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https://issues.apache.org/jira/browse/HBASE-28884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17886560#comment-17886560
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Hudson commented on HBASE-28884:
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Results for branch branch-2.6
[build #214 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.6/214/]:
(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-2.6/214/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-2.6/214/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-2.6/214/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(x) {color:red}-1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.6/214/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-2.6/214/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{color}
> SFT's BrokenStoreFileCleaner may cause data loss
> ------------------------------------------------
>
> Key: HBASE-28884
> URL: https://issues.apache.org/jira/browse/HBASE-28884
> Project: HBase
> Issue Type: Bug
> Components: SFT
> Affects Versions: 2.6.0, 3.0.0-beta-1, 2.7.0, 2.5.10
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.7.0, 3.0.0-beta-2, 2.5.11, 2.6.2
>
>
> When having this BrokenStoreFileCleaner enabled, one of our customers has run
> into a data loss situation, probably due to a race condition between regions
> getting moved out of the regionserver while the BrokenStoreFileCleaner was
> checking this region's files eligibility for deletion. We have seen that the
> file got deleted by the given region server, around the same time the region
> got closed on this region server. I believe a race condition during region
> close is possible here:
> 1) In BrokenStoreFileCleaner, for each region online on the given RS, we get
> the list of files in the store dirs, then iterate through it [1];
> 2) For each file listed, we perform several checks, including this one [2]
> that checks if the file is "active"
> The problem is, if the region for the file we are checking got closed between
> point #1 and #2, by the time we check if the file is active in [2], the store
> may have already been closed as part of the region closure, so this check
> would consider the file as deletable.
> One simple solution is to check if the store's region is still open before
> proceeding with deleting the file.
> [1]
> https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/BrokenStoreFileCleaner.java#L99
> [2]
> https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/BrokenStoreFileCleaner.java#L133
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