http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3649682c/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterServices.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterServices.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterServices.html index 340948c..237b402 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterServices.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterServices.html @@ -359,7 +359,7 @@ <span class="sourceLineNo">351</span> * @return true if master is in maintanceMode<a name="line.351"></a> <span class="sourceLineNo">352</span> * @throws IOException if the inquiry failed due to an IO problem<a name="line.352"></a> <span class="sourceLineNo">353</span> */<a name="line.353"></a> -<span class="sourceLineNo">354</span> boolean isInMaintenanceMode() throws IOException;<a name="line.354"></a> +<span class="sourceLineNo">354</span> boolean isInMaintenanceMode();<a name="line.354"></a> <span class="sourceLineNo">355</span><a name="line.355"></a> <span class="sourceLineNo">356</span> /**<a name="line.356"></a> <span class="sourceLineNo">357</span> * Abort a procedure.<a name="line.357"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3649682c/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.FlushedSequenceIdFlusher.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.FlushedSequenceIdFlusher.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.FlushedSequenceIdFlusher.html index c13e4a4..f1c0bc3 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.FlushedSequenceIdFlusher.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.FlushedSequenceIdFlusher.html @@ -769,423 +769,426 @@ <span class="sourceLineNo">761</span> * RegionServers to check-in.<a name="line.761"></a> <span class="sourceLineNo">762</span> */<a name="line.762"></a> <span class="sourceLineNo">763</span> private int getMinToStart() {<a name="line.763"></a> -<span class="sourceLineNo">764</span> // One server should be enough to get us off the ground.<a name="line.764"></a> -<span class="sourceLineNo">765</span> int requiredMinToStart = 1;<a name="line.765"></a> -<span class="sourceLineNo">766</span> if (LoadBalancer.isTablesOnMaster(master.getConfiguration())) {<a name="line.766"></a> -<span class="sourceLineNo">767</span> if (LoadBalancer.isSystemTablesOnlyOnMaster(master.getConfiguration())) {<a name="line.767"></a> -<span class="sourceLineNo">768</span> // If Master is carrying regions but NOT user-space regions, it<a name="line.768"></a> -<span class="sourceLineNo">769</span> // still shows as a 'server'. 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We try to comment it in below but in essence:<a name="line.818"></a> +<span class="sourceLineNo">819</span> // Wait if Master is not stopped and the number of regionservers that have checked-in is<a name="line.819"></a> +<span class="sourceLineNo">820</span> // less than the maxToStart. Both of these conditions will be true near universally.<a name="line.820"></a> +<span class="sourceLineNo">821</span> // Next, we will keep cycling if ANY of the following three conditions are true:<a name="line.821"></a> +<span class="sourceLineNo">822</span> // 1. The time since a regionserver registered is < interval (means servers are actively checking in).<a name="line.822"></a> +<span class="sourceLineNo">823</span> // 2. We are under the total timeout.<a name="line.823"></a> +<span class="sourceLineNo">824</span> // 3. 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"stopped.": "running"));<a name="line.859"></a> +<span class="sourceLineNo">860</span> }<a name="line.860"></a> +<span class="sourceLineNo">861</span><a name="line.861"></a> +<span class="sourceLineNo">862</span> private String getStrForMax(final int max) {<a name="line.862"></a> +<span class="sourceLineNo">863</span> return max == Integer.MAX_VALUE? "NO_LIMIT": Integer.toString(max);<a name="line.863"></a> +<span class="sourceLineNo">864</span> }<a name="line.864"></a> +<span class="sourceLineNo">865</span><a name="line.865"></a> +<span class="sourceLineNo">866</span> /**<a name="line.866"></a> +<span class="sourceLineNo">867</span> * @return A copy of the internal list of online servers.<a name="line.867"></a> +<span class="sourceLineNo">868</span> */<a name="line.868"></a> +<span class="sourceLineNo">869</span> public List<ServerName> getOnlineServersList() {<a name="line.869"></a> +<span class="sourceLineNo">870</span> // TODO: optimize the load balancer call so we don't need to make a new list<a name="line.870"></a> +<span class="sourceLineNo">871</span> // TODO: FIX. 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A server can be online,<a name="line.908"></a> +<span class="sourceLineNo">909</span> * or known to be dead, or unknown to this manager (i.e, not online,<a name="line.909"></a> +<span class="sourceLineNo">910</span> * not known to be dead either. it is simply not tracked by the<a name="line.910"></a> +<span class="sourceLineNo">911</span> * master any more, for example, a very old previous instance).<a name="line.911"></a> +<span class="sourceLineNo">912</span> */<a name="line.912"></a> +<span class="sourceLineNo">913</span> public synchronized boolean isServerDead(ServerName serverName) {<a name="line.913"></a> +<span class="sourceLineNo">914</span> return serverName == null || deadservers.isDeadServer(serverName);<a name="line.914"></a> +<span class="sourceLineNo">915</span> }<a name="line.915"></a> +<span class="sourceLineNo">916</span><a name="line.916"></a> +<span class="sourceLineNo">917</span> public void shutdownCluster() {<a name="line.917"></a> +<span class="sourceLineNo">918</span> String statusStr = "Cluster shutdown requested of master=" + this.master.getServerName();<a name="line.918"></a> +<span class="sourceLineNo">919</span> LOG.info(statusStr);<a name="line.919"></a> +<span class="sourceLineNo">920</span> this.clusterShutdown.set(true);<a name="line.920"></a> +<span class="sourceLineNo">921</span> if (onlineServers.isEmpty()) {<a name="line.921"></a> +<span class="sourceLineNo">922</span> // we do not synchronize here so this may cause a double stop, but not a big deal<a name="line.922"></a> +<span class="sourceLineNo">923</span> master.stop("OnlineServer=0 right after cluster shutdown set");<a name="line.923"></a> +<span class="sourceLineNo">924</span> }<a name="line.924"></a> +<span class="sourceLineNo">925</span> }<a name="line.925"></a> +<span class="sourceLineNo">926</span><a name="line.926"></a> +<span class="sourceLineNo">927</span> public boolean isClusterShutdown() {<a name="line.927"></a> +<span class="sourceLineNo">928</span> return this.clusterShutdown.get();<a name="line.928"></a> +<span class="sourceLineNo">929</span> }<a name="line.929"></a> +<span class="sourceLineNo">930</span><a name="line.930"></a> +<span class="sourceLineNo">931</span> /**<a name="line.931"></a> +<span class="sourceLineNo">932</span> * start chore in ServerManager<a name="line.932"></a> +<span class="sourceLineNo">933</span> */<a name="line.933"></a> +<span class="sourceLineNo">934</span> public void startChore() {<a name="line.934"></a> +<span class="sourceLineNo">935</span> Configuration c = master.getConfiguration();<a name="line.935"></a> +<span class="sourceLineNo">936</span> if (persistFlushedSequenceId) {<a name="line.936"></a> +<span class="sourceLineNo">937</span> // when reach here, RegionStates should loaded, firstly, we call remove deleted regions<a name="line.937"></a> +<span class="sourceLineNo">938</span> removeDeletedRegionFromLoadedFlushedSequenceIds();<a name="line.938"></a> +<span class="sourceLineNo">939</span> int flushPeriod = c.getInt(FLUSHEDSEQUENCEID_FLUSHER_INTERVAL,<a name="line.939"></a> +<span class="sourceLineNo">940</span> FLUSHEDSEQUENCEID_FLUSHER_INTERVAL_DEFAULT);<a name="line.940"></a> +<span class="sourceLineNo">941</span> flushedSeqIdFlusher = new FlushedSequenceIdFlusher(<a name="line.941"></a> +<span class="sourceLineNo">942</span> "FlushedSequenceIdFlusher", flushPeriod);<a name="line.942"></a> +<span class="sourceLineNo">943</span> master.getChoreService().scheduleChore(flushedSeqIdFlusher);<a name="line.943"></a> +<span class="sourceLineNo">944</span> }<a name="line.944"></a> +<span class="sourceLineNo">945</span> }<a name="line.945"></a> +<span class="sourceLineNo">946</span><a name="line.946"></a> +<span class="sourceLineNo">947</span> /**<a name="line.947"></a> +<span class="sourceLineNo">948</span> * Stop the ServerManager.<a name="line.948"></a> +<span class="sourceLineNo">949</span> */<a name="line.949"></a> +<span 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class="sourceLineNo">980</span> return destServers;<a name="line.980"></a> +<span class="sourceLineNo">981</span> }<a name="line.981"></a> +<span class="sourceLineNo">982</span><a name="line.982"></a> +<span class="sourceLineNo">983</span> /**<a name="line.983"></a> +<span class="sourceLineNo">984</span> * Calls {@link #createDestinationServersList} without server to exclude.<a name="line.984"></a> +<span class="sourceLineNo">985</span> */<a name="line.985"></a> +<span class="sourceLineNo">986</span> public List<ServerName> createDestinationServersList(){<a name="line.986"></a> +<span class="sourceLineNo">987</span> return createDestinationServersList(null);<a name="line.987"></a> +<span class="sourceLineNo">988</span> }<a name="line.988"></a> +<span class="sourceLineNo">989</span><a name="line.989"></a> +<span class="sourceLineNo">990</span> /**<a name="line.990"></a> +<span class="sourceLineNo">991</span> * To clear any dead server with same host name and port of any online server<a name="line.991"></a> +<span class="sourceLineNo">992</span> */<a name="line.992"></a> +<span class="sourceLineNo">993</span> void clearDeadServersWithSameHostNameAndPortOfOnlineServer() {<a name="line.993"></a> +<span class="sourceLineNo">994</span> for (ServerName serverName : getOnlineServersList()) {<a name="line.994"></a> +<span class="sourceLineNo">995</span> deadservers.cleanAllPreviousInstances(serverName);<a name="line.995"></a> +<span class="sourceLineNo">996</span> }<a name="line.996"></a> +<span class="sourceLineNo">997</span> }<a name="line.997"></a> +<span class="sourceLineNo">998</span><a name="line.998"></a> +<span class="sourceLineNo">999</span> /**<a name="line.999"></a> +<span class="sourceLineNo">1000</span> * Called by delete table and similar to notify the ServerManager that a region was removed.<a name="line.1000"></a> +<span class="sourceLineNo">1001</span> */<a name="line.1001"></a> +<span class="sourceLineNo">1002</span> public void removeRegion(final RegionInfo regionInfo) {<a name="line.1002"></a> +<span class="sourceLineNo">1003</span> final byte[] encodedName = regionInfo.getEncodedNameAsBytes();<a name="line.1003"></a> +<span class="sourceLineNo">1004</span> storeFlushedSequenceIdsByRegion.remove(encodedName);<a name="line.1004"></a> +<span class="sourceLineNo">1005</span> flushedSequenceIdByRegion.remove(encodedName);<a name="line.1005"></a> +<span class="sourceLineNo">1006</span> }<a name="line.1006"></a> +<span class="sourceLineNo">1007</span><a name="line.1007"></a> +<span class="sourceLineNo">1008</span> @VisibleForTesting<a name="line.1008"></a> +<span class="sourceLineNo">1009</span> public boolean isRegionInServerManagerStates(final RegionInfo hri) {<a name="line.1009"></a> +<span class="sourceLineNo">1010</span> final byte[] encodedName = hri.getEncodedNameAsBytes();<a name="line.1010"></a> +<span class="sourceLineNo">1011</span> return (storeFlushedSequenceIdsByRegion.containsKey(encodedName)<a name="line.1011"></a> +<span class="sourceLineNo">1012</span> || flushedSequenceIdByRegion.containsKey(encodedName));<a name="line.1012"></a> +<span class="sourceLineNo">1013</span> }<a name="line.1013"></a> +<span class="sourceLineNo">1014</span><a name="line.1014"></a> +<span class="sourceLineNo">1015</span> /**<a name="line.1015"></a> +<span class="sourceLineNo">1016</span> * Called by delete table and similar to notify the ServerManager that a region was removed.<a name="line.1016"></a> +<span class="sourceLineNo">1017</span> */<a name="line.1017"></a> +<span class="sourceLineNo">1018</span> public void removeRegions(final List<RegionInfo> regions) {<a name="line.1018"></a> +<span class="sourceLineNo">1019</span> for (RegionInfo hri: regions) {<a name="line.1019"></a> +<span class="sourceLineNo">1020</span> removeRegion(hri);<a name="line.1020"></a> +<span class="sourceLineNo">1021</span> }<a name="line.1021"></a> +<span class="sourceLineNo">1022</span> }<a name="line.1022"></a> +<span class="sourceLineNo">1023</span><a name="line.1023"></a> +<span class="sourceLineNo">1024</span> /**<a name="line.1024"></a> +<span class="sourceLineNo">1025</span> * May return 0 when server is not online.<a name="line.1025"></a> +<span class="sourceLineNo">1026</span> */<a name="line.1026"></a> +<span class="sourceLineNo">1027</span> public int getVersionNumber(ServerName serverName) {<a name="line.1027"></a> +<span class="sourceLineNo">1028</span> ServerMetrics serverMetrics = onlineServers.get(serverName);<a name="line.1028"></a> +<span class="sourceLineNo">1029</span> return serverMetrics != null ? serverMetrics.getVersionNumber() : 0;<a name="line.1029"></a> +<span class="sourceLineNo">1030</span> }<a name="line.1030"></a> +<span class="sourceLineNo">1031</span><a name="line.1031"></a> +<span class="sourceLineNo">1032</span> /**<a name="line.1032"></a> +<span class="sourceLineNo">1033</span> * May return "0.0.0" when server is not online<a name="line.1033"></a> +<span class="sourceLineNo">1034</span> */<a name="line.1034"></a> +<span class="sourceLineNo">1035</span> public String getVersion(ServerName serverName) {<a name="line.1035"></a> +<span class="sourceLineNo">1036</span> ServerMetrics serverMetrics = onlineServers.get(serverName);<a name="line.1036"></a> +<span class="sourceLineNo">1037</span> return serverMetrics != null ? serverMetrics.getVersion() : "0.0.0";<a name="line.1037"></a> +<span class="sourceLineNo">1038</span> }<a name="line.1038"></a> +<span class="sourceLineNo">1039</span><a name="line.1039"></a> +<span class="sourceLineNo">1040</span> public int getInfoPort(ServerName serverName) {<a name="line.1040"></a> +<span class="sourceLineNo">1041</span> ServerMetrics serverMetrics = onlineServers.get(serverName);<a name="line.1041"></a> +<span class="sourceLineNo">1042</span> return serverMetrics != null ? serverMetrics.getInfoServerPort() : 0;<a name="line.1042"></a> +<span class="sourceLineNo">1043</span> }<a name="line.1043"></a> +<span class="sourceLineNo">1044</span><a name="line.1044"></a> +<span class="sourceLineNo">1045</span> /**<a name="line.1045"></a> +<span class="sourceLineNo">1046</span> * Persist last flushed sequence id of each region to HDFS<a name="line.1046"></a> +<span class="sourceLineNo">1047</span> * @throws IOException if persit to HDFS fails<a name="line.1047"></a> +<span class="sourceLineNo">1048</span> */<a name="line.1048"></a> +<span class="sourceLineNo">1049</span> private void persistRegionLastFlushedSequenceIds() throws IOException {<a name="line.1049"></a> +<span class="sourceLineNo">1050</span> if (isFlushSeqIdPersistInProgress) {<a name="line.1050"></a> +<span class="sourceLineNo">1051</span> return;<a name="line.1051"></a> +<span class="sourceLineNo">1052</span> }<a name="line.1052"></a> +<span class="sourceLineNo">1053</span> isFlushSeqIdPersistInProgress = true;<a name="line.1053"></a> +<span class="sourceLineNo">1054</span> try {<a name="line.1054"></a> +<span class="sourceLineNo">1055</span> Configuration conf = master.getConfiguration();<a name="line.1055"></a> +<span class="sourceLineNo">1056</span> Path rootDir = FSUtils.getRootDir(conf);<a name="line.1056"></a> +<span class="sourceLineNo">1057</span> Path lastFlushedSeqIdPath = new Path(rootDir, LAST_FLUSHED_SEQ_ID_FILE);<a name="line.1057"></a> +<span class="sourceLineNo">1058</span> FileSystem fs = FileSystem.get(conf);<a name="line.1058"></a> +<span class="sourceLineNo">1059</span> if (fs.exists(lastFlushedSeqIdPath)) {<a name="line.1059"></a> +<span class="sourceLineNo">1060</span> LOG.info("Rewriting .lastflushedseqids file at: "<a name="line.1060"></a> +<span class="sourceLineNo">1061</span> + lastFlushedSeqIdPath);<a name="line.1061"></a> +<span class="sourceLineNo">1062</span> if (!fs.delete(lastFlushedSeqIdPath, false)) {<a name="line.1062"></a> +<span class="sourceLineNo">1063</span> throw new IOException("Unable to remove existing "<a name="line.1063"></a> +<span class="sourceLineNo">1064</span> + lastFlushedSeqIdPath);<a name="line.1064"></a> +<span class="sourceLineNo">1065</span> }<a name="line.1065"></a> +<span class="sourceLineNo">1066</span> } else {<a name="line.1066"></a> +<span class="sourceLineNo">1067</span> LOG.info("Writing .lastflushedseqids file at: " + lastFlushedSeqIdPath);<a name="line.1067"></a> +<span class="sourceLineNo">1068</span> }<a name="line.1068"></a> +<span class="sourceLineNo">1069</span> FSDataOutputStream out = fs.create(lastFlushedSeqIdPath);<a name="line.1069"></a> +<span class="sourceLineNo">1070</span> FlushedSequenceId.Builder flushedSequenceIdBuilder =<a name="line.1070"></a> +<span class="sourceLineNo">1071</span> FlushedSequenceId.newBuilder();<a name="line.1071"></a> +<span class="sourceLineNo">1072</span> try {<a name="line.1072"></a> +<span class="sourceLineNo">1073</span> for (Entry<byte[], Long> entry : flushedSequenceIdByRegion.entrySet()) {<a name="line.1073"></a> +<span class="sourceLineNo">1074</span> FlushedRegionSequenceId.Builder flushedRegionSequenceIdBuilder =<a name="line.1074"></a> +<span class="sourceLineNo">1075</span> FlushedRegionSequenceId.newBuilder();<a name="line.1075"></a> +<span class="sourceLineNo">1076</span> flushedRegionSequenceIdBuilder.setRegionEncodedName(<a name="line.1076"></a> +<span class="sourceLineNo">1077</span> ByteString.copyFrom(entry.getKey()));<a name="line.1077"></a> +<span class="sourceLineNo">1078</span> flushedRegionSequenceIdBuilder.setSeqId(entry.getValue());<a name="line.1078"></a> +<span class="sourceLineNo">1079</span> ConcurrentNavigableMap<byte[], Long> storeSeqIds =<a name="line.1079"></a> +<span class="sourceLineNo">1080</span> storeFlushedSequenceIdsByRegion.get(entry.getKey());<a name="line.1080"></a> +<span class="sourceLineNo">1081</span> if (storeSeqIds != null) {<a name="line.1081"></a> +<span class="sourceLineNo">1082</span> for (Entry<byte[], Long> store : storeSeqIds.entrySet()) {<a name="line.1082"></a> +<span class="sourceLineNo">1083</span> FlushedStoreSequenceId.Builder flushedStoreSequenceIdBuilder =<a name="line.1083"></a> +<span class="sourceLineNo">1084</span> FlushedStoreSequenceId.newBuilder();<a name="line.1084"></a> +<span class="sourceLineNo">1085</span> flushedStoreSequenceIdBuilder.setFamily(ByteString.copyFrom(store.getKey()));<a name="line.1085"></a> +<span class="sourceLineNo">1086</span> flushedStoreSequenceIdBuilder.setSeqId(store.getValue());<a name="line.1086"></a> +<span class="sourceLineNo">1087</span> flushedRegionSequenceIdBuilder.addStores(flushedStoreSequenceIdBuilder);<a name="line.1087"></a> +<span class="sourceLineNo">1088</span> }<a name="line.1088"></a> +<span class="sourceLineNo">1089</span> }<a name="line.1089"></a> +<span class="sourceLineNo">1090</span> flushedSequenceIdBuilder.addRegionSequenceId(flushedRegionSequenceIdBuilder);<a name="line.1090"></a> +<span class="sourceLineNo">1091</span> }<a name="line.1091"></a> +<span class="sourceLineNo">1092</span> flushedSequenceIdBuilder.build().writeDelimitedTo(out);<a name="line.1092"></a> +<span class="sourceLineNo">1093</span> } finally {<a name="line.1093"></a> +<span class="sourceLineNo">1094</span> if (out != null) {<a name="line.1094"></a> +<span class="sourceLineNo">1095</span> out.close();<a name="line.1095"></a> +<span class="sourceLineNo">1096</span> }<a name="line.1096"></a> +<span class="sourceLineNo">1097</span> }<a name="line.1097"></a> +<span class="sourceLineNo">1098</span> } finally {<a name="line.1098"></a> +<span class="sourceLineNo">1099</span> isFlushSeqIdPersistInProgress = false;<a name="line.1099"></a> +<span class="sourceLineNo">1100</span> }<a name="line.1100"></a> +<span class="sourceLineNo">1101</span> }<a name="line.1101"></a> +<span class="sourceLineNo">1102</span><a name="line.1102"></a> +<span class="sourceLineNo">1103</span> /**<a name="line.1103"></a> +<span class="sourceLineNo">1104</span> * Load last flushed sequence id of each region from HDFS, if persisted<a name="line.1104"></a> +<span class="sourceLineNo">1105</span> */<a name="line.1105"></a> +<span class="sourceLineNo">1106</span> public void loadLastFlushedSequenceIds() throws IOException {<a name="line.1106"></a> +<span class="sourceLineNo">1107</span> if (!persistFlushedSequenceId) {<a name="line.1107"></a> +<span class="sourceLineNo">1108</span> return;<a name="line.1108"></a> +<span class="sourceLineNo">1109</span> }<a name="line.1109"></a> +<span class="sourceLineNo">1110</span> Configuration conf = master.getConfiguration();<a name="line.1110"></a> +<span class="sourceLineNo">1111</span> Path rootDir = FSUtils.getRootDir(conf);<a name="line.1111"></a> +<span class="sourceLineNo">1112</span> Path lastFlushedSeqIdPath = new Path(rootDir, LAST_FLUSHED_SEQ_ID_FILE);<a name="line.1112"></a> +<span class="sourceLineNo">1113</span> FileSystem fs = FileSystem.get(conf);<a name="line.1113"></a> +<span class="sourceLineNo">1114</span> if (!fs.exists(lastFlushedSeqIdPath)) {<a name="line.1114"></a> +<span class="sourceLineNo">1115</span> LOG.info("No .lastflushedseqids found at" + lastFlushedSeqIdPath<a name="line.1115"></a> +<span class="sourceLineNo">1116</span> + " will record last flushed sequence id"<a name="line.1116"></a> +<span class="sourceLineNo">1117</span> + " for regions by regionserver report all over again");<a name="line.1117"></a> +<span class="sourceLineNo">1118</span> return;<a name="line.1118"></a> +<span class="sourceLineNo">1119</span> } else {<a name="line.1119"></a> +<span class="sourceLineNo">1120</span> LOG.info("begin to load .lastflushedseqids at " + lastFlushedSeqIdPath);<a name="line.1120"></a> +<span class="sourceLineNo">1121</span> }<a name="line.1121"></a> +<span class="sourceLineNo">1122</span> FSDataInputStream in = fs.open(lastFlushedSeqIdPath);<a name="line.1122"></a> +<span class="sourceLineNo">1123</span> try {<a name="line.1123"></a> +<span class="sourceLineNo">1124</span> FlushedSequenceId flushedSequenceId =<a name="line.1124"></a> +<span class="sourceLineNo">1125</span> FlushedSequenceId.parseDelimitedFrom(in);<a name="line.1125"></a> +<span class="sourceLineNo">1126</span> for (FlushedRegionSequenceId flushedRegionSequenceId : flushedSequenceId<a name="line.1126"></a> +<span class="sourceLineNo">1127</span> .getRegionSequenceIdList()) {<a name="line.1127"></a> +<span class="sourceLineNo">1128</span> byte[] encodedRegionName = flushedRegionSequenceId<a name="line.1128"></a> +<span class="sourceLineNo">1129</span> .getRegionEncodedName().toByteArray();<a name="line.1129"></a> +<span class="sourceLineNo">1130</span> flushedSequenceIdByRegion<a name="line.1130"></a> +<span class="sourceLineNo">1131</span> .putIfAbsent(encodedRegionName, flushedRegionSequenceId.getSeqId());<a name="line.1131"></a> +<span class="sourceLineNo">1132</span> if (flushedRegionSequenceId.getStoresList() != null<a name="line.1132"></a> +<span class="sourceLineNo">1133</span> && flushedRegionSequenceId.getStoresList().size() != 0) {<a name="line.1133"></a> +<span class="sourceLineNo">1134</span> ConcurrentNavigableMap<byte[], Long> storeFlushedSequenceId =<a name="line.1134"></a> +<span class="sourceLineNo">1135</span> computeIfAbsent(storeFlushedSequenceIdsByRegion, encodedRegionName,<a name="line.1135"></a> +<span class="sourceLineNo">1136</span> () -> new ConcurrentSkipListMap<>(Bytes.BYTES_COMPARATOR));<a name="line.1136"></a> +<span class="sourceLineNo">1137</span> for (FlushedStoreSequenceId flushedStoreSequenceId : flushedRegionSequenceId<a name="line.1137"></a> +<span class="sourceLineNo">1138</span> .getStoresList()) {<a name="line.1138"></a> +<span class="sourceLineNo">1139</span> storeFlushedSequenceId<a name="line.1139"></a> +<span class="sourceLineNo">1140</span> .put(flushedStoreSequenceId.getFamily().toByteArray(),<a name="line.1140"></a> +<span class="sourceLineNo">1141</span> flushedStoreSequenceId.getSeqId());<a name="line.1141"></a> +<span class="sourceLineNo">1142</span> }<a name="line.1142"></a> +<span class="sourceLineNo">1143</span> }<a name="line.1143"></a> +<span class="sourceLineNo">1144</span> }<a name="line.1144"></a> +<span class="sourceLineNo">1145</span> } finally {<a name="line.1145"></a> +<span class="sourceLineNo">1146</span> in.close();<a name="line.1146"></a> +<span class="sourceLineNo">1147</span> }<a name="line.1147"></a> +<span class="sourceLineNo">1148</span> }<a name="line.1148"></a> +<span class="sourceLineNo">1149</span><a name="line.1149"></a> +<span class="sourceLineNo">1150</span> /**<a name="line.1150"></a> +<span class="sourceLineNo">1151</span> * Regions may have been removed between latest persist of FlushedSequenceIds<a name="line.1151"></a> +<span class="sourceLineNo">1152</span> * and master abort. So after loading FlushedSequenceIds from file, and after<a name="line.1152"></a> +<span class="sourceLineNo">1153</span> * meta loaded, we need to remove the deleted region according to RegionStates.<a name="line.1153"></a> +<span class="sourceLineNo">1154</span> */<a name="line.1154"></a> +<span class="sourceLineNo">1155</span> public void removeDeletedRegionFromLoadedFlushedSequenceIds() {<a name="line.1155"></a> +<span class="sourceLineNo">1156</span> RegionStates regionStates = master.getAssignmentManager().getRegionStates();<a name="line.1156"></a> +<span class="sourceLineNo">1157</span> Iterator<byte[]> it = flushedSequenceIdByRegion.keySet().iterator();<a name="line.1157"></a> +<span class="sourceLineNo">1158</span> while(it.hasNext()) {<a name="line.1158"></a> +<span class="sourceLineNo">1159</span> byte[] regionEncodedName = it.next();<a name="line.1159"></a> +<span class="sourceLineNo">1160</span> if (regionStates.getRegionState(Bytes.toStringBinary(regionEncodedName)) == null) {<a name="line.1160"></a> +<span class="sourceLineNo">1161</span> it.remove();<a name="line.1161"></a> +<span class="sourceLineNo">1162</span> storeFlushedSequenceIdsByRegion.remove(regionEncodedName);<a name="line.1162"></a> +<span class="sourceLineNo">1163</span> }<a name="line.1163"></a> +<span class="sourceLineNo">1164</span> }<a name="line.1164"></a> +<span class="sourceLineNo">1165</span> }<a name="line.1165"></a> +<span class="sourceLineNo">1166</span><a name="line.1166"></a> +<span class="sourceLineNo">1167</span> private class FlushedSequenceIdFlusher extends ScheduledChore {<a name="line.1167"></a> +<span class="sourceLineNo">1168</span><a name="line.1168"></a> +<span class="sourceLineNo">1169</span> public FlushedSequenceIdFlusher(String name, int p) {<a name="line.1169"></a> +<span class="sourceLineNo">1170</span> super(name, master, p, 60 * 1000); //delay one minute before first execute<a name="line.1170"></a> +<span class="sourceLineNo">1171</span> }<a name="line.1171"></a> +<span class="sourceLineNo">1172</span><a name="line.1172"></a> +<span class="sourceLineNo">1173</span> @Override<a name="line.1173"></a> +<span class="sourceLineNo">1174</span> protected void chore() {<a name="line.1174"></a> +<span class="sourceLineNo">1175</span> try {<a name="line.1175"></a> +<span class="sourceLineNo">1176</span> persistRegionLastFlushedSequenceIds();<a name="line.1176"></a> +<span class="sourceLineNo">1177</span> } catch (IOException e) {<a name="line.1177"></a> +<span class="sourceLineNo">1178</span> LOG.debug("Failed to persist last flushed sequence id of regions"<a name="line.1178"></a> +<span class="sourceLineNo">1179</span> + " to file system", e);<a name="line.1179"></a> +<span class="sourceLineNo">1180</span> }<a name="line.1180"></a> +<span class="sourceLineNo">1181</span> }<a name="line.1181"></a> +<span class="sourceLineNo">1182</span> }<a name="line.1182"></a> +<span class="sourceLineNo">1183</span>}<a name="line.1183"></a>
