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Posted to hdfs-issues@hadoop.apache.org by "Shuyan Zhang (Jira)" <ji...@apache.org> on 2023/09/14 06:43:00 UTC

[jira] [Created] (HDFS-17190) EC: Fix bug for OIV processing XAttr.

Shuyan Zhang created HDFS-17190:
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             Summary: EC: Fix bug for OIV processing XAttr.
                 Key: HDFS-17190
                 URL: https://issues.apache.org/jira/browse/HDFS-17190
             Project: Hadoop HDFS
          Issue Type: Bug
         Environment: When we need to use OIV to print EC information for a directory, `PBImageTextWriter#getErasureCodingPolicyName` will be called. Currently, this method uses `XATTR_ERASURECODING_POLICY.contains(xattr.getName())` to filter and obtain EC XAttr, which is very dangerous. If we have an XAttr whose name happens to be a substring of `hdfs.erasurecoding.policy`, then `getErasureCodingPolicyName` will return the wrong result. Our internal production environment has customized some XAttrs, and this bug caused errors in the parsing results of OIV when using `-ec` option. 
            Reporter: Shuyan Zhang






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