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Vinayakumar B resolved HDFS-8189. --------------------------------- Resolution: Fixed Fix Version/s: HDFS-7285 Hadoop Flags: Reviewed Committed to HDFS-7285 branch. Thanks [~umamaheswararao] for the review. > ClientProtocol#createErasureCodingZone API was wrongly annotated as Idempotent > ------------------------------------------------------------------------------ > > Key: HDFS-8189 > URL: https://issues.apache.org/jira/browse/HDFS-8189 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: namenode > Reporter: Uma Maheswara Rao G > Assignee: Vinayakumar B > Fix For: HDFS-7285 > > Attachments: HDFS-8189-01.patch > > > Currently createErasureCodingZone was annotated as Idempotent > But it should be annotated as @AtMostOnce as we handle retries via retryCache. > {code} > @Idempotent > public void createErasureCodingZone(String src, ECSchema schema) > throws IOException; > {code} > It will fail to create Zone if its already a zone. So, simply we can not > retry by ignoring previous call success. So, we were using retryCache already > for handling this situation. > {code} > if (getECSchema(srcIIP) != null) { > throw new IOException("Directory " + src + " is already in an " + > "erasure coding zone."); > } > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)