Temple Zhou created KYLIN-4074: ---------------------------------- Summary: Exception in thread "Memcached IO over {MemcachedConnection to ..." java.lang.NullPointerException Key: KYLIN-4074 URL: https://issues.apache.org/jira/browse/KYLIN-4074 Project: Kylin Issue Type: Bug Affects Versions: v2.6.2, v2.5.0, v2.4.0 Reporter: Temple Zhou Assignee: Temple Zhou
This exception will lead to the failure of thread "Memcached IO over {MemcachedConnection to ...}", so, the inputQueue of memcache client will be blocked, and every request will take 2000ms (timeout). The log is as follows: {code:log} 2019-07-01 15:21:24,039 INFO [Query 3f75c477-9c38-35bf-24a0-656459d9ebb1-212641] v2.CubeHBaseEndpointRPC:197 : Query-3f75c477-9c38-35bf-24a0-656459d9ebb1: no segment result is cached for segment:1102_pv_uv_users_di[20160701000000_20170101000000], take time:2000ms {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)