growth resulting automatically node shutdown
This was fixed (again) in 3.0.15. https://issues.apache.org/jira/browse/CASSANDRA-13738 On Fri., 20 Apr. 2018, 00:53 Jeff Jirsa,wrote: > There have also been a few sstable ref counting bugs that would over > report load in nodetool ring/status due to overlapping normal and > incremental repairs (which you should probably avoid doing anyway) > > -- > Jeff Jirsa > > > On Apr 19, 2018, at 9:27 AM, Rahul Singh > wrote: > > I’ve seen something similar in 2.1. Our issue was related to file > permissions being flipped due to an automation and C* stopped seeing > Sstables so it started making new data — via read repair or repair > processes. > > In your case if nodetool is reporting data that means that it’s growing > due to data growth. What does your cfstats / tablestats day? Are you > monitoring your key tables data via cfstats metrics like SpaceUsedLive or > SpaceUsedTotal. What is your snapshottjng / backup process doing? > > -- > Rahul Singh > rahul.si...@anant.us > > Anant Corporation > > On Apr 19, 2018, 7:01 AM -0500, horschi , wrote: > > Did you check the number of files in your data folder before & after the > restart? > > I have seen cases where cassandra would keep creating sstables, which > disappeared on restart. > > regards, > Christian > > > On Thu, Apr 19, 2018 at 12:18 PM, Fernando Neves > wrote: > >> I am facing one issue with our Cassandra cluster. >> >> Details: Cassandra 3.0.14, 12 nodes, 7.4TB(JBOD) disk size in each node, >> ~3.5TB used physical data in each node, ~42TB whole cluster and default >> compaction setup. This size maintain the same because after the retention >> period some tables are dropped. >> >> Issue: Nodetool status is not showing the correct used size in the >> output. It keeps increasing the used size without limit until automatically >> node shutdown or until our sequential scheduled restart(workaround 3 times >> week). After the restart, nodetool shows the correct used space but for few >> days. >> Did anybody have similar problem? Is it a bug? >> >> Stackoverflow: >> https://stackoverflow.com/questions/49668692/cassandra-nodetool-status-is-not-showing-correct-used-space >> >> >
Re: Phantom growth resulting automatically node shutdown
There have also been a few sstable ref counting bugs that would over report load in nodetool ring/status due to overlapping normal and incremental repairs (which you should probably avoid doing anyway) -- Jeff Jirsa > On Apr 19, 2018, at 9:27 AM, Rahul Singhwrote: > > I’ve seen something similar in 2.1. Our issue was related to file permissions > being flipped due to an automation and C* stopped seeing Sstables so it > started making new data — via read repair or repair processes. > > In your case if nodetool is reporting data that means that it’s growing due > to data growth. What does your cfstats / tablestats day? Are you monitoring > your key tables data via cfstats metrics like SpaceUsedLive or > SpaceUsedTotal. What is your snapshottjng / backup process doing? > > -- > Rahul Singh > rahul.si...@anant.us > > Anant Corporation > >> On Apr 19, 2018, 7:01 AM -0500, horschi , wrote: >> Did you check the number of files in your data folder before & after the >> restart? >> >> I have seen cases where cassandra would keep creating sstables, which >> disappeared on restart. >> >> regards, >> Christian >> >> >>> On Thu, Apr 19, 2018 at 12:18 PM, Fernando Neves >>> wrote: >>> I am facing one issue with our Cassandra cluster. >>> >>> Details: Cassandra 3.0.14, 12 nodes, 7.4TB(JBOD) disk size in each node, >>> ~3.5TB used physical data in each node, ~42TB whole cluster and default >>> compaction setup. This size maintain the same because after the retention >>> period some tables are dropped. >>> >>> Issue: Nodetool status is not showing the correct used size in the output. >>> It keeps increasing the used size without limit until automatically node >>> shutdown or until our sequential scheduled restart(workaround 3 times >>> week). After the restart, nodetool shows the correct used space but for few >>> days. >>> Did anybody have similar problem? Is it a bug? >>> >>> Stackoverflow: >>> https://stackoverflow.com/questions/49668692/cassandra-nodetool-status-is-not-showing-correct-used-space >>> >>
Re: Phantom growth resulting automatically node shutdown
I’ve seen something similar in 2.1. Our issue was related to file permissions being flipped due to an automation and C* stopped seeing Sstables so it started making new data — via read repair or repair processes. In your case if nodetool is reporting data that means that it’s growing due to data growth. What does your cfstats / tablestats day? Are you monitoring your key tables data via cfstats metrics like SpaceUsedLive or SpaceUsedTotal. What is your snapshottjng / backup process doing? -- Rahul Singh rahul.si...@anant.us Anant Corporation On Apr 19, 2018, 7:01 AM -0500, horschi, wrote: > Did you check the number of files in your data folder before & after the > restart? > > I have seen cases where cassandra would keep creating sstables, which > disappeared on restart. > > regards, > Christian > > > > On Thu, Apr 19, 2018 at 12:18 PM, Fernando Neves > > wrote: > > > > I am facing one issue with our Cassandra cluster. > > > > > > > > Details: Cassandra 3.0.14, 12 nodes, 7.4TB(JBOD) disk size in each > > > > node, ~3.5TB used physical data in each node, ~42TB whole cluster and > > > > default compaction setup. This size maintain the same because after the > > > > retention period some tables are dropped. > > > > > > > > Issue: Nodetool status is not showing the correct used size in the > > > > output. It keeps increasing the used size without limit until > > > > automatically node shutdown or until our sequential scheduled > > > > restart(workaround 3 times week). After the restart, nodetool shows the > > > > correct used space but for few days. > > > > Did anybody have similar problem? Is it a bug? > > > > > > > > Stackoverflow: > > > > https://stackoverflow.com/questions/49668692/cassandra-nodetool-status-is-not-showing-correct-used-space > > > >
Re: Phantom growth resulting automatically node shutdown
Did you check the number of files in your data folder before & after the restart? I have seen cases where cassandra would keep creating sstables, which disappeared on restart. regards, Christian On Thu, Apr 19, 2018 at 12:18 PM, Fernando Neveswrote: > I am facing one issue with our Cassandra cluster. > > Details: Cassandra 3.0.14, 12 nodes, 7.4TB(JBOD) disk size in each node, > ~3.5TB used physical data in each node, ~42TB whole cluster and default > compaction setup. This size maintain the same because after the retention > period some tables are dropped. > > Issue: Nodetool status is not showing the correct used size in the output. > It keeps increasing the used size without limit until automatically node > shutdown or until our sequential scheduled restart(workaround 3 times > week). After the restart, nodetool shows the correct used space but for few > days. > Did anybody have similar problem? Is it a bug? > > Stackoverflow: https://stackoverflow.com/ques > tions/49668692/cassandra-nodetool-status-is-not-showing-correct-used-space > >
Phantom growth resulting automatically node shutdown
I am facing one issue with our Cassandra cluster. Details: Cassandra 3.0.14, 12 nodes, 7.4TB(JBOD) disk size in each node, ~3.5TB used physical data in each node, ~42TB whole cluster and default compaction setup. This size maintain the same because after the retention period some tables are dropped. Issue: Nodetool status is not showing the correct used size in the output. It keeps increasing the used size without limit until automatically node shutdown or until our sequential scheduled restart(workaround 3 times week). After the restart, nodetool shows the correct used space but for few days. Did anybody have similar problem? Is it a bug? Stackoverflow: https://stackoverflow.com/questions/49668692/cassandra- nodetool-status-is-not-showing-correct-used-space