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https://issues.apache.org/jira/browse/IGNITE-21000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17795226#comment-17795226
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Alexander Lapin commented on IGNITE-21000:
------------------------------------------

Proposed solution is inorrect. Seem that we have serious issue in jraft itself, 
so I've asked the jraft guys https://github.com/sofastack/sofa-jraft/issues/1049

> ItDistributedConfigurationStorageTest#testRestartWithPds may fail
> -----------------------------------------------------------------
>
>                 Key: IGNITE-21000
>                 URL: https://issues.apache.org/jira/browse/IGNITE-21000
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Alexander Lapin
>            Assignee: Alexander Lapin
>            Priority: Blocker
>              Labels: ignite-3
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> {code:java}
> java.lang.AssertionError: 
> Expected: is <{foo=bar}>
>      but: was <{}>java.lang.AssertionError:Expected: is <{foo=bar}>     but: 
> was <{}>  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)  at 
> org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:6)  at 
> org.apache.ignite.internal.configuration.storage.ItDistributedConfigurationStorageTest.testRestartWithPds(ItDistributedConfigurationStorageTest.java:256)
>   at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method) {code}
> [https://ci.ignite.apache.org/buildConfiguration/ApacheIgnite3xGradle_Test_RunAllTests/7665195?expandCode+Inspection=true&expandBuildProblemsSection=true&hideProblemsFromDependencies=false&expandBuildTestsSection=true&hideTestsFromDependencies=false]
>  
> The reason of the failure is possible read/write commands reordering on raft 
> node restart. GetCurrentRevisionCommand (extends ReadCommand) handling checks 
> whether raft index matches storage one and if it does - evaluates the read.
> After IGNITE-20425 raft log application is done asynchronously, meaning that 
> if GetCurrentRevisionCommand will touch the leader after election but prior 
> to log replay it will see 0 both in raft and storage indexes instead of 1 and 
> (0 or 1) respectively. In order to fix this it's possible to add 
> lastCommittedIndex initialization:
> {code:java}
> public boolean resetPendingIndex(final long newPendingIndex) {
>         ...
>         this.lastCommittedIndex = newPendingIndex - 1;
>         ...
> }{code}
> Given solution was disccused previoulsy, see 
> [https://github.com/apache/ignite-3/pull/960/files#diff-f3783b069060b4e1616ce9675b7a120ebf9797b4439ff6bae43376af62df0200]
>  for more details.



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