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