smiklosovic commented on code in PR #4667:
URL: https://github.com/apache/cassandra/pull/4667#discussion_r2925962480
##########
src/java/org/apache/cassandra/db/compression/CompressionDictionaryScheduler.java:
##########
@@ -206,23 +240,36 @@ public void run()
logger.info("SSTable-based dictionary training
completed for {}.{}",
keyspaceName, tableName);
}
+
+ finishTraining(trainer.getTrainingState());
+ cleanup(refViewFragment, trainer);
});
}
catch (Exception e)
{
logger.error("Failed to sample from SSTables for {}.{}",
keyspaceName, tableName, e);
- cancelManualTraining();
- }
- finally
- {
- refViewFragment.close();
Review Comment:
I do not think what we did here was too smart (same concept was there before
we started to `selectAndReference`) because training is done asychronously, so
this method returns and `finally` is called _before_ the sampling is actually
finished. We should close in callback, as done above, or only in case we catch
exception, as done here.
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