frankgh opened a new pull request, #2519:
URL: https://github.com/apache/cassandra/pull/2519
This commit skips the initialization of `topPartitions` in
`org.apache.cassandra.db.ColumnFamilyStore` when running in client or tool
mode. The `TopPartitionTracker` class will attempt to query the system
keyspace, which when running in client or tool mode will not be part of the
KeyspaceMetadata. This causes a warning to be printed out with a stacktrace
that can be misleading. The warning is similar to this:
```
WARN org.apache.cassandra.db.SystemKeyspace: Could not load stored top SIZES
partitions for ...
org.apache.cassandra.db.KeyspaceNotDefinedException: keyspace system does
not exist
at org.apache.cassandra.schema.Schema.validateTable(Schema.java:xxx)
~[?:?]
at
org.apache.cassandra.cql3.statements.SelectStatement$RawStatement.prepare(SelectStatement.java:xxx)
~[?:?]
at
org.apache.cassandra.cql3.statements.SelectStatement$RawStatement.prepare(SelectStatement.java:xxx)
~[?:?]
at
org.apache.cassandra.cql3.statements.SelectStatement$RawStatement.prepare(SelectStatement.java:xxx)
~[?:?]
at
org.apache.cassandra.cql3.QueryProcessor.parseAndPrepare(QueryProcessor.java:xxx)
~[?:?]
...
```
In this commit, we check whether we run in client or tool mode, and skip
initialization of `topPartitions` in those cases.
Thanks for sending a pull request! Here are some tips if you're new here:
[CASSANDRA-18697](https://issues.apache.org/jira/browse/CASSANDRA-18697)
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