mynameborat commented on a change in pull request #912: SEP-19 : Refactoring
sideInputs from SamzaContainer to ContainerStorageManager
URL: https://github.com/apache/samza/pull/912#discussion_r258171369
##########
File path:
samza-core/src/main/scala/org/apache/samza/storage/ContainerStorageManager.java
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@@ -406,14 +725,24 @@ public void stopStores() {
}
public void shutdown() {
- this.taskRestoreManagers.forEach((taskInstance, taskRestoreManager) -> {
- if (taskRestoreManager != null) {
- LOG.debug("Shutting down task storage manager for taskName: {} ",
taskInstance);
- taskRestoreManager.stop();
- } else {
- LOG.debug("Skipping task storage manager shutdown for taskName: {}",
taskInstance);
- }
- });
+ // stop all nonsideinputstores including persistent and non-persistent
stores
+ this.containerModel.getTasks().forEach((taskName, taskModel) ->
+ getNonSideInputStores(taskName).forEach((storeName, store) ->
store.stop())
+ );
+
+ // cancel all future sideInput flushes, and shutdown the executor
+ if (sideInputsFlushFuture != null) {
+ sideInputsFlushFuture.cancel(false);
+ }
+ sideInputsFlushExecutor.shutdown();
+ this.shutDownSideInputRead = true;
+
+ // stop all sideinput consumers and stores
+ if (sideInputSystemConsumers != null) {
+ this.sideInputSystemConsumers.stop();
+ }
+
this.sideInputStorageManagers.values().stream().collect(Collectors.toSet()).
+ forEach(sideInputStorageManager -> sideInputStorageManager.stop());
Review comment:
You'd need to wait for `sideInputsFlushExcecutor` shutdown to complete
before invoking a stop on the sideInputStorageManager to prevent any concurrent
modification of the offset file / flushing a closed store.
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