szetszwo commented on code in PR #5891:
URL: https://github.com/apache/ozone/pull/5891#discussion_r1440210343
##########
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/ratis/OzoneManagerStateMachine.java:
##########
@@ -493,15 +489,28 @@ public OzoneManagerDoubleBuffer
buildDoubleBufferForRatis() {
*/
@Override
public long takeSnapshot() throws IOException {
- LOG.info("Current Snapshot Index {}", getLastAppliedTermIndex());
- TermIndex lastTermIndex = getLastAppliedTermIndex();
- final TransactionInfo build = TransactionInfo.valueOf(lastTermIndex);
- ozoneManager.setTransactionInfo(build);
- Table<String, TransactionInfo> txnInfoTable =
- ozoneManager.getMetadataManager().getTransactionInfoTable();
- txnInfoTable.put(TRANSACTION_INFO_KEY, build);
+ try {
+ ozoneManagerDoubleBuffer.awaitFlush();
+ } catch (InterruptedException e) {
+ throw IOUtils.toInterruptedIOException("Interrupted
ozoneManagerDoubleBuffer.awaitFlush", e);
+ }
+
+ return takeSnapshotImpl();
+ }
+
+ private synchronized long takeSnapshotImpl() throws IOException {
+ final TermIndex applied = getLastAppliedTermIndex();
+ final TermIndex notified = getLastNotifiedTermIndex();
+ final TermIndex snapshot = applied.compareTo(notified) > 0 ? applied :
notified;
Review Comment:
You are right. `takeSnapshot()` should wait until the last index skipped by
`notifyTermIndexUpdated(..)`.
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