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https://issues.apache.org/jira/browse/HDFS-13330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabor Bota updated HDFS-13330:
------------------------------
Attachment: HDFS-13330.002.patch
> ShortCircuitCache#fetchOrCreate never retries
> ---------------------------------------------
>
> Key: HDFS-13330
> URL: https://issues.apache.org/jira/browse/HDFS-13330
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Wei-Chiu Chuang
> Assignee: Gabor Bota
> Priority: Minor
> Attachments: HDFS-13330.001.patch, HDFS-13330.002.patch
>
>
> The follow do .. while(false) loop seems useless to me. The code intended to
> retry but it never worked. Let's fix it.
> {code:java:title=ShortCircuitCache#fetchOrCreate}
> ShortCircuitReplicaInfo info = null;
> do {
> if (closed) {
> LOG.trace("{}: can't fethchOrCreate {} because the cache is closed.",
> this, key);
> return null;
> }
> Waitable<ShortCircuitReplicaInfo> waitable = replicaInfoMap.get(key);
> if (waitable != null) {
> try {
> info = fetch(key, waitable);
> } catch (RetriableException e) {
> LOG.debug("{}: retrying {}", this, e.getMessage());
> }
> }
> } while (false);{code}
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