Fyi regarding disk space utilization, I submitted a patch to track ZK log and snapshot directory sizes: ZOOKEEPER-1423
Best, Eddie Em 12/09/2015 11:44, "Flavio Junqueira" <f...@apache.org> escreveu: > We do support jmx extensively, and I believe you can use it Ganglia. As > for metrics, things that come to mind now on top of what Otis suggested are: > > - Frequency of leader election (if they happen too frequently, then that's > going to affect your availability and probably an indication of something > wrong) > - Disk space utilization > - Number of sessions open per server > - Number of znodes, database size and such > > You can also use four-letter words to get some info out of servers. Check > the documentation for the ones available. > > -Flavio > > > On 12 Sep 2015, at 02:25, Otis Gospodnetić <otis.gospodne...@gmail.com> > wrote: > > > > Hi Prabhjot, > > > > Short answer: yes > > I used to think ZK was so super stable that it was one of those things > that > > don't require any management, but on a few occasions I witnessed complex > > distributed applications nearly fall apart because of issues with ZK. We > > use our own SPM for ZooKeeper to monitor all our ZK nodes. I'm not a ZK > > expert, but metrics like Request Latency, Watch Count, Outstanding > Requests > > seem important. > > > > Otis > > -- > > Monitoring * Alerting * Anomaly Detection * Centralized Log Management > > Solr & Elasticsearch Support * http://sematext.com/ > > > > > > On Tue, Aug 18, 2015 at 9:11 AM, Prabhjot Bharaj <prabhbha...@gmail.com> > > wrote: > > > >> Hi, > >> > >> Zookeeper monitoring - I was going through the 'Monitoring' section in > >> http://kafka.apache.org/coding-guide.html > >> > >> I have setup Ganglia to monitor all the stats inocming from kafka jmx > port > >> But, in addition, there are a bunch of stats that Zookeeper also > exposes in > >> its jmx port. > >> They are documented here: > >> https://zookeeper.apache.org/doc/r3.3.4/zookeeperJMX.html > >> > >> Is it worthwhile setting up Ganglia for Zookeeper along with Kafka ? > >> If yes, in your experience, what are the essential stats to look out for > >> (especially in relation to its use with Kafka) > >> > >> Looking forward to your response. > >> > >> Thanks, > >> prabcs > >> > >
