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HBASE-11650 Write hbase.id to a temporary location and move into place

This commit is contained in:
Andrew Purtell 2014-08-01 17:18:01 -07:00
parent 4d272fa5ee
commit ec5a859b92
1 changed files with 17 additions and 4 deletions
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21
hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSUtils.java
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@ -786,15 +786,28 @@ public abstract class FSUtils {
int wait) throws IOException {
while (true) {
try {
Path filePath = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
FSDataOutputStream s = fs.create(filePath);
Path idFile = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
Path tempIdFile = new Path(rootdir, HConstants.HBASE_TEMP_DIRECTORY +
Path.SEPARATOR + HConstants.CLUSTER_ID_FILE_NAME);
// Write the id file to a temporary location
FSDataOutputStream s = fs.create(tempIdFile);
try {
s.write(clusterId.toByteArray());
} finally {
s.close();
s = null;
// Move the temporary file to its normal location. Throw an IOE if
// the rename failed
if (!fs.rename(tempIdFile, idFile)) {
throw new IOException("Unable to move temp version file to " + idFile);
}
} finally {
// Attempt to close the stream if still open on the way out
try {
if (s != null) s.close();
} catch (IOException ignore) { }
}
if (LOG.isDebugEnabled()) {
LOG.debug("Created cluster ID file at " + filePath.toString() + " with ID: " + clusterId);
LOG.debug("Created cluster ID file at " + idFile.toString() + " with ID: " + clusterId);
}
return;
} catch (IOException ioe) {