Logging of slow queries #111
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For troubleshooting, it is possible to log queries that takes more than a certain amount of time with: cassandra-journal.log-slow-query = true cassandra-journal.slow-query-time = 2s Then if one of the journal query takes more than 2 seconds it will be logged at the DEBUG level to the "com.datastax.driver.core.QueryLogger.SLOW" slf4j logger.
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@masterzen thanks for the PR, looks good to me except for the failing tests. Can you please take a look? Cheers, |
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It was on my Todo list, I was just waiting to see if there would be an interest in the feature. Also, it doesn't seem to fail as much on my laptop, so I need to figure out what is the problem :) |
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Great, thanks. Would you mind extending the README to document your contribution? |
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@masterzen looks like a nice feature. What is the status? |
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@masterzen can you update about the status of this ? looks a very promising feature. |
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This code is working in production on our systems, but I lack the time to properly finish this PR. I hope to have a bit more time next week, in which case I'll amend those commits with a working test (I assume the test are failing as a side effect of enabling logging, so I need to separate the slow log test on his own class). |
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when completing this, please open PR at https://github.com/akka/akka-persistence-cassandra, which is the new home for akka-persistence-cassandra |
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Thanks @patriknw , I'll do that as soon as I can find some time to finish the work. |
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thanks, it's a nice feature |
* Both Scala and Java API * It's a merge of previous CassandraSession in this project and the additional functionality that Lagom's CassandraSession provided. Lagom will use this one (delegate to it). * make ListenableFutureConverter public
…triknw Include public API for CassandraSession, krasserm#111
For troubleshooting, it is possible to log queries that takes more
than a certain amount of time with:
Then if one of the journal or snapshot query takes more than 2 seconds it will be
logged at the DEBUG level to the "com.datastax.driver.core.QueryLogger.SLOW"
slf4j logger.