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HDFS-11275. Check groupEntryIndex and throw a helpful exception on failures when removing ACL.

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This commit is contained in:
Xiao Chen 2016-12-29 10:36:50 -08:00
parent a4f66655ec
commit e769957556
1 changed files with 5 additions and 1 deletions
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6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAclOp.java
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@ -17,6 +17,7 @@
*/
package org.apache.hadoop.hdfs.server.namenode;
import com.google.common.base.Preconditions;
import org.apache.hadoop.fs.permission.AclEntry;
import org.apache.hadoop.fs.permission.AclEntryScope;
import org.apache.hadoop.fs.permission.AclEntryType;
@ -221,7 +222,10 @@ private static void unprotectedRemoveAcl(FSDirectory fsd, INodesInPath iip)
int groupEntryIndex = Collections.binarySearch(
featureEntries, groupEntryKey,
AclTransformation.ACL_ENTRY_COMPARATOR);
assert groupEntryIndex >= 0;
Preconditions.checkPositionIndex(groupEntryIndex, featureEntries.size(),
"Invalid group entry index after binary-searching inode: " +
inode.getFullPathName() + "(" + inode.getId() + ") "
+ "with featureEntries:" + featureEntries);
FsAction groupPerm = featureEntries.get(groupEntryIndex).getPermission();
FsPermission newPerm = new FsPermission(perm.getUserAction(), groupPerm,
perm.getOtherAction(), perm.getStickyBit());