For the first question, yes. For the second one, this is documented in http://kafka.apache.org/documentation.html#brokerconfigs
"Note that all per topic configuration properties below have the format of csv (e.g., "topic1:value1,topic2:value2")." Thanks, Jun On Tue, Aug 27, 2013 at 11:52 AM, Yu, Libo <libo...@citi.com> wrote: > 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. > > >
