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HBASE-16939 ExportSnapshot: set owner and permission on right directory 

Signed-off-by: Matteo Bertozzi <matteo.bertozzi@cloudera.com>
This commit is contained in:
Guanghao Zhang 2016-10-25 10:36:55 +08:00 committed by Matteo Bertozzi
parent 36aa416856
commit c4be87d050
1 changed files with 25 additions and 6 deletions
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31
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/ExportSnapshot.java
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@ -939,6 +939,19 @@ public class ExportSnapshot extends Configured implements Tool {
Path outputSnapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(targetName, outputRoot);
Path initialOutputSnapshotDir = skipTmp ? outputSnapshotDir : snapshotTmpDir;
// Find the necessary directory which need to change owner and group
Path needSetOwnerDir = SnapshotDescriptionUtils.getSnapshotRootDir(outputRoot);
if (outputFs.exists(needSetOwnerDir)) {
if (skipTmp) {
needSetOwnerDir = outputSnapshotDir;
} else {
needSetOwnerDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(outputRoot);
if (outputFs.exists(needSetOwnerDir)) {
needSetOwnerDir = snapshotTmpDir;
}
}
}
// Check if the snapshot already exists
if (outputFs.exists(outputSnapshotDir)) {
if (overwrite) {
@ -976,15 +989,21 @@ public class ExportSnapshot extends Configured implements Tool {
try {
LOG.info("Copy Snapshot Manifest");
FileUtil.copy(inputFs, snapshotDir, outputFs, initialOutputSnapshotDir, false, false, conf);
if (filesUser != null || filesGroup != null) {
setOwner(outputFs, snapshotTmpDir, filesUser, filesGroup, true);
}
if (filesMode > 0) {
setPermission(outputFs, snapshotTmpDir, (short)filesMode, true);
}
} catch (IOException e) {
throw new ExportSnapshotException("Failed to copy the snapshot directory: from=" +
snapshotDir + " to=" + initialOutputSnapshotDir, e);
} finally {
if (filesUser != null || filesGroup != null) {
LOG.warn((filesUser == null ? "" : "Change the owner of " + needSetOwnerDir + " to "
+ filesUser)
+ (filesGroup == null ? "" : ", Change the group of " + needSetOwnerDir + " to "
+ filesGroup));
setOwner(outputFs, needSetOwnerDir, filesUser, filesGroup, true);
}
if (filesMode > 0) {
LOG.warn("Change the permission of " + needSetOwnerDir + " to " + filesMode);
setPermission(outputFs, needSetOwnerDir, (short)filesMode, true);
}
}
// Write a new .snapshotinfo if the target name is different from the source name