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https://issues.apache.org/jira/browse/KYLIN-4074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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nichunen resolved KYLIN-4074.
-----------------------------
Resolution: Fixed
Fix Version/s: v3.0.0-alpha2
> 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: v2.4.0, v2.5.0, v2.6.2
> Reporter: Temple Zhou
> Assignee: Temple Zhou
> Priority: Major
> Fix For: v3.0.0-alpha2
>
>
> 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:java}
> 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}
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