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https://issues.apache.org/jira/browse/FLINK-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15294781#comment-15294781
]
Aljoscha Krettek commented on FLINK-3948:
-----------------------------------------
RocksDB seems to be somewhat sensitive to the environment and configuration. I
changed the configuration to this:
{code}
private static class RocksDbOptionsFactory implements OptionsFactory {
final long targetFileSize = 100;
final long writeBufferSize = 100;
@Override
public DBOptions createDBOptions(DBOptions currentOptions) {
currentOptions
.setMaxBackgroundCompactions(1)
.setMaxBackgroundFlushes(1)
.setMaxOpenFiles(1);
return currentOptions;
}
@Override
public ColumnFamilyOptions createColumnOptions(ColumnFamilyOptions
currentOptions) {
currentOptions
.setTargetFileSizeBase(targetFileSize)
.setMaxBytesForLevelBase(4 * targetFileSize)
.setWriteBufferSize(writeBufferSize)
.setMinWriteBufferNumberToMerge(1)
.setMaxWriteBufferNumber(1);
return currentOptions;
}
}
{code}
And now I even get this on my local machine:
{code}
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00000001288fb173, pid=53485, tid=62699
#
# JRE version: Java(TM) SE Runtime Environment (8.0_40-b25) (build 1.8.0_40-b25)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.40-b25 mixed mode bsd-amd64
compressed oops)
# Problematic frame:
# C [librocksdbjni2649341092967859180..jnilib+0xc0173]
rocksdb::TableCache::FindTable(rocksdb::EnvOptions const&,
rocksdb::InternalKeyComparator const&, rocksdb::FileDescriptor const&,
rocksdb::Cache::Handle**, bool, bool, rocksdb::HistogramImpl*)+0x93
#
# Failed to write core dump. Core dumps have been disabled. To enable core
dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /Users/aljoscha/Dev/work/flink/flink-tests/hs_err_pid53485.log
[thread 25603 also had an error]
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
{code}
> EventTimeWindowCheckpointingITCase Fails with Core Dump
> -------------------------------------------------------
>
> Key: FLINK-3948
> URL: https://issues.apache.org/jira/browse/FLINK-3948
> Project: Flink
> Issue Type: Bug
> Components: state backends
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Priority: Critical
>
> It fails because of a core dump in RocksDB.
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