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https://issues.apache.org/jira/browse/HDFS-5913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Li updated HDFS-5913:
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Component/s: nfs
> Nfs3Utils#getWccAttr() should check attr parameter against null
> ---------------------------------------------------------------
>
> Key: HDFS-5913
> URL: https://issues.apache.org/jira/browse/HDFS-5913
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: nfs
> Reporter: Ted Yu
> Priority: Minor
>
> In RpcProgramNfs3#commit() :
> {code}
> Nfs3FileAttributes postOpAttr = null;
> try {
> postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
> } catch (IOException e1) {
> LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId());
> }
> WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr),
> postOpAttr);
> {code}
> If there is exception, postOpAttr would be null.
> However, Nfs3Utils#getWccAttr() dereferences attr parameter directly.
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