[ https://issues.apache.org/jira/browse/IGNITE-6084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Ozerov updated IGNITE-6084: ------------------------------------ Labels: performance (was: ) > SQL: improve lazy execution threading model > ------------------------------------------- > > Key: IGNITE-6084 > URL: https://issues.apache.org/jira/browse/IGNITE-6084 > Project: Ignite > Issue Type: Task > Components: sql > Affects Versions: 2.1 > Reporter: Vladimir Ozerov > Labels: performance > Fix For: 2.2 > > > Currently "lazy" mode creates new thread for every query. Moreover, messages > are queued to query pool first and then re-submitted to target thread. This > makes execution of small queries inefficient. > We need to do the following: > 1) Define separate pool for lazy execution > 2) It's size should be about 4 x cores, due to blocking nature of lazy > execution > 3) Set thread timeouts > 4) Submit new query execute request to pool's shared queue from > {{GridIoManager}} directly > 5) Submit "next page" requests to directly to proper thread, using [nodeId, > queryId, segment] triplet > 6) Cancel request can be submitted to query pool and re-submitted to > appropriate threads afterwards. -- This message was sent by Atlassian JIRA (v6.4.14#64029)