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what is your workflow when developing? - Kafka - [mail # dev]
...Curious on how you guys develop and debug locally with the kafka source?  Do you run all the various services locally, or mock them?  Would it be possible to actually trace through...
   Author: S Ahmed, 2012-06-01, 02:27
understanding how consumers pull messages off - Kafka - [mail # user]
...How do you actually setup a consumer group? i.e. a group of consumer processes that will be pulling messages of a particular brokers topic?  is done using zookeeper, does this mean for ...
   Author: S Ahmed, 2012-05-31, 13:35
[expand - 5 more] - Re: filter before flush to disk - Kafka - [mail # user]
...Also another issue would be duplicate messages, since kafka doesn't guarantee that each message is unique, you would have to somehow coordinate between the consumers if a message has been ac...
   Author: S Ahmed, 2012-05-29, 13:30
[expand - 1 more] - Re: Solution for blocking fsync in 0.8 - Kafka - [mail # dev]
...so 40ms for how many messages and what kind of payload?  And any idea how much data is blocked? (msgs/payload)  Even though 40ms doesn't seem like much, it is def. something that c...
   Author: S Ahmed, 2012-05-26, 09:50
[expand - 1 more] - Re: Kafka events to S3? - Kafka - [mail # user]
...Is there a writeup on the algorithm used to do that? Sounds interesting :)  Agreed, this sounds like more of a contrib.  On Wed, May 23, 2012 at 1:49 PM, Jay Kreps  wrote: &nb...
   Author: S Ahmed, 2012-05-23, 18:19
[expand - 3 more] - Re: since flushes are batched, is it still io intensive? - Kafka - [mail # user]
...then why have an operations page? j/k  thanks Jay!  Just a note, and I hope nobody takes it the wrong way, but I was lookign at the flume project and I really appreciated how much ...
   Author: S Ahmed, 2012-05-12, 01:21
[expand - 2 more] - Re: where does the in-memory log to file persistence take place - Kafka - [mail # dev]
...couldn't this be written in a way that it doesn't block? or limits the time, like it makes a copy of the reference, then replaces it when a newed up channel (synchronized).  Oh, this is...
   Author: S Ahmed, 2012-05-10, 04:35
kafka file persistance blocks, ramifications on payload sizes and flush timings - Kafka - [mail # user]
...On the dev list I was curious as to how kafka persists the in-memory to disk, and Jay responded with:  "filechannel.force() always fully syncs the file to disk. This is done irrespectiv...
   Author: S Ahmed, 2012-05-09, 15:19
[expand - 2 more] - Re: kafka and ruby client, beginner questions - Kafka - [mail # user]
...Ok sorry I think I was confused.  Once I have the offset, say I have the first offset (would it be 0?), I then call consume and it gets me the next message, and I keep calling consume t...
   Author: S Ahmed, 2012-05-07, 13:57
[expand - 1 more] - Re: my performance numbers - Kafka - [mail # user]
...Actually I was thinking, since my payloads sizes are larger, it would make sense to flush to disk more often right?  Since I only have 4GB ram on the server.  What effect does the ...
   Author: S Ahmed, 2012-05-07, 13:33
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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