Thanks a lot Jun. Now im getting the values in ISR expansion rate,whenever broker goes down and then up.
But still ISR shrink rate is always having value 0. what I have done is: I made 3 node cluster.Than created 5 partitions with replica=3. partitions got distributed on 1,2,3 brokers with isr= 1,2,3, and replica = 1,2,3 broker -3 is leader for 2 partitions. then i stopped one broker(say 3),then isr = 1,2 and replica = 1,2,3. In this case I waited for some time to get the ISR shrink value to get updated in my jconsole,but value remained 0 for all attributes of ISR shrink rate. Then I started broker(say 3) that i stopped earlier,what I saw is: ISR expansion rate has the values as: count -2 (on both other brokers 1,2) oneminuterate - 0.012 etc. then I again stopped broker-1,still isr shrink rate not getting any value.Can you please check? One more thing if you can please have a look: How the other attributes like FifteenMinuteRate, OneMinuteRate etc are continuosly changing for any Mbean. One more thing I observed is-when two brokers(broker 1 and 3) were stopped,broker-2 became the leader for all the partitions.After some time when both brokers(broker 1 and 3) were started,they didn't become the leader for any of the partition.only broker-2 remains the leader for all the partitions of my cluster.This shouldn't happen as I am having 9 partitions for 2 topics and broker-2 is leader for all partitions,so for any read/write broker-2 will be handling the producer/consumer requests.what is no of partitions=100 for 10 topics.There will be time delay,so other brokers should also be elected as leader after they are started. Thanks. On Tue, Oct 22, 2013 at 1:25 PM, Monika Garg <gargmon...@gmail.com> wrote: > Thanks a lot Jun. > > Now im getting the values in ISR expansion rate,whenever broker goes down > and then up. > > But still ISR shrink rate is always having value 0. > > what I have done is: > > I made 3 node cluster.Than created 5 partitions with replica=3. > partitions got distributed on 1,2,3 brokers with isr= 1,2,3, and replica = > 1,2,3 > broker -3 is leader for 2 partitions. > > then i stopped one broker(say 3),then isr = 1,2 and replica = 1,2,3. > In this case I waited for some time to get the ISR shrink value to get > updated in my jconsole,but value remained 0 for all attributes of ISR > shrink rate. > > Then I started broker(say 3) that i stopped earlier,what I saw is: > > ISR expansion rate has the values as: > > count -2 (on both other brokers 1,2) > oneminuterate - 0.012 etc. > > then I again stopped broker-1,still isr shrink rate not getting any > value.Can you please check? > > One more thing if you can please have a look: > How the other attributes like FifteenMinuteRate,OneMinuteRate etc are > continuosly changing for any Mbean. > > > > > > > > On Tue, Oct 22, 2013 at 9:00 AM, Jun Rao <jun...@gmail.com> wrote: > >> Updated the description in >> http://kafka.apache.org/documentation.html#monitoring. Does that help >> make >> things clearer? >> >> Thanks, >> >> Jun >> >> >> On Mon, Oct 21, 2013 at 9:43 AM, Monika Garg <gargmon...@gmail.com> >> wrote: >> >> > Thanks for replying Neha.It helped me a lot in getting the things more >> > clear. >> > I just have some doubts for the value of below Mbeans,please have a >> look: >> > (1)ISR expansion >> > rate::"kafka.server":name="ISRShrinksPerSec",type="ReplicaManager" >> > ,non-zero only during broker startup. >> > Does the property (1) mean that,it will be become zero when any broker >> (in >> > a 2 node cluster)is started,and will be non-zero again if both the >> brokers >> > are stopped. >> > (2)ISR shrink >> > rate::"kafka.server":name="ISRShrinksPerSec",type="ReplicaManager" >> > , 0 >> > Will this property(2) be always be zero? >> > Thanks. >> > >> > >> > >> > >> > >> > On Mon, Oct 21, 2013 at 8:35 PM, Neha Narkhede <neha.narkh...@gmail.com >> > >wrote: >> > >> > > You may find this useful - >> > > http://kafka.apache.org/documentation.html#monitoring >> > > >> > > Let us know how we can improve the documentation further. >> > > >> > > Thanks, >> > > Neha >> > > >> > > >> > > On Mon, Oct 21, 2013 at 5:42 AM, Monika Garg <gargmon...@gmail.com> >> > wrote: >> > > >> > > > Hi, >> > > > >> > > > I am getting so many Mbeans from My JMX like >> kafka.server,kafka.network >> > > > etc. >> > > > >> > > > There are of different types and have a lot of attributes. >> > > > >> > > > I am trying to get when the attribute value for any Mbean is getting >> > > > changed. >> > > > >> > > > But no helpful docs I am getting for it on google. >> > > > >> > > > Even the terms used like >> > > > kafka.server":type="FetchRequestPurgatory",name="PurgatorySize",here >> > > > how/when the value of PurgatorySize get change.No clue for this. >> > > > Similar to this there are a lot more values like >> > > > >> > > > when a topic is created,there is 554 values in kafka.network Mbean. >> > > > >> > > > Please any one can share any doc that explains the Mbeans for >> > Kafka-0.8. >> > > > >> > > > It will be really helpful for me. >> > > > Thanks. >> > > > >> > > > -- >> > > > *Moni* >> > > > >> > > >> > >> > >> > >> > -- >> > *Moniii* >> > >> > > > > -- > *Moniii* > -- *Moniii*
