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Hudson commented on HBASE-20665: -------------------------------- Results for branch branch-2.0 [build #400 on builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/400/]: (x) *{color:red}-1 overall{color}* ---- details (if available): (/) {color:green}+1 general checks{color} -- For more information [see general report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/400//General_Nightly_Build_Report/] (x) {color:red}-1 jdk8 hadoop2 checks{color} -- For more information [see jdk8 (hadoop2) report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/400//JDK8_Nightly_Build_Report_(Hadoop2)/] (/) {color:green}+1 jdk8 hadoop3 checks{color} -- For more information [see jdk8 (hadoop3) report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/400//JDK8_Nightly_Build_Report_(Hadoop3)/] (/) {color:green}+1 source release artifact{color} -- See build output for details. > "Already cached block XXX" message should be DEBUG > -------------------------------------------------- > > Key: HBASE-20665 > URL: https://issues.apache.org/jira/browse/HBASE-20665 > Project: HBase > Issue Type: Task > Components: BlockCache > Affects Versions: 1.2.0, 2.0.0 > Reporter: Sean Busbey > Assignee: Eric Maynard > Priority: Minor > Labels: beginner > Fix For: 3.0.0, 2.1.0, 1.2.7, 1.3.3, 2.0.1 > > Attachments: HBASE-20665.master.001.patch, > HBASE-20665.master.001.patch > > > Testing a local cluster that relies on the LruBlockCache for a scan-heavy > workload and I'm getting a bunch of log entries at WARN > {code} > 2018-05-30 12:28:47,192 WARN org.apache.hadoop.hbase.io.hfile.LruBlockCache: > Cached an already cached block: df01f5bf6a244f6bb1a626b927377fff_54780812 > cb:df01f5bf6a244f6bb1a626b927377fff_54780812. This is harmless and can happen > in rare cases (see HBASE-8547) > {code} > As the log message notes (and the code confirms) this is a harmless result of > contention for getting a block into the CHM. the message should be at DEBUG. -- This message was sent by Atlassian JIRA (v7.6.3#76005)