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https://issues.apache.org/jira/browse/IGNITE-9898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16653476#comment-16653476
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Dmitriy Govorukhin commented on IGNITE-9898:
--------------------------------------------
Merge to master and ignite-2.7
> Checkpoint thread hangs on await async task completion
> ------------------------------------------------------
>
> Key: IGNITE-9898
> URL: https://issues.apache.org/jira/browse/IGNITE-9898
> Project: Ignite
> Issue Type: Bug
> Components: persistence
> Reporter: Dmitriy Govorukhin
> Assignee: Dmitriy Govorukhin
> Priority: Blocker
> Fix For: 2.7
>
>
> In some cases, we can reset (IgniteTaskTrackingThreadPoolExecutor#reset)
> counters for checkpoint thread pool during execution async task, and then we
> can get hangs on await
> {code}
> [19:36:01] : [Step 4/5] [2018-10-15 16:36:01,435][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:03] : [Step 4/5] [2018-10-15 16:36:03,435][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:05] : [Step 4/5] [2018-10-15 16:36:05,436][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:07] : [Step 4/5] [2018-10-15 16:36:07,436][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:09] : [Step 4/5] [2018-10-15 16:36:09,437][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:11] : [Step 4/5] [2018-10-15 16:36:11,437][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:13] : [Step 4/5] [2018-10-15 16:36:13,438][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:15] : [Step 4/5] [2018-10-15 16:36:15,439][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:17] : [Step 4/5] [2018-10-15 16:36:17,440][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:19] : [Step 4/5] [2018-10-15 16:36:19,441][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> [19:36:21] : [Step 4/5] [2018-10-15 16:36:21,442][INFO
> ][db-checkpoint-thread-#21691%db.IgnitePdsPageEvictionDuringPartitionClearTest0%][GridCacheDatabaseSharedManager]
> Await checkpoint pool tasks comleted, pendingTaskCnt=2, completedTaskCnt=3,
> initialized=true, err=null, activeCnt=0
> {code}
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