Hello,

any ideas regarding below, cause it happened again on a different node.

Thanks
Thomas

From: Steinmaurer, Thomas <thomas.steinmau...@dynatrace.com>
Sent: Dienstag, 05. Februar 2019 23:03
To: user@cassandra.apache.org
Subject: Cassandra 2.1.18 - NPE during startup

Hello,

at a particular customer location, we are seeing the following NPE during 
startup with Cassandra 2.1.18.

INFO  [SSTableBatchOpen:2] 2019-02-03 13:32:56,131 SSTableReader.java:475 - 
Opening 
/var/opt/data/cassandra/system/schema_keyspaces-b0f2235744583cdb9631c43e59ce3676/system-schema_keyspaces-ka-130
 (256 bytes)
ERROR [main] 2019-02-03 13:32:56,552 CassandraDaemon.java:583 - Exception 
encountered during startup
org.apache.cassandra.io.FSReadError: java.lang.NullPointerException
                at 
org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:672)
 ~[apache-cassandra-2.1.18.jar:2.1.18]
                at 
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:310) 
[apache-cassandra-2.1.18.jar:2.1.18]
                at 
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:566) 
[apache-cassandra-2.1.18.jar:2.1.18]
                at 
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:655) 
[apache-cassandra-2.1.18.jar:2.1.18]
Caused by: java.lang.NullPointerException: null
                at 
org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:664)
 ~[apache-cassandra-2.1.18.jar:2.1.18]
                ... 3 common frames omitted

I found 
https://issues.apache.org/jira/browse/CASSANDRA-10501<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fissues.apache.org%2Fjira%2Fbrowse%2FCASSANDRA-10501&data=02%7C01%7Cthomas.steinmaurer%40dynatrace.com%7C796c92ba8c4d4c94937208d68bb69f1d%7C70ebe3a35b30435d9d677716d74ca190%7C1%7C0%7C636850013806426682&sdata=5Fx4An63c5R%2Faa2%2BfFXFCg7%2FDejG1V57st7UNtq9hrA%3D&reserved=0>,
 but this should be fixed in 2.1.18.

Is the above log stating that it is caused by a system keyspace related SSTable?

This is a 3 node setup with 2 others running fine. If system table related and 
as LocalStrategy is used as replication strategy (to my knowledge), perhaps 
simply copying over data for the schema_keyspaces table from another node might 
fix it?

Any help appreciated.

Thanks.
Thomas
The contents of this e-mail are intended for the named addressee only. It 
contains information that may be confidential. Unless you are the named 
addressee or an authorized designee, you may not copy or use it, or disclose it 
to anyone else. If you received it in error please notify us immediately and 
then destroy it. Dynatrace Austria GmbH (registration number FN 91482h) is a 
company registered in Linz whose registered office is at 4040 Linz, Austria, 
Freistädterstraße 313
The contents of this e-mail are intended for the named addressee only. It 
contains information that may be confidential. Unless you are the named 
addressee or an authorized designee, you may not copy or use it, or disclose it 
to anyone else. If you received it in error please notify us immediately and 
then destroy it. Dynatrace Austria GmbH (registration number FN 91482h) is a 
company registered in Linz whose registered office is at 4040 Linz, Austria, 
Freistädterstraße 313

Reply via email to