ableegoldman commented on a change in pull request #9978:
URL: https://github.com/apache/kafka/pull/9978#discussion_r567013928
##########
File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/StateDirectory.java
##########
@@ -133,6 +152,72 @@ private void configurePermissions(final File file) {
}
}
+ /**
+ * @return true if the state directory was successfully locked
+ */
+ private boolean lockStateDirectory() {
+ final File lockFile = new File(stateDir, LOCK_FILE_NAME);
+ try {
+ stateDirLockChannel = FileChannel.open(lockFile.toPath(),
StandardOpenOption.CREATE, StandardOpenOption.WRITE);
+ stateDirLock = tryLock(stateDirLockChannel);
+ } catch (final IOException e) {
+ log.error("Unable to lock the state directory due to unexpected
exception", e);
+ throw new ProcessorStateException("Failed to lock the state
directory during startup", e);
+ }
+
+ return stateDirLock != null;
+ }
+
+ public UUID initializeProcessId() {
Review comment:
alright done
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