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  1. Flink
  2. FLINK-23095

Close the channel unspilling thread pool after restore

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      Currently we keep around the StreamTask#channelIOExecutor for the entire life cycle of the StreamTask and we keep unnecessary alive threads. We could close it right after we finish the restore of the gates.

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              dwysakowicz Dawid Wysakowicz
              dwysakowicz Dawid Wysakowicz
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