Could not access pidfile for Cassandra

Question

I were working with cassandra with no problem last hour ,but now I can't access to cassandra when I ran cqlsh it gave me this:

Connection error: Could not connect to localhost:9160

So I tried this:

sudo service cassandra status 

And it gave me this:

xss = -ea -javaagent:/usr/share/cassandra/lib/jamm-0.2.5.jar -XX:+UseThreadPriorities - XX:ThreadPriorityPolicy=42 -Xms1024M -Xmx1024M -Xmn200M -XX:+HeapDumpOnOutOfMemoryError -Xss256k

• could not access pidfile for Cassandra

what can I do to resolve this problem?

Thanks in advance,

Answer 1

The pid file is located at /var/run/cassandra.pid. Check that it exists and that the root user has read/write permissions to it. Also make sure that root has rwx permissions to /var/run.

As for your connection refused error, it is most likely caused by cassandra not running. Check the log files in /var/log/cassandra/* for any exceptions.

Answer 2

You may forgot stop the cassandra before delete it.

You must remove the cassandra by purge command and install it again.

Also check your java version that compatible with pre-requirements of the cassandra.(like cassandra 2.* needs java oracle 7.0)