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HBASE-12892 Add a class to allow taking a snapshot from the command line

This commit is contained in:
Elliott Clark 2015-01-21 13:49:14 -08:00 committed by Enis Soztutar
parent 34da035c5d
commit 45fdc0e835
2 changed files with 89 additions and 0 deletions
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3
bin/hbase
View File

@ -83,6 +83,7 @@ if [ $# = 0 ]; then
echo "Some commands take arguments. Pass no args or -h for usage."
echo " shell Run the HBase shell"
echo " hbck Run the hbase 'fsck' tool"
echo " snapshot Create a new snapshot of a table"
echo " wal Write-ahead-log analyzer"
echo " hfile Store file analyzer"
echo " zkcli Run the ZooKeeper shell"
@ -302,6 +303,8 @@ elif [ "$COMMAND" = "zkcli" ] ; then
CLASS="org.apache.hadoop.hbase.zookeeper.ZooKeeperMainServer"
elif [ "$COMMAND" = "upgrade" ] ; then
CLASS="org.apache.hadoop.hbase.migration.UpgradeTo96"
elif [ "$COMMAND" = "snapshot" ] ; then
CLASS="org.apache.hadoop.hbase.snapshot.CreateSnapshot"
elif [ "$COMMAND" = "master" ] ; then
CLASS='org.apache.hadoop.hbase.master.HMaster'
if [ "$1" != "stop" ] && [ "$1" != "clear" ] ; then

86
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/CreateSnapshot.java Normal file
View File

@ -0,0 +1,86 @@
/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.snapshot;
import org.apache.commons.cli.CommandLine;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos;
import org.apache.hadoop.hbase.util.AbstractHBaseTool;
import java.util.Arrays;
/**
* This is a command line class that will snapshot a given table.
*/
public class CreateSnapshot extends AbstractHBaseTool {
private String tableName = null;
private String snapshotName = null;
private String snapshotType = null;
public static void main(String[] args) {
new CreateSnapshot().doStaticMain(args);
}
@Override
protected void addOptions() {
this.addRequiredOptWithArg("t", "table", "The name of the table");
this.addRequiredOptWithArg("n", "name", "The name of the created snapshot");
this.addOptWithArg("s", "snapshot_type",
"Snapshot Type. FLUSH is default. Posible values are "
+ Arrays.toString(HBaseProtos.SnapshotDescription.Type.values()));
}
@Override
protected void processOptions(CommandLine cmd) {
this.tableName = cmd.getOptionValue('t');
this.snapshotName = cmd.getOptionValue('n');
this.snapshotType = cmd.getOptionValue('s');
}
@Override
protected int doWork() throws Exception {
Connection connection = null;
Admin admin = null;
try {
connection = ConnectionFactory.createConnection(getConf());
admin = connection.getAdmin();
HBaseProtos.SnapshotDescription.Type type = HBaseProtos.SnapshotDescription.Type.FLUSH;
if (snapshotType != null) {
type = HBaseProtos.SnapshotDescription.Type.valueOf(snapshotName.toUpperCase());
}
admin.snapshot(snapshotName, TableName.valueOf(tableName), type);
} catch (Exception e) {
return -1;
} finally {
if (admin != null) {
admin.close();
}
if (connection != null) {
connection.close();
}
}
return 0;
}
}