Nathan Jackels created CASSANDRA-13605:
------------------------------------------
Summary: threads created during classload-static sections open
commitlog handles
Key: CASSANDRA-13605
URL: https://issues.apache.org/jira/browse/CASSANDRA-13605
Project: Cassandra
Issue Type: Bug
Components: Core, Tools
Reporter: Nathan Jackels
Priority: Minor
Fix For: 3.0.x
Some classes, such as org.apache.cassandra.db.commitlog.CommitLog create
threads in static blocks. Some of these threads then open file-descriptors for
the commitlog (and possibly sstables).
{noformat}
...
public static final CommitLog instance = CommitLog.construct();
...
private static CommitLog construct()
{
CommitLog log = new CommitLog(DatabaseDescriptor.getCommitLogLocation(),
CommitLogArchiver.construct());
....
return log.start();
}
...
{noformat}
If this occurs in a non-daemon process such as nodetool, or any of the other
sstable tools it could prevent a CassandraDaemon from deleting commitlog files.
These threads should only open files automatically if the process is a
CassandraDaemon, not if it's a utility.
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