swamirishi commented on code in PR #9150:
URL: https://github.com/apache/ozone/pull/9150#discussion_r2492183436
##########
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/snapshot/OmSnapshotLocalDataManager.java:
##########
@@ -730,47 +841,76 @@ public synchronized void commit() throws IOException {
// Need to update the disk state if and only if the dirty bit is set.
if (isDirty()) {
String filePath = getSnapshotLocalPropertyYamlPath(super.snapshotId);
- String tmpFilePath = filePath + ".tmp";
- File tmpFile = new File(tmpFilePath);
- boolean tmpFileExists = tmpFile.exists();
- if (tmpFileExists) {
- tmpFileExists = !tmpFile.delete();
- }
- if (tmpFileExists) {
- throw new IOException("Unable to delete tmp file " + tmpFilePath);
+ File snapshotLocalDataFile = new File(filePath);
+ if (!localDataVersionNodes.getSnapshotVersions().isEmpty()) {
+ String tmpFilePath = filePath + ".tmp";
+ File tmpFile = new File(tmpFilePath);
+ boolean tmpFileExists = tmpFile.exists();
+ if (tmpFileExists) {
+ tmpFileExists = !tmpFile.delete();
+ }
+ if (tmpFileExists) {
+ throw new IOException("Unable to delete tmp file " + tmpFilePath);
+ }
+ snapshotLocalDataSerializer.save(new File(tmpFilePath),
super.snapshotLocalData);
+ Files.move(tmpFile.toPath(), Paths.get(filePath),
StandardCopyOption.ATOMIC_MOVE,
+ StandardCopyOption.REPLACE_EXISTING);
+ } else if (snapshotLocalDataFile.exists()) {
+ LOG.info("Deleting YAML file corresponding to snapshotId: {} in path
: {}",
+ super.snapshotId, snapshotLocalDataFile.getAbsolutePath());
+ if (!snapshotLocalDataFile.delete()) {
+ throw new IOException("Unable to delete file " +
snapshotLocalDataFile.getAbsolutePath());
+ }
}
- snapshotLocalDataSerializer.save(new File(tmpFilePath),
super.snapshotLocalData);
- Files.move(tmpFile.toPath(), Paths.get(filePath),
StandardCopyOption.ATOMIC_MOVE,
- StandardCopyOption.REPLACE_EXISTING);
- upsertNode(super.snapshotId, localDataVersionNodes);
+ upsertNode(super.snapshotId, localDataVersionNodes,
getSnapshotLocalData().getTransactionInfo() != null);
// Reset dirty bit
resetDirty();
}
}
- private void upsertNode(UUID snapshotId, SnapshotVersionsMeta
snapshotVersions) throws IOException {
+ private void upsertNode(UUID snapshotId, SnapshotVersionsMeta
snapshotVersions,
+ boolean transactionInfoSet) throws IOException {
internalLock.writeLock().lock();
try {
SnapshotVersionsMeta existingSnapVersions =
getVersionNodeMap().remove(snapshotId);
Map<Integer, LocalDataVersionNode> existingVersions =
existingSnapVersions == null ? Collections.emptyMap() :
existingSnapVersions.getSnapshotVersions();
+ Map<Integer, LocalDataVersionNode> newVersions =
snapshotVersions.getSnapshotVersions();
Map<Integer, List<LocalDataVersionNode>> predecessors = new
HashMap<>();
+ boolean versionsRemoved = false;
// Track all predecessors of the existing versions and remove the node
from the graph.
for (Map.Entry<Integer, LocalDataVersionNode> existingVersion :
existingVersions.entrySet()) {
LocalDataVersionNode existingVersionNode =
existingVersion.getValue();
// Create a copy of predecessors since the list of nodes returned
would be a mutable set and it changes as the
// nodes in the graph would change.
predecessors.put(existingVersion.getKey(), new
ArrayList<>(localDataGraph.predecessors(existingVersionNode)));
+ versionsRemoved = versionsRemoved ||
!newVersions.containsKey(existingVersion.getKey());
localDataGraph.removeNode(existingVersionNode);
}
+
// Add the nodes to be added in the graph and map.
addSnapshotVersionMeta(snapshotId, snapshotVersions);
// Reconnect all the predecessors for existing nodes.
- for (Map.Entry<Integer, LocalDataVersionNode> entry :
snapshotVersions.getSnapshotVersions().entrySet()) {
+ for (Map.Entry<Integer, LocalDataVersionNode> entry :
newVersions.entrySet()) {
for (LocalDataVersionNode predecessor :
predecessors.getOrDefault(entry.getKey(), Collections.emptyList())) {
localDataGraph.putEdge(predecessor, entry.getValue());
}
}
+ if (existingSnapVersions != null) {
Review Comment:
yeah sure makes sense let me work on this
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
