[mysql] Snapshot split the chunks asynchronously (ververica#915) #931
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| executor.submit( | ||
| () -> { | ||
| while (remainingTables.size() > 0) { | ||
| TableId nextTable = remainingTables.pollFirst(); |
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How we make sure the table splits generation has finished if failover happened ?
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Thank you for your comments. I have revised the code again.
fuyun2024
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Thanks @fuyun2024 for the contribution, could you also add some unit tests to cover the change?
| @@ -180,27 +191,60 @@ private void captureNewlyAddedTables() { | |||
| } | |||
| } | |||
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| private void asynchronouslySplitIfNeed() { | |||
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| private void asynchronouslySplitIfNeed() { | |
| private void startaAsynchronouslySplit() { |
| if (!remainingTables.isEmpty()) { | ||
| if (executor == null) { | ||
| ThreadFactory threadFactory = | ||
| new ThreadFactoryBuilder().setNameFormat("snapshot-split").build(); |
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| new ThreadFactoryBuilder().setNameFormat("snapshot-split").build(); | |
| new ThreadFactoryBuilder().setNameFormat("snapshot-splitting").build(); |
| } | ||
| return getNext(); | ||
| } else { | ||
| return Optional.empty(); |
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Could we release the executor resource after splitting finished ?
| } catch (InterruptedException e) { | ||
| e.printStackTrace(); | ||
| } |
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please throw FlinkRuntimeException with a detail error message.
| return getNext(); | ||
| } else { | ||
| return Optional.empty(); | ||
| } else if (!remainingTables.isEmpty()) { |
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There's a race condition that remainingTables is empty but the asynchronous thread just added the snapshot splits of last table to remainingSplits, and then the last table will be missed.
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