banmoy edited a comment on issue #8611: [FLINK-12693][state] Store state per key-group in CopyOnWriteStateTable URL: https://github.com/apache/flink/pull/8611#issuecomment-508971057 The failed CI reported by flinkbot includes two failures: 1. `KeyedComplexChainTest.testMigrationAndRestore ` is a known unstable case, and is being solved by [FLINK-12916](https://issues.apache.org/jira/browse/FLINK-12916?jql=text%20~%20%22testMigrationAndRestore%22). Detail error log is as follows: `17:34:30.933 [ERROR] testMigrationAndRestore[Migrate Savepoint: 1.4](org.apache.flink.test.state.operator.restore.keyed.KeyedComplexChainTest) Time elapsed: 1.091 s <<< ERROR! java.util.concurrent.ExecutionException: java.util.concurrent.CompletionException: org.apache.flink.runtime.checkpoint.CheckpointException: Task received cancellation from one of its inputs Caused by: java.util.concurrent.CompletionException: org.apache.flink.runtime.checkpoint.CheckpointException: Task received cancellation from one of its inputs Caused by: org.apache.flink.runtime.checkpoint.CheckpointException: Task received cancellation from one of its inputs Caused by: org.apache.flink.runtime.checkpoint.CheckpointException: Task received cancellation from one of its inputs ` 2. `SplitAggregateITCase.testMinMaxWithRetraction` failed on rocksdb, which is unrelated to this PR. [FLINK-13153](https://issues.apache.org/jira/browse/FLINK-13153) has been opened for this failure. Detail error log is as follows: `17:37:42.984 [ERROR] testMinMaxWithRetraction[PartialAgg=ON, LocalGlobal=ON, StateBackend=ROCKSDB](org.apache.flink.table.runtime.stream.sql.SplitAggregateITCase) Time elapsed: 2.81 s <<< FAILURE! java.lang.AssertionError: expected:<List(2,2,2,1, 5,1,4,2, 6,2,2,1)> but was:<List(2,1,2,1, 5,1,4,2, 6,2,2,1)> at org.apache.flink.table.runtime.stream.sql.SplitAggregateITCase.testMinMaxWithRetraction(SplitAggregateITCase.scala:195)` @StefanRRichter What do you think?
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