From 96c64a14b0e5758be24362b6b49eb31811d9b098 Mon Sep 17 00:00:00 2001 From: Nick Dimiduk Date: Thu, 12 Mar 2015 14:01:45 -0700 Subject: [PATCH] HBASE-13222 Provide means of non-destructive balancer inspection --- bin/get-balancer-status.rb | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100755 bin/get-balancer-status.rb diff --git a/bin/get-balancer-status.rb b/bin/get-balancer-status.rb new file mode 100755 index 0000000..7cdfa85 --- /dev/null +++ b/bin/get-balancer-status.rb @@ -0,0 +1,40 @@ +#!/usr/bin/env hbase-jruby +# +# 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. + +# Prints the current balancer status + +include Java +import org.apache.hadoop.hbase.HBaseConfiguration +import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher +import org.apache.hadoop.hbase.zookeeper.LoadBalancerTracker + +# disable debug/info logging on this script for clarity +log_level = org.apache.log4j.Level::ERROR +org.apache.log4j.Logger.getLogger('org.apache.hadoop.hbase').setLevel(log_level) +org.apache.log4j.Logger.getLogger('org.apache.zookeeper').setLevel(log_level) + +config = HBaseConfiguration.create + +zk = ZooKeeperWatcher.new(config, 'balancer-status', nil) +begin + lbt = LoadBalancerTracker.new(zk, nil) + lbt.start() + puts lbt.isBalancerOn() +ensure + zk.close() +end + -- 1.9.3 (Apple Git-50)