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https://issues.apache.org/jira/browse/HBASE-29021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17908121#comment-17908121
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Hudson commented on HBASE-29021:
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Results for branch branch-3
[build #357 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-3/357/]:
(x) *{color:red}-1 overall{color}*
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details (if available):
(x) {color:red}-1 general checks{color}
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report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-3/357/General_20Nightly_20Build_20Report/]
(x) {color:red}-1 jdk17 hadoop3 checks{color}
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(x) {color:red}-1 jdk17 hadoop ${HADOOP_THREE_VERSION} backward compatibility
checks{color}
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report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-3/357/JDK17_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(x) {color:red}-1 jdk17 hadoop ${HADOOP_THREE_VERSION} backward compatibility
checks{color}
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report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-3/357/JDK17_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(x) {color:red}-1 jdk17 hadoop ${HADOOP_THREE_VERSION} backward compatibility
checks{color}
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report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-3/357/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 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}
> When StoreFileTracker is FILE, unable to recognize StoreFileListFile after
> upgrade from 2.5 to 2.6
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-29021
> URL: https://issues.apache.org/jira/browse/HBASE-29021
> Project: HBase
> Issue Type: Bug
> Components: HFile, regionserver
> Affects Versions: 2.6.1, 2.5.10
> Reporter: Ke Han
> Assignee: Jaehui Lee
> Priority: Critical
> Labels: pull-request-available
> Fix For: 2.7.0, 3.0.0-beta-2, 2.6.2
>
>
> h1. Symptoms
> After upgrading from HBase 2.5.10 to HBase 2.6.1, I observed an inconsistent
> read across versions.
> Before the upgrade, I created a table with one row. Invoking a count command
> returns 1. After upgrading to 2.6.1, execute the same count command, it
> returns 0.
> {code:java}
> count 'test'
> Old Version Result:
> 1 row(s)
> Took 0.5582 seconds
> => 1
> New Version Result:
> 0 row(s)
> Took 1.4439 seconds
> => 0 {code}
> h1. Reproduce
> It can be reproduced deterministically with the following steps
> Step1: Start up the HBase cluster in 2.5.10 and execute the following commands
> {code:java}
> create 'test', 'cf', CONFIGURATION => {'hbase.store.file-tracker.impl' =>
> 'FILE'}
> put 'test', 'row', 'cf:q', 'value'{code}
> Step2: Execute the count command in the old version
> {code:java}
> count 'test'
> 1 row(s)
> Took 0.5582 seconds
> => 1 {code}
> Step3: Stop the entire cluster, upgrade to 2.6.1 and execute the same count
> command
> {code:java}
> count 'test'
> 0 row(s)
> Took 0.0842 seconds
> => 0{code}
> h1. Analysis
> The names of {{StoreFileListFile}} differ between the two versions:
> * In 2.5.10: {{f1}} or {{f2}}
> * In 2.6.1: {{{}f1.{timestamp{}}}} or {{{}f2.{timestamp{}}}}
> The addition of a timestamp to the file name was introduced in HBASE-26791.
> It can be resolved by handling missing timestamps by setting them to 0.
> However, in the case of downgrading versions, the above approach does not
> work. A workaround is available:
> * Change the storefile tracker implementation from {{FILE}} > {{MIGRATION >
> DEFAULT}} before downgrading.
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