HDFS-7634. Disallow truncation of Lazy persist files. (Contributed by Yi Liu)
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@ -491,6 +491,9 @@ Release 2.7.0 - UNRELEASED
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HDFS-7638: Small fix and few refinements for FSN#truncate. (yliu)
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HDFS-7634. Disallow truncation of Lazy persist files. (Yi Liu via
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Arpit Agarwal)
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Release 2.6.1 - UNRELEASED
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INCOMPATIBLE CHANGES
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@ -2006,6 +2006,14 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
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dir.checkPathAccess(pc, iip, FsAction.WRITE);
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}
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INodeFile file = INodeFile.valueOf(iip.getLastINode(), src);
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final BlockStoragePolicy lpPolicy =
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blockManager.getStoragePolicy("LAZY_PERSIST");
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if (lpPolicy != null &&
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lpPolicy.getId() == file.getStoragePolicyID()) {
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throw new UnsupportedOperationException(
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"Cannot truncate lazy persist file " + src);
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}
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// Opening an existing file for write. May need lease recovery.
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recoverLeaseInternal(iip, src, clientName, clientMachine, false);
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// Truncate length check.
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