Hey Jun, We've been running into this issue when running perf.Performance as per http://blog.liveramp.com/2013/04/08/kafka-0-8-producer-performance-2/. When running it using 100K messages, it works fine on Windows with about 20-30K msg/s. But when running it with 1M messages, then the broker fails as per the message below. It does not appear that modifying the JVM memory configurations nor running on SSDs has any effect. As for JVMs - no plug ins and we've tried both 1.6 and OpenJDK 1.7.
This looks like a JVM memory map issue on Windows issue - perhaps running some System.gc() to prevent the roll? Any thoughts? Thanks! Denny On 7/9/13 7:55 AM, "Jun Rao" <jun...@gmail.com> wrote: >A couple of users seem to be able to get 0.8 working on Windows. Any thing >special about your Windows environment? Are you using any jvm plugins? > >Thanks, > >Jun > > >On Tue, Jul 9, 2013 at 12:59 AM, Timothy Chen <tnac...@gmail.com> wrote: > >> Hi all, >> >> I've tried pushing a large amount of messages into Kafka on Windows, and >> got the following error: >> >> Caused by: java.io.IOException: The requested operation cannot be >>performed >> on a >> file with a user-mapped section open >> at java.io.RandomAccessFile.setLength(Native Method) >> at kafka.log.OffsetIndex.liftedTree2$1(OffsetIndex.scala:263) >> at kafka.log.OffsetIndex.resize(OffsetIndex.scala:262) >> at kafka.log.OffsetIndex.trimToValidSize(OffsetIndex.scala:247) >> at kafka.log.Log.rollToOffset(Log.scala:518) >> at kafka.log.Log.roll(Log.scala:502) >> at kafka.log.Log.maybeRoll(Log.scala:484) >> at kafka.log.Log.append(Log.scala:297) >> ... 19 more >> >> I suspect that Windows is not releasing memory mapped file references >>soon >> enough. >> >> I wonder if there is any good workaround or solutions for this? >> >> Thanks! >> >> Tim >>
