Thanks Stig, Alexandre, Andrew for your comments. For your information I tried upgrading java version from 8 to 11 (openjdk) in our dev environment. I found that the worker process is not started and throwing below error in worker.log.
2019-09-04 10:11:23.054 STDERR [INFO] Unrecognized VM option 'PrintGCDateStamps' 2019-09-04 10:11:23.072 STDERR [INFO] Error: Could not create the Java Virtual Machine. 2019-09-04 10:11:23.073 STDERR [INFO] Error: A fatal exception has occurred. Program will exit. 2019-09-04 10:13:26.211 STDERR [INFO] [0.001s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:artifacts/gc.log instead. 2019-09-04 10:13:26.211 STDERR [INFO] Unrecognized VM option 'PrintGCDateStamps' 2019-09-04 10:13:26.249 STDERR [INFO] Error: Could not create the Java Virtual Machine. 2019-09-04 10:13:26.252 STDERR [INFO] Error: A fatal exception has occurred. Program will exit. It looks like some of the default JVM options defined for worker process are not supported by java 11. So I have overridden the default JVM options in supervisor storm.yaml file and it started working https://github.com/apache/storm/blob/master/conf/defaults.yaml Default: worker.childopts: "-Xmx%HEAP-MEM%m -XX:+PrintGCDetails -Xloggc:artifacts/gc.log -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=1M -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=artifacts/heapdump" Updated to (removed unsupported JVM options ) worker.childopts: "-Xmx768m -Xlog:gc:artifacts/gc.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=artifacts/heapdump" Thanks Dharmarajan On Wed, Sep 4, 2019 at 8:03 PM Andrew Xor <andreas.gramme...@gmail.com> wrote: > Storm 2.0 compiles and runs fine using Java 11, at least in my > experience... > > On Wed, Sep 4, 2019 at 5:28 PM Stig Rohde Døssing <stigdoess...@gmail.com> > wrote: > >> It doesn't support Java 11. Storm 2.0.0 has had work done to support Java >> 11, but the Cassandra and Hadoop parts are blocked by those projects >> lacking support so far. I think the rest of Storm 2.0.0 is likely to work. >> >> I don't believe you need to follow any special steps to migrate to Java >> 11. >> >> Den ons. 4. sep. 2019 kl. 11.30 skrev Dharmarajan Rajendran < >> dharmarajan_rajend...@trimble.com>: >> >>> Hi All, >>> >>> We are currently running storm 1.2.1 on java 8. We are planning to >>> upgrade java 8 to java 11 (openjdk). >>> Does storm 1.2.1 support java 11? Kindly advise if i need to do follow >>> any steps to run storm 1.2.1 on java 11. >>> >>> Thanks >>> Dharmarajan >>> >>
