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_r260976980
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File path:
samza-core/src/main/scala/org/apache/samza/storage/ContainerStorageManager.java
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@@ -407,14 +789,33 @@ 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())
+ );
+
+ // stop reading sideInputs
+ this.shutDownSideInputRead = true;
+
+ // stop all sideinput consumers and stores
+ if (sideInputSystemConsumers != null) {
Review comment:
Can we simplify these nulls checks and instead have one state that denotes
if side inputs are present or absent? I noticed in some places you check if the
`sideInputConsumers` are non-empty and some of them checks for null and some
use `sideInputSystemStreams` is non-empty.
Lets just have one place and one logic to determine the presence of side
inputs and if its present then the invariant of some of the variables being
non-null should hold since you create empty maps or collection for the most
part.
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