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https://issues.apache.org/jira/browse/HDFS-15780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17267445#comment-17267445
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Ayush Saxena commented on HDFS-15780:
-------------------------------------
Test failures seems due to OOM, shouldn't be related but would be good to get a
clean build to be sure.
otherwise changes LGTM +1
> RBF: Delete unnecessary var in stateStoreService
> -------------------------------------------------
>
> Key: HDFS-15780
> URL: https://issues.apache.org/jira/browse/HDFS-15780
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: wangzhaohui
> Assignee: wangzhaohui
> Priority: Trivial
> Attachments: HDFS-15780.patch
>
>
> {code:java}
> public void refreshCaches(boolean force) {
> boolean success = true;
> if (isDriverReady()) {
> List<StateStoreCache> cachesToUpdate = new LinkedList<>();
> cachesToUpdate.addAll(cachesToUpdateInternal);
> cachesToUpdate.addAll(cachesToUpdateExternal);
> for (StateStoreCache cachedStore : cachesToUpdate) {
> String cacheName = cachedStore.getClass().getSimpleName();
> boolean result = false;
> try {
> result = cachedStore.loadCache(force);
> } catch (IOException e) {
> LOG.error("Error updating cache for {}", cacheName, e);
> result = false;
> }
> if (!result) {
> success = false;
> LOG.error("Cache update failed for cache {}", cacheName);
> }
> }
> } else {
> success = false;
> LOG.info("Skipping State Store cache update, driver is not ready.");
> }
> if (success) {
> // Uses local time, not driver time.
> this.cacheLastUpdateTime = Time.now();
> }
> }
> {code}
> The "success" may be unnecessary，we can use "result" instead of it, this can
> reduce the use of unnecessary variables.
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