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[fix](fe) fix several blocking bugs #37756 (#37758)
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morningman authored Jul 14, 2024
1 parent a5f45d3 commit 0bcc177
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Showing 2 changed files with 11 additions and 3 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -2364,7 +2364,6 @@ public int hashCode() {
int result = super.hashCode();
result = 31 * result + Objects.hashCode(opcode);
result = 31 * result + Objects.hashCode(fnName);
result = 31 * result + Objects.hashCode(fnParams);
return result;
}

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Original file line number Diff line number Diff line change
Expand Up @@ -66,11 +66,20 @@ public void forward(long catalogId, long dbId) throws Exception {
boolean isReturnToPool = false;
try {
TInitExternalCtlMetaResult result = client.initExternalCtlMeta(request);
Env.getCurrentEnv().getJournalObservable().waitOn(result.maxJournalId, waitTimeoutMs);
if (!result.getStatus().equalsIgnoreCase(STATUS_OK)) {
throw new UserException(result.getStatus());
} else {
// DO NOT wait on journal replayed, this may cause deadlock.
// 1. hold table read lock
// 2. wait on journal replayed
// 3. previous journal (eg, txn journal) replayed need to hold table write lock
// 4. deadlock
// But no waiting on journal replayed may cause some request on non-master FE failed for some time.
// There is no good solution for this.
// In feature version, this whole process is refactored, so we temporarily remove this waiting.
// Env.getCurrentEnv().getJournalObservable().waitOn(result.maxJournalId, timeoutMs);
isReturnToPool = true;
}
isReturnToPool = true;
} catch (Exception e) {
LOG.warn("Failed to finish forward init operation, please try again. ", e);
throw e;
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