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Sebastian Toader updated AMBARI-15011: -------------------------------------- Attachment: (was: AMBARI-15011-branch-2.2.v1.patch) > Decrease the load on ambari database after cluster creation > ----------------------------------------------------------- > > Key: AMBARI-15011 > URL: https://issues.apache.org/jira/browse/AMBARI-15011 > Project: Ambari > Issue Type: Improvement > Components: ambari-server > Reporter: Sebastian Toader > Assignee: Sebastian Toader > Priority: Critical > Fix For: 2.2.2 > > Attachments: AMBARI-15011-branch-2.2.v2.patch, > AMBARI-15011-trunk.v2.patch > > > Decrease the load generated by queries that are periodically executed after > cluster creation. > Queries executed frequently: > {code} > SELECT t0.service_config_id, t0.cluster_id, t0.create_timestamp, t0.group_id, > t0.note, t0.service_name, t0.user_name, t0.version, t0.stack_id FROM > serviceconfig t0 WHERE ((t0.cluster_id = @P0) AND (t0.create_timestamp = > (SELECT MAX(t1.create_timestamp) FROM serviceconfig t1 WHERE > (((t1.service_name = t0.service_name) AND (t1.cluster_id = @P1)) AND > (t1.group_id IS NULL))))) > {code} > {code} > SELECT MAX(t0.skippable), MIN(t1.start_time), MAX(t1.end_time), t1.stage_id, > SUM(CASE WHEN (t1.status = @P0) THEN @P1 ELSE @P2 END), SUM(CASE WHEN > (t1.status = @P3) THEN @P4 ELSE @P5 END), SUM(CASE WHEN (t1.status = @P6) > THEN @P7 ELSE @P8 END), SUM(CASE WHEN (t1.status = @P9) THEN @P10 ELSE @P11 > END), SUM(CASE WHEN (t1.status = @P12) THEN @P13 ELSE @P14 END), SUM(CASE > WHEN (t1.status = @P15) THEN @P16 ELSE @P17 END), SUM(CASE WHEN (t1.status = > @P18) THEN @P19 ELSE @P20 END), SUM(CASE WHEN (t1.status = @P21) THEN @P22 > ELSE @P23 END), SUM(CASE WHEN (t1.status = @P24) THEN @P25 ELSE @P26 END), > SUM(CASE WHEN (t1.status = @P27) THEN @P28 ELSE @P29 END), SUM(CASE WHEN > (t1.status = @P30) THEN @P31 ELSE @P32 END) FROM stage t0, host_role_command > t1 WHERE ((t0.stage_id = t1.stage_id) AND (t0.request_id = t1.request_id)) > GROUP BY t1.request_id, t1.stage_id HAVING (t1.request_id = @P33) > {code} > {code} > SELECT DISTINCT t0.task_id FROM host_role_command t0, hosts t1 WHERE > ((((t1.host_name = @P0) AND (t0.role = @P1)) AND (t0.status = @P2)) AND > (t1.host_id = t0.host_id)) ORDER BY t0.task_id > {code} > {code} > SELECT DISTINCT task_id FROM host_role_command WHERE ((role = @P0) AND > (status = @P1)) ORDER BY task_id > {code} > {code} > SELECT COUNT(task_id) FROM host_role_command WHERE (status IN > (@P0,@P1,@P2,@P3,@P4,@P5)) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)