Reputation: 93
I am getting this error, trying to launch Cassandra. I ran rm -rf *
on /var/log/cassandra
and /var/lib/cassandra
, and try to run cassandra
again, with no success. Any idea? I have been looking to similar cases, but not at the launch of Cassandra, and nothing I found helped me to solve this problem.
root@test # cassandra
(...)
16:38:38.551 [MemtableFlushWriter:1] ERROR o.a.c.service.CassandraDaemon - Exception in thread Thread[MemtableFlushWriter:1,5,main]
java.lang.RuntimeException: Insufficient disk space to write 572 bytes
at org.apache.cassandra.db.Directories.getWriteableLocation(Directories.java:349) ~[apache-cassandra-2.2.7.jar:2.2.7]
at org.apache.cassandra.db.Memtable.flush(Memtable.java:324) ~[apache-cassandra-2.2.7.jar:2.2.7]
at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1165) ~[apache-cassandra-2.2.7.jar:2.2.7]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_65]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_65]
at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_65]
16:38:41.785 [ScheduledTasks:1] INFO o.a.cassandra.locator.TokenMetadata - Updating topology for all endpoints that have changed
FYI, if I try to run cassandra
again just after, I got
[main] ERROR o.a.c.service.CassandraDaemon - Port already in use: 7199; nested exception is:
java.net.BindException: Address already in use
So it seems that "CassandraDaemon" is alive; but if I want to run cqlsh
I got this error:
root@test # cqlsh
Warning: custom timestamp format specified in cqlshrc, but local timezone could not be detected.
Either install Python 'tzlocal' module for auto-detection or specify client timezone in your cqlshrc.
Connection error: ('Unable to connect to any servers', {'127.0.0.1': error(111, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")})
Finally, the free -m
command gives me
total used free shared buff/cache available
Mem: 15758 8308 950 1440 6499 5576
Swap: 4095 2135 1960
Thanks for you help!
EDIT : Here are the WARN message I got during Cassandra launch:
11:36:14.622 [main] WARN o.a.c.config.DatabaseDescriptor - Small commitlog volume detected at /var/lib/cassandra/commitlog; setting commitlog_total_space_in_mb to 2487. You can override this in cassandra.yaml
11:36:14.623 [main] WARN o.a.c.config.DatabaseDescriptor - Only 17 MB free across all data volumes. Consider adding more capacity to your cluster or removing obsolete snapshots
11:36:14.943 [main] WARN o.a.cassandra.service.StartupChecks - jemalloc shared library could not be preloaded to speed up memory allocations
11:36:14.943 [main] WARN o.a.cassandra.service.StartupChecks - JMX is not enabled to receive remote connections. Please see cassandra-env.sh for more info.
11:36:14.943 [main] WARN o.a.cassandra.service.StartupChecks - OpenJDK is not recommended. Please upgrade to the newest Oracle Java release
11:36:14.954 [main] WARN o.a.cassandra.utils.SigarLibrary - Cassandra server running in degraded mode. Is swap disabled? : false, Address space adequate? : true, nofile limit adequate? : false, nproc limit adequate? : true
Upvotes: 0
Views: 2022
Reputation: 93
As I said in a previous comment, it seems that the issue was triggered by the /var
folder reaching its limit size, because Nifi, that I used for ingesting data, generates big logs in my configuration. Therefore removing useless logs and keeping an eye on the /var
folder seems to prevent the error.
Upvotes: 1