AmatyaAvadhanula commented on code in PR #16393:
URL: https://github.com/apache/druid/pull/16393#discussion_r1591881224
##########
indexing-service/src/main/java/org/apache/druid/indexing/overlord/TaskLockbox.java:
##########
@@ -1271,6 +1277,113 @@ public void remove(final Task task)
}
}
+ /**
+ * Acquire a read lock to perform the segment transactional append action
for a given datasource.
+ * Also verifies that all the locks are of the type APPEND for the task.
+ * @param task task to perform the append action
+ * @param lockAcquireTimeoutMillis milliseconds to wait for lock acquisition
+ */
+ public void acquireTransactionalAppendLock(Task task, long
lockAcquireTimeoutMillis)
+ {
+ for (TaskLockPosse lockPosse : findLockPossesForTask(task)) {
+ if (lockPosse.taskLock.getType() != TaskLockType.APPEND) {
+ throw new ISE(
+ "All the locks must be of type APPEND for
segmentTransactionalAppend. Found lock of type[%s] for task[%s].",
+ lockPosse.taskLock.getType(), task.getId()
+ );
+ }
+ }
+
+ final String datasource = task.getDataSource();
+ final ReentrantReadWriteLock readWriteLock =
+ datasourceToConcurrentLock.computeIfAbsent(datasource, ds -> new
ReentrantReadWriteLock(true));
+
+ synchronized (readWriteLock) {
+ try {
+ final boolean acquired = readWriteLock.readLock()
+
.tryLock(lockAcquireTimeoutMillis, TimeUnit.MILLISECONDS);
+ if (!acquired) {
+ throw new ISE("Timed out while acquiring transactional append lock
for datasource[%s].", datasource);
+ }
+ }
+ catch (InterruptedException e) {
+ throw new ISE(e, "Interrupted while acquiring transactional append
lock for datasource[%s].", datasource);
+ }
+ }
+ }
+
+ /**
+ * Acquire a write lock to perform the segment transactional replace action
for a given datasource.
+ * Also verifies that all the locks are of the type REPLACE for the task.
+ * @param task task to perform the replace action
+ * @param lockAcquireTimeoutMillis milliseconds to wait for lock acquisition
+ */
+ public void acquireTransactionalReplaceLock(Task task, long
lockAcquireTimeoutMillis)
+ {
+ for (TaskLockPosse lockPosse : findLockPossesForTask(task)) {
+ if (lockPosse.taskLock.getType() != TaskLockType.REPLACE) {
+ throw new ISE(
+ "All the locks must be of type REPLACE for
segmentTransactionalReplace. Found lock of type[%s] for task[%s].",
+ lockPosse.taskLock.getType(), task.getId()
+ );
+ }
+ }
Review Comment:
Done
##########
indexing-service/src/main/java/org/apache/druid/indexing/overlord/TaskLockbox.java:
##########
@@ -1271,6 +1277,113 @@ public void remove(final Task task)
}
}
+ /**
+ * Acquire a read lock to perform the segment transactional append action
for a given datasource.
+ * Also verifies that all the locks are of the type APPEND for the task.
+ * @param task task to perform the append action
+ * @param lockAcquireTimeoutMillis milliseconds to wait for lock acquisition
+ */
+ public void acquireTransactionalAppendLock(Task task, long
lockAcquireTimeoutMillis)
+ {
+ for (TaskLockPosse lockPosse : findLockPossesForTask(task)) {
+ if (lockPosse.taskLock.getType() != TaskLockType.APPEND) {
+ throw new ISE(
+ "All the locks must be of type APPEND for
segmentTransactionalAppend. Found lock of type[%s] for task[%s].",
+ lockPosse.taskLock.getType(), task.getId()
+ );
+ }
+ }
Review Comment:
Done
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