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https://issues.apache.org/jira/browse/IGNITE-19327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17714536#comment-17714536
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Semyon Danilov commented on IGNITE-19327:
-----------------------------------------
This patch looks good to me
> Fix a bug on scheduling a new low watermark update
> --------------------------------------------------
>
> Key: IGNITE-19327
> URL: https://issues.apache.org/jira/browse/IGNITE-19327
> Project: Ignite
> Issue Type: Bug
> Reporter: Kirill Tkalenko
> Assignee: Kirill Tkalenko
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-beta2
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> I found an error in the logs, I need to fix it.
> {noformat}
> 2023-04-20 11:19:35:279 +0300
> [ERROR][%sqllogic1%low-watermark-updater-0][LowWatermark] Failed to update
> low watermark, will schedule again: HybridTimestamp [physical=1681976065287,
> logical=0]
> java.util.concurrent.CompletionException: java.lang.AssertionError: previous
> scheduled task has not finished
> at
> java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314)
> at
> java.base/java.util.concurrent.CompletableFuture.uniRunNow(CompletableFuture.java:819)
> at
> java.base/java.util.concurrent.CompletableFuture.uniRunStage(CompletableFuture.java:799)
> at
> java.base/java.util.concurrent.CompletableFuture.thenRun(CompletableFuture.java:2121)
> at
> org.apache.ignite.internal.table.distributed.LowWatermark.lambda$updateLowWatermark$10(LowWatermark.java:186)
> at
> org.apache.ignite.internal.util.IgniteUtils.inBusyLock(IgniteUtils.java:889)
> at
> org.apache.ignite.internal.table.distributed.LowWatermark.updateLowWatermark(LowWatermark.java:175)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at
> java.base/java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:264)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java)
> at
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.lang.AssertionError: previous scheduled task has not finished
> at
> org.apache.ignite.internal.table.distributed.LowWatermark.scheduleUpdateLowWatermarkBusy(LowWatermark.java:214)
> at
> org.apache.ignite.internal.table.distributed.LowWatermark.runGcAndScheduleUpdateLowWatermarkBusy(LowWatermark.java:208)
> at
> org.apache.ignite.internal.table.distributed.LowWatermark.lambda$updateLowWatermark$7(LowWatermark.java:189)
> at
> org.apache.ignite.internal.util.IgniteUtils.inBusyLock(IgniteUtils.java:889)
> at
> org.apache.ignite.internal.table.distributed.LowWatermark.lambda$updateLowWatermark$8(LowWatermark.java:186)
> at
> java.base/java.util.concurrent.CompletableFuture.uniRunNow(CompletableFuture.java:815)
> ... 12 more
> {noformat}
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