[ https://issues.apache.org/jira/browse/HIVE-20202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Prasanth Jayachandran updated HIVE-20202: ----------------------------------------- Attachment: HIVE-20202.3.patch > Add profiler endpoint to HS2 and LLAP > ------------------------------------- > > Key: HIVE-20202 > URL: https://issues.apache.org/jira/browse/HIVE-20202 > Project: Hive > Issue Type: New Feature > Affects Versions: 4.0.0, 3.2.0 > Reporter: Prasanth Jayachandran > Assignee: Prasanth Jayachandran > Priority: Major > Attachments: HIVE-20202.1.patch, HIVE-20202.2.patch, > HIVE-20202.3.patch > > > Add a web endpoint for profiling based on async-profiler. This servlet should > be added to httpserver so that HS2 and LLAP daemons can output flamegraphs > when their /prof endpoint is hit. Since this will be based on > [https://github.com/jvm-profiling-tools/async-profiler] heap allocation, lock > contentions, HW counters etc. will also be supported in addition to cpu > profiling. In most cases the profiling overhead is pretty low and is safe to > run on production. More analysis on CPU and memory overhead here > [https://github.com/jvm-profiling-tools/async-profiler/issues/14] and > [https://github.com/jvm-profiling-tools/async-profiler/issues/131] > > For the impatient, here is the usage doc and the sample output > [https://github.com/prasanthj/nightswatch/blob/master/README.md] -- This message was sent by Atlassian JIRA (v7.6.3#76005)