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https://issues.apache.org/jira/browse/STORM-1886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327289#comment-15327289
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ASF GitHub Bot commented on STORM-1886:
---------------------------------------
Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/1470#discussion_r66785050
--- Diff:
external/storm-redis/src/main/java/org/apache/storm/redis/state/RedisKeyValueState.java
---
@@ -203,12 +237,14 @@ public void commit() {
JedisCommands commands = null;
try {
commands = jedisContainer.getInstance();
- if (!pendingPrepare.isEmpty()) {
+ if (!pendingPrepare.isEmpty() ||
!pendingDeletePrepare.isEmpty()) {
commands.hmset(namespace, pendingPrepare);
--- End diff --
Redis may throw error if pendingPrepare is empty. you may want to confirm.
> Extend KeyValueState interface with delete method
> -------------------------------------------------
>
> Key: STORM-1886
> URL: https://issues.apache.org/jira/browse/STORM-1886
> Project: Apache Storm
> Issue Type: Improvement
> Reporter: Balazs Kossovics
>
> Even if the implementation of checkpointing only uses the get/put methods of
> the KeyValueState interface, the existance of a delete method could be really
> useful in the general case.
> I made a first implementation, what do you think about?
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