There is no preallocation in Kafka. I do remember seeing incorrect results from du before.
Thanks, Jun On Thu, Aug 9, 2012 at 10:29 AM, xiaoyu wang <xiaoyu.w...@gmail.com> wrote: > Does kafka pre-allocate 1GB for each segment? It shows that these segment > files are all open and used by kafka broker. > > On Wed, Aug 8, 2012 at 4:14 PM, xiaoyu wang <xiaoyu.w...@gmail.com> wrote: > > > Jun, > > > > this does not seem to be a du problem because after restarting brokers, > du > > and ls show the same file size. > > > > > > On Wed, Aug 8, 2012 at 3:55 PM, Jun Rao <jun...@gmail.com> wrote: > > > >> Hmm, this seems like an issue with du. > >> > >> Thanks > >> > >> Jun > >> > >> On Wed, Aug 8, 2012 at 3:17 PM, xiaoyu wang <xiaoyu.w...@gmail.com> > >> wrote: > >> > >> > Here is a sample. The highlighted lines are those showing different > >> sizes > >> > in du and ls > >> > > >> > *du output > >> > * > >> > 513M ./00000001197773741184.kafka > >> > 1.0G ./00000001200458096891.kafka > >> > 1.0G ./00000001200994968784.kafka > >> > 1.0G ./00000001201531839884.kafka > >> > 1.0G ./00000001202068711094.kafka > >> > 513M ./00000001011479389046.kafka > >> > > >> > *ls output > >> > * > >> > -rw-r--r-- 1 kafka kafka 536871053 Aug 8 13:01 > >> 00000001197773741184.kafka > >> > -rw-r--r-- 1 kafka kafka 536871893 Aug 8 13:36 > >> 00000001200458096891.kafka > >> > -rw-r--r-- 1 kafka kafka 536871100 Aug 8 13:45 > >> 00000001200994968784.kafka > >> > -rw-r--r-- 1 kafka kafka 536871210 Aug 8 13:49 > >> 00000001201531839884.kafka > >> > -rw-r--r-- 1 kafka kafka 536871063 Aug 8 14:00 > >> 00000001202068711094.kafka > >> > -rw-r--r-- 1 kafka kafka 536871139 Aug 6 07:02 > >> 00000001011479389046.kafka > >> > > >> > On Wed, Aug 8, 2012 at 2:58 PM, Joel Koshy <jjkosh...@gmail.com> > wrote: > >> > > >> > > The mailing list does not accept attachments - you will need to > either > >> > > paste here or externally, say on gist. > >> > > > >> > > Thanks, > >> > > > >> > > Joel > >> > > > >> > > On Wed, Aug 8, 2012 at 2:52 PM, xiaoyu wang <xiaoyu.w...@gmail.com> > >> > wrote: > >> > > > >> > > > Neha, > >> > > > > >> > > > I have attached the du and ls output for one of the partitions. > >> Looks > >> > > like > >> > > > for some segments, du is showing 1GB while ls shows 513MB. Let me > >> know > >> > if > >> > > > you need additional info. > >> > > > > >> > > > Thanks, > >> > > > > >> > > > -Xiaoyu > >> > > > > >> > > > > >> > > > > >> > > > On Wed, Aug 8, 2012 at 12:29 PM, Neha Narkhede < > >> > neha.narkh...@gmail.com > >> > > >wrote: > >> > > > > >> > > >> Xiaoyu, > >> > > >> > >> > > >> Please could you paste the log statements that specify which > files > >> are > >> > > >> deleted by the broker and also the detailed output by du on the > >> Kafka > >> > > >> log directory ? > >> > > >> If the broker says it has garbage collected some log segments, > >> space > >> > > >> should free up. > >> > > >> > >> > > >> Thanks, > >> > > >> Neha > >> > > >> > >> > > >> On Wed, Aug 8, 2012 at 12:22 PM, xiaoyu wang < > >> xiaoyu.w...@gmail.com> > >> > > >> wrote: > >> > > >> > Hi all, > >> > > >> > > >> > > >> > I am running kafka-0.7.0 and found that even though expired > >> segments > >> > > are > >> > > >> > deleted by broker, the disk space is not released. So, du shows > >> > that a > >> > > >> > partition is 450 GB, but the total size of the files in the > >> > partition > >> > > is > >> > > >> > only about 250GB. Is this a bug? We are using raid10. > >> > > >> > > >> > > >> > Thanks, > >> > > >> > > >> > > >> > -Xiaoyu > >> > > >> > >> > > > > >> > > > > >> > > > >> > > >> > > > > >
