Hi, could you please share core dump file? If not, it would be helpful to know what is CPU architecture on this server.
On Mon, Apr 10, 2017 at 2:53 AM, Kamil Misuth <[email protected]> wrote: > Greetings, > > OpenJDK (7 and 8) HotSpot JVM SIGSEGVs on FreeBSD 11 as soon as node joins a > topology and starts to communicate via DirectNioClientWorker. > The root cause is DirectByteBufferStreamImpl (both versions) which uses > GridUnsafe.getXXX/putXXX(Object object, offset, value) methods to manipulate > DirectByteBuffer, whereas it should really be using > GridUnsafe.getXXX/putXXX(address, value), since DirectByteBuffer is > allocated on C heap (off java heap). > Notice that at least one instance of the same problem is known to exist in > another project using Unsafe > https://issues.apache.org/jira/browse/CASSANDRA-8325 . > The OpenJDK source of Unsafe is more or less clear on this > http://hg.openjdk.java.net/jdk8u/jdk8u60/jdk/file/935758609767/src/share/classes/sun/misc/Unsafe.java#l391 > I have prepared a simple fix here > https://github.com/apache/ignite/compare/1.9.0-rc2...kimec:freebsd-support . > However, I am not sure if the solution is right in regard to overall ignite > performance. > I've tried to compile ignite-core with tests and after applying my changes > was able to pass all the basic stuff until the performance test stage at > which point my machine run out of RAM and swap space (some 10 GB)... Not > sure if this is how the tests are supposed to be. After compiling with > -DskipTests I was able to create FreeBSD 11 - CentOS 7 two node cluster and > everything seemed OK (the two nodes shared an IGFS instance backed by > replicated caches). > Please note that OpenJDK on different systems as well as Oracle JDK (via > Linux compatility layer) on FreeBSD seem to be more forgiving and does not > SIGSEGV. > I've based my branch on 1.9.0-rc2 since tag 1.9.0 has already POM with > version 2.0. > > Kamil > >
