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https://issues.apache.org/jira/browse/IGNITE-17036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vyacheslav Koptilin reassigned IGNITE-17036:
--------------------------------------------
Assignee: Alexander Lapin
> RaftException: ESTATEMACHINE:null when change replicas from 3 to 2 for a table
> ------------------------------------------------------------------------------
>
> Key: IGNITE-17036
> URL: https://issues.apache.org/jira/browse/IGNITE-17036
> Project: Ignite
> Issue Type: Bug
> Reporter: Mirza Aliev
> Assignee: Alexander Lapin
> Priority: Major
> Labels: ignite-3
>
> Reproducer on a feature branch ignite-14209 :
> {code:java}
> void testOneRebalance(@WorkDirectory Path workDir, TestInfo testInfo) throws
> Exception {
> TableDefinition schTbl1 = SchemaBuilders.tableBuilder("PUBLIC",
> "tbl1").columns(
> SchemaBuilders.column("key", ColumnType.INT64).build(),
> SchemaBuilders.column("val",
> ColumnType.INT32).asNullable(true).build()
> ).withPrimaryKey("key").build();
> nodes.get(0).tableManager.createTable(
> "PUBLIC.tbl1",
> tblChanger -> SchemaConfigurationConverter.convert(schTbl1,
> tblChanger)
> .changeReplicas(1)
> .changePartitions(1));
> assertEquals(1,
> nodes.get(0).clusterCfgMgr.configurationRegistry().getConfiguration(TablesConfiguration.KEY)
> .tables().get("PUBLIC.TBL1").replicas().value());
> nodes.get(0).tableManager.alterTable("PUBLIC.TBL1", ch ->
> ch.changeReplicas(3));
> waitPartitionAssignmentsSyncedToExpected(0, 3);
> nodes.get(0).tableManager.alterTable("PUBLIC.TBL1", ch ->
> ch.changeReplicas(2));
> waitPartitionAssignmentsSyncedToExpected(0, 2);
> assertEquals(3, getAssignments(0, 0).size());
> assertEquals(3, getAssignments(1, 0).size());
> assertEquals(3, getAssignments(2, 0).size());
> }
> {code}
> This code hangs with
> {noformat}
> 2022-05-26 12:14:00:871 +0300 [ERROR][Thread-89][MetaStorageServiceImpl]
> Unexpected exception
> java.util.concurrent.CompletionException: class
> org.apache.ignite.raft.jraft.rpc.impl.RaftException: ESTATEMACHINE:null
> at
> java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:331)
> at
> java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:346)
> at
> java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:632)
> at
> java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506)
> at
> java.base/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2088)
> at
> org.apache.ignite.raft.jraft.rpc.impl.RaftGroupServiceImpl$1.accept(RaftGroupServiceImpl.java:617)
> at
> org.apache.ignite.raft.jraft.rpc.impl.RaftGroupServiceImpl$1.accept(RaftGroupServiceImpl.java:556)
> at
> java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859)
> at
> java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837)
> at
> java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:479)
> at
> java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
> at
> java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
> at
> java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
> at
> java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
> at
> java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
> Caused by: class org.apache.ignite.raft.jraft.rpc.impl.RaftException:
> ESTATEMACHINE:null
> at
> org.apache.ignite.raft.jraft.rpc.impl.RaftGroupServiceImpl$1.accept(RaftGroupServiceImpl.java:618)
> ... 9 more
> {noformat}
> Root cause is the bug in {{{}SimpleInMemoryKeyValueStorage{}}}, method
> {{SimpleInMemoryKeyValueStorage#doGetValue}} throws NPE when tries to get
> revision on the line {{if (lastVal.tombstone())}} because {{Value lastVal =
> lastRevVals.get(key)}} is null.
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