szetszwo commented on code in PR #5811:
URL: https://github.com/apache/ozone/pull/5811#discussion_r1435666532
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hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/ratis/OzoneManagerStateMachine.java:
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@@ -489,19 +489,24 @@ public OzoneManagerDoubleBuffer
buildDoubleBufferForRatis() {
*/
@Override
public long takeSnapshot() throws IOException {
- LOG.info("Current Snapshot Index {}", getLastAppliedTermIndex());
+ try {
+ awaitDoubleBufferFlush();
+ } catch (InterruptedException e) {
+ LOG.warn("double buffer wait is interrupted, ", e);
+ throw IOUtils.toInterruptedIOException("takeSnapshot is interrupted", e);
+ }
+ ozoneManager.getMetadataManager().getStore().flushDB();
+ TransactionInfo transactionInfo = ozoneManager.getMetadataManager()
+ .getTransactionInfoTable().get(TRANSACTION_INFO_KEY);
TermIndex lastTermIndex = getLastAppliedTermIndex();
- long lastAppliedIndex = lastTermIndex.getIndex();
+ LOG.info("Current Transaction Index {} lastAppliedTermIndex {}",
+ transactionInfo, lastTermIndex);
+ // update with lastAppliedTermIndex as snapshot have dependency with
+ // ratis commit index as triggered during notifyTermIndexUpdated after
+ // apply transaction. Can not use TRANSACTION_INFO_KEY from db
snapshotInfo.updateTermIndex(lastTermIndex.getTerm(),
Review Comment:
Let's don't make the logic more complicated. The direction is to remove
both `applyTransactionMap` and `ratisTransactionMap` from the code.
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