http://git-wip-us.apache.org/repos/asf/hbase-site/blob/a108018f/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html index f0775d0..40cd159 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html @@ -943,7 +943,7 @@ <span class="sourceLineNo">935</span> wakeServerReportEvent(serverNode);<a name="line.935"></a> <span class="sourceLineNo">936</span> }<a name="line.936"></a> <span class="sourceLineNo">937</span><a name="line.937"></a> -<span class="sourceLineNo">938</span> public void checkOnlineRegionsReportForMeta(final ServerStateNode serverNode,<a name="line.938"></a> +<span class="sourceLineNo">938</span> void checkOnlineRegionsReportForMeta(final ServerStateNode serverNode,<a name="line.938"></a> <span class="sourceLineNo">939</span> final Set<byte[]> regionNames) {<a name="line.939"></a> <span class="sourceLineNo">940</span> try {<a name="line.940"></a> <span class="sourceLineNo">941</span> for (byte[] regionName: regionNames) {<a name="line.941"></a> @@ -959,7 +959,7 @@ <span class="sourceLineNo">951</span> final RegionStateNode regionNode = regionStates.getOrCreateRegionNode(hri);<a name="line.951"></a> <span class="sourceLineNo">952</span> LOG.info("META REPORTED: " + regionNode);<a name="line.952"></a> <span class="sourceLineNo">953</span> if (!reportTransition(regionNode, serverNode, TransitionCode.OPENED, 0)) {<a name="line.953"></a> -<span class="sourceLineNo">954</span> LOG.warn("META REPORTED but no procedure found");<a name="line.954"></a> +<span class="sourceLineNo">954</span> LOG.warn("META REPORTED but no procedure found (complete?)");<a name="line.954"></a> <span class="sourceLineNo">955</span> regionNode.setRegionLocation(serverNode.getServerName());<a name="line.955"></a> <span class="sourceLineNo">956</span> } else if (LOG.isTraceEnabled()) {<a name="line.956"></a> <span class="sourceLineNo">957</span> LOG.trace("META REPORTED: " + regionNode);<a name="line.957"></a> @@ -1191,671 +1191,685 @@ <span class="sourceLineNo">1183</span> public void visitRegionState(final RegionInfo regionInfo, final State state,<a name="line.1183"></a> <span class="sourceLineNo">1184</span> final ServerName regionLocation, final ServerName lastHost, final long openSeqNum) {<a name="line.1184"></a> <span class="sourceLineNo">1185</span> final RegionStateNode regionNode = regionStates.getOrCreateRegionNode(regionInfo);<a name="line.1185"></a> -<span class="sourceLineNo">1186</span> synchronized (regionNode) {<a name="line.1186"></a> -<span class="sourceLineNo">1187</span> if (!regionNode.isInTransition()) {<a name="line.1187"></a> -<span class="sourceLineNo">1188</span> regionNode.setState(state);<a name="line.1188"></a> -<span class="sourceLineNo">1189</span> regionNode.setLastHost(lastHost);<a name="line.1189"></a> -<span class="sourceLineNo">1190</span> regionNode.setRegionLocation(regionLocation);<a name="line.1190"></a> -<span class="sourceLineNo">1191</span> regionNode.setOpenSeqNum(openSeqNum);<a name="line.1191"></a> -<span class="sourceLineNo">1192</span><a name="line.1192"></a> -<span class="sourceLineNo">1193</span> if (state == State.OPEN) {<a name="line.1193"></a> -<span class="sourceLineNo">1194</span> assert regionLocation != null : "found null region location for " + regionNode;<a name="line.1194"></a> -<span class="sourceLineNo">1195</span> regionStates.addRegionToServer(regionLocation, regionNode);<a name="line.1195"></a> -<span class="sourceLineNo">1196</span> } else if (state == State.OFFLINE || regionInfo.isOffline()) {<a name="line.1196"></a> -<span class="sourceLineNo">1197</span> regionStates.addToOfflineRegions(regionNode);<a name="line.1197"></a> -<span class="sourceLineNo">1198</span> } else {<a name="line.1198"></a> -<span class="sourceLineNo">1199</span> // These regions should have a procedure in replay<a name="line.1199"></a> -<span class="sourceLineNo">1200</span> regionStates.addRegionInTransition(regionNode, null);<a name="line.1200"></a> -<span class="sourceLineNo">1201</span> }<a name="line.1201"></a> -<span class="sourceLineNo">1202</span> }<a name="line.1202"></a> -<span class="sourceLineNo">1203</span> }<a name="line.1203"></a> -<span class="sourceLineNo">1204</span> }<a name="line.1204"></a> -<span class="sourceLineNo">1205</span> });<a name="line.1205"></a> -<span class="sourceLineNo">1206</span><a name="line.1206"></a> -<span class="sourceLineNo">1207</span> // every assignment is blocked until meta is loaded.<a name="line.1207"></a> -<span class="sourceLineNo">1208</span> wakeMetaLoadedEvent();<a name="line.1208"></a> -<span class="sourceLineNo">1209</span> }<a name="line.1209"></a> -<span class="sourceLineNo">1210</span><a name="line.1210"></a> -<span class="sourceLineNo">1211</span> // TODO: the assumption here is that if RSs are crashing while we are executing this<a name="line.1211"></a> -<span class="sourceLineNo">1212</span> // they will be handled by the SSH that are put in the ServerManager "queue".<a name="line.1212"></a> -<span class="sourceLineNo">1213</span> // we can integrate this a bit better.<a name="line.1213"></a> -<span class="sourceLineNo">1214</span> private boolean processofflineServersWithOnlineRegions() {<a name="line.1214"></a> -<span class="sourceLineNo">1215</span> boolean failover = !master.getServerManager().getDeadServers().isEmpty();<a name="line.1215"></a> -<span class="sourceLineNo">1216</span><a name="line.1216"></a> -<span class="sourceLineNo">1217</span> final Set<ServerName> offlineServersWithOnlineRegions = new HashSet<ServerName>();<a name="line.1217"></a> -<span class="sourceLineNo">1218</span> final ArrayList<RegionInfo> regionsToAssign = new ArrayList<RegionInfo>();<a name="line.1218"></a> -<span class="sourceLineNo">1219</span> long st, et;<a name="line.1219"></a> -<span class="sourceLineNo">1220</span><a name="line.1220"></a> -<span class="sourceLineNo">1221</span> st = System.currentTimeMillis();<a name="line.1221"></a> -<span class="sourceLineNo">1222</span> for (RegionStateNode regionNode: regionStates.getRegionNodes()) {<a name="line.1222"></a> -<span class="sourceLineNo">1223</span> if (regionNode.getState() == State.OPEN) {<a name="line.1223"></a> -<span class="sourceLineNo">1224</span> final ServerName serverName = regionNode.getRegionLocation();<a name="line.1224"></a> -<span class="sourceLineNo">1225</span> if (!master.getServerManager().isServerOnline(serverName)) {<a name="line.1225"></a> -<span class="sourceLineNo">1226</span> offlineServersWithOnlineRegions.add(serverName);<a name="line.1226"></a> -<span class="sourceLineNo">1227</span> }<a name="line.1227"></a> -<span class="sourceLineNo">1228</span> } else if (regionNode.getState() == State.OFFLINE) {<a name="line.1228"></a> -<span class="sourceLineNo">1229</span> if (isTableEnabled(regionNode.getTable())) {<a name="line.1229"></a> -<span class="sourceLineNo">1230</span> regionsToAssign.add(regionNode.getRegionInfo());<a name="line.1230"></a> -<span class="sourceLineNo">1231</span> }<a name="line.1231"></a> -<span class="sourceLineNo">1232</span> }<a name="line.1232"></a> -<span class="sourceLineNo">1233</span> }<a name="line.1233"></a> -<span class="sourceLineNo">1234</span> et = System.currentTimeMillis();<a name="line.1234"></a> -<span class="sourceLineNo">1235</span> LOG.info("[STEP-1] " + StringUtils.humanTimeDiff(et - st));<a name="line.1235"></a> -<span class="sourceLineNo">1236</span><a name="line.1236"></a> -<span class="sourceLineNo">1237</span> // kill servers with online regions<a name="line.1237"></a> -<span class="sourceLineNo">1238</span> st = System.currentTimeMillis();<a name="line.1238"></a> -<span class="sourceLineNo">1239</span> for (ServerName serverName: offlineServersWithOnlineRegions) {<a name="line.1239"></a> -<span class="sourceLineNo">1240</span> if (!master.getServerManager().isServerOnline(serverName)) {<a name="line.1240"></a> -<span class="sourceLineNo">1241</span> LOG.info("KILL RS hosting regions but not online " + serverName +<a name="line.1241"></a> -<span class="sourceLineNo">1242</span> " (master=" + master.getServerName() + ")");<a name="line.1242"></a> -<span class="sourceLineNo">1243</span> killRegionServer(serverName);<a name="line.1243"></a> -<span class="sourceLineNo">1244</span> }<a name="line.1244"></a> -<span class="sourceLineNo">1245</span> }<a name="line.1245"></a> -<span class="sourceLineNo">1246</span> et = System.currentTimeMillis();<a name="line.1246"></a> -<span class="sourceLineNo">1247</span> LOG.info("[STEP-2] " + StringUtils.humanTimeDiff(et - st));<a name="line.1247"></a> -<span class="sourceLineNo">1248</span><a name="line.1248"></a> -<span class="sourceLineNo">1249</span> setFailoverCleanupDone(true);<a name="line.1249"></a> -<span class="sourceLineNo">1250</span><a name="line.1250"></a> -<span class="sourceLineNo">1251</span> // assign offline regions<a name="line.1251"></a> -<span class="sourceLineNo">1252</span> st = System.currentTimeMillis();<a name="line.1252"></a> -<span class="sourceLineNo">1253</span> for (RegionInfo regionInfo: getOrderedRegions(regionsToAssign)) {<a name="line.1253"></a> -<span class="sourceLineNo">1254</span> master.getMasterProcedureExecutor().submitProcedure(<a name="line.1254"></a> -<span class="sourceLineNo">1255</span> createAssignProcedure(regionInfo, false));<a name="line.1255"></a> -<span class="sourceLineNo">1256</span> }<a name="line.1256"></a> -<span class="sourceLineNo">1257</span> et = System.currentTimeMillis();<a name="line.1257"></a> -<span class="sourceLineNo">1258</span> LOG.info("[STEP-3] " + StringUtils.humanTimeDiff(et - st));<a name="line.1258"></a> +<span class="sourceLineNo">1186</span> State localState = state;<a name="line.1186"></a> +<span class="sourceLineNo">1187</span> if (localState == null) {<a name="line.1187"></a> +<span class="sourceLineNo">1188</span> // No region state column data in hbase:meta table! Are I doing a rolling upgrade from<a name="line.1188"></a> +<span class="sourceLineNo">1189</span> // hbase1 to hbase2? Am I restoring a SNAPSHOT or otherwise adding a region to hbase:meta?<a name="line.1189"></a> +<span class="sourceLineNo">1190</span> // In any of these cases, state is empty. For now, presume OFFLINE but there are probably<a name="line.1190"></a> +<span class="sourceLineNo">1191</span> // cases where we need to probe more to be sure this correct; TODO informed by experience.<a name="line.1191"></a> +<span class="sourceLineNo">1192</span> LOG.info(regionInfo.getEncodedName() + " state=null; presuming " + State.OFFLINE);<a name="line.1192"></a> +<span class="sourceLineNo">1193</span> localState = State.OFFLINE;<a name="line.1193"></a> +<span class="sourceLineNo">1194</span> }<a name="line.1194"></a> +<span class="sourceLineNo">1195</span> synchronized (regionNode) {<a name="line.1195"></a> +<span class="sourceLineNo">1196</span> if (!regionNode.isInTransition()) {<a name="line.1196"></a> +<span class="sourceLineNo">1197</span> regionNode.setState(localState);<a name="line.1197"></a> +<span class="sourceLineNo">1198</span> regionNode.setLastHost(lastHost);<a name="line.1198"></a> +<span class="sourceLineNo">1199</span> regionNode.setRegionLocation(regionLocation);<a name="line.1199"></a> +<span class="sourceLineNo">1200</span> regionNode.setOpenSeqNum(openSeqNum);<a name="line.1200"></a> +<span class="sourceLineNo">1201</span><a name="line.1201"></a> +<span class="sourceLineNo">1202</span> if (localState == State.OPEN) {<a name="line.1202"></a> +<span class="sourceLineNo">1203</span> assert regionLocation != null : "found null region location for " + regionNode;<a name="line.1203"></a> +<span class="sourceLineNo">1204</span> regionStates.addRegionToServer(regionLocation, regionNode);<a name="line.1204"></a> +<span class="sourceLineNo">1205</span> } else if (localState == State.OFFLINE || regionInfo.isOffline()) {<a name="line.1205"></a> +<span class="sourceLineNo">1206</span> regionStates.addToOfflineRegions(regionNode);<a name="line.1206"></a> +<span class="sourceLineNo">1207</span> } else {<a name="line.1207"></a> +<span class="sourceLineNo">1208</span> // These regions should have a procedure in replay<a name="line.1208"></a> +<span class="sourceLineNo">1209</span> regionStates.addRegionInTransition(regionNode, null);<a name="line.1209"></a> +<span class="sourceLineNo">1210</span> }<a name="line.1210"></a> +<span class="sourceLineNo">1211</span> }<a name="line.1211"></a> +<span class="sourceLineNo">1212</span> }<a name="line.1212"></a> +<span class="sourceLineNo">1213</span> }<a name="line.1213"></a> +<span class="sourceLineNo">1214</span> });<a name="line.1214"></a> +<span class="sourceLineNo">1215</span><a name="line.1215"></a> +<span class="sourceLineNo">1216</span> // every assignment is blocked until meta is loaded.<a name="line.1216"></a> +<span class="sourceLineNo">1217</span> wakeMetaLoadedEvent();<a name="line.1217"></a> +<span class="sourceLineNo">1218</span> }<a name="line.1218"></a> +<span class="sourceLineNo">1219</span><a name="line.1219"></a> +<span class="sourceLineNo">1220</span> // TODO: the assumption here is that if RSs are crashing while we are executing this<a name="line.1220"></a> +<span class="sourceLineNo">1221</span> // they will be handled by the SSH that are put in the ServerManager "queue".<a name="line.1221"></a> +<span class="sourceLineNo">1222</span> // we can integrate this a bit better.<a name="line.1222"></a> +<span class="sourceLineNo">1223</span> private boolean processofflineServersWithOnlineRegions() {<a name="line.1223"></a> +<span class="sourceLineNo">1224</span> boolean failover = !master.getServerManager().getDeadServers().isEmpty();<a name="line.1224"></a> +<span class="sourceLineNo">1225</span><a name="line.1225"></a> +<span class="sourceLineNo">1226</span> final Set<ServerName> offlineServersWithOnlineRegions = new HashSet<ServerName>();<a name="line.1226"></a> +<span class="sourceLineNo">1227</span> final ArrayList<RegionInfo> regionsToAssign = new ArrayList<RegionInfo>();<a name="line.1227"></a> +<span class="sourceLineNo">1228</span> long st, et;<a name="line.1228"></a> +<span class="sourceLineNo">1229</span><a name="line.1229"></a> +<span class="sourceLineNo">1230</span> st = System.currentTimeMillis();<a name="line.1230"></a> +<span class="sourceLineNo">1231</span> for (RegionStateNode regionNode: regionStates.getRegionNodes()) {<a name="line.1231"></a> +<span class="sourceLineNo">1232</span> if (regionNode.getState() == State.OPEN) {<a name="line.1232"></a> +<span class="sourceLineNo">1233</span> final ServerName serverName = regionNode.getRegionLocation();<a name="line.1233"></a> +<span class="sourceLineNo">1234</span> if (!master.getServerManager().isServerOnline(serverName)) {<a name="line.1234"></a> +<span class="sourceLineNo">1235</span> offlineServersWithOnlineRegions.add(serverName);<a name="line.1235"></a> +<span class="sourceLineNo">1236</span> }<a name="line.1236"></a> +<span class="sourceLineNo">1237</span> } else if (regionNode.getState() == State.OFFLINE) {<a name="line.1237"></a> +<span class="sourceLineNo">1238</span> if (isTableEnabled(regionNode.getTable())) {<a name="line.1238"></a> +<span class="sourceLineNo">1239</span> regionsToAssign.add(regionNode.getRegionInfo());<a name="line.1239"></a> +<span class="sourceLineNo">1240</span> }<a name="line.1240"></a> +<span class="sourceLineNo">1241</span> }<a name="line.1241"></a> +<span class="sourceLineNo">1242</span> }<a name="line.1242"></a> +<span class="sourceLineNo">1243</span> et = System.currentTimeMillis();<a name="line.1243"></a> +<span class="sourceLineNo">1244</span> LOG.info("[STEP-1] " + StringUtils.humanTimeDiff(et - st));<a name="line.1244"></a> +<span class="sourceLineNo">1245</span><a name="line.1245"></a> +<span class="sourceLineNo">1246</span> // kill servers with online regions<a name="line.1246"></a> +<span class="sourceLineNo">1247</span> st = System.currentTimeMillis();<a name="line.1247"></a> +<span class="sourceLineNo">1248</span> for (ServerName serverName: offlineServersWithOnlineRegions) {<a name="line.1248"></a> +<span class="sourceLineNo">1249</span> if (!master.getServerManager().isServerOnline(serverName)) {<a name="line.1249"></a> +<span class="sourceLineNo">1250</span> LOG.info("KILL RS hosting regions but not online " + serverName +<a name="line.1250"></a> +<span class="sourceLineNo">1251</span> " (master=" + master.getServerName() + ")");<a name="line.1251"></a> +<span class="sourceLineNo">1252</span> killRegionServer(serverName);<a name="line.1252"></a> +<span class="sourceLineNo">1253</span> }<a name="line.1253"></a> +<span class="sourceLineNo">1254</span> }<a name="line.1254"></a> +<span class="sourceLineNo">1255</span> et = System.currentTimeMillis();<a name="line.1255"></a> +<span class="sourceLineNo">1256</span> LOG.info("[STEP-2] " + StringUtils.humanTimeDiff(et - st));<a name="line.1256"></a> +<span class="sourceLineNo">1257</span><a name="line.1257"></a> +<span class="sourceLineNo">1258</span> setFailoverCleanupDone(true);<a name="line.1258"></a> <span class="sourceLineNo">1259</span><a name="line.1259"></a> -<span class="sourceLineNo">1260</span> return failover;<a name="line.1260"></a> -<span class="sourceLineNo">1261</span> }<a name="line.1261"></a> -<span class="sourceLineNo">1262</span><a name="line.1262"></a> -<span class="sourceLineNo">1263</span> /**<a name="line.1263"></a> -<span class="sourceLineNo">1264</span> * Used by ServerCrashProcedure to make sure AssignmentManager has completed<a name="line.1264"></a> -<span class="sourceLineNo">1265</span> * the failover cleanup before re-assigning regions of dead servers. So that<a name="line.1265"></a> -<span class="sourceLineNo">1266</span> * when re-assignment happens, AssignmentManager has proper region states.<a name="line.1266"></a> -<span class="sourceLineNo">1267</span> */<a name="line.1267"></a> -<span class="sourceLineNo">1268</span> public boolean isFailoverCleanupDone() {<a name="line.1268"></a> -<span class="sourceLineNo">1269</span> return failoverCleanupDone.isReady();<a name="line.1269"></a> +<span class="sourceLineNo">1260</span> // assign offline regions<a name="line.1260"></a> +<span class="sourceLineNo">1261</span> st = System.currentTimeMillis();<a name="line.1261"></a> +<span class="sourceLineNo">1262</span> for (RegionInfo regionInfo: getOrderedRegions(regionsToAssign)) {<a name="line.1262"></a> +<span class="sourceLineNo">1263</span> master.getMasterProcedureExecutor().submitProcedure(<a name="line.1263"></a> +<span class="sourceLineNo">1264</span> createAssignProcedure(regionInfo, false));<a name="line.1264"></a> +<span class="sourceLineNo">1265</span> }<a name="line.1265"></a> +<span class="sourceLineNo">1266</span> et = System.currentTimeMillis();<a name="line.1266"></a> +<span class="sourceLineNo">1267</span> LOG.info("[STEP-3] " + StringUtils.humanTimeDiff(et - st));<a name="line.1267"></a> +<span class="sourceLineNo">1268</span><a name="line.1268"></a> +<span class="sourceLineNo">1269</span> return failover;<a name="line.1269"></a> <span class="sourceLineNo">1270</span> }<a name="line.1270"></a> <span class="sourceLineNo">1271</span><a name="line.1271"></a> <span class="sourceLineNo">1272</span> /**<a name="line.1272"></a> -<span class="sourceLineNo">1273</span> * Used by ServerCrashProcedure tests verify the ability to suspend the<a name="line.1273"></a> -<span class="sourceLineNo">1274</span> * execution of the ServerCrashProcedure.<a name="line.1274"></a> -<span class="sourceLineNo">1275</span> */<a name="line.1275"></a> -<span class="sourceLineNo">1276</span> @VisibleForTesting<a name="line.1276"></a> -<span class="sourceLineNo">1277</span> public void setFailoverCleanupDone(final boolean b) {<a name="line.1277"></a> -<span class="sourceLineNo">1278</span> master.getMasterProcedureExecutor().getEnvironment()<a name="line.1278"></a> -<span class="sourceLineNo">1279</span> .setEventReady(failoverCleanupDone, b);<a name="line.1279"></a> -<span class="sourceLineNo">1280</span> }<a name="line.1280"></a> -<span class="sourceLineNo">1281</span><a name="line.1281"></a> -<span class="sourceLineNo">1282</span> public ProcedureEvent getFailoverCleanupEvent() {<a name="line.1282"></a> -<span class="sourceLineNo">1283</span> return failoverCleanupDone;<a name="line.1283"></a> -<span class="sourceLineNo">1284</span> }<a name="line.1284"></a> -<span class="sourceLineNo">1285</span><a name="line.1285"></a> -<span class="sourceLineNo">1286</span> /**<a name="line.1286"></a> -<span class="sourceLineNo">1287</span> * Used to check if the failover cleanup is done.<a name="line.1287"></a> -<span class="sourceLineNo">1288</span> * if not we throw PleaseHoldException since we are rebuilding the RegionStates<a name="line.1288"></a> -<span class="sourceLineNo">1289</span> * @param hri region to check if it is already rebuild<a name="line.1289"></a> -<span class="sourceLineNo">1290</span> * @throws PleaseHoldException if the failover cleanup is not completed<a name="line.1290"></a> -<span class="sourceLineNo">1291</span> */<a name="line.1291"></a> -<span class="sourceLineNo">1292</span> private void checkFailoverCleanupCompleted(final RegionInfo hri) throws PleaseHoldException {<a name="line.1292"></a> -<span class="sourceLineNo">1293</span> if (!isRunning()) {<a name="line.1293"></a> -<span class="sourceLineNo">1294</span> throw new PleaseHoldException("AssignmentManager not running");<a name="line.1294"></a> -<span class="sourceLineNo">1295</span> }<a name="line.1295"></a> -<span class="sourceLineNo">1296</span><a name="line.1296"></a> -<span class="sourceLineNo">1297</span> // TODO: can we avoid throwing an exception if hri is already loaded?<a name="line.1297"></a> -<span class="sourceLineNo">1298</span> // at the moment we bypass only meta<a name="line.1298"></a> -<span class="sourceLineNo">1299</span> boolean meta = isMetaRegion(hri);<a name="line.1299"></a> -<span class="sourceLineNo">1300</span> boolean cleanup = isFailoverCleanupDone();<a name="line.1300"></a> -<span class="sourceLineNo">1301</span> if (!isMetaRegion(hri) && !isFailoverCleanupDone()) {<a name="line.1301"></a> -<span class="sourceLineNo">1302</span> String msg = "Master not fully online; hbase:meta=" + meta + ", failoverCleanup=" + cleanup;<a name="line.1302"></a> -<span class="sourceLineNo">1303</span> throw new PleaseHoldException(msg);<a name="line.1303"></a> +<span class="sourceLineNo">1273</span> * Used by ServerCrashProcedure to make sure AssignmentManager has completed<a name="line.1273"></a> +<span class="sourceLineNo">1274</span> * the failover cleanup before re-assigning regions of dead servers. So that<a name="line.1274"></a> +<span class="sourceLineNo">1275</span> * when re-assignment happens, AssignmentManager has proper region states.<a name="line.1275"></a> +<span class="sourceLineNo">1276</span> */<a name="line.1276"></a> +<span class="sourceLineNo">1277</span> public boolean isFailoverCleanupDone() {<a name="line.1277"></a> +<span class="sourceLineNo">1278</span> return failoverCleanupDone.isReady();<a name="line.1278"></a> +<span class="sourceLineNo">1279</span> }<a name="line.1279"></a> +<span class="sourceLineNo">1280</span><a name="line.1280"></a> +<span class="sourceLineNo">1281</span> /**<a name="line.1281"></a> +<span class="sourceLineNo">1282</span> * Used by ServerCrashProcedure tests verify the ability to suspend the<a name="line.1282"></a> +<span class="sourceLineNo">1283</span> * execution of the ServerCrashProcedure.<a name="line.1283"></a> +<span class="sourceLineNo">1284</span> */<a name="line.1284"></a> +<span class="sourceLineNo">1285</span> @VisibleForTesting<a name="line.1285"></a> +<span class="sourceLineNo">1286</span> public void setFailoverCleanupDone(final boolean b) {<a name="line.1286"></a> +<span class="sourceLineNo">1287</span> master.getMasterProcedureExecutor().getEnvironment()<a name="line.1287"></a> +<span class="sourceLineNo">1288</span> .setEventReady(failoverCleanupDone, b);<a name="line.1288"></a> +<span class="sourceLineNo">1289</span> }<a name="line.1289"></a> +<span class="sourceLineNo">1290</span><a name="line.1290"></a> +<span class="sourceLineNo">1291</span> public ProcedureEvent getFailoverCleanupEvent() {<a name="line.1291"></a> +<span class="sourceLineNo">1292</span> return failoverCleanupDone;<a name="line.1292"></a> +<span class="sourceLineNo">1293</span> }<a name="line.1293"></a> +<span class="sourceLineNo">1294</span><a name="line.1294"></a> +<span class="sourceLineNo">1295</span> /**<a name="line.1295"></a> +<span class="sourceLineNo">1296</span> * Used to check if the failover cleanup is done.<a name="line.1296"></a> +<span class="sourceLineNo">1297</span> * if not we throw PleaseHoldException since we are rebuilding the RegionStates<a name="line.1297"></a> +<span class="sourceLineNo">1298</span> * @param hri region to check if it is already rebuild<a name="line.1298"></a> +<span class="sourceLineNo">1299</span> * @throws PleaseHoldException if the failover cleanup is not completed<a name="line.1299"></a> +<span class="sourceLineNo">1300</span> */<a name="line.1300"></a> +<span class="sourceLineNo">1301</span> private void checkFailoverCleanupCompleted(final RegionInfo hri) throws PleaseHoldException {<a name="line.1301"></a> +<span class="sourceLineNo">1302</span> if (!isRunning()) {<a name="line.1302"></a> +<span class="sourceLineNo">1303</span> throw new PleaseHoldException("AssignmentManager not running");<a name="line.1303"></a> <span class="sourceLineNo">1304</span> }<a name="line.1304"></a> -<span class="sourceLineNo">1305</span> }<a name="line.1305"></a> -<span class="sourceLineNo">1306</span><a name="line.1306"></a> -<span class="sourceLineNo">1307</span> // ============================================================================================<a name="line.1307"></a> -<span class="sourceLineNo">1308</span> // TODO: Metrics<a name="line.1308"></a> -<span class="sourceLineNo">1309</span> // ============================================================================================<a name="line.1309"></a> -<span class="sourceLineNo">1310</span> public int getNumRegionsOpened() {<a name="line.1310"></a> -<span class="sourceLineNo">1311</span> // TODO: Used by TestRegionPlacement.java and assume monotonically increasing value<a name="line.1311"></a> -<span class="sourceLineNo">1312</span> return 0;<a name="line.1312"></a> -<span class="sourceLineNo">1313</span> }<a name="line.1313"></a> -<span class="sourceLineNo">1314</span><a name="line.1314"></a> -<span class="sourceLineNo">1315</span> public void submitServerCrash(final ServerName serverName, final boolean shouldSplitWal) {<a name="line.1315"></a> -<span class="sourceLineNo">1316</span> boolean carryingMeta = master.getAssignmentManager().isCarryingMeta(serverName);<a name="line.1316"></a> -<span class="sourceLineNo">1317</span> ProcedureExecutor<MasterProcedureEnv> procExec = this.master.getMasterProcedureExecutor();<a name="line.1317"></a> -<span class="sourceLineNo">1318</span> procExec.submitProcedure(new ServerCrashProcedure(procExec.getEnvironment(), serverName,<a name="line.1318"></a> -<span class="sourceLineNo">1319</span> shouldSplitWal, carryingMeta));<a name="line.1319"></a> -<span class="sourceLineNo">1320</span> LOG.debug("Added=" + serverName +<a name="line.1320"></a> -<span class="sourceLineNo">1321</span> " to dead servers, submitted shutdown handler to be executed meta=" + carryingMeta);<a name="line.1321"></a> +<span class="sourceLineNo">1305</span><a name="line.1305"></a> +<span class="sourceLineNo">1306</span> // TODO: can we avoid throwing an exception if hri is already loaded?<a name="line.1306"></a> +<span class="sourceLineNo">1307</span> // at the moment we bypass only meta<a name="line.1307"></a> +<span class="sourceLineNo">1308</span> boolean meta = isMetaRegion(hri);<a name="line.1308"></a> +<span class="sourceLineNo">1309</span> boolean cleanup = isFailoverCleanupDone();<a name="line.1309"></a> +<span class="sourceLineNo">1310</span> if (!isMetaRegion(hri) && !isFailoverCleanupDone()) {<a name="line.1310"></a> +<span class="sourceLineNo">1311</span> String msg = "Master not fully online; hbase:meta=" + meta + ", failoverCleanup=" + cleanup;<a name="line.1311"></a> +<span class="sourceLineNo">1312</span> throw new PleaseHoldException(msg);<a name="line.1312"></a> +<span class="sourceLineNo">1313</span> }<a name="line.1313"></a> +<span class="sourceLineNo">1314</span> }<a name="line.1314"></a> +<span class="sourceLineNo">1315</span><a name="line.1315"></a> +<span class="sourceLineNo">1316</span> // ============================================================================================<a name="line.1316"></a> +<span class="sourceLineNo">1317</span> // TODO: Metrics<a name="line.1317"></a> +<span class="sourceLineNo">1318</span> // ============================================================================================<a name="line.1318"></a> +<span class="sourceLineNo">1319</span> public int getNumRegionsOpened() {<a name="line.1319"></a> +<span class="sourceLineNo">1320</span> // TODO: Used by TestRegionPlacement.java and assume monotonically increasing value<a name="line.1320"></a> +<span class="sourceLineNo">1321</span> return 0;<a name="line.1321"></a> <span class="sourceLineNo">1322</span> }<a name="line.1322"></a> <span class="sourceLineNo">1323</span><a name="line.1323"></a> -<span class="sourceLineNo">1324</span> public void offlineRegion(final RegionInfo regionInfo) {<a name="line.1324"></a> -<span class="sourceLineNo">1325</span> // TODO used by MasterRpcServices ServerCrashProcedure<a name="line.1325"></a> -<span class="sourceLineNo">1326</span> final RegionStateNode node = regionStates.getRegionNode(regionInfo);<a name="line.1326"></a> -<span class="sourceLineNo">1327</span> if (node != null) node.offline();<a name="line.1327"></a> -<span class="sourceLineNo">1328</span> }<a name="line.1328"></a> -<span class="sourceLineNo">1329</span><a name="line.1329"></a> -<span class="sourceLineNo">1330</span> public void onlineRegion(final RegionInfo regionInfo, final ServerName serverName) {<a name="line.1330"></a> -<span class="sourceLineNo">1331</span> // TODO used by TestSplitTransactionOnCluster.java<a name="line.1331"></a> -<span class="sourceLineNo">1332</span> }<a name="line.1332"></a> -<span class="sourceLineNo">1333</span><a name="line.1333"></a> -<span class="sourceLineNo">1334</span> public Map<ServerName, List<RegionInfo>> getSnapShotOfAssignment(<a name="line.1334"></a> -<span class="sourceLineNo">1335</span> final Collection<RegionInfo> regions) {<a name="line.1335"></a> -<span class="sourceLineNo">1336</span> return regionStates.getSnapShotOfAssignment(regions);<a name="line.1336"></a> +<span class="sourceLineNo">1324</span> public void submitServerCrash(final ServerName serverName, final boolean shouldSplitWal) {<a name="line.1324"></a> +<span class="sourceLineNo">1325</span> boolean carryingMeta = master.getAssignmentManager().isCarryingMeta(serverName);<a name="line.1325"></a> +<span class="sourceLineNo">1326</span> ProcedureExecutor<MasterProcedureEnv> procExec = this.master.getMasterProcedureExecutor();<a name="line.1326"></a> +<span class="sourceLineNo">1327</span> procExec.submitProcedure(new ServerCrashProcedure(procExec.getEnvironment(), serverName,<a name="line.1327"></a> +<span class="sourceLineNo">1328</span> shouldSplitWal, carryingMeta));<a name="line.1328"></a> +<span class="sourceLineNo">1329</span> LOG.debug("Added=" + serverName +<a name="line.1329"></a> +<span class="sourceLineNo">1330</span> " to dead servers, submitted shutdown handler to be executed meta=" + carryingMeta);<a name="line.1330"></a> +<span class="sourceLineNo">1331</span> }<a name="line.1331"></a> +<span class="sourceLineNo">1332</span><a name="line.1332"></a> +<span class="sourceLineNo">1333</span> public void offlineRegion(final RegionInfo regionInfo) {<a name="line.1333"></a> +<span class="sourceLineNo">1334</span> // TODO used by MasterRpcServices ServerCrashProcedure<a name="line.1334"></a> +<span class="sourceLineNo">1335</span> final RegionStateNode node = regionStates.getRegionNode(regionInfo);<a name="line.1335"></a> +<span class="sourceLineNo">1336</span> if (node != null) node.offline();<a name="line.1336"></a> <span class="sourceLineNo">1337</span> }<a name="line.1337"></a> <span class="sourceLineNo">1338</span><a name="line.1338"></a> -<span class="sourceLineNo">1339</span> // ============================================================================================<a name="line.1339"></a> -<span class="sourceLineNo">1340</span> // TODO: UTILS/HELPERS?<a name="line.1340"></a> -<span class="sourceLineNo">1341</span> // ============================================================================================<a name="line.1341"></a> -<span class="sourceLineNo">1342</span> /**<a name="line.1342"></a> -<span class="sourceLineNo">1343</span> * Used by the client (via master) to identify if all regions have the schema updates<a name="line.1343"></a> -<span class="sourceLineNo">1344</span> *<a name="line.1344"></a> -<span class="sourceLineNo">1345</span> * @param tableName<a name="line.1345"></a> -<span class="sourceLineNo">1346</span> * @return Pair indicating the status of the alter command (pending/total)<a name="line.1346"></a> -<span class="sourceLineNo">1347</span> * @throws IOException<a name="line.1347"></a> -<span class="sourceLineNo">1348</span> */<a name="line.1348"></a> -<span class="sourceLineNo">1349</span> public Pair<Integer, Integer> getReopenStatus(TableName tableName) {<a name="line.1349"></a> -<span class="sourceLineNo">1350</span> if (isTableDisabled(tableName)) return new Pair<Integer, Integer>(0, 0);<a name="line.1350"></a> -<span class="sourceLineNo">1351</span><a name="line.1351"></a> -<span class="sourceLineNo">1352</span> final List<RegionState> states = regionStates.getTableRegionStates(tableName);<a name="line.1352"></a> -<span class="sourceLineNo">1353</span> int ritCount = 0;<a name="line.1353"></a> -<span class="sourceLineNo">1354</span> for (RegionState regionState: states) {<a name="line.1354"></a> -<span class="sourceLineNo">1355</span> if (!regionState.isOpened()) ritCount++;<a name="line.1355"></a> -<span class="sourceLineNo">1356</span> }<a name="line.1356"></a> -<span class="sourceLineNo">1357</span> return new Pair<Integer, Integer>(ritCount, states.size());<a name="line.1357"></a> -<span class="sourceLineNo">1358</span> }<a name="line.1358"></a> -<span class="sourceLineNo">1359</span><a name="line.1359"></a> -<span class="sourceLineNo">1360</span> /**<a name="line.1360"></a> -<span class="sourceLineNo">1361</span> * Used when assign regions, this method will put system regions in<a name="line.1361"></a> -<span class="sourceLineNo">1362</span> * front of user regions<a name="line.1362"></a> -<span class="sourceLineNo">1363</span> * @param regions<a name="line.1363"></a> -<span class="sourceLineNo">1364</span> * @return A list of regions with system regions at front<a name="line.1364"></a> -<span class="sourceLineNo">1365</span> */<a name="line.1365"></a> -<span class="sourceLineNo">1366</span> public List<RegionInfo> getOrderedRegions(<a name="line.1366"></a> -<span class="sourceLineNo">1367</span> final List<RegionInfo> regions) {<a name="line.1367"></a> -<span class="sourceLineNo">1368</span> if (regions == null) return Collections.emptyList();<a name="line.1368"></a> -<span class="sourceLineNo">1369</span><a name="line.1369"></a> -<span class="sourceLineNo">1370</span> List<RegionInfo> systemList = new ArrayList<>();<a name="line.1370"></a> -<span class="sourceLineNo">1371</span> List<RegionInfo> userList = new ArrayList<>();<a name="line.1371"></a> -<span class="sourceLineNo">1372</span> for (RegionInfo hri : regions) {<a name="line.1372"></a> -<span class="sourceLineNo">1373</span> if (hri.getTable().isSystemTable()) systemList.add(hri);<a name="line.1373"></a> -<span class="sourceLineNo">1374</span> else userList.add(hri);<a name="line.1374"></a> -<span class="sourceLineNo">1375</span> }<a name="line.1375"></a> -<span class="sourceLineNo">1376</span> // Append userList to systemList<a name="line.1376"></a> -<span class="sourceLineNo">1377</span> systemList.addAll(userList);<a name="line.1377"></a> -<span class="sourceLineNo">1378</span> return systemList;<a name="line.1378"></a> -<span class="sourceLineNo">1379</span> }<a name="line.1379"></a> -<span class="sourceLineNo">1380</span><a name="line.1380"></a> -<span class="sourceLineNo">1381</span> // ============================================================================================<a name="line.1381"></a> -<span class="sourceLineNo">1382</span> // TODO: Region State In Transition<a name="line.1382"></a> -<span class="sourceLineNo">1383</span> // ============================================================================================<a name="line.1383"></a> -<span class="sourceLineNo">1384</span> protected boolean addRegionInTransition(final RegionStateNode regionNode,<a name="line.1384"></a> -<span class="sourceLineNo">1385</span> final RegionTransitionProcedure procedure) {<a name="line.1385"></a> -<span class="sourceLineNo">1386</span> return regionStates.addRegionInTransition(regionNode, procedure);<a name="line.1386"></a> -<span class="sourceLineNo">1387</span> }<a name="line.1387"></a> -<span class="sourceLineNo">1388</span><a name="line.1388"></a> -<span class="sourceLineNo">1389</span> protected void removeRegionInTransition(final RegionStateNode regionNode,<a name="line.1389"></a> -<span class="sourceLineNo">1390</span> final RegionTransitionProcedure procedure) {<a name="line.1390"></a> -<span class="sourceLineNo">1391</span> regionStates.removeRegionInTransition(regionNode, procedure);<a name="line.1391"></a> -<span class="sourceLineNo">1392</span> }<a name="line.1392"></a> -<span class="sourceLineNo">1393</span><a name="line.1393"></a> -<span class="sourceLineNo">1394</span> public boolean hasRegionsInTransition() {<a name="line.1394"></a> -<span class="sourceLineNo">1395</span> return regionStates.hasRegionsInTransition();<a name="line.1395"></a> +<span class="sourceLineNo">1339</span> public void onlineRegion(final RegionInfo regionInfo, final ServerName serverName) {<a name="line.1339"></a> +<span class="sourceLineNo">1340</span> // TODO used by TestSplitTransactionOnCluster.java<a name="line.1340"></a> +<span class="sourceLineNo">1341</span> }<a name="line.1341"></a> +<span class="sourceLineNo">1342</span><a name="line.1342"></a> +<span class="sourceLineNo">1343</span> public Map<ServerName, List<RegionInfo>> getSnapShotOfAssignment(<a name="line.1343"></a> +<span class="sourceLineNo">1344</span> final Collection<RegionInfo> regions) {<a name="line.1344"></a> +<span class="sourceLineNo">1345</span> return regionStates.getSnapShotOfAssignment(regions);<a name="line.1345"></a> +<span class="sourceLineNo">1346</span> }<a name="line.1346"></a> +<span class="sourceLineNo">1347</span><a name="line.1347"></a> +<span class="sourceLineNo">1348</span> // ============================================================================================<a name="line.1348"></a> +<span class="sourceLineNo">1349</span> // TODO: UTILS/HELPERS?<a name="line.1349"></a> +<span class="sourceLineNo">1350</span> // ============================================================================================<a name="line.1350"></a> +<span class="sourceLineNo">1351</span> /**<a name="line.1351"></a> +<span class="sourceLineNo">1352</span> * Used by the client (via master) to identify if all regions have the schema updates<a name="line.1352"></a> +<span class="sourceLineNo">1353</span> *<a name="line.1353"></a> +<span class="sourceLineNo">1354</span> * @param tableName<a name="line.1354"></a> +<span class="sourceLineNo">1355</span> * @return Pair indicating the status of the alter command (pending/total)<a name="line.1355"></a> +<span class="sourceLineNo">1356</span> * @throws IOException<a name="line.1356"></a> +<span class="sourceLineNo">1357</span> */<a name="line.1357"></a> +<span class="sourceLineNo">1358</span> public Pair<Integer, Integer> getReopenStatus(TableName tableName) {<a name="line.1358"></a> +<span class="sourceLineNo">1359</span> if (isTableDisabled(tableName)) return new Pair<Integer, Integer>(0, 0);<a name="line.1359"></a> +<span class="sourceLineNo">1360</span><a name="line.1360"></a> +<span class="sourceLineNo">1361</span> final List<RegionState> states = regionStates.getTableRegionStates(tableName);<a name="line.1361"></a> +<span class="sourceLineNo">1362</span> int ritCount = 0;<a name="line.1362"></a> +<span class="sourceLineNo">1363</span> for (RegionState regionState: states) {<a name="line.1363"></a> +<span class="sourceLineNo">1364</span> if (!regionState.isOpened()) ritCount++;<a name="line.1364"></a> +<span class="sourceLineNo">1365</span> }<a name="line.1365"></a> +<span class="sourceLineNo">1366</span> return new Pair<Integer, Integer>(ritCount, states.size());<a name="line.1366"></a> +<span class="sourceLineNo">1367</span> }<a name="line.1367"></a> +<span class="sourceLineNo">1368</span><a name="line.1368"></a> +<span class="sourceLineNo">1369</span> /**<a name="line.1369"></a> +<span class="sourceLineNo">1370</span> * Used when assign regions, this method will put system regions in<a name="line.1370"></a> +<span class="sourceLineNo">1371</span> * front of user regions<a name="line.1371"></a> +<span class="sourceLineNo">1372</span> * @param regions<a name="line.1372"></a> +<span class="sourceLineNo">1373</span> * @return A list of regions with system regions at front<a name="line.1373"></a> +<span class="sourceLineNo">1374</span> */<a name="line.1374"></a> +<span class="sourceLineNo">1375</span> public List<RegionInfo> getOrderedRegions(<a name="line.1375"></a> +<span class="sourceLineNo">1376</span> final List<RegionInfo> regions) {<a name="line.1376"></a> +<span class="sourceLineNo">1377</span> if (regions == null) return Collections.emptyList();<a name="line.1377"></a> +<span class="sourceLineNo">1378</span><a name="line.1378"></a> +<span class="sourceLineNo">1379</span> List<RegionInfo> systemList = new ArrayList<>();<a name="line.1379"></a> +<span class="sourceLineNo">1380</span> List<RegionInfo> userList = new ArrayList<>();<a name="line.1380"></a> +<span class="sourceLineNo">1381</span> for (RegionInfo hri : regions) {<a name="line.1381"></a> +<span class="sourceLineNo">1382</span> if (hri.getTable().isSystemTable()) systemList.add(hri);<a name="line.1382"></a> +<span class="sourceLineNo">1383</span> else userList.add(hri);<a name="line.1383"></a> +<span class="sourceLineNo">1384</span> }<a name="line.1384"></a> +<span class="sourceLineNo">1385</span> // Append userList to systemList<a name="line.1385"></a> +<span class="sourceLineNo">1386</span> systemList.addAll(userList);<a name="line.1386"></a> +<span class="sourceLineNo">1387</span> return systemList;<a name="line.1387"></a> +<span class="sourceLineNo">1388</span> }<a name="line.1388"></a> +<span class="sourceLineNo">1389</span><a name="line.1389"></a> +<span class="sourceLineNo">1390</span> // ============================================================================================<a name="line.1390"></a> +<span class="sourceLineNo">1391</span> // TODO: Region State In Transition<a name="line.1391"></a> +<span class="sourceLineNo">1392</span> // ============================================================================================<a name="line.1392"></a> +<span class="sourceLineNo">1393</span> protected boolean addRegionInTransition(final RegionStateNode regionNode,<a name="line.1393"></a> +<span class="sourceLineNo">1394</span> final RegionTransitionProcedure procedure) {<a name="line.1394"></a> +<span class="sourceLineNo">1395</span> return regionStates.addRegionInTransition(regionNode, procedure);<a name="line.1395"></a> <span class="sourceLineNo">1396</span> }<a name="line.1396"></a> <span class="sourceLineNo">1397</span><a name="line.1397"></a> -<span class="sourceLineNo">1398</span> public List<RegionStateNode> getRegionsInTransition() {<a name="line.1398"></a> -<span class="sourceLineNo">1399</span> return regionStates.getRegionsInTransition();<a name="line.1399"></a> -<span class="sourceLineNo">1400</span> }<a name="line.1400"></a> -<span class="sourceLineNo">1401</span><a name="line.1401"></a> -<span class="sourceLineNo">1402</span> public List<RegionInfo> getAssignedRegions() {<a name="line.1402"></a> -<span class="sourceLineNo">1403</span> return regionStates.getAssignedRegions();<a name="line.1403"></a> -<span class="sourceLineNo">1404</span> }<a name="line.1404"></a> -<span class="sourceLineNo">1405</span><a name="line.1405"></a> -<span class="sourceLineNo">1406</span> public RegionInfo getRegionInfo(final byte[] regionName) {<a name="line.1406"></a> -<span class="sourceLineNo">1407</span> final RegionStateNode regionState = regionStates.getRegionNodeFromName(regionName);<a name="line.1407"></a> -<span class="sourceLineNo">1408</span> return regionState != null ? regionState.getRegionInfo() : null;<a name="line.1408"></a> +<span class="sourceLineNo">1398</span> protected void removeRegionInTransition(final RegionStateNode regionNode,<a name="line.1398"></a> +<span class="sourceLineNo">1399</span> final RegionTransitionProcedure procedure) {<a name="line.1399"></a> +<span class="sourceLineNo">1400</span> regionStates.removeRegionInTransition(regionNode, procedure);<a name="line.1400"></a> +<span class="sourceLineNo">1401</span> }<a name="line.1401"></a> +<span class="sourceLineNo">1402</span><a name="line.1402"></a> +<span class="sourceLineNo">1403</span> public boolean hasRegionsInTransition() {<a name="line.1403"></a> +<span class="sourceLineNo">1404</span> return regionStates.hasRegionsInTransition();<a name="line.1404"></a> +<span class="sourceLineNo">1405</span> }<a name="line.1405"></a> +<span class="sourceLineNo">1406</span><a name="line.1406"></a> +<span class="sourceLineNo">1407</span> public List<RegionStateNode> getRegionsInTransition() {<a name="line.1407"></a> +<span class="sourceLineNo">1408</span> return regionStates.getRegionsInTransition();<a name="line.1408"></a> <span class="sourceLineNo">1409</span> }<a name="line.1409"></a> <span class="sourceLineNo">1410</span><a name="line.1410"></a> -<span class="sourceLineNo">1411</span> // ============================================================================================<a name="line.1411"></a> -<span class="sourceLineNo">1412</span> // TODO: Region Status update<a name="line.1412"></a> -<span class="sourceLineNo">1413</span> // ============================================================================================<a name="line.1413"></a> -<span class="sourceLineNo">1414</span> private void sendRegionOpenedNotification(final RegionInfo regionInfo,<a name="line.1414"></a> -<span class="sourceLineNo">1415</span> final ServerName serverName) {<a name="line.1415"></a> -<span class="sourceLineNo">1416</span> getBalancer().regionOnline(regionInfo, serverName);<a name="line.1416"></a> -<span class="sourceLineNo">1417</span> if (!this.listeners.isEmpty()) {<a name="line.1417"></a> -<span class="sourceLineNo">1418</span> for (AssignmentListener listener : this.listeners) {<a name="line.1418"></a> -<span class="sourceLineNo">1419</span> listener.regionOpened(regionInfo, serverName);<a name="line.1419"></a> -<span class="sourceLineNo">1420</span> }<a name="line.1420"></a> -<span class="sourceLineNo">1421</span> }<a name="line.1421"></a> -<span class="sourceLineNo">1422</span> }<a name="line.1422"></a> -<span class="sourceLineNo">1423</span><a name="line.1423"></a> -<span class="sourceLineNo">1424</span> private void sendRegionClosedNotification(final RegionInfo regionInfo) {<a name="line.1424"></a> -<span class="sourceLineNo">1425</span> getBalancer().regionOffline(regionInfo);<a name="line.1425"></a> +<span class="sourceLineNo">1411</span> public List<RegionInfo> getAssignedRegions() {<a name="line.1411"></a> +<span class="sourceLineNo">1412</span> return regionStates.getAssignedRegions();<a name="line.1412"></a> +<span class="sourceLineNo">1413</span> }<a name="line.1413"></a> +<span class="sourceLineNo">1414</span><a name="line.1414"></a> +<span class="sourceLineNo">1415</span> public RegionInfo getRegionInfo(final byte[] regionName) {<a name="line.1415"></a> +<span class="sourceLineNo">1416</span> final RegionStateNode regionState = regionStates.getRegionNodeFromName(regionName);<a name="line.1416"></a> +<span class="sourceLineNo">1417</span> return regionState != null ? regionState.getRegionInfo() : null;<a name="line.1417"></a> +<span class="sourceLineNo">1418</span> }<a name="line.1418"></a> +<span class="sourceLineNo">1419</span><a name="line.1419"></a> +<span class="sourceLineNo">1420</span> // ============================================================================================<a name="line.1420"></a> +<span class="sourceLineNo">1421</span> // TODO: Region Status update<a name="line.1421"></a> +<span class="sourceLineNo">1422</span> // ============================================================================================<a name="line.1422"></a> +<span class="sourceLineNo">1423</span> private void sendRegionOpenedNotification(final RegionInfo regionInfo,<a name="line.1423"></a> +<span class="sourceLineNo">1424</span> final ServerName serverName) {<a name="line.1424"></a> +<span class="sourceLineNo">1425</span> getBalancer().regionOnline(regionInfo, serverName);<a name="line.1425"></a> <span class="sourceLineNo">1426</span> if (!this.listeners.isEmpty()) {<a name="line.1426"></a> <span class="sourceLineNo">1427</span> for (AssignmentListener listener : this.listeners) {<a name="line.1427"></a> -<span class="sourceLineNo">1428</span> listener.regionClosed(regionInfo);<a name="line.1428"></a> +<span class="sourceLineNo">1428</span> listener.regionOpened(regionInfo, serverName);<a name="line.1428"></a> <span class="sourceLineNo">1429</span> }<a name="line.1429"></a> <span class="sourceLineNo">1430</span> }<a name="line.1430"></a> <span class="sourceLineNo">1431</span> }<a name="line.1431"></a> <span class="sourceLineNo">1432</span><a name="line.1432"></a> -<span class="sourceLineNo">1433</span> public void markRegionAsOpening(final RegionStateNode regionNode) throws IOException {<a name="line.1433"></a> -<span class="sourceLineNo">1434</span> synchronized (regionNode) {<a name="line.1434"></a> -<span class="sourceLineNo">1435</span> State state = regionNode.transitionState(State.OPENING, RegionStates.STATES_EXPECTED_ON_OPEN);<a name="line.1435"></a> -<span class="sourceLineNo">1436</span> regionStates.addRegionToServer(regionNode.getRegionLocation(), regionNode);<a name="line.1436"></a> -<span class="sourceLineNo">1437</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1437"></a> -<span class="sourceLineNo">1438</span> regionNode.getRegionLocation(), regionNode.getLastHost(), HConstants.NO_SEQNUM,<a name="line.1438"></a> -<span class="sourceLineNo">1439</span> regionNode.getProcedure().getProcId());<a name="line.1439"></a> -<span class="sourceLineNo">1440</span> }<a name="line.1440"></a> +<span class="sourceLineNo">1433</span> private void sendRegionClosedNotification(final RegionInfo regionInfo) {<a name="line.1433"></a> +<span class="sourceLineNo">1434</span> getBalancer().regionOffline(regionInfo);<a name="line.1434"></a> +<span class="sourceLineNo">1435</span> if (!this.listeners.isEmpty()) {<a name="line.1435"></a> +<span class="sourceLineNo">1436</span> for (AssignmentListener listener : this.listeners) {<a name="line.1436"></a> +<span class="sourceLineNo">1437</span> listener.regionClosed(regionInfo);<a name="line.1437"></a> +<span class="sourceLineNo">1438</span> }<a name="line.1438"></a> +<span class="sourceLineNo">1439</span> }<a name="line.1439"></a> +<span class="sourceLineNo">1440</span> }<a name="line.1440"></a> <span class="sourceLineNo">1441</span><a name="line.1441"></a> -<span class="sourceLineNo">1442</span> // update the operation count metrics<a name="line.1442"></a> -<span class="sourceLineNo">1443</span> metrics.incrementOperationCounter();<a name="line.1443"></a> -<span class="sourceLineNo">1444</span> }<a name="line.1444"></a> -<span class="sourceLineNo">1445</span><a name="line.1445"></a> -<span class="sourceLineNo">1446</span> public void undoRegionAsOpening(final RegionStateNode regionNode) {<a name="line.1446"></a> -<span class="sourceLineNo">1447</span> boolean opening = false;<a name="line.1447"></a> -<span class="sourceLineNo">1448</span> synchronized (regionNode) {<a name="line.1448"></a> -<span class="sourceLineNo">1449</span> if (regionNode.isInState(State.OPENING)) {<a name="line.1449"></a> -<span class="sourceLineNo">1450</span> opening = true;<a name="line.1450"></a> -<span class="sourceLineNo">1451</span> regionStates.removeRegionFromServer(regionNode.getRegionLocation(), regionNode);<a name="line.1451"></a> -<span class="sourceLineNo">1452</span> }<a name="line.1452"></a> -<span class="sourceLineNo">1453</span> // Should we update hbase:meta?<a name="line.1453"></a> -<span class="sourceLineNo">1454</span> }<a name="line.1454"></a> -<span class="sourceLineNo">1455</span> if (opening) {<a name="line.1455"></a> -<span class="sourceLineNo">1456</span> // TODO: Metrics. Do opposite of metrics.incrementOperationCounter();<a name="line.1456"></a> -<span class="sourceLineNo">1457</span> }<a name="line.1457"></a> -<span class="sourceLineNo">1458</span> }<a name="line.1458"></a> -<span class="sourceLineNo">1459</span><a name="line.1459"></a> -<span class="sourceLineNo">1460</span> public void markRegionAsOpened(final RegionStateNode regionNode) throws IOException {<a name="line.1460"></a> -<span class="sourceLineNo">1461</span> final RegionInfo hri = regionNode.getRegionInfo();<a name="line.1461"></a> -<span class="sourceLineNo">1462</span> synchronized (regionNode) {<a name="line.1462"></a> -<span class="sourceLineNo">1463</span> State state = regionNode.transitionState(State.OPEN, RegionStates.STATES_EXPECTED_ON_OPEN);<a name="line.1463"></a> -<span class="sourceLineNo">1464</span> if (isMetaRegion(hri)) {<a name="line.1464"></a> -<span class="sourceLineNo">1465</span> master.getTableStateManager().setTableState(TableName.META_TABLE_NAME,<a name="line.1465"></a> -<span class="sourceLineNo">1466</span> TableState.State.ENABLED);<a name="line.1466"></a> -<span class="sourceLineNo">1467</span> setMetaInitialized(hri, true);<a name="line.1467"></a> -<span class="sourceLineNo">1468</span> }<a name="line.1468"></a> -<span class="sourceLineNo">1469</span> regionStates.addRegionToServer(regionNode.getRegionLocation(), regionNode);<a name="line.1469"></a> -<span class="sourceLineNo">1470</span> // TODO: OPENING Updates hbase:meta too... we need to do both here and there?<a name="line.1470"></a> -<span class="sourceLineNo">1471</span> // That is a lot of hbase:meta writing.<a name="line.1471"></a> -<span class="sourceLineNo">1472</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1472"></a> -<span class="sourceLineNo">1473</span> regionNode.getRegionLocation(), regionNode.getLastHost(), regionNode.getOpenSeqNum(),<a name="line.1473"></a> -<span class="sourceLineNo">1474</span> regionNode.getProcedure().getProcId());<a name="line.1474"></a> -<span class="sourceLineNo">1475</span> sendRegionOpenedNotification(hri, regionNode.getRegionLocation());<a name="line.1475"></a> -<span class="sourceLineNo">1476</span> }<a name="line.1476"></a> -<span class="sourceLineNo">1477</span> }<a name="line.1477"></a> -<span class="sourceLineNo">1478</span><a name="line.1478"></a> -<span class="sourceLineNo">1479</span> public void markRegionAsClosing(final RegionStateNode regionNode) throws IOException {<a name="line.1479"></a> -<span class="sourceLineNo">1480</span> final RegionInfo hri = regionNode.getRegionInfo();<a name="line.1480"></a> -<span class="sourceLineNo">1481</span> synchronized (regionNode) {<a name="line.1481"></a> -<span class="sourceLineNo">1482</span> State state = regionNode.transitionState(State.CLOSING, RegionStates.STATES_EXPECTED_ON_CLOSE);<a name="line.1482"></a> -<span class="sourceLineNo">1483</span> // Set meta has not initialized early. so people trying to create/edit tables will wait<a name="line.1483"></a> -<span class="sourceLineNo">1484</span> if (isMetaRegion(hri)) {<a name="line.1484"></a> -<span class="sourceLineNo">1485</span> setMetaInitialized(hri, false);<a name="line.1485"></a> -<span class="sourceLineNo">1486</span> }<a name="line.1486"></a> -<span class="sourceLineNo">1487</span> regionStates.addRegionToServer(regionNode.getRegionLocation(), regionNode);<a name="line.1487"></a> -<span class="sourceLineNo">1488</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1488"></a> -<span class="sourceLineNo">1489</span> regionNode.getRegionLocation(), regionNode.getLastHost(), HConstants.NO_SEQNUM,<a name="line.1489"></a> -<span class="sourceLineNo">1490</span> regionNode.getProcedure().getProcId());<a name="line.1490"></a> -<span class="sourceLineNo">1491</span> }<a name="line.1491"></a> -<span class="sourceLineNo">1492</span><a name="line.1492"></a> -<span class="sourceLineNo">1493</span> // update the operation count metrics<a name="line.1493"></a> -<span class="sourceLineNo">1494</span> metrics.incrementOperationCounter();<a name="line.1494"></a> -<span class="sourceLineNo">1495</span> }<a name="line.1495"></a> -<span class="sourceLineNo">1496</span><a name="line.1496"></a> -<span class="sourceLineNo">1497</span> public void undoRegionAsClosing(final RegionStateNode regionNode) {<a name="line.1497"></a> -<span class="sourceLineNo">1498</span> // TODO: Metrics. Do opposite of metrics.incrementOperationCounter();<a name="line.1498"></a> -<span class="sourceLineNo">1499</span> // There is nothing to undo?<a name="line.1499"></a> -<span class="sourceLineNo">1500</span> }<a name="line.1500"></a> +<span class="sourceLineNo">1442</span> public void markRegionAsOpening(final RegionStateNode regionNode) throws IOException {<a name="line.1442"></a> +<span class="sourceLineNo">1443</span> synchronized (regionNode) {<a name="line.1443"></a> +<span class="sourceLineNo">1444</span> State state = regionNode.transitionState(State.OPENING, RegionStates.STATES_EXPECTED_ON_OPEN);<a name="line.1444"></a> +<span class="sourceLineNo">1445</span> regionStates.addRegionToServer(regionNode.getRegionLocation(), regionNode);<a name="line.1445"></a> +<span class="sourceLineNo">1446</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1446"></a> +<span class="sourceLineNo">1447</span> regionNode.getRegionLocation(), regionNode.getLastHost(), HConstants.NO_SEQNUM,<a name="line.1447"></a> +<span class="sourceLineNo">1448</span> regionNode.getProcedure().getProcId());<a name="line.1448"></a> +<span class="sourceLineNo">1449</span> }<a name="line.1449"></a> +<span class="sourceLineNo">1450</span><a name="line.1450"></a> +<span class="sourceLineNo">1451</span> // update the operation count metrics<a name="line.1451"></a> +<span class="sourceLineNo">1452</span> metrics.incrementOperationCounter();<a name="line.1452"></a> +<span class="sourceLineNo">1453</span> }<a name="line.1453"></a> +<span class="sourceLineNo">1454</span><a name="line.1454"></a> +<span class="sourceLineNo">1455</span> public void undoRegionAsOpening(final RegionStateNode regionNode) {<a name="line.1455"></a> +<span class="sourceLineNo">1456</span> boolean opening = false;<a name="line.1456"></a> +<span class="sourceLineNo">1457</span> synchronized (regionNode) {<a name="line.1457"></a> +<span class="sourceLineNo">1458</span> if (regionNode.isInState(State.OPENING)) {<a name="line.1458"></a> +<span class="sourceLineNo">1459</span> opening = true;<a name="line.1459"></a> +<span class="sourceLineNo">1460</span> regionStates.removeRegionFromServer(regionNode.getRegionLocation(), regionNode);<a name="line.1460"></a> +<span class="sourceLineNo">1461</span> }<a name="line.1461"></a> +<span class="sourceLineNo">1462</span> // Should we update hbase:meta?<a name="line.1462"></a> +<span class="sourceLineNo">1463</span> }<a name="line.1463"></a> +<span class="sourceLineNo">1464</span> if (opening) {<a name="line.1464"></a> +<span class="sourceLineNo">1465</span> // TODO: Metrics. Do opposite of metrics.incrementOperationCounter();<a name="line.1465"></a> +<span class="sourceLineNo">1466</span> }<a name="line.1466"></a> +<span class="sourceLineNo">1467</span> }<a name="line.1467"></a> +<span class="sourceLineNo">1468</span><a name="line.1468"></a> +<span class="sourceLineNo">1469</span> public void markRegionAsOpened(final RegionStateNode regionNode) throws IOException {<a name="line.1469"></a> +<span class="sourceLineNo">1470</span> final RegionInfo hri = regionNode.getRegionInfo();<a name="line.1470"></a> +<span class="sourceLineNo">1471</span> synchronized (regionNode) {<a name="line.1471"></a> +<span class="sourceLineNo">1472</span> State state = regionNode.transitionState(State.OPEN, RegionStates.STATES_EXPECTED_ON_OPEN);<a name="line.1472"></a> +<span class="sourceLineNo">1473</span> if (isMetaRegion(hri)) {<a name="line.1473"></a> +<span class="sourceLineNo">1474</span> master.getTableStateManager().setTableState(TableName.META_TABLE_NAME,<a name="line.1474"></a> +<span class="sourceLineNo">1475</span> TableState.State.ENABLED);<a name="line.1475"></a> +<span class="sourceLineNo">1476</span> setMetaInitialized(hri, true);<a name="line.1476"></a> +<span class="sourceLineNo">1477</span> }<a name="line.1477"></a> +<span class="sourceLineNo">1478</span> regionStates.addRegionToServer(regionNode.getRegionLocation(), regionNode);<a name="line.1478"></a> +<span class="sourceLineNo">1479</span> // TODO: OPENING Updates hbase:meta too... we need to do both here and there?<a name="line.1479"></a> +<span class="sourceLineNo">1480</span> // That is a lot of hbase:meta writing.<a name="line.1480"></a> +<span class="sourceLineNo">1481</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1481"></a> +<span class="sourceLineNo">1482</span> regionNode.getRegionLocation(), regionNode.getLastHost(), regionNode.getOpenSeqNum(),<a name="line.1482"></a> +<span class="sourceLineNo">1483</span> regionNode.getProcedure().getProcId());<a name="line.1483"></a> +<span class="sourceLineNo">1484</span> sendRegionOpenedNotification(hri, regionNode.getRegionLocation());<a name="line.1484"></a> +<span class="sourceLineNo">1485</span> }<a name="line.1485"></a> +<span class="sourceLineNo">1486</span> }<a name="line.1486"></a> +<span class="sourceLineNo">1487</span><a name="line.1487"></a> +<span class="sourceLineNo">1488</span> public void markRegionAsClosing(final RegionStateNode regionNode) throws IOException {<a name="line.1488"></a> +<span class="sourceLineNo">1489</span> final RegionInfo hri = regionNode.getRegionInfo();<a name="line.1489"></a> +<span class="sourceLineNo">1490</span> synchronized (regionNode) {<a name="line.1490"></a> +<span class="sourceLineNo">1491</span> State state = regionNode.transitionState(State.CLOSING, RegionStates.STATES_EXPECTED_ON_CLOSE);<a name="line.1491"></a> +<span class="sourceLineNo">1492</span> // Set meta has not initialized early. so people trying to create/edit tables will wait<a name="line.1492"></a> +<span class="sourceLineNo">1493</span> if (isMetaRegion(hri)) {<a name="line.1493"></a> +<span class="sourceLineNo">1494</span> setMetaInitialized(hri, false);<a name="line.1494"></a> +<span class="sourceLineNo">1495</span> }<a name="line.1495"></a> +<span class="sourceLineNo">1496</span> regionStates.addRegionToServer(regionNode.getRegionLocation(), regionNode);<a name="line.1496"></a> +<span class="sourceLineNo">1497</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1497"></a> +<span class="sourceLineNo">1498</span> regionNode.getRegionLocation(), regionNode.getLastHost(), HConstants.NO_SEQNUM,<a name="line.1498"></a> +<span class="sourceLineNo">1499</span> regionNode.getProcedure().getProcId());<a name="line.1499"></a> +<span class="sourceLineNo">1500</span> }<a name="line.1500"></a> <span class="sourceLineNo">1501</span><a name="line.1501"></a> -<span class="sourceLineNo">1502</span> public void markRegionAsClosed(final RegionStateNode regionNode) throws IOException {<a name="line.1502"></a> -<span class="sourceLineNo">1503</span> final RegionInfo hri = regionNode.getRegionInfo();<a name="line.1503"></a> -<span class="sourceLineNo">1504</span> synchronized (regionNode) {<a name="line.1504"></a> -<span class="sourceLineNo">1505</span> State state = regionNode.transitionState(State.CLOSED, RegionStates.STATES_EXPECTED_ON_CLOSE);<a name="line.1505"></a> -<span class="sourceLineNo">1506</span> regionStates.removeRegionFromServer(regionNode.getRegionLocation(), regionNode);<a name="line.1506"></a> -<span class="sourceLineNo">1507</span> regionNode.setLastHost(regionNode.getRegionLocation());<a name="line.1507"></a> -<span class="sourceLineNo">1508</span> regionNode.setRegionLocation(null);<a name="line.1508"></a> -<span class="sourceLineNo">1509</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1509"></a> -<span class="sourceLineNo">1510</span> regionNode.getRegionLocation()/*null*/, regionNode.getLastHost(),<a name="line.1510"></a> -<span class="sourceLineNo">1511</span> HConstants.NO_SEQNUM, regionNode.getProcedure().getProcId());<a name="line.1511"></a> -<span class="sourceLineNo">1512</span> sendRegionClosedNotification(hri);<a name="line.1512"></a> -<span class="sourceLineNo">1513</span> }<a name="line.1513"></a> -<span class="sourceLineNo">1514</span> }<a name="line.1514"></a> -<span class="sourceLineNo">1515</span><a name="line.1515"></a> -<span class="sourceLineNo">1516</span> public void markRegionAsSplit(final RegionInfo parent, final ServerName serverName,<a name="line.1516"></a> -<span class="sourceLineNo">1517</span> final RegionInfo daughterA, final RegionInfo daughterB)<a name="line.1517"></a> -<span class="sourceLineNo">1518</span> throws IOException {<a name="line.1518"></a> -<span class="sourceLineNo">1519</span> // Update hbase:meta. Parent will be marked offline and split up in hbase:meta.<a name="line.1519"></a> -<span class="sourceLineNo">1520</span> // The parent stays in regionStates until cleared when removed by CatalogJanitor.<a name="line.1520"></a> -<span class="sourceLineNo">1521</span> // Update its state in regionStates to it shows as offline and split when read<a name="line.1521"></a> -<span class="sourceLineNo">1522</span> // later figuring what regions are in a table and what are not: see<a name="line.1522"></a> -<span class="sourceLineNo">1523</span> // regionStates#getRegionsOfTable<a name="line.1523"></a> -<span class="sourceLineNo">1524</span> final RegionStateNode node = regionStates.getOrCreateRegionNode(parent);<a name="line.1524"></a> -<span class="sourceLineNo">1525</span> node.setState(State.SPLIT);<a name="line.1525"></a> -<span class="sourceLineNo">1526</span> regionStateStore.splitRegion(parent, daughterA, daughterB, serverName);<a name="line.1526"></a> -<span class="sourceLineNo">1527</span> if (shouldAssignFavoredNodes(parent)) {<a name="line.1527"></a> -<span class="sourceLineNo">1528</span> List<ServerName> onlineServers = this.master.getServerManager().getOnlineServersList();<a name="line.1528"></a> -<span class="sourceLineNo">1529</span> ((FavoredNodesPromoter)getBalancer()).<a name="line.1529"></a> -<span class="sourceLineNo">1530</span> generateFavoredNodesForDaughter(onlineServers, parent, daughterA, daughterB);<a name="line.1530"></a> -<span class="sourceLineNo">1531</span> }<a name="line.1531"></a> -<span class="sourceLineNo">1532</span> }<a name="line.1532"></a> -<span class="sourceLineNo">1533</span><a name="line.1533"></a> -<span class="sourceLineNo">1534</span> /**<a name="line.1534"></a> -<span class="sourceLineNo">1535</span> * When called here, the merge has happened. The two merged regions have been<a name="line.1535"></a> -<span class="sourceLineNo">1536</span> * unassigned and the above markRegionClosed has been called on each so they have been<a name="line.1536"></a> -<span class="sourceLineNo">1537</span> * disassociated from a hosting Server. The merged region will be open after this call. The<a name="line.1537"></a> -<span class="sourceLineNo">1538</span> * merged regions are removed from hbase:meta below> Later they are deleted from the filesystem<a name="line.1538"></a> -<span class="sourceLineNo">1539</span> * by the catalog janitor running against hbase:meta. It notices when the merged region no<a name="line.1539"></a> -<span class="sourceLineNo">1540</span> * longer holds references to the old regions.<a name="line.1540"></a> -<span class="sourceLineNo">1541</span> */<a name="line.1541"></a> -<span class="sourceLineNo">1542</span> public void markRegionAsMerged(final RegionInfo child, final ServerName serverName,<a name="line.1542"></a> -<span class="sourceLineNo">1543</span> final RegionInfo mother, final RegionInfo father) throws IOException {<a name="line.1543"></a> -<span class="sourceLineNo">1544</span> final RegionStateNode node = regionStates.getOrCreateRegionNode(child);<a name="line.1544"></a> -<span class="sourceLineNo">1545</span> node.setState(State.MERGED);<a name="line.1545"></a> -<span class="sourceLineNo">1546</span> regionStates.deleteRegion(mother);<a name="line.1546"></a> -<span class="sourceLineNo">1547</span> regionStates.deleteRegion(father);<a name="line.1547"></a> -<span class="sourceLineNo">1548</span> regionStateStore.mergeRegions(child, mother, father, serverName);<a name="line.1548"></a> -<span class="sourceLineNo">1549</span> if (shouldAssignFavoredNodes(child)) {<a name="line.1549"></a> -<span class="sourceLineNo">1550</span> ((FavoredNodesPromoter)getBalancer()).<a name="line.1550"></a> -<span class="sourceLineNo">1551</span> generateFavoredNodesForMergedRegion(child, mother, father);<a name="line.1551"></a> -<span class="sourceLineNo">1552</span> }<a name="line.1552"></a> -<span class="sourceLineNo">1553</span> }<a name="line.1553"></a> -<span class="sourceLineNo">1554</span><a name="line.1554"></a> -<span class="sourceLineNo">1555</span> /*<a name="line.1555"></a> -<span class="sourceLineNo">1556</span> * Favored nodes should be applied only when FavoredNodes balancer is configured and the region<a name="line.1556"></a> -<span class="sourceLineNo">1557</span> * belongs to a non-system table.<a name="line.1557"></a> -<span class="sourceLineNo">1558</span> */<a name="line.1558"></a> -<span class="sourceLineNo">1559</span> private boolean shouldAssignFavoredNodes(RegionInfo region) {<a name="line.1559"></a> -<span class="sourceLineNo">1560</span> return this.shouldAssignRegionsWithFavoredNodes &&<a name="line.1560"></a> -<span class="sourceLineNo">1561</span> FavoredNodesManager.isFavoredNodeApplicable(region);<a name="line.1561"></a> -<span class="sourceLineNo">1562</span> }<a name="line.1562"></a> -<span class="sourceLineNo">1563</span><a name="line.1563"></a> -<span class="sourceLineNo">1564</span> // ============================================================================================<a name="line.1564"></a> -<span class="sourceLineNo">1565</span> // Assign Queue (Assign/Balance)<a name="line.1565"></a> -<span class="sourceLineNo">1566</span> // ============================================================================================<a name="line.1566"></a> -<span class="sourceLineNo">1567</span> private final ArrayList<RegionStateNode> pendingAssignQueue = new ArrayList<RegionStateNode>();<a name="line.1567"></a> -<span class="sourceLineNo">1568</span> private final ReentrantLock assignQueueLock = new ReentrantLock();<a name="line.1568"></a> -<span class="sourceLineNo">1569</span> private final Condition assignQueueFullCond = assignQueueLock.newCondition();<a name="line.1569"></a> -<span class="sourceLineNo">1570</span><a name="line.1570"></a> -<span class="sourceLineNo">1571</span> /**<a name="line.1571"></a> -<span class="sourceLineNo">1572</span> * Add the assign operation to the assignment queue.<a name="line.1572"></a> -<span class="sourceLineNo">1573</span> * The pending assignment operation will be processed,<a name="line.1573"></a> -<span class="sourceLineNo">1574</span> * and each region will be assigned by a server using the balancer.<a name="line.1574"></a> -<span class="sourceLineNo">1575</span> */<a name="line.1575"></a> -<span class="sourceLineNo">1576</span> protected void queueAssign(final RegionStateNode regionNode) {<a name="line.1576"></a> -<span class="sourceLineNo">1577</span> getProcedureScheduler().suspendEvent(regionNode.getProcedureEvent());<a name="line.1577"></a> -<span class="sourceLineNo">1578</span><a name="line.1578"></a> -<span class="sourceLineNo">1579</span> // TODO: quick-start for meta and the other sys-tables?<a name="line.1579"></a> -<span class="sourceLineNo">1580</span> assignQueueLock.lock();<a name="line.1580"></a> -<span class="sourceLineNo">1581</span> try {<a name="line.1581"></a> -<span class="sourceLineNo">1582</span> pendingAssignQueue.add(regionNode);<a name="line.1582"></a> -<span class="sourceLineNo">1583</span> if (regionNode.isSystemTable() ||<a name="line.1583"></a> -<span class="sourceLineNo">1584</span> pendingAssignQueue.size() == 1 ||<a name="line.1584"></a> -<span class="sourceLineNo">1585</span> pendingAssignQueue.size() >= assignDispatchWaitQueueMaxSize) {<a name="line.1585"></a> -<span class="sourceLineNo">1586</span> assignQueueFullCond.signal();<a name="line.1586"></a> -<span class="sourceLineNo">1587</span> }<a name="line.1587"></a> -<span class="sourceLineNo">1588</span> } finally {<a name="line.1588"></a> -<span class="sourceLineNo">1589</span> assignQueueLock.unlock();<a name="line.1589"></a> -<span class="sourceLineNo">1590</span> }<a name="line.1590"></a> -<span class="sourceLineNo">1591</span> }<a name="line.1591"></a> +<span class="sourceLineNo">1502</span> // update the operation count metrics<a name="line.1502"></a> +<span class="sourceLineNo">1503</span> metrics.incrementOperationCounter();<a name="line.1503"></a> +<span class="sourceLineNo">1504</span> }<a name="line.1504"></a> +<span class="sourceLineNo">1505</span><a name="line.1505"></a> +<span class="sourceLineNo">1506</span> public void undoRegionAsClosing(final RegionStateNode regionNode) {<a name="line.1506"></a> +<span class="sourceLineNo">1507</span> // TODO: Metrics. Do opposite of metrics.incrementOperationCounter();<a name="line.1507"></a> +<span class="sourceLineNo">1508</span> // There is nothing to undo?<a name="line.1508"></a> +<span class="sourceLineNo">1509</span> }<a name="line.1509"></a> +<span class="sourceLineNo">1510</span><a name="line.1510"></a> +<span class="sourceLineNo">1511</span> public void markRegionAsClosed(final RegionStateNode regionNode) throws IOException {<a name="line.1511"></a> +<span class="sourceLineNo">1512</span> final RegionInfo hri = regionNode.getRegionInfo();<a name="line.1512"></a> +<span class="sourceLineNo">1513</span> synchronized (regionNode) {<a name="line.1513"></a> +<span class="sourceLineNo">1514</span> State state = regionNode.transitionState(State.CLOSED, RegionStates.STATES_EXPECTED_ON_CLOSE);<a name="line.1514"></a> +<span class="sourceLineNo">1515</span> regionStates.removeRegionFromServer(regionNode.getRegionLocation(), regionNode);<a name="line.1515"></a> +<span class="sourceLineNo">1516</span> regionNode.setLastHost(regionNode.getRegionLocation());<a name="line.1516"></a> +<span class="sourceLineNo">1517</span> regionNode.setRegionLocation(null);<a name="line.1517"></a> +<span class="sourceLineNo">1518</span> regionStateStore.updateRegionLocation(regionNode.getRegionInfo(), state,<a name="line.1518"></a> +<span class="sourceLineNo">1519</span> regionNode.getRegionLocation()/*null*/, regionNode.getLastHost(),<a name="line.1519"></a> +<span class="sourceLineNo">1520</span> HConstants.NO_SEQNUM, regionNode.getProcedure().getProcId());<a name="line.1520"></a> +<span class="sourceLineNo">1521</span> sendRegionClosedNotification(hri);<a name="line.1521"></a> +<span class="sourceLineNo">1522</span> }<a name="line.1522"></a> +<span class="sourceLineNo">1523</span> }<a name="line.1523"></a> +<span class="sourceLineNo">1524</span><a name="line.1524"></a> +<span class="sourceLineNo">1525</span> public void markRegionAsSplit(final RegionInfo parent, final ServerName serverName,<a name="line.1525"></a> +<span class="sourceLineNo">1526</span> final RegionInfo daughterA, final RegionInfo daughterB)<a name="line.1526"></a> +<span class="sourceLineNo">1527</span> throws IOException {<a name="line.1527"></a> +<span class="sourceLineNo">1528</span> // Update hbase:meta. Parent will be marked offline and split up in hbase:meta.<a name="line.1528"></a> +<span class="sourceLineNo">1529</span> // The parent stays in regionStates until cleared when removed by CatalogJanitor.<a name="line.1529"></a> +<span class="sourceLineNo">1530</span> // Update its state in regionStates to it shows as offline and split when read<a name="line.1530"></a> +<span class="sourceLineNo">1531</span> // later figuring what regions are in a table and what are not: see<a name="line.1531"></a> +<span class="sourceLineNo">1532</span> // regionStates#getRegionsOfTable<a name="line.1532"></a> +<span class="sourceLineNo">1533</span> final RegionStateNode node = regionStates.getOrCreateRegionNode(parent);<a name="line.1533"></a> +<span class="sourceLineNo">1534</span> node.setState(State.SPLIT);<a name="line.1534"></a> +<span class="sourceLineNo">1535</span> final RegionStateNode nodeA = regionStates.getOrCreateRegionNode(daughterA);<a name="line.1535"></a> +<span class="sourceLineNo">1536</span> nodeA.setState(State.SPLITTING_NEW);<a name="line.1536"></a> +<span class="sourceLineNo">1537</span> final RegionStateNode nodeB = regionStates.getOrCreateRegionNode(daughterB);<a name="line.1537"></a> +<span class="sourceLineNo">1538</span> nodeB.setState(State.SPLITTING_NEW);<a name="line.1538"></a> +<span class="sourceLineNo">1539</span><a name="line.1539"></a> +<span class="sourceLineNo">1540</span> regionStateStore.splitRegion(parent, daughterA, daughterB, serverName);<a name="line.1540"></a> +<span class="sourceLineNo">1541</span> if (shouldAssignFavoredNodes(parent)) {<a name="line.1541"></a> +<span class="sourceLineNo">1542</span> List<ServerName> onlineServers = this.master.getServerManager().getOnlineServersList();<a name="line.1542"></a> +<span class="sourceLineNo">1543</span> ((FavoredNodesPromoter)getBalancer()).<a name="line.1543"></a> +<span class="sourceLineNo">1544</span> generateFavoredNodesForDaughter(onlineServers, parent, daughterA, daughterB);<a name="line.1544"></a> +<span class="sourceLineNo">1545</span> }<a name="line.1545"></a> +<span class="sourceLineNo">1546</span> }<a name="line.1546"></a> +<span class="sourceLineNo">1547</span><a name="line.1547"></a> +<span class="sourceLineNo">1548</span> /**<a name="line.1548"></a> +<span class="sourceLineNo">1549</span> * When called here, the merge has happened. The two merged regions have been<a name="line.1549"></a> +<span class="sourceLineNo">1550</span> * unassigned and the above markRegionClosed has been called on each so they have been<a name="line.1550"></a> +<span class="sourceLineNo">1551</span> * disassociated from a hosting Server. The merged region will be open after this call. The<a name="line.1551"></a> +<span class="sourceLineNo">1552</span> * merged regions are removed from hbase:meta below> Later they are deleted from the filesystem<a name="line.1552"></a> +<span class="sourceLineNo">1553</span> * by the catalog janitor running against hbase:meta. It notices when the merged region no<a name="line.1553"></a> +<span class="sourceLineNo">1554</span> * longer holds references to the old regions.<a name="line.1554"></a> +<span class="sourceLineNo">1555</span> */<a name="line.1555"></a> +<span class="sourceLineNo">1556</span> public void markRegionAsMerged(final RegionInfo child, final ServerName serverName,<a name="line.1556"></a> +<span class="sourceLineNo">1557</span> final RegionInfo mother, final RegionInfo father) throws IOException {<a name="line.1557"></a> +<span class="sourceLineNo">1558</span> final RegionStateNode node = regionStates.getOrCreateRegionNode(child);<a name="line.1558"></a> +<span class="sourceLineNo">1559</span> node.setState(State.MERGED);<a name="line.1559"></a> +<span class="sourceLineNo">1560</span> regionStates.deleteRegion(mother);<a name="line.1560"></a> +<span class="sourceLineNo">1561</span> regionStates.deleteRegion(father);<a name="line.1561"></a> +<span class="sourceLineNo">1562</span> regionStateStore.mergeRegions(child, mother, father, serverName);<a name="line.1562"></a> +<span class="sourceLineNo">1563</span> if (shouldAssignFavoredNodes(child)) {<a name="line.1563"></a> +<span class="sourceLineNo">1564</span> ((FavoredNodesPromoter)getBalancer()).<a name="line.1564"></a> +<span class="sourceLineNo">1565</span> generateFavoredNodesForMergedRegion(child, mother, father);<a name="line.1565"></a> +<span class="sourceLineNo">1566</span> }<a name="line.1566"></a> +<span class="sourceLineNo">1567</span> }<a name="line.1567"></a> +<span class="sourceLineNo">1568</span><a name="line.1568"></a> +<span class="sourceLineNo">1569</span> /*<a name="line.1569"></a> +<span class="sourceLineNo">1570</span> * Favored nodes should be applied only when FavoredNodes balancer is configured and the region<a name="line.1570"></a> +<span class="sourceLineNo">1571</span> * belongs to a non-system table.<a name="line.1571"></a> +<span class="sourceLineNo">1572</span> */<a name="line.1572"></a> +<span class="sourceLineNo">1573</span> private boolean shouldAssignFavoredNodes(RegionInfo region) {<a name="line.1573"></a> +<span class="sourceLineNo">1574</span> return this.shouldAssignRegionsWithFavoredNodes &&<a name="line.1574"></a> +<span class="sourceLineNo">1575</span> FavoredNodesManager.isFavoredNodeApplicable(region);<a name="line.1575"></a> +<span class="sourceLineNo">1576</span> }<a name="line.1576"></a> +<span class="sourceLineNo">1577</span><a name="line.1577"></a> +<span class="sourceLineNo">1578</span> // ============================================================================================<a name="line.1578"></a> +<span class="sourceLineNo">1579</span> // Assign Queue (Assign/Balance)<a name="line.1579"></a> +<span class="sourceLineNo">1580</span> // ============================================================================================<a name="line.1580"></a> +<span class="sourceLineNo">1581</span> private final ArrayList<RegionStateNode> pendingAssignQueue = new ArrayList<RegionStateNode>();<a name="line.1581"></a> +<span class="sourceLineNo">1582</span> private final ReentrantLock assignQueueLock = new ReentrantLock();<a name="line.1582"></a> +<span class="sourceLineNo">1583</span> private final Condition assignQueueFullCond = assignQueueLock.newCondition();<a name="line.1583"></a> +<span class="sourceLineNo">1584</span><a name="line.1584"></a> +<span class="sourceLineNo">1585</span> /**<a name="line.1585"></a> +<span class="sourceLineNo">1586</span> * Add the assign operation to the assignment queue.<a name="line.1586"></a> +<span class="sourceLineNo">1587</span> * The pending assignment operation will be processed,<a name="line.1587"></a> +<span class="sourceLineNo">1588</span> * and each region will be assigned by a server using the balancer.<a name="line.1588"></a> +<span class="sourceLineNo">1589</span> */<a name="line.1589"></a> +<span class="sourceLineNo">1590</span> protected void queueAssign(final RegionStateNode regionNode) {<a name="line.1590"></a> +<span class="sourceLineNo">1591</span> getProcedureScheduler().suspendEvent(regionNode.getProcedureEvent());<a name="line.1591"></a> <span class="sourceLineNo">1592</span><a name="line.1592"></a> -<span class="sourceLineNo">1593</span> private void startAssignmentThread() {<a name="line.1593"></a> -<span class="sourceLineNo">1594</span> assignThread = new Thread("AssignmentThread") {<a name="line.1594"></a> -<span class="sourceLineNo">1595</span> @Override<a name="line.1595"></a> -<span class="sourceLineNo">1596</span> public void run() {<a name="line.1596"></a> -<span class="sourceLineNo">1597</span> while (isRunning()) {<a name="line.1597"></a> -<span class="sourceLineNo">1598</span> processAssignQueue();<a name="line.1598"></a> -<span class="sourceLineNo">1599</span> }<a name="line.1599"></a> -<span class="sourceLineNo">1600</span> pendingAssignQueue.clear();<a name="line.1600"></a> +<span class="sourceLineNo">1593</span> // TODO: quick-start for meta and the other sys-tables?<a name="line.1593"></a> +<span class="sourceLineNo">1594</span> assignQueueLock.lock();<a name="line.1594"></a> +<span class="sourceLineNo">1595</span> try {<a name="line.1595"></a> +<span class="sourceLineNo">1596</span> pendingAssignQueue.add(regionNode);<a name="line.1596"></a> +<span class="sourceLineNo">1597</span> if (regionNode.isSystemTable() ||<a name="line.1597"></a> +<span class="sourceLineNo">1598</span> pendingAssignQueue.size() == 1 ||<a name="line.1598"></a> +<span class="sourceLineNo">1599</span> pendingAssignQueue.size() >= assignDispatchWaitQueueMaxSize) {<a name="line.1599"></a> +<span class="sourceLineNo">1600</span> assignQueueFullCond.signal();<a name="line.1600"></a> <span class="sourceLineNo">1601</span> }<a name="line.1601"></a> -<span cl
<TRUNCATED>
