http://git-wip-us.apache.org/repos/asf/hbase/blob/ef7355e1/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html index 11e91fd..a97ceb4 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html @@ -151,1030 +151,1027 @@ <span class="sourceLineNo">143</span> private final Map<ServerName, AdminService.BlockingInterface> rsAdmins =<a name="line.143"></a> <span class="sourceLineNo">144</span> new HashMap<ServerName, AdminService.BlockingInterface>();<a name="line.144"></a> <span class="sourceLineNo">145</span><a name="line.145"></a> -<span class="sourceLineNo">146</span> /**<a name="line.146"></a> -<span class="sourceLineNo">147</span> * List of region servers <ServerName> that should not get any more new<a name="line.147"></a> -<span class="sourceLineNo">148</span> * regions.<a name="line.148"></a> -<span class="sourceLineNo">149</span> */<a name="line.149"></a> -<span class="sourceLineNo">150</span> private final ArrayList<ServerName> drainingServers =<a name="line.150"></a> -<span class="sourceLineNo">151</span> new ArrayList<ServerName>();<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> private final Server master;<a name="line.153"></a> -<span class="sourceLineNo">154</span> private final MasterServices services;<a name="line.154"></a> -<span class="sourceLineNo">155</span> private final ClusterConnection connection;<a name="line.155"></a> -<span class="sourceLineNo">156</span><a name="line.156"></a> -<span class="sourceLineNo">157</span> private final DeadServer deadservers = new DeadServer();<a name="line.157"></a> +<span class="sourceLineNo">146</span> /** List of region servers that should not get any more new regions. */<a name="line.146"></a> +<span class="sourceLineNo">147</span> private final ArrayList<ServerName> drainingServers =<a name="line.147"></a> +<span class="sourceLineNo">148</span> new ArrayList<ServerName>();<a name="line.148"></a> +<span class="sourceLineNo">149</span><a name="line.149"></a> +<span class="sourceLineNo">150</span> private final Server master;<a name="line.150"></a> +<span class="sourceLineNo">151</span> private final MasterServices services;<a name="line.151"></a> +<span class="sourceLineNo">152</span> private final ClusterConnection connection;<a name="line.152"></a> +<span class="sourceLineNo">153</span><a name="line.153"></a> +<span class="sourceLineNo">154</span> private final DeadServer deadservers = new DeadServer();<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> private final long maxSkew;<a name="line.156"></a> +<span class="sourceLineNo">157</span> private final long warningSkew;<a name="line.157"></a> <span class="sourceLineNo">158</span><a name="line.158"></a> -<span class="sourceLineNo">159</span> private final long maxSkew;<a name="line.159"></a> -<span class="sourceLineNo">160</span> private final long warningSkew;<a name="line.160"></a> -<span class="sourceLineNo">161</span><a name="line.161"></a> -<span class="sourceLineNo">162</span> private final RetryCounterFactory pingRetryCounterFactory;<a name="line.162"></a> -<span class="sourceLineNo">163</span><a name="line.163"></a> -<span class="sourceLineNo">164</span> /**<a name="line.164"></a> -<span class="sourceLineNo">165</span> * Set of region servers which are dead but not processed immediately. If one<a name="line.165"></a> -<span class="sourceLineNo">166</span> * server died before master enables ServerShutdownHandler, the server will be<a name="line.166"></a> -<span class="sourceLineNo">167</span> * added to this set and will be processed through calling<a name="line.167"></a> -<span class="sourceLineNo">168</span> * {@link ServerManager#processQueuedDeadServers()} by master.<a name="line.168"></a> -<span class="sourceLineNo">169</span> * <p><a name="line.169"></a> -<span class="sourceLineNo">170</span> * A dead server is a server instance known to be dead, not listed in the /hbase/rs<a name="line.170"></a> -<span class="sourceLineNo">171</span> * znode any more. It may have not been submitted to ServerShutdownHandler yet<a name="line.171"></a> -<span class="sourceLineNo">172</span> * because the handler is not enabled.<a name="line.172"></a> +<span class="sourceLineNo">159</span> private final RetryCounterFactory pingRetryCounterFactory;<a name="line.159"></a> +<span class="sourceLineNo">160</span><a name="line.160"></a> +<span class="sourceLineNo">161</span> /**<a name="line.161"></a> +<span class="sourceLineNo">162</span> * Set of region servers which are dead but not processed immediately. If one<a name="line.162"></a> +<span class="sourceLineNo">163</span> * server died before master enables ServerShutdownHandler, the server will be<a name="line.163"></a> +<span class="sourceLineNo">164</span> * added to this set and will be processed through calling<a name="line.164"></a> +<span class="sourceLineNo">165</span> * {@link ServerManager#processQueuedDeadServers()} by master.<a name="line.165"></a> +<span class="sourceLineNo">166</span> * <p><a name="line.166"></a> +<span class="sourceLineNo">167</span> * A dead server is a server instance known to be dead, not listed in the /hbase/rs<a name="line.167"></a> +<span class="sourceLineNo">168</span> * znode any more. It may have not been submitted to ServerShutdownHandler yet<a name="line.168"></a> +<span class="sourceLineNo">169</span> * because the handler is not enabled.<a name="line.169"></a> +<span class="sourceLineNo">170</span> * <p><a name="line.170"></a> +<span class="sourceLineNo">171</span> * A dead server, which has been submitted to ServerShutdownHandler while the<a name="line.171"></a> +<span class="sourceLineNo">172</span> * handler is not enabled, is queued up.<a name="line.172"></a> <span class="sourceLineNo">173</span> * <p><a name="line.173"></a> -<span class="sourceLineNo">174</span> * A dead server, which has been submitted to ServerShutdownHandler while the<a name="line.174"></a> -<span class="sourceLineNo">175</span> * handler is not enabled, is queued up.<a name="line.175"></a> -<span class="sourceLineNo">176</span> * <p><a name="line.176"></a> -<span class="sourceLineNo">177</span> * So this is a set of region servers known to be dead but not submitted to<a name="line.177"></a> -<span class="sourceLineNo">178</span> * ServerShutdownHandler for processing yet.<a name="line.178"></a> -<span class="sourceLineNo">179</span> */<a name="line.179"></a> -<span class="sourceLineNo">180</span> private Set<ServerName> queuedDeadServers = new HashSet<ServerName>();<a name="line.180"></a> -<span class="sourceLineNo">181</span><a name="line.181"></a> -<span class="sourceLineNo">182</span> /**<a name="line.182"></a> -<span class="sourceLineNo">183</span> * Set of region servers which are dead and submitted to ServerShutdownHandler to process but not<a name="line.183"></a> -<span class="sourceLineNo">184</span> * fully processed immediately.<a name="line.184"></a> -<span class="sourceLineNo">185</span> * <p><a name="line.185"></a> -<span class="sourceLineNo">186</span> * If one server died before assignment manager finished the failover cleanup, the server will be<a name="line.186"></a> -<span class="sourceLineNo">187</span> * added to this set and will be processed through calling<a name="line.187"></a> -<span class="sourceLineNo">188</span> * {@link ServerManager#processQueuedDeadServers()} by assignment manager.<a name="line.188"></a> -<span class="sourceLineNo">189</span> * <p><a name="line.189"></a> -<span class="sourceLineNo">190</span> * The Boolean value indicates whether log split is needed inside ServerShutdownHandler<a name="line.190"></a> -<span class="sourceLineNo">191</span> * <p><a name="line.191"></a> -<span class="sourceLineNo">192</span> * ServerShutdownHandler processes a dead server submitted to the handler after the handler is<a name="line.192"></a> -<span class="sourceLineNo">193</span> * enabled. It may not be able to complete the processing because meta is not yet online or master<a name="line.193"></a> -<span class="sourceLineNo">194</span> * is currently in startup mode. In this case, the dead server will be parked in this set<a name="line.194"></a> -<span class="sourceLineNo">195</span> * temporarily.<a name="line.195"></a> -<span class="sourceLineNo">196</span> */<a name="line.196"></a> -<span class="sourceLineNo">197</span> private Map<ServerName, Boolean> requeuedDeadServers<a name="line.197"></a> -<span class="sourceLineNo">198</span> = new ConcurrentHashMap<ServerName, Boolean>();<a name="line.198"></a> +<span class="sourceLineNo">174</span> * So this is a set of region servers known to be dead but not submitted to<a name="line.174"></a> +<span class="sourceLineNo">175</span> * ServerShutdownHandler for processing yet.<a name="line.175"></a> +<span class="sourceLineNo">176</span> */<a name="line.176"></a> +<span class="sourceLineNo">177</span> private Set<ServerName> queuedDeadServers = new HashSet<ServerName>();<a name="line.177"></a> +<span class="sourceLineNo">178</span><a name="line.178"></a> +<span class="sourceLineNo">179</span> /**<a name="line.179"></a> +<span class="sourceLineNo">180</span> * Set of region servers which are dead and submitted to ServerShutdownHandler to process but not<a name="line.180"></a> +<span class="sourceLineNo">181</span> * fully processed immediately.<a name="line.181"></a> +<span class="sourceLineNo">182</span> * <p><a name="line.182"></a> +<span class="sourceLineNo">183</span> * If one server died before assignment manager finished the failover cleanup, the server will be<a name="line.183"></a> +<span class="sourceLineNo">184</span> * added to this set and will be processed through calling<a name="line.184"></a> +<span class="sourceLineNo">185</span> * {@link ServerManager#processQueuedDeadServers()} by assignment manager.<a name="line.185"></a> +<span class="sourceLineNo">186</span> * <p><a name="line.186"></a> +<span class="sourceLineNo">187</span> * The Boolean value indicates whether log split is needed inside ServerShutdownHandler<a name="line.187"></a> +<span class="sourceLineNo">188</span> * <p><a name="line.188"></a> +<span class="sourceLineNo">189</span> * ServerShutdownHandler processes a dead server submitted to the handler after the handler is<a name="line.189"></a> +<span class="sourceLineNo">190</span> * enabled. It may not be able to complete the processing because meta is not yet online or master<a name="line.190"></a> +<span class="sourceLineNo">191</span> * is currently in startup mode. In this case, the dead server will be parked in this set<a name="line.191"></a> +<span class="sourceLineNo">192</span> * temporarily.<a name="line.192"></a> +<span class="sourceLineNo">193</span> */<a name="line.193"></a> +<span class="sourceLineNo">194</span> private Map<ServerName, Boolean> requeuedDeadServers<a name="line.194"></a> +<span class="sourceLineNo">195</span> = new ConcurrentHashMap<ServerName, Boolean>();<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> /** Listeners that are called on server events. */<a name="line.197"></a> +<span class="sourceLineNo">198</span> private List<ServerListener> listeners = new CopyOnWriteArrayList<ServerListener>();<a name="line.198"></a> <span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> /** Listeners that are called on server events. */<a name="line.200"></a> -<span class="sourceLineNo">201</span> private List<ServerListener> listeners = new CopyOnWriteArrayList<ServerListener>();<a name="line.201"></a> -<span class="sourceLineNo">202</span><a name="line.202"></a> -<span class="sourceLineNo">203</span> /**<a name="line.203"></a> -<span class="sourceLineNo">204</span> * Constructor.<a name="line.204"></a> -<span class="sourceLineNo">205</span> * @param master<a name="line.205"></a> -<span class="sourceLineNo">206</span> * @param services<a name="line.206"></a> -<span class="sourceLineNo">207</span> * @throws ZooKeeperConnectionException<a name="line.207"></a> -<span class="sourceLineNo">208</span> */<a name="line.208"></a> -<span class="sourceLineNo">209</span> public ServerManager(final Server master, final MasterServices services)<a name="line.209"></a> -<span class="sourceLineNo">210</span> throws IOException {<a name="line.210"></a> -<span class="sourceLineNo">211</span> this(master, services, true);<a name="line.211"></a> -<span class="sourceLineNo">212</span> }<a name="line.212"></a> -<span class="sourceLineNo">213</span><a name="line.213"></a> -<span class="sourceLineNo">214</span> ServerManager(final Server master, final MasterServices services,<a name="line.214"></a> -<span class="sourceLineNo">215</span> final boolean connect) throws IOException {<a name="line.215"></a> -<span class="sourceLineNo">216</span> this.master = master;<a name="line.216"></a> -<span class="sourceLineNo">217</span> this.services = services;<a name="line.217"></a> -<span class="sourceLineNo">218</span> Configuration c = master.getConfiguration();<a name="line.218"></a> -<span class="sourceLineNo">219</span> maxSkew = c.getLong("hbase.master.maxclockskew", 30000);<a name="line.219"></a> -<span class="sourceLineNo">220</span> warningSkew = c.getLong("hbase.master.warningclockskew", 10000);<a name="line.220"></a> -<span class="sourceLineNo">221</span> this.connection = connect ? master.getConnection() : null;<a name="line.221"></a> -<span class="sourceLineNo">222</span> int pingMaxAttempts = Math.max(1, master.getConfiguration().getInt(<a name="line.222"></a> -<span class="sourceLineNo">223</span> "hbase.master.maximum.ping.server.attempts", 10));<a name="line.223"></a> -<span class="sourceLineNo">224</span> int pingSleepInterval = Math.max(1, master.getConfiguration().getInt(<a name="line.224"></a> -<span class="sourceLineNo">225</span> "hbase.master.ping.server.retry.sleep.interval", 100));<a name="line.225"></a> -<span class="sourceLineNo">226</span> this.pingRetryCounterFactory = new RetryCounterFactory(pingMaxAttempts, pingSleepInterval);<a name="line.226"></a> -<span class="sourceLineNo">227</span> }<a name="line.227"></a> -<span class="sourceLineNo">228</span><a name="line.228"></a> -<span class="sourceLineNo">229</span> /**<a name="line.229"></a> -<span class="sourceLineNo">230</span> * Add the listener to the notification list.<a name="line.230"></a> -<span class="sourceLineNo">231</span> * @param listener The ServerListener to register<a name="line.231"></a> -<span class="sourceLineNo">232</span> */<a name="line.232"></a> -<span class="sourceLineNo">233</span> public void registerListener(final ServerListener listener) {<a name="line.233"></a> -<span class="sourceLineNo">234</span> this.listeners.add(listener);<a name="line.234"></a> -<span class="sourceLineNo">235</span> }<a name="line.235"></a> -<span class="sourceLineNo">236</span><a name="line.236"></a> -<span class="sourceLineNo">237</span> /**<a name="line.237"></a> -<span class="sourceLineNo">238</span> * Remove the listener from the notification list.<a name="line.238"></a> -<span class="sourceLineNo">239</span> * @param listener The ServerListener to unregister<a name="line.239"></a> -<span class="sourceLineNo">240</span> */<a name="line.240"></a> -<span class="sourceLineNo">241</span> public boolean unregisterListener(final ServerListener listener) {<a name="line.241"></a> -<span class="sourceLineNo">242</span> return this.listeners.remove(listener);<a name="line.242"></a> -<span class="sourceLineNo">243</span> }<a name="line.243"></a> -<span class="sourceLineNo">244</span><a name="line.244"></a> -<span class="sourceLineNo">245</span> /**<a name="line.245"></a> -<span class="sourceLineNo">246</span> * Let the server manager know a new regionserver has come online<a name="line.246"></a> -<span class="sourceLineNo">247</span> * @param request the startup request<a name="line.247"></a> -<span class="sourceLineNo">248</span> * @param ia the InetAddress from which request is received<a name="line.248"></a> -<span class="sourceLineNo">249</span> * @return The ServerName we know this server as.<a name="line.249"></a> -<span class="sourceLineNo">250</span> * @throws IOException<a name="line.250"></a> -<span class="sourceLineNo">251</span> */<a name="line.251"></a> -<span class="sourceLineNo">252</span> ServerName regionServerStartup(RegionServerStartupRequest request, InetAddress ia)<a name="line.252"></a> -<span class="sourceLineNo">253</span> throws IOException {<a name="line.253"></a> -<span class="sourceLineNo">254</span> // Test for case where we get a region startup message from a regionserver<a name="line.254"></a> -<span class="sourceLineNo">255</span> // that has been quickly restarted but whose znode expiration handler has<a name="line.255"></a> -<span class="sourceLineNo">256</span> // not yet run, or from a server whose fail we are currently processing.<a name="line.256"></a> -<span class="sourceLineNo">257</span> // Test its host+port combo is present in serverAddresstoServerInfo. If it<a name="line.257"></a> -<span class="sourceLineNo">258</span> // is, reject the server and trigger its expiration. The next time it comes<a name="line.258"></a> -<span class="sourceLineNo">259</span> // in, it should have been removed from serverAddressToServerInfo and queued<a name="line.259"></a> -<span class="sourceLineNo">260</span> // for processing by ProcessServerShutdown.<a name="line.260"></a> -<span class="sourceLineNo">261</span><a name="line.261"></a> -<span class="sourceLineNo">262</span> final String hostname = request.hasUseThisHostnameInstead() ?<a name="line.262"></a> -<span class="sourceLineNo">263</span> request.getUseThisHostnameInstead() :ia.getHostName();<a name="line.263"></a> -<span class="sourceLineNo">264</span> ServerName sn = ServerName.valueOf(hostname, request.getPort(),<a name="line.264"></a> -<span class="sourceLineNo">265</span> request.getServerStartCode());<a name="line.265"></a> -<span class="sourceLineNo">266</span> checkClockSkew(sn, request.getServerCurrentTime());<a name="line.266"></a> -<span class="sourceLineNo">267</span> checkIsDead(sn, "STARTUP");<a 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class="sourceLineNo">278</span> storeFlushedSequenceIdsByRegion.get(regionName);<a name="line.278"></a> -<span class="sourceLineNo">279</span> if (storeFlushedSequenceId != null) {<a name="line.279"></a> -<span class="sourceLineNo">280</span> return storeFlushedSequenceId;<a name="line.280"></a> -<span class="sourceLineNo">281</span> }<a name="line.281"></a> -<span class="sourceLineNo">282</span> storeFlushedSequenceId = new ConcurrentSkipListMap<byte[], Long>(Bytes.BYTES_COMPARATOR);<a name="line.282"></a> -<span class="sourceLineNo">283</span> ConcurrentNavigableMap<byte[], Long> alreadyPut =<a name="line.283"></a> -<span class="sourceLineNo">284</span> storeFlushedSequenceIdsByRegion.putIfAbsent(regionName, storeFlushedSequenceId);<a name="line.284"></a> -<span class="sourceLineNo">285</span> return alreadyPut == null ? storeFlushedSequenceId : alreadyPut;<a name="line.285"></a> -<span class="sourceLineNo">286</span> }<a name="line.286"></a> -<span class="sourceLineNo">287</span> /**<a name="line.287"></a> -<span class="sourceLineNo">288</span> * Updates last flushed sequence Ids for the regions on server sn<a name="line.288"></a> -<span class="sourceLineNo">289</span> * @param sn<a name="line.289"></a> -<span class="sourceLineNo">290</span> * @param hsl<a name="line.290"></a> -<span class="sourceLineNo">291</span> */<a name="line.291"></a> -<span class="sourceLineNo">292</span> private void updateLastFlushedSequenceIds(ServerName sn, ServerLoad hsl) {<a name="line.292"></a> -<span class="sourceLineNo">293</span> Map<byte[], RegionLoad> regionsLoad = hsl.getRegionsLoad();<a name="line.293"></a> -<span class="sourceLineNo">294</span> for (Entry<byte[], RegionLoad> entry : regionsLoad.entrySet()) {<a name="line.294"></a> -<span class="sourceLineNo">295</span> byte[] encodedRegionName = Bytes.toBytes(HRegionInfo.encodeRegionName(entry.getKey()));<a name="line.295"></a> -<span class="sourceLineNo">296</span> Long existingValue = flushedSequenceIdByRegion.get(encodedRegionName);<a name="line.296"></a> -<span class="sourceLineNo">297</span> long l = entry.getValue().getCompleteSequenceId();<a name="line.297"></a> -<span class="sourceLineNo">298</span> // Don't let smaller sequence ids override greater sequence ids.<a name="line.298"></a> -<span class="sourceLineNo">299</span> if (LOG.isTraceEnabled()) {<a name="line.299"></a> -<span class="sourceLineNo">300</span> LOG.trace(Bytes.toString(encodedRegionName) + ", existingValue=" + existingValue +<a name="line.300"></a> -<span class="sourceLineNo">301</span> ", completeSequenceId=" + l);<a name="line.301"></a> -<span class="sourceLineNo">302</span> }<a name="line.302"></a> -<span class="sourceLineNo">303</span> if (existingValue == null || (l != HConstants.NO_SEQNUM && l > existingValue)) {<a name="line.303"></a> -<span class="sourceLineNo">304</span> flushedSequenceIdByRegion.put(encodedRegionName, l);<a name="line.304"></a> -<span class="sourceLineNo">305</span> } else if (l != HConstants.NO_SEQNUM && l < existingValue) {<a name="line.305"></a> -<span class="sourceLineNo">306</span> LOG.warn("RegionServer " + sn + " indicates a last flushed sequence id ("<a name="line.306"></a> -<span class="sourceLineNo">307</span> + l + ") that is less than the previous last flushed sequence id ("<a name="line.307"></a> -<span class="sourceLineNo">308</span> + existingValue + ") for region " + Bytes.toString(entry.getKey()) + " Ignoring.");<a name="line.308"></a> -<span class="sourceLineNo">309</span> }<a name="line.309"></a> -<span class="sourceLineNo">310</span> ConcurrentNavigableMap<byte[], Long> storeFlushedSequenceId =<a name="line.310"></a> -<span class="sourceLineNo">311</span> getOrCreateStoreFlushedSequenceId(encodedRegionName);<a name="line.311"></a> -<span class="sourceLineNo">312</span> for (StoreSequenceId storeSeqId : entry.getValue().getStoreCompleteSequenceId()) {<a name="line.312"></a> -<span class="sourceLineNo">313</span> byte[] family = storeSeqId.getFamilyName().toByteArray();<a name="line.313"></a> -<span class="sourceLineNo">314</span> existingValue = storeFlushedSequenceId.get(family);<a name="line.314"></a> -<span class="sourceLineNo">315</span> l = storeSeqId.getSequenceId();<a name="line.315"></a> -<span class="sourceLineNo">316</span> if (LOG.isTraceEnabled()) {<a name="line.316"></a> -<span class="sourceLineNo">317</span> LOG.trace(Bytes.toString(encodedRegionName) + ", family=" + Bytes.toString(family) +<a name="line.317"></a> -<span class="sourceLineNo">318</span> ", existingValue=" + existingValue + ", completeSequenceId=" + l);<a name="line.318"></a> -<span class="sourceLineNo">319</span> }<a name="line.319"></a> -<span class="sourceLineNo">320</span> // Don't let smaller sequence ids override greater sequence ids.<a name="line.320"></a> -<span class="sourceLineNo">321</span> if (existingValue == null || (l != HConstants.NO_SEQNUM && l > existingValue.longValue())) {<a name="line.321"></a> -<span 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let the server in. 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Meta table can and<a name="line.651"></a> -<span class="sourceLineNo">652</span> // should be re-assigned, log splitting can be done too. However, it is better to<a name="line.652"></a> -<span class="sourceLineNo">653</span> // wait till the cleanup is done before re-assigning user regions.<a name="line.653"></a> -<span class="sourceLineNo">654</span> //<a name="line.654"></a> -<span class="sourceLineNo">655</span> // We should not wait in the server shutdown handler thread since it can clog<a name="line.655"></a> -<span class="sourceLineNo">656</span> // the handler threads and meta table could not be re-assigned in case<a name="line.656"></a> -<span class="sourceLineNo">657</span> // the corresponding server is down. 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" +<a name="line.702"></a> -<span class="sourceLineNo">703</span> "Removing from draining list anyway, as requested.");<a name="line.703"></a> -<span class="sourceLineNo">704</span> }<a name="line.704"></a> -<span class="sourceLineNo">705</span> // Remove the server from the draining servers lists.<a name="line.705"></a> -<span class="sourceLineNo">706</span> return this.drainingServers.remove(sn);<a name="line.706"></a> -<span class="sourceLineNo">707</span> }<a name="line.707"></a> -<span class="sourceLineNo">708</span><a name="line.708"></a> -<span class="sourceLineNo">709</span> /*<a name="line.709"></a> -<span class="sourceLineNo">710</span> * Add the server to the drain list.<a name="line.710"></a> -<span class="sourceLineNo">711</span> */<a name="line.711"></a> -<span class="sourceLineNo">712</span> public boolean addServerToDrainList(final ServerName sn) {<a name="line.712"></a> -<span class="sourceLineNo">713</span> // Warn if the server (sn) is not online. 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class="sourceLineNo">759</span> }<a name="line.759"></a> -<span class="sourceLineNo">760</span><a name="line.760"></a> -<span class="sourceLineNo">761</span> /**<a name="line.761"></a> -<span class="sourceLineNo">762</span> * Sends an OPEN RPC to the specified server to open the specified region.<a name="line.762"></a> -<span class="sourceLineNo">763</span> * <p><a name="line.763"></a> -<span class="sourceLineNo">764</span> * Open should not fail but can if server just crashed.<a name="line.764"></a> -<span class="sourceLineNo">765</span> * <p><a name="line.765"></a> -<span class="sourceLineNo">766</span> * @param server server to open a region<a name="line.766"></a> -<span class="sourceLineNo">767</span> * @param regionOpenInfos info of a list of regions to open<a name="line.767"></a> -<span class="sourceLineNo">768</span> * @return a list of region opening states<a name="line.768"></a> -<span class="sourceLineNo">769</span> */<a name="line.769"></a> -<span 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RequestConverter.buildOpenRegionRequest(server, regionOpenInfos,<a name="line.779"></a> -<span class="sourceLineNo">780</span> (RecoveryMode.LOG_REPLAY == this.services.getMasterFileSystem().getLogRecoveryMode()));<a name="line.780"></a> -<span class="sourceLineNo">781</span> try {<a name="line.781"></a> -<span class="sourceLineNo">782</span> OpenRegionResponse response = admin.openRegion(null, request);<a name="line.782"></a> -<span class="sourceLineNo">783</span> return ResponseConverter.getRegionOpeningStateList(response);<a name="line.783"></a> -<span class="sourceLineNo">784</span> } catch (ServiceException se) {<a name="line.784"></a> -<span class="sourceLineNo">785</span> throw ProtobufUtil.getRemoteException(se);<a name="line.785"></a> -<span class="sourceLineNo">786</span> }<a name="line.786"></a> -<span class="sourceLineNo">787</span> }<a name="line.787"></a> -<span class="sourceLineNo">788</span><a name="line.788"></a> -<span class="sourceLineNo">789</span> /**<a name="line.789"></a> -<span class="sourceLineNo">790</span> * Sends an CLOSE RPC to the specified server to close the specified region.<a name="line.790"></a> -<span class="sourceLineNo">791</span> * <p><a name="line.791"></a> -<span class="sourceLineNo">792</span> * A region server could reject the close request because it either does not<a name="line.792"></a> -<span class="sourceLineNo">793</span> * have the specified region or the region is being split.<a name="line.793"></a> -<span class="sourceLineNo">794</span> * @param server server to open a region<a name="line.794"></a> -<span class="sourceLineNo">795</span> * @param region region to open<a name="line.795"></a> -<span class="sourceLineNo">796</span> * @param dest - if the region is moved to another server, the destination server. null otherwise.<a name="line.796"></a> -<span class="sourceLineNo">797</span> * @throws IOException<a name="line.797"></a> -<span class="sourceLineNo">798</span> */<a name="line.798"></a> -<span class="sourceLineNo">799</span> public boolean sendRegionClose(ServerName server, HRegionInfo region,<a name="line.799"></a> -<span class="sourceLineNo">800</span> ServerName dest) throws IOException {<a name="line.800"></a> -<span class="sourceLineNo">801</span> if (server == null) throw new NullPointerException("Passed server is null");<a name="line.801"></a> -<span class="sourceLineNo">802</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.802"></a> -<span class="sourceLineNo">803</span> if (admin == null) {<a name="line.803"></a> -<span class="sourceLineNo">804</span> throw new IOException("Attempting to send CLOSE RPC to server " +<a name="line.804"></a> -<span class="sourceLineNo">805</span> server.toString() + " for region " +<a name="line.805"></a> -<span class="sourceLineNo">806</span> region.getRegionNameAsString() +<a name="line.806"></a> -<span class="sourceLineNo">807</span> " failed because no RPC connection found to this server");<a name="line.807"></a> -<span class="sourceLineNo">808</span> }<a name="line.808"></a> -<span class="sourceLineNo">809</span> return ProtobufUtil.closeRegion(admin, server, region.getRegionName(),<a name="line.809"></a> -<span class="sourceLineNo">810</span> dest);<a name="line.810"></a> -<span class="sourceLineNo">811</span> }<a name="line.811"></a> -<span class="sourceLineNo">812</span><a name="line.812"></a> -<span class="sourceLineNo">813</span> public boolean sendRegionClose(ServerName server,<a name="line.813"></a> -<span class="sourceLineNo">814</span> HRegionInfo region) throws IOException {<a name="line.814"></a> -<span class="sourceLineNo">815</span> return sendRegionClose(server, region, null);<a name="line.815"></a> -<span class="sourceLineNo">816</span> }<a name="line.816"></a> -<span class="sourceLineNo">817</span><a name="line.817"></a> -<span class="sourceLineNo">818</span> /**<a name="line.818"></a> -<span class="sourceLineNo">819</span> * Sends a WARMUP RPC to the specified server to warmup the specified region.<a name="line.819"></a> -<span class="sourceLineNo">820</span> * <p><a name="line.820"></a> -<span class="sourceLineNo">821</span> * A region server could reject the close request because it either does not<a name="line.821"></a> -<span class="sourceLineNo">822</span> * have the specified region or the region is being split.<a name="line.822"></a> -<span class="sourceLineNo">823</span> * @param server server to warmup a region<a name="line.823"></a> -<span class="sourceLineNo">824</span> * @param region region to warmup<a name="line.824"></a> -<span class="sourceLineNo">825</span> */<a name="line.825"></a> -<span class="sourceLineNo">826</span> public void sendRegionWarmup(ServerName server,<a name="line.826"></a> -<span class="sourceLineNo">827</span> HRegionInfo region) {<a name="line.827"></a> -<span class="sourceLineNo">828</span> if (server == null) return;<a name="line.828"></a> -<span class="sourceLineNo">829</span> try {<a name="line.829"></a> -<span class="sourceLineNo">830</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.830"></a> -<span class="sourceLineNo">831</span> ProtobufUtil.warmupRegion(admin, region);<a name="line.831"></a> -<span class="sourceLineNo">832</span> } catch (IOException e) {<a name="line.832"></a> -<span class="sourceLineNo">833</span> LOG.error("Received exception in RPC for warmup server:" +<a name="line.833"></a> -<span class="sourceLineNo">834</span> server + "region: " + region +<a name="line.834"></a> -<span class="sourceLineNo">835</span> "exception: " + e);<a name="line.835"></a> -<span class="sourceLineNo">836</span> }<a name="line.836"></a> -<span class="sourceLineNo">837</span> }<a name="line.837"></a> -<span class="sourceLineNo">838</span><a name="line.838"></a> -<span class="sourceLineNo">839</span> /**<a name="line.839"></a> -<span class="sourceLineNo">840</span> * Contacts a region server and waits up to timeout ms<a name="line.840"></a> -<span class="sourceLineNo">841</span> * to close the region. This bypasses the active hmaster.<a name="line.841"></a> -<span class="sourceLineNo">842</span> */<a name="line.842"></a> -<span class="sourceLineNo">843</span> public static void closeRegionSilentlyAndWait(ClusterConnection connection, <a name="line.843"></a> -<span class="sourceLineNo">844</span> ServerName server, HRegionInfo region, long timeout) throws IOException, InterruptedException {<a name="line.844"></a> -<span class="sourceLineNo">845</span> AdminService.BlockingInterface rs = connection.getAdmin(server);<a name="line.845"></a> -<span class="sourceLineNo">846</span> try {<a name="line.846"></a> -<span class="sourceLineNo">847</span> ProtobufUtil.closeRegion(rs, server, region.getRegionName());<a name="line.847"></a> -<span class="sourceLineNo">848</span> } catch (IOException e) {<a name="line.848"></a> -<span class="sourceLineNo">849</span> LOG.warn("Exception when closing region: " + region.getRegionNameAsString(), e);<a name="line.849"></a> -<span class="sourceLineNo">850</span> }<a name="line.850"></a> -<span class="sourceLineNo">851</span> long expiration = timeout + System.currentTimeMillis();<a name="line.851"></a> -<span class="sourceLineNo">852</span> while (System.currentTimeMillis() < expiration) {<a name="line.852"></a> -<span class="sourceLineNo">853</span> try {<a name="line.853"></a> -<span class="sourceLineNo">854</span> HRegionInfo rsRegion =<a name="line.854"></a> -<span class="sourceLineNo">855</span> ProtobufUtil.getRegionInfo(rs, region.getRegionName());<a name="line.855"></a> -<span class="sourceLineNo">856</span> if (rsRegion == null) return;<a name="line.856"></a> -<span class="sourceLineNo">857</span> } catch (IOException ioe) {<a name="line.857"></a> -<span class="sourceLineNo">858</span> if (ioe instanceof NotServingRegionException) // no need to retry again<a name="line.858"></a> -<span class="sourceLineNo">859</span> return;<a name="line.859"></a> -<span class="sourceLineNo">860</span> LOG.warn("Exception when retrieving regioninfo from: " + region.getRegionNameAsString(), ioe);<a name="line.860"></a> -<span class="sourceLineNo">861</span> }<a name="line.861"></a> -<span class="sourceLineNo">862</span> Thread.sleep(1000);<a name="line.862"></a> -<span class="sourceLineNo">863</span> }<a name="line.863"></a> -<span class="sourceLineNo">864</span> throw new IOException("Region " + region + " failed to close within"<a name="line.864"></a> -<span class="sourceLineNo">865</span> + " timeout " + timeout);<a name="line.865"></a> -<span class="sourceLineNo">866</span> }<a name="line.866"></a> -<span class="sourceLineNo">867</span><a name="line.867"></a> -<span class="sourceLineNo">868</span> /**<a name="line.868"></a> -<span class="sourceLineNo">869</span> * Sends an MERGE REGIONS RPC to the specified server to merge the specified<a name="line.869"></a> -<span class="sourceLineNo">870</span> * regions.<a name="line.870"></a> -<span class="sourceLineNo">871</span> * <p><a name="line.871"></a> -<span class="sourceLineNo">872</span> * A region server could reject the close request because it either does not<a name="line.872"></a> -<span class="sourceLineNo">873</span> * have the specified region.<a name="line.873"></a> -<span class="sourceLineNo">874</span> * @param server server to merge regions<a name="line.874"></a> -<span class="sourceLineNo">875</span> * @param region_a region to merge<a name="line.875"></a> -<span class="sourceLineNo">876</span> * @param region_b region to merge<a name="line.876"></a> -<span class="sourceLineNo">877</span> * @param forcible true if do a compulsory merge, otherwise we will only merge<a name="line.877"></a> -<span class="sourceLineNo">878</span> * two adjacent regions<a name="line.878"></a> -<span class="sourceLineNo">879</span> * @throws IOException<a name="line.879"></a> -<span class="sourceLineNo">880</span> */<a name="line.880"></a> -<span class="sourceLineNo">881</span> public void sendRegionsMerge(ServerName server, HRegionInfo region_a,<a name="line.881"></a> -<span class="sourceLineNo">882</span> HRegionInfo region_b, boolean forcible) throws IOException {<a name="line.882"></a> -<span class="sourceLineNo">883</span> if (server == null)<a name="line.883"></a> -<span class="sourceLineNo">884</span> throw new NullPointerException("Passed server is null");<a name="line.884"></a> -<span class="sourceLineNo">885</span> if (region_a == null || region_b == null)<a name="line.885"></a> -<span class="sourceLineNo">886</span> throw new NullPointerException("Passed region is null");<a name="line.886"></a> -<span class="sourceLineNo">887</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.887"></a> -<span class="sourceLineNo">888</span> if (admin == null) {<a name="line.888"></a> -<span class="sourceLineNo">889</span> throw new IOException("Attempting to send MERGE REGIONS RPC to server "<a name="line.889"></a> -<span class="sourceLineNo">890</span> + server.toString() + " for region "<a name="line.890"></a> -<span class="sourceLineNo">891</span> + region_a.getRegionNameAsString() + ","<a name="line.891"></a> -<span class="sourceLineNo">892</span> + region_b.getRegionNameAsString()<a name="line.892"></a> -<span class="sourceLineNo">893</span> + " failed because no RPC connection found to this server");<a name="line.893"></a> -<span class="sourceLineNo">894</span> }<a name="line.894"></a> -<span class="sourceLineNo">895</span> ProtobufUtil.mergeRegions(admin, region_a, region_b, forcible);<a name="line.895"></a> -<span class="sourceLineNo">896</span> }<a name="line.896"></a> -<span class="sourceLineNo">897</span><a name="line.897"></a> -<span class="sourceLineNo">898</span> /**<a name="line.898"></a> -<span class="sourceLineNo">899</span> * Check if a region server is reachable and has the expected start code<a name="line.899"></a> -<span class="sourceLineNo">900</span> */<a name="line.900"></a> -<span class="sourceLineNo">901</span> public boolean isServerReachable(ServerName server) {<a name="line.901"></a> -<span class="sourceLineNo">902</span> if (server == null) throw new NullPointerException("Passed server is null");<a name="line.902"></a> -<span class="sourceLineNo">903</span><a name="line.903"></a> -<span class="sourceLineNo">904</span> RetryCounter retryCounter = pingRetryCounterFactory.create();<a name="line.904"></a> -<span class="sourceLineNo">905</span> while (retryCounter.shouldRetry()) {<a name="line.905"></a> -<span class="sourceLineNo">906</span> try {<a name="line.906"></a> -<span class="sourceLineNo">907</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.907"></a> -<span class="sourceLineNo">908</span> if (admin != null) {<a name="line.908"></a> -<span class="sourceLineNo">909</span> ServerInfo info = ProtobufUtil.getServerInfo(admin);<a name="line.909"></a> -<span class="sourceLineNo">910</span> return info != null && info.hasServerName()<a name="line.910"></a> -<span 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class="sourceLineNo">933</span> throws IOException {<a name="line.933"></a> -<span class="sourceLineNo">934</span> AdminService.BlockingInterface admin = this.rsAdmins.get(sn);<a name="line.934"></a> -<span class="sourceLineNo">935</span> if (admin == null) {<a name="line.935"></a> -<span class="sourceLineNo">936</span> LOG.debug("New admin connection to " + sn.toString());<a name="line.936"></a> -<span class="sourceLineNo">937</span> if (sn.equals(master.getServerName()) && master instanceof HRegionServer) {<a name="line.937"></a> -<span class="sourceLineNo">938</span> // A master is also a region server now, see HBASE-10569 for details<a name="line.938"></a> -<span class="sourceLineNo">939</span> admin = ((HRegionServer)master).getRSRpcServices();<a name="line.939"></a> -<span class="sourceLineNo">940</span> } else {<a name="line.940"></a> -<span class="sourceLineNo">941</span> admin = this.connection.getAdmin(sn);<a name="line.941"></a> -<span class="sourceLineNo">942</span> }<a 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<TRUNCATED>
