[Bug-fix][Broker-load] Fix the bug of the label already exists when the txn has been finished #1992
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EmmyMiao87
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imay
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Oct 16, 2019
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| @Override | ||
| protected void executeReplayOnVisible(TransactionState txnState) { | ||
| protected void executeReplayTxnAttachment(TransactionState txnState) { |
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| protected void executeReplayTxnAttachment(TransactionState txnState) { | |
| protected void replayTxnAttachment(TransactionState txnState) { |
| map.put(loadJob.getLabel(), jobs); | ||
| } | ||
| jobs.add(loadJob); | ||
| if (!loadJob.isCompleted()) { |
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I think you should use another way to achieve this. When this function is called, Catalog is not ready. However you start to use Catalog's item, this is error-prone.
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The callback need to be add in here. The reason is that the replay of txn maybe use the callback and reload the job state.
imay
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Oct 16, 2019
| map.put(loadJob.getLabel(), jobs); | ||
| } | ||
| jobs.add(loadJob); | ||
| if (!loadJob.isCompleted()) { |
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I think you should use another way to achieve this. When this function is called, Catalog is not ready. However you start to use Catalog's item, this is error-prone.
morningman
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Oct 16, 2019
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Some other questions:
isCommittingandisCancellablevariable in LoadJob.java is confusing. Add some comments.
And it seems thatisCancellableis useless.
| } | ||
| jobs.add(loadJob); | ||
| if (!loadJob.isCompleted()) { | ||
| Catalog.getCurrentGlobalTransactionMgr().getCallbackFactory().addCallback(loadJob); |
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This should be done in prepareJobs();
| writeLock(); | ||
| try { | ||
| executeReplayOnVisible(txnState); | ||
| executeReplayTxnAttachment(txnState); |
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I think the name executeReplayTxnAttachment should be changed.
Or calling a "replay" method in "non-replay" method is weird
…he txn has been finished If FE is restarted between txn committed and visible, the load job will be rescheduled and failed with label already exists. The reason is that there are inconsistency between transaction of load job and meta of load job. So, the replay of the txn attachment need to be done in function replayOnCommitted. The load job state and progress is correct after that.
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wuyunfeng
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Oct 22, 2019
…he txn has been finished (apache#1992) If FE is restarted between txn committed and visible, the load job will be rescheduled and failed with label already exists. The reason is that there are inconsistency between transaction of load job and meta of load job. So, the replay of the txn attachment need to be done in function replayOnCommitted. The load job state and progress is correct after that.
morningman
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Dec 10, 2019
…he txn has been finished (apache#1992) If FE is restarted between txn committed and visible, the load job will be rescheduled and failed with label already exists. The reason is that there are inconsistency between transaction of load job and meta of load job. So, the replay of the txn attachment need to be done in function replayOnCommitted. The load job state and progress is correct after that.
swjtu-zhanglei
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Jul 25, 2023
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If FE is restarted between txn committed and visible, the load job will be rescheduled and failed with label already exists.
The reason is that there are inconsistency between transaction of load job and meta of load job.
So, the replay of the txn attachment need to be done in function replayOnCommitted.
The load job state and progress is correct after that.