Error: "Could not initialize class com.sun.jna.Native"
The error occurs on the Cassandra database startup. Cassandra throws the following exception while starting:
ERROR o.a.c.service.CassandraDaemon - Exception in thread Thread[MemtableFlushWriter:1,5,main]
java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native
at org.apache.cassandra.utils.memory.MemoryUtil.allocate(MemoryUtil.java:82) ~[apache-cassandra-2.2.4.jar:2.2.4]
at org.apache.cassandra.io.util.Memory.<init>(Memory.java:74) ~[apache-cassandra-clientutil-2.2.4.jar:2.2.4]
...
Solution
This issue is typically caused by a noexec flag set on the temporary directory.
There are two possible ways to resolve the issue:
Remount the tmp directory without the noexec flag.
or
Configure Cassandra to use another location as a temporary directory. To do that...
... for a ZIP installation:
Stop Upsource:
<upsource_home>/bin/upsource.sh stopRun the following command:
<Upsource_home>/apps/cassandra/bin/cassandra.sh configure -J-Djava.io.tmpdir=$HOME
... for a Docker installation:
Stop Upsource:
docker exec <containerId> stopRun the following command:
docker run -it -v <path to data directory>:/opt/upsource/data \ -v <path to conf directory>:/opt/upsource/conf \ -v <path to logs directory>:/opt/upsource/logs \ -v <path to backups directory>:/opt/upsource/backups \ -p <port on host>:XXXX \ --entrypoint=/bin/bash jetbrains/upsource:<version> \ /opt/upsource/apps/cassandra/bin/cassandra.sh \ configure -J-Djava.io.tmpdir=$HOME