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https://issues.apache.org/jira/browse/HBASE-28976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17899975#comment-17899975
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Hudson commented on HBASE-28976:
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Results for branch branch-2
[build #1192 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/]:
(x) *{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK8_20Nightly_20Build_20Report_20_28Hadoop2_29/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk17 hadoop3 checks{color}
-- For more information [see jdk17
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK17_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk17 hadoop ${HADOOP_THREE_VERSION} backward compatibility
checks{color}
-- For more information [see jdk17
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK17_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk17 hadoop ${HADOOP_THREE_VERSION} backward compatibility
checks{color}
-- For more information [see jdk17
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK17_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk17 hadoop ${HADOOP_THREE_VERSION} backward compatibility
checks{color}
-- For more information [see jdk17
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1192/JDK17_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test for HBase 2 {color}
(/) {color:green}+1 client integration test for 3.3.5 {color}
(/) {color:green}+1 client integration test for 3.3.6 {color}
(/) {color:green}+1 client integration test for 3.4.0 {color}
(/) {color:green}+1 client integration test for 3.4.1 {color}
> Fix UT flakeyness in TestBucketCache.testBlockAdditionWaitWhenCache and
> TestVerifyBucketCacheFile.testRetrieveFromFile
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-28976
> URL: https://issues.apache.org/jira/browse/HBASE-28976
> Project: HBase
> Issue Type: Bug
> Affects Versions: 3.0.0-beta-1, 2.7.0, 2.6.1, 2.5.10
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.0.0, 2.7.0, 2.6.2
>
>
> Noticed these two tests failing intermittently on some of the pre-commit
> runs.
> 1) TestBucketCache.testBlockAdditionWaitWhenCache: The test calls
> BucketCache.cacheBlock() passing true to the waitWhenCache parameter,
> assuming the cache call will wait for a success cache, however this is only
> true if the BucketCache.QUEUE_ADDITION_WAIT_TIME property is also defined, so
> I believe this may be causing the intermittent failures when the pre-commit
> runs on slower vms.
>
> 2) TestVerifyBucketCacheFile.testRetrieveFromFile: One of the checks
> performed by this test is to delete the bucket cache file, shutdown the
> current BucketCache instance, then create a new BucketCache instance that
> would load the persistent file but should fail to recover the cache, as the
> cache file has been deleted. The way this recover works, internally, is
> async. We first read the contents of the persistent file, which includes the
> last serialized backingMap and a checksum of the cache file at that time. It
> then compares this recovered checksum against the current cache file
> checksum. If this verification fails, it starts a background thread to
> traverse all backingMap entries and check if those entries are still
> available in the cache. At this point, the test is ready to check the
> BucketCache allocator size, expecting it to be 0, but if the background
> verification has not finished yet, this assert will fail.
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