http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8e0a5167/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.SwapRegionsAction.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.SwapRegionsAction.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.SwapRegionsAction.html index 7e37ca0..79c65e3 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.SwapRegionsAction.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.SwapRegionsAction.html @@ -70,1527 +70,1525 @@ <span class="sourceLineNo">062</span>import com.google.common.collect.Sets;<a name="line.62"></a> <span class="sourceLineNo">063</span><a name="line.63"></a> <span class="sourceLineNo">064</span>/**<a name="line.64"></a> -<span class="sourceLineNo">065</span> * The base class for load balancers. It provides the the functions used to by<a name="line.65"></a> -<span class="sourceLineNo">066</span> * {@link org.apache.hadoop.hbase.master.AssignmentManager} to assign regions<a name="line.66"></a> -<span class="sourceLineNo">067</span> * in the edge cases. It doesn't provide an implementation of the<a name="line.67"></a> -<span class="sourceLineNo">068</span> * actual balancing algorithm.<a name="line.68"></a> -<span class="sourceLineNo">069</span> *<a name="line.69"></a> -<span class="sourceLineNo">070</span> */<a name="line.70"></a> -<span class="sourceLineNo">071</span>public abstract class BaseLoadBalancer implements LoadBalancer {<a name="line.71"></a> -<span class="sourceLineNo">072</span> protected static final int MIN_SERVER_BALANCE = 2;<a name="line.72"></a> -<span class="sourceLineNo">073</span> private volatile boolean stopped = false;<a name="line.73"></a> +<span class="sourceLineNo">065</span> * The base class for load balancers. It provides functions used by<a name="line.65"></a> +<span class="sourceLineNo">066</span> * {@link org.apache.hadoop.hbase.master.AssignmentManager} to assign regions in the edge cases.<a name="line.66"></a> +<span class="sourceLineNo">067</span> * It doesn't provide an implementation of the actual balancing algorithm.<a name="line.67"></a> +<span class="sourceLineNo">068</span> */<a name="line.68"></a> +<span class="sourceLineNo">069</span>public abstract class BaseLoadBalancer implements LoadBalancer {<a name="line.69"></a> +<span class="sourceLineNo">070</span> protected static final int MIN_SERVER_BALANCE = 2;<a name="line.70"></a> +<span class="sourceLineNo">071</span> private volatile boolean stopped = false;<a name="line.71"></a> +<span class="sourceLineNo">072</span><a name="line.72"></a> +<span class="sourceLineNo">073</span> private static final List<HRegionInfo> EMPTY_REGION_LIST = new ArrayList<>(0);<a name="line.73"></a> <span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> private static final List<HRegionInfo> EMPTY_REGION_LIST = new ArrayList<>(0);<a name="line.75"></a> -<span class="sourceLineNo">076</span><a name="line.76"></a> -<span class="sourceLineNo">077</span> static final Predicate<ServerLoad> IDLE_SERVER_PREDICATOR<a name="line.77"></a> -<span class="sourceLineNo">078</span> = load -> load.getNumberOfRegions() == 0;<a name="line.78"></a> +<span class="sourceLineNo">075</span> static final Predicate<ServerLoad> IDLE_SERVER_PREDICATOR<a name="line.75"></a> +<span class="sourceLineNo">076</span> = load -> load.getNumberOfRegions() == 0;<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> protected final RegionLocationFinder regionFinder = new RegionLocationFinder();<a name="line.78"></a> <span class="sourceLineNo">079</span><a name="line.79"></a> -<span class="sourceLineNo">080</span> protected final RegionLocationFinder regionFinder = new RegionLocationFinder();<a name="line.80"></a> -<span class="sourceLineNo">081</span><a name="line.81"></a> -<span class="sourceLineNo">082</span> private static class DefaultRackManager extends RackManager {<a name="line.82"></a> -<span class="sourceLineNo">083</span> @Override<a name="line.83"></a> -<span class="sourceLineNo">084</span> public String getRack(ServerName server) {<a name="line.84"></a> -<span class="sourceLineNo">085</span> return UNKNOWN_RACK;<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span> }<a name="line.87"></a> -<span class="sourceLineNo">088</span><a name="line.88"></a> -<span class="sourceLineNo">089</span> /**<a name="line.89"></a> -<span class="sourceLineNo">090</span> * The constructor that uses the basic MetricsBalancer<a name="line.90"></a> -<span class="sourceLineNo">091</span> */<a name="line.91"></a> -<span class="sourceLineNo">092</span> protected BaseLoadBalancer() {<a name="line.92"></a> -<span class="sourceLineNo">093</span> metricsBalancer = new MetricsBalancer();<a name="line.93"></a> -<span class="sourceLineNo">094</span> }<a name="line.94"></a> -<span class="sourceLineNo">095</span><a name="line.95"></a> -<span class="sourceLineNo">096</span> /**<a name="line.96"></a> -<span class="sourceLineNo">097</span> * This Constructor accepts an instance of MetricsBalancer,<a name="line.97"></a> -<span class="sourceLineNo">098</span> * which will be used instead of creating a new one<a name="line.98"></a> -<span class="sourceLineNo">099</span> */<a name="line.99"></a> -<span class="sourceLineNo">100</span> protected BaseLoadBalancer(MetricsBalancer metricsBalancer) {<a name="line.100"></a> -<span class="sourceLineNo">101</span> this.metricsBalancer = (metricsBalancer != null) ? metricsBalancer : new MetricsBalancer();<a name="line.101"></a> -<span class="sourceLineNo">102</span> }<a name="line.102"></a> -<span class="sourceLineNo">103</span><a name="line.103"></a> -<span class="sourceLineNo">104</span> /**<a name="line.104"></a> -<span class="sourceLineNo">105</span> * An efficient array based implementation similar to ClusterState for keeping<a name="line.105"></a> -<span class="sourceLineNo">106</span> * the status of the cluster in terms of region assignment and distribution.<a name="line.106"></a> -<span class="sourceLineNo">107</span> * LoadBalancers, such as StochasticLoadBalancer uses this Cluster object because of<a name="line.107"></a> -<span class="sourceLineNo">108</span> * hundreds of thousands of hashmap manipulations are very costly, which is why this<a name="line.108"></a> -<span class="sourceLineNo">109</span> * class uses mostly indexes and arrays.<a name="line.109"></a> -<span class="sourceLineNo">110</span> *<a name="line.110"></a> -<span class="sourceLineNo">111</span> * Cluster tracks a list of unassigned regions, region assignments, and the server<a name="line.111"></a> -<span class="sourceLineNo">112</span> * topology in terms of server names, hostnames and racks.<a name="line.112"></a> -<span class="sourceLineNo">113</span> */<a name="line.113"></a> -<span class="sourceLineNo">114</span> protected static class Cluster {<a name="line.114"></a> -<span class="sourceLineNo">115</span> ServerName[] servers;<a name="line.115"></a> -<span class="sourceLineNo">116</span> String[] hosts; // ServerName uniquely identifies a region server. multiple RS can run on the same host<a name="line.116"></a> -<span class="sourceLineNo">117</span> String[] racks;<a name="line.117"></a> -<span class="sourceLineNo">118</span> boolean multiServersPerHost = false; // whether or not any host has more than one server<a name="line.118"></a> -<span class="sourceLineNo">119</span><a name="line.119"></a> -<span class="sourceLineNo">120</span> ArrayList<String> tables;<a name="line.120"></a> -<span class="sourceLineNo">121</span> HRegionInfo[] regions;<a name="line.121"></a> -<span class="sourceLineNo">122</span> Deque<BalancerRegionLoad>[] regionLoads;<a name="line.122"></a> -<span class="sourceLineNo">123</span> private RegionLocationFinder regionFinder;<a name="line.123"></a> +<span class="sourceLineNo">080</span> private static class DefaultRackManager extends RackManager {<a name="line.80"></a> +<span class="sourceLineNo">081</span> @Override<a name="line.81"></a> +<span class="sourceLineNo">082</span> public String getRack(ServerName server) {<a name="line.82"></a> +<span class="sourceLineNo">083</span> return UNKNOWN_RACK;<a name="line.83"></a> +<span class="sourceLineNo">084</span> }<a name="line.84"></a> +<span class="sourceLineNo">085</span> }<a name="line.85"></a> +<span class="sourceLineNo">086</span><a name="line.86"></a> +<span class="sourceLineNo">087</span> /**<a name="line.87"></a> +<span class="sourceLineNo">088</span> * The constructor that uses the basic MetricsBalancer<a name="line.88"></a> +<span class="sourceLineNo">089</span> */<a name="line.89"></a> +<span class="sourceLineNo">090</span> protected BaseLoadBalancer() {<a name="line.90"></a> +<span class="sourceLineNo">091</span> metricsBalancer = new MetricsBalancer();<a name="line.91"></a> +<span class="sourceLineNo">092</span> }<a name="line.92"></a> +<span class="sourceLineNo">093</span><a name="line.93"></a> +<span class="sourceLineNo">094</span> /**<a name="line.94"></a> +<span class="sourceLineNo">095</span> * This Constructor accepts an instance of MetricsBalancer,<a name="line.95"></a> +<span class="sourceLineNo">096</span> * which will be used instead of creating a new one<a name="line.96"></a> +<span class="sourceLineNo">097</span> */<a name="line.97"></a> +<span class="sourceLineNo">098</span> protected BaseLoadBalancer(MetricsBalancer metricsBalancer) {<a name="line.98"></a> +<span class="sourceLineNo">099</span> this.metricsBalancer = (metricsBalancer != null) ? metricsBalancer : new MetricsBalancer();<a name="line.99"></a> +<span class="sourceLineNo">100</span> }<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> /**<a name="line.102"></a> +<span class="sourceLineNo">103</span> * An efficient array based implementation similar to ClusterState for keeping<a name="line.103"></a> +<span class="sourceLineNo">104</span> * the status of the cluster in terms of region assignment and distribution.<a name="line.104"></a> +<span class="sourceLineNo">105</span> * LoadBalancers, such as StochasticLoadBalancer uses this Cluster object because of<a name="line.105"></a> +<span class="sourceLineNo">106</span> * hundreds of thousands of hashmap manipulations are very costly, which is why this<a name="line.106"></a> +<span class="sourceLineNo">107</span> * class uses mostly indexes and arrays.<a name="line.107"></a> +<span class="sourceLineNo">108</span> *<a name="line.108"></a> +<span class="sourceLineNo">109</span> * Cluster tracks a list of unassigned regions, region assignments, and the server<a name="line.109"></a> +<span class="sourceLineNo">110</span> * topology in terms of server names, hostnames and racks.<a name="line.110"></a> +<span class="sourceLineNo">111</span> */<a name="line.111"></a> +<span class="sourceLineNo">112</span> protected static class Cluster {<a name="line.112"></a> +<span class="sourceLineNo">113</span> ServerName[] servers;<a name="line.113"></a> +<span class="sourceLineNo">114</span> String[] hosts; // ServerName uniquely identifies a region server. multiple RS can run on the same host<a name="line.114"></a> +<span class="sourceLineNo">115</span> String[] racks;<a name="line.115"></a> +<span class="sourceLineNo">116</span> boolean multiServersPerHost = false; // whether or not any host has more than one server<a name="line.116"></a> +<span class="sourceLineNo">117</span><a name="line.117"></a> +<span class="sourceLineNo">118</span> ArrayList<String> tables;<a name="line.118"></a> +<span class="sourceLineNo">119</span> HRegionInfo[] regions;<a name="line.119"></a> +<span class="sourceLineNo">120</span> Deque<BalancerRegionLoad>[] regionLoads;<a name="line.120"></a> +<span class="sourceLineNo">121</span> private RegionLocationFinder regionFinder;<a name="line.121"></a> +<span class="sourceLineNo">122</span><a name="line.122"></a> +<span class="sourceLineNo">123</span> int[][] regionLocations; //regionIndex -> list of serverIndex sorted by locality<a name="line.123"></a> <span class="sourceLineNo">124</span><a name="line.124"></a> -<span class="sourceLineNo">125</span> int[][] regionLocations; //regionIndex -> list of serverIndex sorted by locality<a name="line.125"></a> -<span class="sourceLineNo">126</span><a name="line.126"></a> -<span class="sourceLineNo">127</span> int[] serverIndexToHostIndex; //serverIndex -> host index<a name="line.127"></a> -<span class="sourceLineNo">128</span> int[] serverIndexToRackIndex; //serverIndex -> rack index<a name="line.128"></a> -<span class="sourceLineNo">129</span><a name="line.129"></a> -<span class="sourceLineNo">130</span> int[][] regionsPerServer; //serverIndex -> region list<a name="line.130"></a> -<span class="sourceLineNo">131</span> int[][] regionsPerHost; //hostIndex -> list of regions<a name="line.131"></a> -<span class="sourceLineNo">132</span> int[][] regionsPerRack; //rackIndex -> region list<a name="line.132"></a> -<span class="sourceLineNo">133</span> int[][] primariesOfRegionsPerServer; //serverIndex -> sorted list of regions by primary region index<a name="line.133"></a> -<span class="sourceLineNo">134</span> int[][] primariesOfRegionsPerHost; //hostIndex -> sorted list of regions by primary region index<a name="line.134"></a> -<span class="sourceLineNo">135</span> int[][] primariesOfRegionsPerRack; //rackIndex -> sorted list of regions by primary region index<a name="line.135"></a> -<span class="sourceLineNo">136</span><a name="line.136"></a> -<span class="sourceLineNo">137</span> int[][] serversPerHost; //hostIndex -> list of server indexes<a name="line.137"></a> -<span class="sourceLineNo">138</span> int[][] serversPerRack; //rackIndex -> list of server indexes<a name="line.138"></a> -<span class="sourceLineNo">139</span> int[] regionIndexToServerIndex; //regionIndex -> serverIndex<a name="line.139"></a> -<span class="sourceLineNo">140</span> int[] initialRegionIndexToServerIndex; //regionIndex -> serverIndex (initial cluster state)<a name="line.140"></a> -<span class="sourceLineNo">141</span> int[] regionIndexToTableIndex; //regionIndex -> tableIndex<a name="line.141"></a> -<span class="sourceLineNo">142</span> int[][] numRegionsPerServerPerTable; //serverIndex -> tableIndex -> # regions<a name="line.142"></a> -<span class="sourceLineNo">143</span> int[] numMaxRegionsPerTable; //tableIndex -> max number of regions in a single RS<a name="line.143"></a> -<span class="sourceLineNo">144</span> int[] regionIndexToPrimaryIndex; //regionIndex -> regionIndex of the primary<a name="line.144"></a> -<span class="sourceLineNo">145</span> boolean hasRegionReplicas = false; //whether there is regions with replicas<a name="line.145"></a> -<span class="sourceLineNo">146</span><a name="line.146"></a> -<span class="sourceLineNo">147</span> Integer[] serverIndicesSortedByRegionCount;<a name="line.147"></a> -<span class="sourceLineNo">148</span> Integer[] serverIndicesSortedByLocality;<a name="line.148"></a> -<span class="sourceLineNo">149</span><a name="line.149"></a> -<span class="sourceLineNo">150</span> Map<String, Integer> serversToIndex;<a name="line.150"></a> -<span class="sourceLineNo">151</span> Map<String, Integer> hostsToIndex;<a name="line.151"></a> -<span class="sourceLineNo">152</span> Map<String, Integer> racksToIndex;<a name="line.152"></a> -<span class="sourceLineNo">153</span> Map<String, Integer> tablesToIndex;<a name="line.153"></a> -<span class="sourceLineNo">154</span> Map<HRegionInfo, Integer> regionsToIndex;<a name="line.154"></a> -<span class="sourceLineNo">155</span> float[] localityPerServer;<a name="line.155"></a> -<span class="sourceLineNo">156</span><a name="line.156"></a> -<span class="sourceLineNo">157</span> int numServers;<a name="line.157"></a> -<span class="sourceLineNo">158</span> int numHosts;<a name="line.158"></a> -<span class="sourceLineNo">159</span> int numRacks;<a name="line.159"></a> -<span class="sourceLineNo">160</span> int numTables;<a name="line.160"></a> -<span class="sourceLineNo">161</span> int numRegions;<a name="line.161"></a> -<span class="sourceLineNo">162</span><a name="line.162"></a> -<span class="sourceLineNo">163</span> int numMovedRegions = 0; //num moved regions from the initial configuration<a name="line.163"></a> -<span class="sourceLineNo">164</span> Map<ServerName, List<HRegionInfo>> clusterState;<a name="line.164"></a> +<span class="sourceLineNo">125</span> int[] serverIndexToHostIndex; //serverIndex -> host index<a name="line.125"></a> +<span class="sourceLineNo">126</span> int[] serverIndexToRackIndex; //serverIndex -> rack index<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> int[][] regionsPerServer; //serverIndex -> region list<a name="line.128"></a> +<span class="sourceLineNo">129</span> int[][] regionsPerHost; //hostIndex -> list of regions<a name="line.129"></a> +<span class="sourceLineNo">130</span> int[][] regionsPerRack; //rackIndex -> region list<a name="line.130"></a> +<span class="sourceLineNo">131</span> int[][] primariesOfRegionsPerServer; //serverIndex -> sorted list of regions by primary region index<a name="line.131"></a> +<span class="sourceLineNo">132</span> int[][] primariesOfRegionsPerHost; //hostIndex -> sorted list of regions by primary region index<a name="line.132"></a> +<span class="sourceLineNo">133</span> int[][] primariesOfRegionsPerRack; //rackIndex -> sorted list of regions by primary region index<a name="line.133"></a> +<span class="sourceLineNo">134</span><a name="line.134"></a> +<span class="sourceLineNo">135</span> int[][] serversPerHost; //hostIndex -> list of server indexes<a name="line.135"></a> +<span class="sourceLineNo">136</span> int[][] serversPerRack; //rackIndex -> list of server indexes<a name="line.136"></a> +<span class="sourceLineNo">137</span> int[] regionIndexToServerIndex; //regionIndex -> serverIndex<a name="line.137"></a> +<span class="sourceLineNo">138</span> int[] initialRegionIndexToServerIndex; //regionIndex -> serverIndex (initial cluster state)<a name="line.138"></a> +<span class="sourceLineNo">139</span> int[] regionIndexToTableIndex; //regionIndex -> tableIndex<a name="line.139"></a> +<span class="sourceLineNo">140</span> int[][] numRegionsPerServerPerTable; //serverIndex -> tableIndex -> # regions<a name="line.140"></a> +<span class="sourceLineNo">141</span> int[] numMaxRegionsPerTable; //tableIndex -> max number of regions in a single RS<a name="line.141"></a> +<span class="sourceLineNo">142</span> int[] regionIndexToPrimaryIndex; //regionIndex -> regionIndex of the primary<a name="line.142"></a> +<span class="sourceLineNo">143</span> boolean hasRegionReplicas = false; //whether there is regions with replicas<a name="line.143"></a> +<span class="sourceLineNo">144</span><a name="line.144"></a> +<span class="sourceLineNo">145</span> Integer[] serverIndicesSortedByRegionCount;<a name="line.145"></a> +<span class="sourceLineNo">146</span> Integer[] serverIndicesSortedByLocality;<a name="line.146"></a> +<span class="sourceLineNo">147</span><a name="line.147"></a> +<span class="sourceLineNo">148</span> Map<String, Integer> serversToIndex;<a name="line.148"></a> +<span class="sourceLineNo">149</span> Map<String, Integer> hostsToIndex;<a name="line.149"></a> +<span class="sourceLineNo">150</span> Map<String, Integer> racksToIndex;<a name="line.150"></a> +<span class="sourceLineNo">151</span> Map<String, Integer> tablesToIndex;<a name="line.151"></a> +<span class="sourceLineNo">152</span> Map<HRegionInfo, Integer> regionsToIndex;<a name="line.152"></a> +<span class="sourceLineNo">153</span> float[] localityPerServer;<a name="line.153"></a> +<span class="sourceLineNo">154</span><a name="line.154"></a> +<span class="sourceLineNo">155</span> int numServers;<a name="line.155"></a> +<span class="sourceLineNo">156</span> int numHosts;<a name="line.156"></a> +<span class="sourceLineNo">157</span> int numRacks;<a name="line.157"></a> +<span class="sourceLineNo">158</span> int numTables;<a name="line.158"></a> +<span class="sourceLineNo">159</span> int numRegions;<a name="line.159"></a> +<span class="sourceLineNo">160</span><a name="line.160"></a> +<span class="sourceLineNo">161</span> int numMovedRegions = 0; //num moved regions from the initial configuration<a name="line.161"></a> +<span class="sourceLineNo">162</span> Map<ServerName, List<HRegionInfo>> clusterState;<a name="line.162"></a> +<span class="sourceLineNo">163</span><a name="line.163"></a> +<span class="sourceLineNo">164</span> protected final RackManager rackManager;<a name="line.164"></a> <span class="sourceLineNo">165</span><a name="line.165"></a> -<span class="sourceLineNo">166</span> protected final RackManager rackManager;<a name="line.166"></a> -<span class="sourceLineNo">167</span><a name="line.167"></a> -<span class="sourceLineNo">168</span> protected Cluster(<a name="line.168"></a> -<span class="sourceLineNo">169</span> Map<ServerName, List<HRegionInfo>> clusterState,<a name="line.169"></a> -<span class="sourceLineNo">170</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.170"></a> -<span class="sourceLineNo">171</span> RegionLocationFinder regionFinder,<a name="line.171"></a> -<span class="sourceLineNo">172</span> RackManager rackManager) {<a name="line.172"></a> -<span class="sourceLineNo">173</span> this(null, clusterState, loads, regionFinder, rackManager);<a name="line.173"></a> -<span class="sourceLineNo">174</span> }<a name="line.174"></a> -<span class="sourceLineNo">175</span><a name="line.175"></a> -<span class="sourceLineNo">176</span> @SuppressWarnings("unchecked")<a name="line.176"></a> -<span class="sourceLineNo">177</span> protected Cluster(<a name="line.177"></a> -<span class="sourceLineNo">178</span> Collection<HRegionInfo> unassignedRegions,<a name="line.178"></a> -<span class="sourceLineNo">179</span> Map<ServerName, List<HRegionInfo>> clusterState,<a name="line.179"></a> -<span class="sourceLineNo">180</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.180"></a> -<span class="sourceLineNo">181</span> RegionLocationFinder regionFinder,<a name="line.181"></a> -<span class="sourceLineNo">182</span> RackManager rackManager) {<a name="line.182"></a> -<span class="sourceLineNo">183</span><a name="line.183"></a> -<span class="sourceLineNo">184</span> if (unassignedRegions == null) {<a name="line.184"></a> -<span class="sourceLineNo">185</span> unassignedRegions = EMPTY_REGION_LIST;<a name="line.185"></a> -<span class="sourceLineNo">186</span> }<a name="line.186"></a> -<span class="sourceLineNo">187</span><a name="line.187"></a> -<span class="sourceLineNo">188</span> serversToIndex = new HashMap<>();<a name="line.188"></a> -<span class="sourceLineNo">189</span> hostsToIndex = new HashMap<>();<a name="line.189"></a> -<span class="sourceLineNo">190</span> racksToIndex = new HashMap<>();<a name="line.190"></a> -<span class="sourceLineNo">191</span> tablesToIndex = new HashMap<>();<a name="line.191"></a> -<span class="sourceLineNo">192</span><a name="line.192"></a> -<span class="sourceLineNo">193</span> //TODO: We should get the list of tables from master<a name="line.193"></a> -<span class="sourceLineNo">194</span> tables = new ArrayList<>();<a name="line.194"></a> -<span class="sourceLineNo">195</span> this.rackManager = rackManager != null ? rackManager : new DefaultRackManager();<a name="line.195"></a> +<span class="sourceLineNo">166</span> protected Cluster(<a name="line.166"></a> +<span class="sourceLineNo">167</span> Map<ServerName, List<HRegionInfo>> clusterState,<a name="line.167"></a> +<span class="sourceLineNo">168</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.168"></a> +<span class="sourceLineNo">169</span> RegionLocationFinder regionFinder,<a name="line.169"></a> +<span class="sourceLineNo">170</span> RackManager rackManager) {<a name="line.170"></a> +<span class="sourceLineNo">171</span> this(null, clusterState, loads, regionFinder, rackManager);<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span><a name="line.173"></a> +<span class="sourceLineNo">174</span> @SuppressWarnings("unchecked")<a name="line.174"></a> +<span class="sourceLineNo">175</span> protected Cluster(<a name="line.175"></a> +<span class="sourceLineNo">176</span> Collection<HRegionInfo> unassignedRegions,<a name="line.176"></a> +<span class="sourceLineNo">177</span> Map<ServerName, List<HRegionInfo>> clusterState,<a name="line.177"></a> +<span class="sourceLineNo">178</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.178"></a> +<span class="sourceLineNo">179</span> RegionLocationFinder regionFinder,<a name="line.179"></a> +<span class="sourceLineNo">180</span> RackManager rackManager) {<a name="line.180"></a> +<span class="sourceLineNo">181</span><a name="line.181"></a> +<span class="sourceLineNo">182</span> if (unassignedRegions == null) {<a name="line.182"></a> +<span class="sourceLineNo">183</span> unassignedRegions = EMPTY_REGION_LIST;<a name="line.183"></a> +<span class="sourceLineNo">184</span> }<a name="line.184"></a> +<span class="sourceLineNo">185</span><a name="line.185"></a> +<span class="sourceLineNo">186</span> serversToIndex = new HashMap<>();<a name="line.186"></a> +<span class="sourceLineNo">187</span> hostsToIndex = new HashMap<>();<a name="line.187"></a> +<span class="sourceLineNo">188</span> racksToIndex = new HashMap<>();<a name="line.188"></a> +<span class="sourceLineNo">189</span> tablesToIndex = new HashMap<>();<a name="line.189"></a> +<span class="sourceLineNo">190</span><a name="line.190"></a> +<span class="sourceLineNo">191</span> //TODO: We should get the list of tables from master<a name="line.191"></a> +<span class="sourceLineNo">192</span> tables = new ArrayList<>();<a name="line.192"></a> +<span class="sourceLineNo">193</span> this.rackManager = rackManager != null ? rackManager : new DefaultRackManager();<a name="line.193"></a> +<span class="sourceLineNo">194</span><a name="line.194"></a> +<span class="sourceLineNo">195</span> numRegions = 0;<a name="line.195"></a> <span class="sourceLineNo">196</span><a name="line.196"></a> -<span class="sourceLineNo">197</span> numRegions = 0;<a name="line.197"></a> -<span class="sourceLineNo">198</span><a name="line.198"></a> -<span class="sourceLineNo">199</span> List<List<Integer>> serversPerHostList = new ArrayList<>();<a name="line.199"></a> -<span class="sourceLineNo">200</span> List<List<Integer>> serversPerRackList = new ArrayList<>();<a name="line.200"></a> -<span class="sourceLineNo">201</span> this.clusterState = clusterState;<a name="line.201"></a> -<span class="sourceLineNo">202</span> this.regionFinder = regionFinder;<a name="line.202"></a> -<span class="sourceLineNo">203</span><a name="line.203"></a> -<span class="sourceLineNo">204</span> // Use servername and port as there can be dead servers in this list. We want everything with<a name="line.204"></a> -<span class="sourceLineNo">205</span> // a matching hostname and port to have the same index.<a name="line.205"></a> -<span class="sourceLineNo">206</span> for (ServerName sn : clusterState.keySet()) {<a name="line.206"></a> -<span class="sourceLineNo">207</span> if (serversToIndex.get(sn.getHostAndPort()) == null) {<a name="line.207"></a> -<span class="sourceLineNo">208</span> serversToIndex.put(sn.getHostAndPort(), numServers++);<a name="line.208"></a> -<span class="sourceLineNo">209</span> }<a name="line.209"></a> -<span class="sourceLineNo">210</span> if (!hostsToIndex.containsKey(sn.getHostname())) {<a name="line.210"></a> -<span class="sourceLineNo">211</span> hostsToIndex.put(sn.getHostname(), numHosts++);<a name="line.211"></a> -<span class="sourceLineNo">212</span> serversPerHostList.add(new ArrayList<>(1));<a name="line.212"></a> -<span class="sourceLineNo">213</span> }<a name="line.213"></a> -<span class="sourceLineNo">214</span><a name="line.214"></a> -<span class="sourceLineNo">215</span> int serverIndex = serversToIndex.get(sn.getHostAndPort());<a name="line.215"></a> -<span class="sourceLineNo">216</span> int hostIndex = hostsToIndex.get(sn.getHostname());<a name="line.216"></a> -<span class="sourceLineNo">217</span> serversPerHostList.get(hostIndex).add(serverIndex);<a name="line.217"></a> -<span class="sourceLineNo">218</span><a name="line.218"></a> -<span class="sourceLineNo">219</span> String rack = this.rackManager.getRack(sn);<a name="line.219"></a> -<span class="sourceLineNo">220</span> if (!racksToIndex.containsKey(rack)) {<a name="line.220"></a> -<span class="sourceLineNo">221</span> racksToIndex.put(rack, numRacks++);<a name="line.221"></a> -<span class="sourceLineNo">222</span> serversPerRackList.add(new ArrayList<>());<a name="line.222"></a> -<span class="sourceLineNo">223</span> }<a name="line.223"></a> -<span class="sourceLineNo">224</span> int rackIndex = racksToIndex.get(rack);<a name="line.224"></a> -<span class="sourceLineNo">225</span> serversPerRackList.get(rackIndex).add(serverIndex);<a name="line.225"></a> -<span class="sourceLineNo">226</span> }<a name="line.226"></a> -<span class="sourceLineNo">227</span><a name="line.227"></a> -<span class="sourceLineNo">228</span> // Count how many regions there are.<a name="line.228"></a> -<span class="sourceLineNo">229</span> for (Entry<ServerName, List<HRegionInfo>> entry : clusterState.entrySet()) {<a name="line.229"></a> -<span class="sourceLineNo">230</span> numRegions += entry.getValue().size();<a name="line.230"></a> -<span class="sourceLineNo">231</span> }<a name="line.231"></a> -<span class="sourceLineNo">232</span> numRegions += unassignedRegions.size();<a name="line.232"></a> -<span class="sourceLineNo">233</span><a name="line.233"></a> -<span class="sourceLineNo">234</span> regionsToIndex = new HashMap<>(numRegions);<a name="line.234"></a> -<span class="sourceLineNo">235</span> servers = new ServerName[numServers];<a name="line.235"></a> -<span class="sourceLineNo">236</span> serversPerHost = new int[numHosts][];<a name="line.236"></a> -<span class="sourceLineNo">237</span> serversPerRack = new int[numRacks][];<a name="line.237"></a> -<span class="sourceLineNo">238</span> regions = new HRegionInfo[numRegions];<a name="line.238"></a> -<span class="sourceLineNo">239</span> regionIndexToServerIndex = new int[numRegions];<a name="line.239"></a> -<span class="sourceLineNo">240</span> initialRegionIndexToServerIndex = new int[numRegions];<a name="line.240"></a> -<span class="sourceLineNo">241</span> regionIndexToTableIndex = new int[numRegions];<a name="line.241"></a> -<span class="sourceLineNo">242</span> regionIndexToPrimaryIndex = new int[numRegions];<a name="line.242"></a> -<span class="sourceLineNo">243</span> regionLoads = new Deque[numRegions];<a name="line.243"></a> -<span class="sourceLineNo">244</span><a name="line.244"></a> -<span class="sourceLineNo">245</span> regionLocations = new int[numRegions][];<a name="line.245"></a> -<span class="sourceLineNo">246</span> serverIndicesSortedByRegionCount = new Integer[numServers];<a name="line.246"></a> -<span class="sourceLineNo">247</span> serverIndicesSortedByLocality = new Integer[numServers];<a name="line.247"></a> -<span class="sourceLineNo">248</span> localityPerServer = new float[numServers];<a name="line.248"></a> -<span class="sourceLineNo">249</span><a name="line.249"></a> -<span class="sourceLineNo">250</span> serverIndexToHostIndex = new int[numServers];<a name="line.250"></a> -<span class="sourceLineNo">251</span> serverIndexToRackIndex = new int[numServers];<a name="line.251"></a> -<span class="sourceLineNo">252</span> regionsPerServer = new int[numServers][];<a name="line.252"></a> -<span class="sourceLineNo">253</span> regionsPerHost = new int[numHosts][];<a name="line.253"></a> -<span class="sourceLineNo">254</span> regionsPerRack = new int[numRacks][];<a name="line.254"></a> -<span class="sourceLineNo">255</span> primariesOfRegionsPerServer = new int[numServers][];<a name="line.255"></a> -<span class="sourceLineNo">256</span> primariesOfRegionsPerHost = new int[numHosts][];<a name="line.256"></a> -<span class="sourceLineNo">257</span> primariesOfRegionsPerRack = new int[numRacks][];<a name="line.257"></a> +<span class="sourceLineNo">197</span> List<List<Integer>> serversPerHostList = new ArrayList<>();<a name="line.197"></a> +<span class="sourceLineNo">198</span> List<List<Integer>> serversPerRackList = new ArrayList<>();<a name="line.198"></a> +<span class="sourceLineNo">199</span> this.clusterState = clusterState;<a name="line.199"></a> +<span class="sourceLineNo">200</span> this.regionFinder = regionFinder;<a name="line.200"></a> +<span class="sourceLineNo">201</span><a name="line.201"></a> +<span class="sourceLineNo">202</span> // Use servername and port as there can be dead servers in this list. We want everything with<a name="line.202"></a> +<span class="sourceLineNo">203</span> // a matching hostname and port to have the same index.<a name="line.203"></a> +<span class="sourceLineNo">204</span> for (ServerName sn : clusterState.keySet()) {<a name="line.204"></a> +<span class="sourceLineNo">205</span> if (serversToIndex.get(sn.getHostAndPort()) == null) {<a name="line.205"></a> +<span class="sourceLineNo">206</span> serversToIndex.put(sn.getHostAndPort(), numServers++);<a name="line.206"></a> +<span class="sourceLineNo">207</span> }<a name="line.207"></a> +<span class="sourceLineNo">208</span> if (!hostsToIndex.containsKey(sn.getHostname())) {<a name="line.208"></a> +<span class="sourceLineNo">209</span> hostsToIndex.put(sn.getHostname(), numHosts++);<a name="line.209"></a> +<span class="sourceLineNo">210</span> serversPerHostList.add(new ArrayList<>(1));<a name="line.210"></a> +<span class="sourceLineNo">211</span> }<a name="line.211"></a> +<span class="sourceLineNo">212</span><a name="line.212"></a> +<span class="sourceLineNo">213</span> int serverIndex = serversToIndex.get(sn.getHostAndPort());<a name="line.213"></a> +<span class="sourceLineNo">214</span> int hostIndex = hostsToIndex.get(sn.getHostname());<a name="line.214"></a> +<span class="sourceLineNo">215</span> serversPerHostList.get(hostIndex).add(serverIndex);<a name="line.215"></a> +<span class="sourceLineNo">216</span><a name="line.216"></a> +<span class="sourceLineNo">217</span> String rack = this.rackManager.getRack(sn);<a name="line.217"></a> +<span class="sourceLineNo">218</span> if (!racksToIndex.containsKey(rack)) {<a name="line.218"></a> +<span class="sourceLineNo">219</span> racksToIndex.put(rack, numRacks++);<a name="line.219"></a> +<span class="sourceLineNo">220</span> serversPerRackList.add(new ArrayList<>());<a name="line.220"></a> +<span class="sourceLineNo">221</span> }<a name="line.221"></a> +<span class="sourceLineNo">222</span> int rackIndex = racksToIndex.get(rack);<a name="line.222"></a> +<span class="sourceLineNo">223</span> serversPerRackList.get(rackIndex).add(serverIndex);<a name="line.223"></a> +<span class="sourceLineNo">224</span> }<a name="line.224"></a> +<span class="sourceLineNo">225</span><a name="line.225"></a> +<span class="sourceLineNo">226</span> // Count how many regions there are.<a name="line.226"></a> +<span class="sourceLineNo">227</span> for (Entry<ServerName, List<HRegionInfo>> entry : clusterState.entrySet()) {<a name="line.227"></a> +<span class="sourceLineNo">228</span> numRegions += entry.getValue().size();<a name="line.228"></a> +<span class="sourceLineNo">229</span> }<a name="line.229"></a> +<span class="sourceLineNo">230</span> numRegions += unassignedRegions.size();<a name="line.230"></a> +<span class="sourceLineNo">231</span><a name="line.231"></a> +<span class="sourceLineNo">232</span> regionsToIndex = new HashMap<>(numRegions);<a name="line.232"></a> +<span class="sourceLineNo">233</span> servers = new ServerName[numServers];<a name="line.233"></a> +<span class="sourceLineNo">234</span> serversPerHost = new int[numHosts][];<a name="line.234"></a> +<span class="sourceLineNo">235</span> serversPerRack = new int[numRacks][];<a name="line.235"></a> +<span class="sourceLineNo">236</span> regions = new HRegionInfo[numRegions];<a name="line.236"></a> +<span class="sourceLineNo">237</span> regionIndexToServerIndex = new int[numRegions];<a name="line.237"></a> +<span class="sourceLineNo">238</span> initialRegionIndexToServerIndex = new int[numRegions];<a name="line.238"></a> +<span class="sourceLineNo">239</span> regionIndexToTableIndex = new int[numRegions];<a name="line.239"></a> +<span class="sourceLineNo">240</span> regionIndexToPrimaryIndex = new int[numRegions];<a name="line.240"></a> +<span class="sourceLineNo">241</span> regionLoads = new Deque[numRegions];<a name="line.241"></a> +<span class="sourceLineNo">242</span><a name="line.242"></a> +<span class="sourceLineNo">243</span> regionLocations = new int[numRegions][];<a name="line.243"></a> +<span class="sourceLineNo">244</span> serverIndicesSortedByRegionCount = new Integer[numServers];<a name="line.244"></a> +<span class="sourceLineNo">245</span> serverIndicesSortedByLocality = new Integer[numServers];<a name="line.245"></a> +<span class="sourceLineNo">246</span> localityPerServer = new float[numServers];<a name="line.246"></a> +<span class="sourceLineNo">247</span><a name="line.247"></a> +<span class="sourceLineNo">248</span> serverIndexToHostIndex = new int[numServers];<a name="line.248"></a> +<span class="sourceLineNo">249</span> serverIndexToRackIndex = new int[numServers];<a name="line.249"></a> +<span class="sourceLineNo">250</span> regionsPerServer = new int[numServers][];<a name="line.250"></a> +<span class="sourceLineNo">251</span> regionsPerHost = new int[numHosts][];<a name="line.251"></a> +<span class="sourceLineNo">252</span> regionsPerRack = new int[numRacks][];<a name="line.252"></a> +<span class="sourceLineNo">253</span> primariesOfRegionsPerServer = new int[numServers][];<a name="line.253"></a> +<span class="sourceLineNo">254</span> primariesOfRegionsPerHost = new int[numHosts][];<a name="line.254"></a> +<span class="sourceLineNo">255</span> primariesOfRegionsPerRack = new int[numRacks][];<a name="line.255"></a> +<span class="sourceLineNo">256</span><a name="line.256"></a> +<span class="sourceLineNo">257</span> int tableIndex = 0, regionIndex = 0, regionPerServerIndex = 0;<a name="line.257"></a> <span class="sourceLineNo">258</span><a name="line.258"></a> -<span class="sourceLineNo">259</span> int tableIndex = 0, regionIndex = 0, regionPerServerIndex = 0;<a name="line.259"></a> -<span class="sourceLineNo">260</span><a name="line.260"></a> -<span class="sourceLineNo">261</span> for (Entry<ServerName, List<HRegionInfo>> entry : clusterState.entrySet()) {<a name="line.261"></a> -<span class="sourceLineNo">262</span> int serverIndex = serversToIndex.get(entry.getKey().getHostAndPort());<a name="line.262"></a> -<span class="sourceLineNo">263</span><a name="line.263"></a> -<span class="sourceLineNo">264</span> // keep the servername if this is the first server name for this hostname<a name="line.264"></a> -<span class="sourceLineNo">265</span> // or this servername has the newest startcode.<a name="line.265"></a> -<span class="sourceLineNo">266</span> if (servers[serverIndex] == null ||<a name="line.266"></a> -<span class="sourceLineNo">267</span> servers[serverIndex].getStartcode() < entry.getKey().getStartcode()) {<a name="line.267"></a> -<span class="sourceLineNo">268</span> servers[serverIndex] = entry.getKey();<a name="line.268"></a> -<span class="sourceLineNo">269</span> }<a name="line.269"></a> -<span class="sourceLineNo">270</span><a name="line.270"></a> -<span class="sourceLineNo">271</span> if (regionsPerServer[serverIndex] != null) {<a name="line.271"></a> -<span class="sourceLineNo">272</span> // there is another server with the same hostAndPort in ClusterState.<a name="line.272"></a> -<span class="sourceLineNo">273</span> // allocate the array for the total size<a name="line.273"></a> -<span class="sourceLineNo">274</span> regionsPerServer[serverIndex] = new int[entry.getValue().size() + regionsPerServer[serverIndex].length];<a name="line.274"></a> -<span class="sourceLineNo">275</span> } else {<a name="line.275"></a> -<span class="sourceLineNo">276</span> regionsPerServer[serverIndex] = new int[entry.getValue().size()];<a name="line.276"></a> -<span class="sourceLineNo">277</span> }<a name="line.277"></a> -<span class="sourceLineNo">278</span> primariesOfRegionsPerServer[serverIndex] = new int[regionsPerServer[serverIndex].length];<a name="line.278"></a> -<span class="sourceLineNo">279</span> serverIndicesSortedByRegionCount[serverIndex] = serverIndex;<a name="line.279"></a> -<span class="sourceLineNo">280</span> serverIndicesSortedByLocality[serverIndex] = serverIndex;<a name="line.280"></a> -<span class="sourceLineNo">281</span> }<a name="line.281"></a> -<span class="sourceLineNo">282</span><a name="line.282"></a> -<span class="sourceLineNo">283</span> hosts = new String[numHosts];<a name="line.283"></a> -<span class="sourceLineNo">284</span> for (Entry<String, Integer> entry : hostsToIndex.entrySet()) {<a name="line.284"></a> -<span class="sourceLineNo">285</span> hosts[entry.getValue()] = entry.getKey();<a name="line.285"></a> -<span class="sourceLineNo">286</span> }<a name="line.286"></a> -<span class="sourceLineNo">287</span> racks = new String[numRacks];<a name="line.287"></a> -<span class="sourceLineNo">288</span> for (Entry<String, Integer> entry : racksToIndex.entrySet()) {<a name="line.288"></a> -<span class="sourceLineNo">289</span> racks[entry.getValue()] = entry.getKey();<a name="line.289"></a> -<span class="sourceLineNo">290</span> }<a name="line.290"></a> -<span class="sourceLineNo">291</span><a name="line.291"></a> -<span class="sourceLineNo">292</span> for (Entry<ServerName, List<HRegionInfo>> entry : clusterState.entrySet()) {<a name="line.292"></a> -<span class="sourceLineNo">293</span> int serverIndex = serversToIndex.get(entry.getKey().getHostAndPort());<a name="line.293"></a> -<span class="sourceLineNo">294</span> regionPerServerIndex = 0;<a name="line.294"></a> -<span class="sourceLineNo">295</span><a name="line.295"></a> -<span class="sourceLineNo">296</span> int hostIndex = hostsToIndex.get(entry.getKey().getHostname());<a name="line.296"></a> -<span class="sourceLineNo">297</span> serverIndexToHostIndex[serverIndex] = hostIndex;<a name="line.297"></a> -<span class="sourceLineNo">298</span><a name="line.298"></a> -<span class="sourceLineNo">299</span> int rackIndex = racksToIndex.get(this.rackManager.getRack(entry.getKey()));<a name="line.299"></a> -<span class="sourceLineNo">300</span> serverIndexToRackIndex[serverIndex] = rackIndex;<a name="line.300"></a> -<span class="sourceLineNo">301</span><a name="line.301"></a> -<span class="sourceLineNo">302</span> for (HRegionInfo region : entry.getValue()) {<a name="line.302"></a> -<span class="sourceLineNo">303</span> registerRegion(region, regionIndex, serverIndex, loads, regionFinder);<a name="line.303"></a> -<span class="sourceLineNo">304</span> regionsPerServer[serverIndex][regionPerServerIndex++] = regionIndex;<a name="line.304"></a> -<span class="sourceLineNo">305</span> regionIndex++;<a name="line.305"></a> -<span class="sourceLineNo">306</span> }<a name="line.306"></a> -<span class="sourceLineNo">307</span> }<a name="line.307"></a> -<span class="sourceLineNo">308</span><a name="line.308"></a> -<span class="sourceLineNo">309</span> for (HRegionInfo region : unassignedRegions) {<a name="line.309"></a> -<span class="sourceLineNo">310</span> registerRegion(region, regionIndex, -1, loads, regionFinder);<a name="line.310"></a> -<span 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class="sourceLineNo">322</span> }<a name="line.322"></a> -<span class="sourceLineNo">323</span><a name="line.323"></a> -<span class="sourceLineNo">324</span> for (int i = 0; i < serversPerRackList.size(); i++) {<a name="line.324"></a> -<span class="sourceLineNo">325</span> serversPerRack[i] = new int[serversPerRackList.get(i).size()];<a name="line.325"></a> -<span class="sourceLineNo">326</span> for (int j = 0; j < serversPerRack[i].length; j++) {<a name="line.326"></a> -<span class="sourceLineNo">327</span> serversPerRack[i][j] = serversPerRackList.get(i).get(j);<a name="line.327"></a> -<span class="sourceLineNo">328</span> }<a name="line.328"></a> -<span class="sourceLineNo">329</span> }<a name="line.329"></a> -<span class="sourceLineNo">330</span><a name="line.330"></a> -<span class="sourceLineNo">331</span> numTables = tables.size();<a name="line.331"></a> -<span class="sourceLineNo">332</span> numRegionsPerServerPerTable = new int[numServers][numTables];<a name="line.332"></a> 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class="sourceLineNo">564</span> regionsPerServer[ar.server] = addRegion(regionsPerServer[ar.server], ar.region);<a name="line.564"></a> -<span class="sourceLineNo">565</span> regionMoved(ar.region, -1, ar.server);<a name="line.565"></a> -<span class="sourceLineNo">566</span> break;<a name="line.566"></a> -<span class="sourceLineNo">567</span> case MOVE_REGION:<a name="line.567"></a> -<span class="sourceLineNo">568</span> assert action instanceof MoveRegionAction: action.getClass();<a name="line.568"></a> -<span class="sourceLineNo">569</span> MoveRegionAction mra = (MoveRegionAction) action;<a name="line.569"></a> -<span class="sourceLineNo">570</span> regionsPerServer[mra.fromServer] = removeRegion(regionsPerServer[mra.fromServer], mra.region);<a name="line.570"></a> -<span class="sourceLineNo">571</span> regionsPerServer[mra.toServer] = addRegion(regionsPerServer[mra.toServer], mra.region);<a name="line.571"></a> -<span class="sourceLineNo">572</span> regionMoved(mra.region, mra.fromServer, mra.toServer);<a name="line.572"></a> -<span class="sourceLineNo">573</span> break;<a name="line.573"></a> -<span class="sourceLineNo">574</span> case SWAP_REGIONS:<a name="line.574"></a> -<span class="sourceLineNo">575</span> assert action instanceof SwapRegionsAction: action.getClass();<a name="line.575"></a> -<span class="sourceLineNo">576</span> SwapRegionsAction a = (SwapRegionsAction) action;<a name="line.576"></a> -<span class="sourceLineNo">577</span> regionsPerServer[a.fromServer] = replaceRegion(regionsPerServer[a.fromServer], a.fromRegion, a.toRegion);<a name="line.577"></a> -<span class="sourceLineNo">578</span> regionsPerServer[a.toServer] = replaceRegion(regionsPerServer[a.toServer], a.toRegion, a.fromRegion);<a name="line.578"></a> -<span class="sourceLineNo">579</span> regionMoved(a.fromRegion, a.fromServer, a.toServer);<a name="line.579"></a> -<span class="sourceLineNo">580</span> regionMoved(a.toRegion, a.toServer, a.fromServer);<a name="line.580"></a> 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serversToIndex.get(entry.getKey().getHostAndPort());<a name="line.260"></a> +<span class="sourceLineNo">261</span><a name="line.261"></a> +<span class="sourceLineNo">262</span> // keep the servername if this is the first server name for this hostname<a name="line.262"></a> +<span class="sourceLineNo">263</span> // or this servername has the newest startcode.<a name="line.263"></a> +<span class="sourceLineNo">264</span> if (servers[serverIndex] == null ||<a name="line.264"></a> +<span class="sourceLineNo">265</span> servers[serverIndex].getStartcode() < entry.getKey().getStartcode()) {<a name="line.265"></a> +<span class="sourceLineNo">266</span> servers[serverIndex] = entry.getKey();<a name="line.266"></a> +<span class="sourceLineNo">267</span> }<a name="line.267"></a> +<span class="sourceLineNo">268</span><a name="line.268"></a> +<span class="sourceLineNo">269</span> if (regionsPerServer[serverIndex] != null) {<a name="line.269"></a> +<span class="sourceLineNo">270</span> // there is 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name="line.278"></a> +<span class="sourceLineNo">279</span> }<a name="line.279"></a> +<span class="sourceLineNo">280</span><a name="line.280"></a> +<span class="sourceLineNo">281</span> hosts = new String[numHosts];<a name="line.281"></a> +<span class="sourceLineNo">282</span> for (Entry<String, Integer> entry : hostsToIndex.entrySet()) {<a name="line.282"></a> +<span class="sourceLineNo">283</span> hosts[entry.getValue()] = entry.getKey();<a name="line.283"></a> +<span class="sourceLineNo">284</span> }<a name="line.284"></a> +<span class="sourceLineNo">285</span> racks = new String[numRacks];<a name="line.285"></a> +<span class="sourceLineNo">286</span> for (Entry<String, Integer> entry : racksToIndex.entrySet()) {<a name="line.286"></a> +<span class="sourceLineNo">287</span> racks[entry.getValue()] = entry.getKey();<a name="line.287"></a> +<span class="sourceLineNo">288</span> }<a name="line.288"></a> +<span class="sourceLineNo">289</span><a name="line.289"></a> +<span class="sourceLineNo">290</span> for (Entry<ServerName, List<HRegionInfo>> entry : clusterState.entrySet()) {<a name="line.290"></a> +<span class="sourceLineNo">291</span> int serverIndex = serversToIndex.get(entry.getKey().getHostAndPort());<a name="line.291"></a> +<span class="sourceLineNo">292</span> regionPerServerIndex = 0;<a name="line.292"></a> +<span class="sourceLineNo">293</span><a name="line.293"></a> +<span class="sourceLineNo">294</span> int hostIndex = hostsToIndex.get(entry.getKey().getHostname());<a name="line.294"></a> +<span class="sourceLineNo">295</span> serverIndexToHostIndex[serverIndex] = hostIndex;<a name="line.295"></a> +<span class="sourceLineNo">296</span><a name="line.296"></a> +<span class="sourceLineNo">297</span> int rackIndex = racksToIndex.get(this.rackManager.getRack(entry.getKey()));<a name="line.297"></a> +<span class="sourceLineNo">298</span> serverIndexToRackIndex[serverIndex] = rackIndex;<a name="line.298"></a> +<span class="sourceLineNo">299</span><a name="line.299"></a> +<span class="sourceLineNo">300</span> for (HRegionInfo region : entry.getValue()) {<a name="line.300"></a> +<span class="sourceLineNo">301</span> registerRegion(region, regionIndex, serverIndex, loads, regionFinder);<a name="line.301"></a> +<span class="sourceLineNo">302</span> regionsPerServer[serverIndex][regionPerServerIndex++] = regionIndex;<a name="line.302"></a> +<span class="sourceLineNo">303</span> regionIndex++;<a name="line.303"></a> +<span class="sourceLineNo">304</span> }<a name="line.304"></a> +<span class="sourceLineNo">305</span> }<a name="line.305"></a> +<span class="sourceLineNo">306</span><a name="line.306"></a> +<span class="sourceLineNo">307</span> for (HRegionInfo region : unassignedRegions) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> registerRegion(region, regionIndex, -1, loads, regionFinder);<a name="line.308"></a> +<span class="sourceLineNo">309</span> regionIndex++;<a name="line.309"></a> +<span class="sourceLineNo">310</span> }<a name="line.310"></a> +<span class="sourceLineNo">311</span><a name="line.311"></a> +<span class="sourceLineNo">312</span> for (int i = 0; i < serversPerHostList.size(); i++) {<a name="line.312"></a> +<span class="sourceLineNo">313</span> serversPerHost[i] = new int[serversPerHostList.get(i).size()];<a name="line.313"></a> +<span class="sourceLineNo">314</span> for (int j = 0; j < serversPerHost[i].length; j++) {<a name="line.314"></a> +<span class="sourceLineNo">315</span> serversPerHost[i][j] = serversPerHostList.get(i).get(j);<a name="line.315"></a> +<span class="sourceLineNo">316</span> }<a name="line.316"></a> +<span class="sourceLineNo">317</span> if (serversPerHost[i].length > 1) {<a name="line.317"></a> +<span class="sourceLineNo">318</span> multiServersPerHost = true;<a name="line.318"></a> +<span class="sourceLineNo">319</span> }<a name="line.319"></a> +<span class="sourceLineNo">320</span> }<a name="line.320"></a> +<span class="sourceLineNo">321</span><a name="line.321"></a> +<span class="sourceLineNo">322</span> for (int i = 0; i < serversPerRackList.size(); i++) {<a name="line.322"></a> +<span class="sourceLineNo">323</span> serversPerRack[i] = new int[serversPerRackList.get(i).size()];<a name="line.323"></a> +<span class="sourceLineNo">324</span> for (int j = 0; j < serversPerRack[i].length; j++) {<a name="line.324"></a> +<span class="sourceLineNo">325</span> serversPerRack[i][j] = serversPerRackList.get(i).get(j);<a name="line.325"></a> +<span class="sourceLineNo">326</span> }<a name="line.326"></a> +<span class="sourceLineNo">327</span> }<a name="line.327"></a> +<span class="sourceLineNo">328</span><a name="line.328"></a> +<span class="sourceLineNo">329</span> numTables = tables.size();<a name="line.329"></a> +<span class="sourceLineNo">330</span> numRegionsPerServerPerTable = new int[numServers][numTables];<a name="line.330"></a> +<span class="sourceLineNo">331</span><a name="line.331"></a> +<span class="sourceLineNo">332</span> for (int i = 0; i < numServers; i++) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> for (int j = 0; j < numTables; j++) {<a name="line.333"></a> +<span class="sourceLineNo">334</span> numRegionsPerServerPerTable[i][j] = 0;<a name="line.334"></a> +<span class="sourceLineNo">335</span> }<a name="line.335"></a> +<span class="sourceLineNo">336</span> }<a name="line.336"></a> +<span class="sourceLineNo">337</span><a name="line.337"></a> +<span class="sourceLineNo">338</span> for (int i=0; i < regionIndexToServerIndex.length; i++) {<a name="line.338"></a> +<span class="sourceLineNo">339</span> if (regionIndexToServerIndex[i] >= 0) {<a name="line.339"></a> +<span class="sourceLineNo">340</span> numRegionsPerServerPerTable[regionIndexToServerIndex[i]][regionIndexToTableIndex[i]]++;<a name="line.340"></a> +<span class="sourceLineNo">341</span> }<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span><a name="line.343"></a> +<span class="sourceLineNo">344</span> numMaxRegionsPerTable = new int[numTables];<a name="line.344"></a> +<span class="sourceLineNo">345</span> for (int serverIndex = 0 ; serverIndex < numRegionsPerServerPerTable.length; serverIndex++) {<a name="line.345"></a> +<span class="sourceLineNo">346</span> for (tableIndex = 0 ; tableIndex < numRegionsPerServerPerTable[serverIndex].length; tableIndex++) {<a name="line.346"></a> +<span class="sourceLineNo">347</span> if (numRegionsPerServerPerTable[serverIndex][tableIndex] > numMaxRegionsPerTable[tableIndex]) {<a name="line.347"></a> +<span class="sourceLineNo">348</span> numMaxRegionsPerTable[tableIndex] = numRegionsPerServerPerTable[serverIndex][tableIndex];<a name="line.348"></a> +<span class="sourceLineNo">349</span> }<a name="line.349"></a> +<span class="sourceLineNo">350</span> }<a name="line.350"></a> +<span class="sourceLineNo">351</span> }<a name="line.351"></a> +<span class="sourceLineNo">352</span><a name="line.352"></a> +<span class="sourceLineNo">353</span> for (int i = 0; i < regions.length; i ++) {<a name="line.353"></a> +<span class="sourceLineNo">354</span> HRegionInfo info = regions[i];<a name="line.354"></a> +<span class="sourceLineNo">355</span> if (RegionReplicaUtil.isDefaultReplica(info)) {<a name="line.355"></a> +<span class="sourceLineNo">356</span> regionIndexToPrimaryIndex[i] = i;<a name="line.356"></a> +<span class="sourceLineNo">357</span> } else {<a name="line.357"></a> +<span class="sourceLineNo">358</span> hasRegionReplicas = true;<a name="line.358"></a> +<span class="sourceLineNo">359</span> HRegionInfo primaryInfo = RegionReplicaUtil.getRegionInfoForDefaultReplica(info);<a name="line.359"></a> +<span class="sourceLineNo">360</span> regionIndexToPrimaryIndex[i] =<a name="line.360"></a> +<span class="sourceLineNo">361</span> regionsToIndex.containsKey(primaryInfo) 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class="sourceLineNo">372</span> }<a name="line.372"></a> +<span class="sourceLineNo">373</span> // sort the regions by primaries.<a name="line.373"></a> +<span class="sourceLineNo">374</span> Arrays.sort(primariesOfRegionsPerServer[i]);<a name="line.374"></a> +<span class="sourceLineNo">375</span> }<a name="line.375"></a> +<span class="sourceLineNo">376</span><a name="line.376"></a> +<span class="sourceLineNo">377</span> // compute regionsPerHost<a name="line.377"></a> +<span class="sourceLineNo">378</span> if (multiServersPerHost) {<a name="line.378"></a> +<span class="sourceLineNo">379</span> for (int i = 0 ; i < serversPerHost.length; i++) {<a name="line.379"></a> +<span class="sourceLineNo">380</span> int numRegionsPerHost = 0;<a name="line.380"></a> +<span class="sourceLineNo">381</span> for (int j = 0; j < serversPerHost[i].length; j++) {<a name="line.381"></a> +<span class="sourceLineNo">382</span> numRegionsPerHost += regionsPerServer[serversPerHost[i][j]].length;<a 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<TRUNCATED>
