Hi Jun, In a previous email thread http://markmail.org/search/?q=kafka+log.retention.bytes#query:kafka%20log.retention.bytes+page:1+mid:qnt4pbq47goii2ui+state:results, you said log.retention.bytes is for each partition. Could you clarify on that?
Say if I have a topic with three partitions. I want to limit the disk space to 1Gb for each partition. Then log.retention.bytes should be set to 1Gb (not 3Gb). Is that right? If I want to use log.retention.bytes.per.topic to set the same limit, should it be set to 1G or 3G? Libo -----Original Message----- From: Jun Rao [mailto:jun...@gmail.com] Sent: Saturday, August 17, 2013 12:40 AM To: users@kafka.apache.org Subject: Re: questtion about log.retention.bytes log.retention.bytes is for all topics that are not included in log.retention.bytes.per.topic (which defines a map of topic -> size). Currently, we don't have a total size limit across all topics. Thanks, Jun On Fri, Aug 16, 2013 at 2:00 PM, Paul Christian <pchrist...@salesforce.com>wrote: > According to the Kafka 8 documentation under broker configuration. > There are these parameters and their definitions. > > log.retention.bytes -1 The maximum size of the log before deleting it > log.retention.bytes.per.topic "" The maximum size of the log for some > specific topic before deleting it > > I'm curious what the first value 'log.retention.bytes' is for if the > second one is for per topic logs, because aren't all logs generated > per topic? Is this an aggregate value across topics? > > Related question, is there a parameter for kafka where you can say > only hold this much TOTAL data across all topic ( logs/index together )? I.e. > our hosts have this much available space and so value > log.retention.whatever.aggregate == 75% total disk space. >