swamirishi commented on code in PR #6171:
URL: https://github.com/apache/ozone/pull/6171#discussion_r1480430031
##########
hadoop-hdds/rocksdb-checkpoint-differ/src/main/java/org/apache/ozone/rocksdiff/RocksDBCheckpointDiffer.java:
##########
@@ -587,7 +587,7 @@ void addToCompactionLogTable(CompactionLogEntry
compactionLogEntry) {
* Check if there is any in_progress tarball creation request and wait till
* all tarball creation finish, and it gets notified.
*/
- private void waitForTarballCreation() {
+ private synchronized void waitForTarballCreation() {
Review Comment:
How would this change help in anyway? I don't think rocksdb will do multiple
compaction in parallel. onCompactionCompleted method will commit the compaction.
##########
hadoop-hdds/rocksdb-checkpoint-differ/src/main/java/org/apache/ozone/rocksdiff/RocksDBCheckpointDiffer.java:
##########
@@ -587,7 +587,7 @@ void addToCompactionLogTable(CompactionLogEntry
compactionLogEntry) {
* Check if there is any in_progress tarball creation request and wait till
* all tarball creation finish, and it gets notified.
*/
- private void waitForTarballCreation() {
+ private synchronized void waitForTarballCreation() {
Review Comment:
waitForTarballCreation wouldn't really ensure the count would be zero after
the method call. There could be a race condition here.
##########
hadoop-hdds/rocksdb-checkpoint-differ/src/main/java/org/apache/ozone/rocksdiff/RocksDBCheckpointDiffer.java:
##########
@@ -587,7 +587,7 @@ void addToCompactionLogTable(CompactionLogEntry
compactionLogEntry) {
* Check if there is any in_progress tarball creation request and wait till
* all tarball creation finish, and it gets notified.
*/
- private void waitForTarballCreation() {
+ private synchronized void waitForTarballCreation() {
Review Comment:
I believe we would need a lock on the tarballRequestCount when incrementing
and decrementing request and add the compaction log entry within the lock.
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