[jira] [Created] (CALCITE-3739) Remove failed snapshot track file in Windows OS for Cassandra adapter

["Feng Zhu (Jira)" <ji...@apache.org>]

Feng Zhu created CALCITE-3739:
---------------------------------

             Summary: Remove failed snapshot track file in Windows OS for Cassandra adapter
                 Key: CALCITE-3739
                 URL: https://issues.apache.org/jira/browse/CALCITE-3739
             Project: Calcite
          Issue Type: Bug
          Components: cassandra-adapter
            Reporter: Feng Zhu


In Windows OS, CassandraUnit leaves an extra "cassandra/.toDelete" snapshot track file.
After migrating to Gradle, it is flagged as "unapproved license" and fails on "rat" task.
It is annoying to manually delete this file every time.

The issue is also mentioned in CALCITE-2442. But I found the snapshot file still exists with the fix.
{code:java}
  @AfterClass
  public static void tearDown() {
    if (RULE instanceof CassandraCQLUnit) {
      CassandraCQLUnit rule = (CassandraCQLUnit) RULE;
      rule.getSession().close();
      rule.getCluster().close();
      // see https://issues.apache.org/jira/browse/CALCITE-2442
      // see https://issues.apache.org/jira/browse/CASSANDRA-13085
      // Is it done by cluster.close() already ?
      if (FBUtilities.isWindows) {
        WindowsFailedSnapshotTracker.deleteOldSnapshots();
      }
    }
  }
{code}

I make some profling work. It seems that the snapshot track file is locked by other threads.
"The process cannot access the file because it is being used by another process."
Any ideas?



--
This message was sent by Atlassian Jira
(v8.3.4#803005)