[jira] [Created] (CASSANDRA-13000) slow query log analysis tool

["Jon Haddad (JIRA)" <ji...@apache.org>]

Jon Haddad created CASSANDRA-13000:
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             Summary: slow query log analysis tool
                 Key: CASSANDRA-13000
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13000
             Project: Cassandra
          Issue Type: New Feature
            Reporter: Jon Haddad


As a follow up to CASSANDRA-12403, it would be very helpful to have a tool to process the slow queries that are logged.  In the MySQL world, there's a tool called mysqldumpslow, which processes a slow query log, abstracts the parameters to prepared statements, and shows the queries which are causing problems based on frequency.  The {{mysqldumpslow}} utillity shows an aggregated count & time statistics spent on slow queries.  For instance:

{code}shell> mysqldumpslow

Reading mysql slow query log from /usr/local/mysql/data/mysqld51-apple-slow.log
Count: 1  Time=4.32s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
 insert into t2 select * from t1

Count: 3  Time=2.53s (7s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
 insert into t2 select * from t1 limit N

Count: 3  Time=2.13s (6s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
 insert into t1 select * from t1{code}



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