hadoop - HiveServer2 - Hue connections -

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we have hive running in cdh 5.4.5.

in last few months, suffer lot of "silent crashes" - queries getting stucked , workflows in oozie run slower usual till reset hs2 , runs normally.

our main thesis there many connections hs2, causing overhead , hs2 crashing.

after monitoring number of connections using netstat, saw number of connections when problem occured 250 instead of 30. in addition, saw 70% percent of connections hue's. when compared number of hue connections number of queries done, didn't see correlation (oozie workflows not identified hue connection possible activity hs2 connections hive/impala queries).

so, have question hue connections. on actions / events hue open new connection hiveserver2?

every time query window opened?

every time query launched?


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