We're talking about `ulimit` (CLI tool) and the `nofile` limit (number of open files), which you can access via `ulimit -n`.
Examples: https://access.redhat.com/solutions/61334 https://stackoverflow.com/questions/21515463/how-to-increase-maximum-file-open-limit-ulimit-in-ubuntu Depending on the operating system, the default setting is often pretty low (e.g. 1024). Bump this up to sth higher, like 16k or 32k. Of course, an even better approach is to monitor this metric on your servers/brokers, and -- with this collected information -- bump the setting to a reasonable value for your environment. -Michael On Sun, Mar 26, 2017 at 7:41 PM, Sachin Mittal <sjmit...@gmail.com> wrote: > Hi, > Could you please tell us what did you change for ulimit and how. > > We also are seem to be facing same issue. > > Thanks > Sachin > > > On Tue, Mar 21, 2017 at 9:22 PM, Mathieu Fenniak < > mathieu.fenn...@replicon.com> wrote: > > > Thanks Guozhang. > > > > For my part, turns out I was hitting ulimit on my open file descriptors. > > Phew, easy to fix... once I figured it out. :-) > > > > Mathieu > > > > > > On Fri, Mar 17, 2017 at 4:14 PM, Guozhang Wang <wangg...@gmail.com> > wrote: > > > > > Hi Mathieu, > > > > > > We are aware of that since long time ago and I have been looking into > > this > > > issue, turns out to be a known issue in RocksDB: > > > > > > https://github.com/facebook/rocksdb/issues/1688 > > > > > > And the corresponding fix (https://github.com/facebook/ > rocksdb/pull/1714 > > ) > > > has been merged in master but marked for > > > > > > - v5.1.4 <https://github.com/facebook/rocksdb/releases/tag/v5.1.4> > > > > > > only while the latest release is 5.1.2. > > > > > > > > > Guozhang > > > > > > > > > On Fri, Mar 17, 2017 at 10:27 AM, Mathieu Fenniak < > > > mathieu.fenn...@replicon.com> wrote: > > > > > > > Hey all, > > > > > > > > So... what does it mean to have a RocksDBException with a message > that > > > just > > > > has a single character? "e", "q", "]"... I've seen a few. Has > anyone > > > seen > > > > this before? > > > > > > > > Two example exceptions: > > > > https://gist.github.com/mfenniak/c56beb6d5058e2b21df0309aea224f12 > > > > > > > > Kafka Streams 0.10.2.0. Both of these errors occurred during state > > store > > > > initialization. I'm running a single Kafka Streams thread per > server, > > > this > > > > occurred on two servers about a half-hour apart. > > > > > > > > Mathieu > > > > > > > > > > > > > > > > -- > > > -- Guozhang > > > > > >
