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Re: how to measure consumer time for x number of messages - Kafka - [mail # user]
...There are message-rate mbeans that you can read. You can hook upsomething like jconsole/visualvm to your consumer instance and explorethe mbeans. E.g., we have a messages/sec meter for each ...
   Author: Joel Koshy, 2014-04-21, 23:05
Re: How to calculate number of partitions? - Kafka - [mail # user]
...Does this help:https://cwiki.apache.org/confluence/display/KAFKA/FAQ#FAQ-HowdoIchoosethenumberofpartitionsforatopic?On Wed, Apr 16, 2014 at 03:34:28PM -0700, Cassa L wrote: ...
   Author: Joel Koshy, 2014-04-16, 22:40
Re: [DISCUSS] 0.8.1.1 vs 0.8.2 - Kafka - [mail # dev]
...The 0.8.1 tag came back because some committers had the tag locallyand did a push before updating their local checkouts. The tag + branchcombination is confusing. E.g., if you have a local 0...
   Author: Joel Koshy, 2014-04-16, 18:27
[expand - 1 more] - Re: HighLevelConsumer question - Kafka - [mail # user]
...The consumer will issue multi-fetch requests across all the brokersthat it consumes from. i.e., it will fetch chunks (if available) fromall the brokers and put them into "chunk-queues" that ...
   Author: Joel Koshy, 2014-04-14, 18:28
[expand - 1 more] - Re: cpu and memory used by kafka broker. - Kafka - [mail # user]
...That's a fairly old release - you may want to try 0.8.1 (or wait for0.8.1.1 which should be out in late April since 0.8.1 has some knownbugs)?That said, I tried locally but wasn't able to re...
   Author: Joel Koshy, 2014-04-12, 00:33
[expand - 1 more] - Re: Issue with kafka cluster with broker not able to send messages. - Kafka - [mail # user]
...Interesting - can you share those thread dumps?Also, your process file handle limit is extremely low (and differentfrom what seems to be the default for your user-id from your earliermessage...
   Author: Joel Koshy, 2014-04-11, 17:37
Re: High level consumer replaying the messages - Kafka - [mail # user]
...You don't need to match the number of partitions. Your nine consumersshould distribute those 12 partitions amongst themselves. Are you byany chance consuming across a high latency link? Can ...
   Author: Joel Koshy, 2014-04-11, 00:49
[KAFKA-1373] LogCleaner assumes first dirty offset zero if there is no cleaner checkpoint - Kafka - [issue]
...If you try enabling the compaction policy on a topic that already exists and if its first segment starts with anything other than zero you will see something like this:java.lang.IllegalArgum...
http://issues.apache.org/jira/browse/KAFKA-1373    Author: Joel Koshy, 2014-04-11, 00:19
Re: console producer question - Kafka - [mail # user]
...This may be because the 0.8 producer sticks to a partition duringmetadata refresh intervals.  You can get around that by specifying akey:Each line would then be:KEY###MESSAGEThe key is ...
   Author: Joel Koshy, 2014-04-09, 23:45
[KAFKA-1350] Fix excessive state change logging - Kafka - [issue]
...I can provide steps to reproduce this issue.  The state change logger needsto be guarded (to check if trace logging is turned on or not).The delete topic patch significantly increased t...
http://issues.apache.org/jira/browse/KAFKA-1350    Author: Joel Koshy, 2014-04-09, 23:32
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB