[ https://issues.apache.org/jira/browse/KUDU-3181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Serbin resolved KUDU-3181. --------------------------------- Fix Version/s: 1.13.0 Resolution: Fixed > Compilation manager queue may have too many tasks > ------------------------------------------------- > > Key: KUDU-3181 > URL: https://issues.apache.org/jira/browse/KUDU-3181 > Project: Kudu > Issue Type: Bug > Components: codegen > Reporter: Li Zhiming > Priority: Major > Fix For: 1.13.0 > > Attachments: heap.svg > > > When a client frequently scanning for thousands of diffrent columns, the > code_cache_hits rate is quite low. Then compilation task is frequently > submitted to queue, but the compiler manager thread cannot consumes the queue > quick enough. The queue could accumulate tons of entries, each of which > retains a copy of schema meta data, so a lot of memeory is consumed for a > long time. -- This message was sent by Atlassian Jira (v8.3.4#803005)