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Hello Cassandra Experts,

How can I get a list of processes in Cassandra cluster (similiar to the show processlist command of MySQL)? Im puzzled as to why I cannot find any posts anywhere about this topic.

Thanks.

user3448124
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  • Is there a particular problem you're trying to somve with this info? – Don Branson Jul 11 '14 at 11:32
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    I simple want to know what the database is doing, what types of reads, updates, loading, etc so that I can correlate this back to the apps/environment in order to troubleshoot any amiss situations. – user3448124 Jul 11 '14 at 17:25
  • Hmm. I'm thinking about what this would look like on a cluster distributed over, say, a couple hundred nodes. Millions of queries taking a few millis each, and for each query communicating information about the query to some central point so that a tool can observe it. It seems like that could significantly impact performance. – Don Branson Jul 11 '14 at 19:22
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    I have 12 nodes. Is there any way to see the processlist? This is really a simple request in all other db platforms. – user3448124 Jul 14 '14 at 14:44
  • It makes sense in other platforms. It might make sense for a distributed database, too, but the issues above make me wonder. – Don Branson Jul 14 '14 at 16:09
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    Distributed or not, DBAs/others need to know that the db is doing. – user3448124 Jul 15 '14 at 17:35
  • Okay. How would you go about implementing it for a distributed database? – Don Branson Jul 15 '14 at 21:28

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