Repository: hbase-site Updated Branches: refs/heads/asf-site 6daeaf094 -> 804782f09
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/804782f0/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.NamespaceExclusiveLock.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.NamespaceExclusiveLock.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.NamespaceExclusiveLock.html index aba85f1..a2daee8 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.NamespaceExclusiveLock.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.NamespaceExclusiveLock.html @@ -84,420 +84,411 @@ <span class="sourceLineNo">076</span> private String description;<a name="line.76"></a> <span class="sourceLineNo">077</span> // True when recovery of master lock from WALs<a name="line.77"></a> <span class="sourceLineNo">078</span> private boolean recoveredMasterLock;<a name="line.78"></a> -<span class="sourceLineNo">079</span> // this is for internal working<a name="line.79"></a> -<span class="sourceLineNo">080</span> private boolean hasLock;<a name="line.80"></a> -<span class="sourceLineNo">081</span><a name="line.81"></a> -<span class="sourceLineNo">082</span> private final ProcedureEvent<LockProcedure> event = new ProcedureEvent<>(this);<a name="line.82"></a> -<span class="sourceLineNo">083</span> // True if this proc acquired relevant locks. This value is for client checks.<a name="line.83"></a> -<span class="sourceLineNo">084</span> private final AtomicBoolean locked = new AtomicBoolean(false);<a name="line.84"></a> -<span class="sourceLineNo">085</span> // Last system time (in ms) when client sent the heartbeat.<a name="line.85"></a> -<span class="sourceLineNo">086</span> // Initialize to system time for non-null value in case of recovery.<a name="line.86"></a> -<span class="sourceLineNo">087</span> private final AtomicLong lastHeartBeat = new AtomicLong();<a name="line.87"></a> -<span class="sourceLineNo">088</span> // Set to true when unlock request is received.<a name="line.88"></a> -<span class="sourceLineNo">089</span> private final AtomicBoolean unlock = new AtomicBoolean(false);<a name="line.89"></a> -<span class="sourceLineNo">090</span> // decreased when locks are acquired. Only used for local (with master process) purposes.<a name="line.90"></a> -<span class="sourceLineNo">091</span> // Setting latch to non-null value increases default timeout to<a name="line.91"></a> -<span class="sourceLineNo">092</span> // DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS (10 min) so that there is no need to heartbeat.<a name="line.92"></a> -<span class="sourceLineNo">093</span> private final CountDownLatch lockAcquireLatch;<a name="line.93"></a> -<span class="sourceLineNo">094</span><a name="line.94"></a> -<span class="sourceLineNo">095</span> @Override<a name="line.95"></a> -<span class="sourceLineNo">096</span> public TableName getTableName() {<a name="line.96"></a> -<span class="sourceLineNo">097</span> return tableName;<a name="line.97"></a> -<span class="sourceLineNo">098</span> }<a name="line.98"></a> -<span class="sourceLineNo">099</span><a name="line.99"></a> -<span class="sourceLineNo">100</span> @Override<a name="line.100"></a> -<span class="sourceLineNo">101</span> public TableOperationType getTableOperationType() {<a name="line.101"></a> -<span class="sourceLineNo">102</span> return opType;<a name="line.102"></a> -<span class="sourceLineNo">103</span> }<a name="line.103"></a> -<span class="sourceLineNo">104</span><a name="line.104"></a> -<span class="sourceLineNo">105</span> private interface LockInterface {<a name="line.105"></a> -<span class="sourceLineNo">106</span> boolean acquireLock(MasterProcedureEnv env);<a name="line.106"></a> -<span class="sourceLineNo">107</span> void releaseLock(MasterProcedureEnv env);<a name="line.107"></a> -<span class="sourceLineNo">108</span> }<a name="line.108"></a> -<span class="sourceLineNo">109</span><a name="line.109"></a> -<span class="sourceLineNo">110</span> public LockProcedure() {<a name="line.110"></a> -<span class="sourceLineNo">111</span> lockAcquireLatch = null;<a name="line.111"></a> -<span class="sourceLineNo">112</span> }<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> private LockProcedure(final Configuration conf, final LockType type,<a name="line.114"></a> -<span class="sourceLineNo">115</span> final String description, final CountDownLatch lockAcquireLatch) {<a name="line.115"></a> -<span class="sourceLineNo">116</span> this.type = type;<a name="line.116"></a> -<span class="sourceLineNo">117</span> this.description = description;<a name="line.117"></a> -<span class="sourceLineNo">118</span> this.lockAcquireLatch = lockAcquireLatch;<a name="line.118"></a> -<span class="sourceLineNo">119</span> if (lockAcquireLatch == null) {<a name="line.119"></a> -<span class="sourceLineNo">120</span> setTimeout(conf.getInt(REMOTE_LOCKS_TIMEOUT_MS_CONF, DEFAULT_REMOTE_LOCKS_TIMEOUT_MS));<a name="line.120"></a> -<span class="sourceLineNo">121</span> } else {<a name="line.121"></a> -<span class="sourceLineNo">122</span> setTimeout(conf.getInt(LOCAL_MASTER_LOCKS_TIMEOUT_MS_CONF,<a name="line.122"></a> -<span class="sourceLineNo">123</span> DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS));<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span> }<a name="line.125"></a> -<span class="sourceLineNo">126</span><a name="line.126"></a> -<span class="sourceLineNo">127</span> /**<a name="line.127"></a> -<span class="sourceLineNo">128</span> * Constructor for namespace lock.<a name="line.128"></a> -<span class="sourceLineNo">129</span> * @param lockAcquireLatch if not null, the latch is decreased when lock is acquired.<a name="line.129"></a> -<span class="sourceLineNo">130</span> */<a name="line.130"></a> -<span class="sourceLineNo">131</span> public LockProcedure(final Configuration conf, final String namespace, final LockType type,<a name="line.131"></a> -<span class="sourceLineNo">132</span> final String description, final CountDownLatch lockAcquireLatch)<a name="line.132"></a> -<span class="sourceLineNo">133</span> throws IllegalArgumentException {<a name="line.133"></a> -<span class="sourceLineNo">134</span> this(conf, type, description, lockAcquireLatch);<a name="line.134"></a> -<span class="sourceLineNo">135</span><a name="line.135"></a> -<span class="sourceLineNo">136</span> if (namespace.isEmpty()) {<a name="line.136"></a> -<span class="sourceLineNo">137</span> throw new IllegalArgumentException("Empty namespace");<a name="line.137"></a> -<span class="sourceLineNo">138</span> }<a name="line.138"></a> -<span class="sourceLineNo">139</span><a name="line.139"></a> -<span class="sourceLineNo">140</span> this.namespace = namespace;<a name="line.140"></a> -<span class="sourceLineNo">141</span> this.lock = setupNamespaceLock();<a name="line.141"></a> -<span class="sourceLineNo">142</span> }<a name="line.142"></a> -<span class="sourceLineNo">143</span><a name="line.143"></a> -<span class="sourceLineNo">144</span> /**<a name="line.144"></a> -<span class="sourceLineNo">145</span> * Constructor for table lock.<a name="line.145"></a> -<span class="sourceLineNo">146</span> * @param lockAcquireLatch if not null, the latch is decreased when lock is acquired.<a name="line.146"></a> -<span class="sourceLineNo">147</span> */<a name="line.147"></a> -<span class="sourceLineNo">148</span> public LockProcedure(final Configuration conf, final TableName tableName, final LockType type,<a name="line.148"></a> -<span class="sourceLineNo">149</span> final String description, final CountDownLatch lockAcquireLatch)<a name="line.149"></a> -<span class="sourceLineNo">150</span> throws IllegalArgumentException {<a name="line.150"></a> -<span class="sourceLineNo">151</span> this(conf, type, description, lockAcquireLatch);<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> this.tableName = tableName;<a name="line.153"></a> -<span class="sourceLineNo">154</span> this.lock = setupTableLock();<a name="line.154"></a> -<span class="sourceLineNo">155</span> }<a name="line.155"></a> -<span class="sourceLineNo">156</span><a name="line.156"></a> -<span class="sourceLineNo">157</span> /**<a name="line.157"></a> -<span class="sourceLineNo">158</span> * Constructor for region lock(s).<a name="line.158"></a> -<span class="sourceLineNo">159</span> * @param lockAcquireLatch if not null, the latch is decreased when lock is acquired.<a name="line.159"></a> -<span class="sourceLineNo">160</span> * Useful for locks acquired locally from master process.<a name="line.160"></a> -<span class="sourceLineNo">161</span> * @throws IllegalArgumentException if all regions are not from same table.<a name="line.161"></a> -<span class="sourceLineNo">162</span> */<a name="line.162"></a> -<span class="sourceLineNo">163</span> public LockProcedure(final Configuration conf, final RegionInfo[] regionInfos,<a name="line.163"></a> -<span class="sourceLineNo">164</span> final LockType type, final String description, final CountDownLatch lockAcquireLatch)<a name="line.164"></a> -<span class="sourceLineNo">165</span> throws IllegalArgumentException {<a name="line.165"></a> -<span class="sourceLineNo">166</span> this(conf, type, description, lockAcquireLatch);<a name="line.166"></a> -<span class="sourceLineNo">167</span><a name="line.167"></a> -<span class="sourceLineNo">168</span> // Build RegionInfo from region names.<a name="line.168"></a> -<span class="sourceLineNo">169</span> if (regionInfos.length == 0) {<a name="line.169"></a> -<span class="sourceLineNo">170</span> throw new IllegalArgumentException("No regions specified for region lock");<a name="line.170"></a> -<span class="sourceLineNo">171</span> }<a name="line.171"></a> -<span class="sourceLineNo">172</span><a name="line.172"></a> -<span class="sourceLineNo">173</span> // check all regions belong to same table.<a name="line.173"></a> -<span class="sourceLineNo">174</span> final TableName regionTable = regionInfos[0].getTable();<a name="line.174"></a> -<span class="sourceLineNo">175</span> for (int i = 1; i < regionInfos.length; ++i) {<a name="line.175"></a> -<span class="sourceLineNo">176</span> if (!regionInfos[i].getTable().equals(regionTable)) {<a name="line.176"></a> -<span class="sourceLineNo">177</span> throw new IllegalArgumentException("All regions should be from same table");<a name="line.177"></a> -<span class="sourceLineNo">178</span> }<a name="line.178"></a> -<span class="sourceLineNo">179</span> }<a name="line.179"></a> -<span class="sourceLineNo">180</span><a name="line.180"></a> -<span class="sourceLineNo">181</span> this.regionInfos = regionInfos;<a name="line.181"></a> -<span class="sourceLineNo">182</span> this.lock = setupRegionLock();<a name="line.182"></a> -<span class="sourceLineNo">183</span> }<a name="line.183"></a> -<span class="sourceLineNo">184</span><a name="line.184"></a> -<span class="sourceLineNo">185</span> private boolean hasHeartbeatExpired() {<a name="line.185"></a> -<span class="sourceLineNo">186</span> return System.currentTimeMillis() - lastHeartBeat.get() >= getTimeout();<a name="line.186"></a> -<span class="sourceLineNo">187</span> }<a name="line.187"></a> -<span class="sourceLineNo">188</span><a name="line.188"></a> -<span class="sourceLineNo">189</span> /**<a name="line.189"></a> -<span class="sourceLineNo">190</span> * Updates timeout deadline for the lock.<a name="line.190"></a> -<span class="sourceLineNo">191</span> */<a name="line.191"></a> -<span class="sourceLineNo">192</span> public void updateHeartBeat() {<a name="line.192"></a> -<span class="sourceLineNo">193</span> lastHeartBeat.set(System.currentTimeMillis());<a name="line.193"></a> -<span class="sourceLineNo">194</span> if (LOG.isDebugEnabled()) {<a name="line.194"></a> -<span class="sourceLineNo">195</span> LOG.debug("Heartbeat " + toString());<a name="line.195"></a> -<span class="sourceLineNo">196</span> }<a name="line.196"></a> -<span class="sourceLineNo">197</span> }<a name="line.197"></a> -<span class="sourceLineNo">198</span><a name="line.198"></a> -<span class="sourceLineNo">199</span> /**<a name="line.199"></a> -<span class="sourceLineNo">200</span> * Re run the procedure after every timeout to write new WAL entries so we don't hold back old<a name="line.200"></a> -<span class="sourceLineNo">201</span> * WALs.<a name="line.201"></a> -<span class="sourceLineNo">202</span> * @return false, so procedure framework doesn't mark this procedure as failure.<a name="line.202"></a> -<span class="sourceLineNo">203</span> */<a name="line.203"></a> -<span class="sourceLineNo">204</span> @Override<a name="line.204"></a> -<span class="sourceLineNo">205</span> protected synchronized boolean setTimeoutFailure(final MasterProcedureEnv env) {<a name="line.205"></a> -<span class="sourceLineNo">206</span> synchronized (event) {<a name="line.206"></a> -<span class="sourceLineNo">207</span> if (LOG.isDebugEnabled()) LOG.debug("Timeout failure " + this.event);<a name="line.207"></a> -<span class="sourceLineNo">208</span> if (!event.isReady()) { // Maybe unlock() awakened the event.<a name="line.208"></a> -<span class="sourceLineNo">209</span> setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.209"></a> -<span class="sourceLineNo">210</span> if (LOG.isDebugEnabled()) LOG.debug("Calling wake on " + this.event);<a name="line.210"></a> -<span class="sourceLineNo">211</span> event.wake(env.getProcedureScheduler());<a name="line.211"></a> -<span class="sourceLineNo">212</span> }<a name="line.212"></a> -<span class="sourceLineNo">213</span> }<a name="line.213"></a> -<span class="sourceLineNo">214</span> return false; // false: do not mark the procedure as failed.<a name="line.214"></a> -<span class="sourceLineNo">215</span> }<a name="line.215"></a> -<span class="sourceLineNo">216</span><a name="line.216"></a> -<span class="sourceLineNo">217</span> // Can be called before procedure gets scheduled, in which case, the execute() will finish<a name="line.217"></a> 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class="sourceLineNo">228</span> }<a name="line.228"></a> -<span class="sourceLineNo">229</span> }<a name="line.229"></a> -<span class="sourceLineNo">230</span><a name="line.230"></a> -<span class="sourceLineNo">231</span> @Override<a name="line.231"></a> -<span class="sourceLineNo">232</span> protected Procedure<MasterProcedureEnv>[] execute(final MasterProcedureEnv env)<a name="line.232"></a> -<span class="sourceLineNo">233</span> throws ProcedureSuspendedException {<a name="line.233"></a> -<span class="sourceLineNo">234</span> // Local master locks don't store any state, so on recovery, simply finish this procedure<a name="line.234"></a> -<span class="sourceLineNo">235</span> // immediately.<a name="line.235"></a> -<span class="sourceLineNo">236</span> if (recoveredMasterLock) return null;<a name="line.236"></a> -<span class="sourceLineNo">237</span> if (lockAcquireLatch != null) {<a name="line.237"></a> -<span class="sourceLineNo">238</span> lockAcquireLatch.countDown();<a 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"UNLOCKED " : "TIMED OUT ") + toString());<a name="line.242"></a> -<span class="sourceLineNo">243</span> return null;<a name="line.243"></a> -<span class="sourceLineNo">244</span> }<a name="line.244"></a> -<span class="sourceLineNo">245</span> synchronized (event) {<a name="line.245"></a> -<span class="sourceLineNo">246</span> event.suspend();<a name="line.246"></a> -<span class="sourceLineNo">247</span> event.suspendIfNotReady(this);<a name="line.247"></a> -<span class="sourceLineNo">248</span> setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);<a name="line.248"></a> -<span class="sourceLineNo">249</span> }<a name="line.249"></a> -<span class="sourceLineNo">250</span> throw new ProcedureSuspendedException();<a name="line.250"></a> -<span class="sourceLineNo">251</span> }<a name="line.251"></a> -<span class="sourceLineNo">252</span><a name="line.252"></a> -<span class="sourceLineNo">253</span> @Override<a name="line.253"></a> -<span class="sourceLineNo">254</span> protected void rollback(final MasterProcedureEnv env) {<a name="line.254"></a> -<span class="sourceLineNo">255</span> throw new UnsupportedOperationException();<a name="line.255"></a> -<span class="sourceLineNo">256</span> }<a name="line.256"></a> -<span class="sourceLineNo">257</span><a name="line.257"></a> -<span class="sourceLineNo">258</span> @Override<a name="line.258"></a> -<span class="sourceLineNo">259</span> protected boolean abort(final MasterProcedureEnv env) {<a name="line.259"></a> -<span class="sourceLineNo">260</span> unlock(env);<a name="line.260"></a> -<span class="sourceLineNo">261</span> return true;<a name="line.261"></a> -<span class="sourceLineNo">262</span> }<a name="line.262"></a> -<span class="sourceLineNo">263</span><a name="line.263"></a> -<span class="sourceLineNo">264</span> @Override<a name="line.264"></a> -<span class="sourceLineNo">265</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.265"></a> -<span class="sourceLineNo">266</span> throws IOException {<a name="line.266"></a> -<span class="sourceLineNo">267</span> final LockProcedureData.Builder builder = LockProcedureData.newBuilder()<a name="line.267"></a> -<span class="sourceLineNo">268</span> .setLockType(LockServiceProtos.LockType.valueOf(type.name()))<a name="line.268"></a> -<span class="sourceLineNo">269</span> .setDescription(description);<a name="line.269"></a> -<span class="sourceLineNo">270</span> if (regionInfos != null) {<a name="line.270"></a> -<span class="sourceLineNo">271</span> for (int i = 0; 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i < state.getRegionInfoCount(); ++i) {<a name="line.293"></a> -<span class="sourceLineNo">294</span> regionInfos[i] = ProtobufUtil.toRegionInfo(state.getRegionInfo(i));<a name="line.294"></a> -<span class="sourceLineNo">295</span> }<a name="line.295"></a> -<span class="sourceLineNo">296</span> } else if (state.hasNamespace()) {<a name="line.296"></a> -<span class="sourceLineNo">297</span> namespace = state.getNamespace();<a name="line.297"></a> -<span class="sourceLineNo">298</span> } else if (state.hasTableName()) {<a name="line.298"></a> -<span class="sourceLineNo">299</span> tableName = ProtobufUtil.toTableName(state.getTableName());<a name="line.299"></a> -<span class="sourceLineNo">300</span> }<a name="line.300"></a> -<span class="sourceLineNo">301</span> recoveredMasterLock = state.getIsMasterLock();<a name="line.301"></a> -<span class="sourceLineNo">302</span> this.lock = setupLock();<a name="line.302"></a> -<span class="sourceLineNo">303</span> }<a name="line.303"></a> -<span class="sourceLineNo">304</span><a name="line.304"></a> -<span class="sourceLineNo">305</span> @Override<a name="line.305"></a> -<span class="sourceLineNo">306</span> protected LockState acquireLock(final MasterProcedureEnv env) {<a name="line.306"></a> -<span class="sourceLineNo">307</span> boolean ret = lock.acquireLock(env);<a name="line.307"></a> -<span class="sourceLineNo">308</span> locked.set(ret);<a name="line.308"></a> -<span class="sourceLineNo">309</span> hasLock = ret;<a name="line.309"></a> -<span class="sourceLineNo">310</span> if (ret) {<a name="line.310"></a> -<span class="sourceLineNo">311</span> if (LOG.isDebugEnabled()) {<a name="line.311"></a> -<span class="sourceLineNo">312</span> LOG.debug("LOCKED " + toString());<a name="line.312"></a> -<span class="sourceLineNo">313</span> }<a name="line.313"></a> -<span class="sourceLineNo">314</span> lastHeartBeat.set(System.currentTimeMillis());<a name="line.314"></a> -<span class="sourceLineNo">315</span> return LockState.LOCK_ACQUIRED;<a name="line.315"></a> -<span class="sourceLineNo">316</span> }<a name="line.316"></a> -<span class="sourceLineNo">317</span> LOG.warn("Failed acquire LOCK " + toString() + "; YIELDING");<a name="line.317"></a> -<span class="sourceLineNo">318</span> return LockState.LOCK_EVENT_WAIT;<a name="line.318"></a> -<span class="sourceLineNo">319</span> }<a name="line.319"></a> -<span class="sourceLineNo">320</span><a name="line.320"></a> -<span class="sourceLineNo">321</span> @Override<a name="line.321"></a> -<span class="sourceLineNo">322</span> protected void releaseLock(final MasterProcedureEnv env) {<a name="line.322"></a> -<span class="sourceLineNo">323</span> lock.releaseLock(env);<a name="line.323"></a> -<span class="sourceLineNo">324</span> hasLock = false;<a name="line.324"></a> -<span class="sourceLineNo">325</span> }<a name="line.325"></a> -<span class="sourceLineNo">326</span><a name="line.326"></a> -<span class="sourceLineNo">327</span> /**<a name="line.327"></a> -<span class="sourceLineNo">328</span> * On recovery, re-execute from start to acquire the locks.<a name="line.328"></a> -<span class="sourceLineNo">329</span> * Need to explicitly set it to RUNNABLE because the procedure might have been in WAITING_TIMEOUT<a name="line.329"></a> -<span class="sourceLineNo">330</span> * state when crash happened. 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This value is for client checks.<a name="line.81"></a> +<span class="sourceLineNo">082</span> private final AtomicBoolean locked = new AtomicBoolean(false);<a name="line.82"></a> +<span class="sourceLineNo">083</span> // Last system time (in ms) when client sent the heartbeat.<a name="line.83"></a> +<span class="sourceLineNo">084</span> // Initialize to system time for non-null value in case of recovery.<a name="line.84"></a> +<span class="sourceLineNo">085</span> private final AtomicLong lastHeartBeat = new AtomicLong();<a name="line.85"></a> +<span class="sourceLineNo">086</span> // Set to true when unlock request is received.<a name="line.86"></a> +<span class="sourceLineNo">087</span> private final AtomicBoolean unlock = new AtomicBoolean(false);<a name="line.87"></a> +<span class="sourceLineNo">088</span> // decreased when locks are acquired. Only used for local (with master process) purposes.<a name="line.88"></a> +<span class="sourceLineNo">089</span> // Setting latch to non-null value increases default timeout to<a name="line.89"></a> +<span class="sourceLineNo">090</span> // DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS (10 min) so that there is no need to heartbeat.<a name="line.90"></a> +<span class="sourceLineNo">091</span> private final CountDownLatch lockAcquireLatch;<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> @Override<a name="line.93"></a> +<span class="sourceLineNo">094</span> public TableName getTableName() {<a name="line.94"></a> +<span class="sourceLineNo">095</span> return tableName;<a name="line.95"></a> +<span class="sourceLineNo">096</span> }<a name="line.96"></a> +<span class="sourceLineNo">097</span><a name="line.97"></a> +<span class="sourceLineNo">098</span> @Override<a name="line.98"></a> +<span class="sourceLineNo">099</span> public TableOperationType getTableOperationType() {<a name="line.99"></a> +<span class="sourceLineNo">100</span> return opType;<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> private interface LockInterface {<a name="line.103"></a> +<span class="sourceLineNo">104</span> boolean acquireLock(MasterProcedureEnv env);<a name="line.104"></a> +<span class="sourceLineNo">105</span> void releaseLock(MasterProcedureEnv env);<a name="line.105"></a> +<span class="sourceLineNo">106</span> }<a name="line.106"></a> +<span class="sourceLineNo">107</span><a name="line.107"></a> +<span class="sourceLineNo">108</span> public LockProcedure() {<a name="line.108"></a> +<span class="sourceLineNo">109</span> lockAcquireLatch = null;<a name="line.109"></a> +<span class="sourceLineNo">110</span> }<a name="line.110"></a> +<span class="sourceLineNo">111</span><a name="line.111"></a> +<span class="sourceLineNo">112</span> private LockProcedure(final Configuration conf, final LockType type,<a name="line.112"></a> +<span class="sourceLineNo">113</span> final String description, final CountDownLatch lockAcquireLatch) {<a name="line.113"></a> +<span class="sourceLineNo">114</span> this.type = type;<a name="line.114"></a> +<span class="sourceLineNo">115</span> this.description = description;<a name="line.115"></a> +<span class="sourceLineNo">116</span> this.lockAcquireLatch = lockAcquireLatch;<a name="line.116"></a> +<span class="sourceLineNo">117</span> if (lockAcquireLatch == null) {<a name="line.117"></a> +<span class="sourceLineNo">118</span> setTimeout(conf.getInt(REMOTE_LOCKS_TIMEOUT_MS_CONF, DEFAULT_REMOTE_LOCKS_TIMEOUT_MS));<a name="line.118"></a> +<span class="sourceLineNo">119</span> } else {<a name="line.119"></a> +<span class="sourceLineNo">120</span> setTimeout(conf.getInt(LOCAL_MASTER_LOCKS_TIMEOUT_MS_CONF,<a name="line.120"></a> +<span class="sourceLineNo">121</span> DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS));<a name="line.121"></a> +<span class="sourceLineNo">122</span> }<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> /**<a name="line.125"></a> +<span class="sourceLineNo">126</span> * Constructor for namespace lock.<a name="line.126"></a> +<span class="sourceLineNo">127</span> * @param lockAcquireLatch if not null, the latch is decreased when lock is acquired.<a name="line.127"></a> +<span class="sourceLineNo">128</span> */<a name="line.128"></a> +<span class="sourceLineNo">129</span> public LockProcedure(final Configuration conf, final String namespace, final LockType type,<a name="line.129"></a> +<span class="sourceLineNo">130</span> final String description, final CountDownLatch lockAcquireLatch)<a name="line.130"></a> +<span class="sourceLineNo">131</span> throws IllegalArgumentException {<a name="line.131"></a> +<span class="sourceLineNo">132</span> this(conf, type, description, lockAcquireLatch);<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> if (namespace.isEmpty()) {<a name="line.134"></a> +<span class="sourceLineNo">135</span> throw new IllegalArgumentException("Empty namespace");<a name="line.135"></a> +<span class="sourceLineNo">136</span> }<a name="line.136"></a> +<span class="sourceLineNo">137</span><a name="line.137"></a> +<span class="sourceLineNo">138</span> this.namespace = namespace;<a name="line.138"></a> +<span class="sourceLineNo">139</span> this.lock = setupNamespaceLock();<a name="line.139"></a> +<span class="sourceLineNo">140</span> }<a name="line.140"></a> +<span class="sourceLineNo">141</span><a name="line.141"></a> +<span class="sourceLineNo">142</span> /**<a name="line.142"></a> +<span class="sourceLineNo">143</span> * Constructor for table lock.<a name="line.143"></a> +<span class="sourceLineNo">144</span> * @param lockAcquireLatch if not null, the latch is decreased when lock is acquired.<a name="line.144"></a> +<span class="sourceLineNo">145</span> */<a name="line.145"></a> +<span class="sourceLineNo">146</span> public LockProcedure(final Configuration conf, final TableName tableName, final LockType type,<a name="line.146"></a> +<span class="sourceLineNo">147</span> final String description, final CountDownLatch lockAcquireLatch)<a name="line.147"></a> +<span class="sourceLineNo">148</span> throws IllegalArgumentException {<a name="line.148"></a> +<span class="sourceLineNo">149</span> this(conf, type, description, lockAcquireLatch);<a name="line.149"></a> +<span class="sourceLineNo">150</span><a name="line.150"></a> +<span class="sourceLineNo">151</span> this.tableName = tableName;<a name="line.151"></a> +<span class="sourceLineNo">152</span> this.lock = setupTableLock();<a name="line.152"></a> +<span class="sourceLineNo">153</span> }<a name="line.153"></a> +<span class="sourceLineNo">154</span><a name="line.154"></a> +<span class="sourceLineNo">155</span> /**<a name="line.155"></a> +<span class="sourceLineNo">156</span> * Constructor for region lock(s).<a name="line.156"></a> +<span class="sourceLineNo">157</span> * @param lockAcquireLatch if not null, the latch is decreased when lock is acquired.<a name="line.157"></a> +<span class="sourceLineNo">158</span> * Useful for locks acquired locally from master process.<a name="line.158"></a> +<span class="sourceLineNo">159</span> * @throws IllegalArgumentException if all regions are not from same table.<a name="line.159"></a> +<span class="sourceLineNo">160</span> */<a name="line.160"></a> +<span class="sourceLineNo">161</span> public LockProcedure(final Configuration conf, final RegionInfo[] regionInfos,<a name="line.161"></a> +<span class="sourceLineNo">162</span> final LockType type, final String description, final CountDownLatch lockAcquireLatch)<a name="line.162"></a> +<span class="sourceLineNo">163</span> throws IllegalArgumentException {<a name="line.163"></a> +<span class="sourceLineNo">164</span> this(conf, type, description, lockAcquireLatch);<a name="line.164"></a> +<span class="sourceLineNo">165</span><a name="line.165"></a> +<span class="sourceLineNo">166</span> // Build RegionInfo from region names.<a name="line.166"></a> +<span class="sourceLineNo">167</span> if (regionInfos.length == 0) {<a name="line.167"></a> +<span class="sourceLineNo">168</span> throw new IllegalArgumentException("No regions specified for region lock");<a name="line.168"></a> +<span class="sourceLineNo">169</span> }<a name="line.169"></a> +<span class="sourceLineNo">170</span><a name="line.170"></a> +<span class="sourceLineNo">171</span> // check all regions belong to same table.<a name="line.171"></a> +<span class="sourceLineNo">172</span> final TableName regionTable = regionInfos[0].getTable();<a name="line.172"></a> +<span class="sourceLineNo">173</span> for (int i = 1; i < regionInfos.length; ++i) {<a name="line.173"></a> +<span class="sourceLineNo">174</span> if (!regionInfos[i].getTable().equals(regionTable)) {<a name="line.174"></a> +<span class="sourceLineNo">175</span> throw new IllegalArgumentException("All regions should be from same table");<a name="line.175"></a> +<span class="sourceLineNo">176</span> }<a name="line.176"></a> +<span class="sourceLineNo">177</span> }<a name="line.177"></a> +<span class="sourceLineNo">178</span><a name="line.178"></a> +<span class="sourceLineNo">179</span> this.regionInfos = regionInfos;<a name="line.179"></a> +<span class="sourceLineNo">180</span> this.lock = setupRegionLock();<a name="line.180"></a> +<span class="sourceLineNo">181</span> }<a name="line.181"></a> +<span class="sourceLineNo">182</span><a name="line.182"></a> +<span class="sourceLineNo">183</span> private boolean hasHeartbeatExpired() {<a name="line.183"></a> +<span class="sourceLineNo">184</span> return System.currentTimeMillis() - lastHeartBeat.get() >= getTimeout();<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span><a name="line.186"></a> +<span class="sourceLineNo">187</span> /**<a name="line.187"></a> +<span class="sourceLineNo">188</span> * Updates timeout deadline for the lock.<a name="line.188"></a> +<span class="sourceLineNo">189</span> */<a name="line.189"></a> +<span class="sourceLineNo">190</span> public void updateHeartBeat() {<a name="line.190"></a> +<span class="sourceLineNo">191</span> lastHeartBeat.set(System.currentTimeMillis());<a name="line.191"></a> +<span class="sourceLineNo">192</span> if (LOG.isDebugEnabled()) {<a name="line.192"></a> +<span class="sourceLineNo">193</span> LOG.debug("Heartbeat " + toString());<a name="line.193"></a> +<span class="sourceLineNo">194</span> }<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> /**<a name="line.197"></a> +<span class="sourceLineNo">198</span> * Re run the procedure after every timeout to write new WAL entries so we don't hold back old<a name="line.198"></a> +<span class="sourceLineNo">199</span> * WALs.<a name="line.199"></a> +<span class="sourceLineNo">200</span> * @return false, so procedure framework doesn't mark this procedure as failure.<a name="line.200"></a> +<span class="sourceLineNo">201</span> */<a name="line.201"></a> +<span class="sourceLineNo">202</span> @Override<a name="line.202"></a> +<span class="sourceLineNo">203</span> protected synchronized boolean setTimeoutFailure(final MasterProcedureEnv env) {<a name="line.203"></a> +<span class="sourceLineNo">204</span> synchronized (event) {<a name="line.204"></a> +<span class="sourceLineNo">205</span> if (LOG.isDebugEnabled()) LOG.debug("Timeout failure " + this.event);<a name="line.205"></a> +<span class="sourceLineNo">206</span> if (!event.isReady()) { // Maybe unlock() awakened the event.<a name="line.206"></a> +<span class="sourceLineNo">207</span> setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.207"></a> +<span class="sourceLineNo">208</span> if (LOG.isDebugEnabled()) LOG.debug("Calling wake on " + this.event);<a name="line.208"></a> +<span class="sourceLineNo">209</span> event.wake(env.getProcedureScheduler());<a name="line.209"></a> +<span class="sourceLineNo">210</span> }<a name="line.210"></a> +<span class="sourceLineNo">211</span> }<a name="line.211"></a> +<span class="sourceLineNo">212</span> return false; // false: do not mark the procedure as failed.<a name="line.212"></a> +<span class="sourceLineNo">213</span> }<a name="line.213"></a> +<span class="sourceLineNo">214</span><a name="line.214"></a> +<span class="sourceLineNo">215</span> // Can be called before procedure gets scheduled, in which case, the execute() will finish<a name="line.215"></a> +<span class="sourceLineNo">216</span> // immediately and release the underlying locks.<a name="line.216"></a> +<span class="sourceLineNo">217</span> public void unlock(final MasterProcedureEnv env) {<a name="line.217"></a> +<span class="sourceLineNo">218</span> unlock.set(true);<a name="line.218"></a> +<span class="sourceLineNo">219</span> locked.set(false);<a name="line.219"></a> +<span class="sourceLineNo">220</span> // Maybe timeout already awakened the event and the procedure has finished.<a name="line.220"></a> +<span class="sourceLineNo">221</span> synchronized (event) {<a name="line.221"></a> +<span class="sourceLineNo">222</span> if (!event.isReady()) {<a name="line.222"></a> +<span class="sourceLineNo">223</span> setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.223"></a> +<span class="sourceLineNo">224</span> event.wake(env.getProcedureScheduler());<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span> }<a name="line.226"></a> +<span class="sourceLineNo">227</span> }<a name="line.227"></a> +<span class="sourceLineNo">228</span><a name="line.228"></a> +<span class="sourceLineNo">229</span> @Override<a name="line.229"></a> +<span class="sourceLineNo">230</span> protected Procedure<MasterProcedureEnv>[] execute(final MasterProcedureEnv env)<a name="line.230"></a> +<span class="sourceLineNo">231</span> throws ProcedureSuspendedException {<a name="line.231"></a> +<span class="sourceLineNo">232</span> // Local master locks don't store any state, so on recovery, simply finish this procedure<a name="line.232"></a> +<span class="sourceLineNo">233</span> // immediately.<a name="line.233"></a> +<span class="sourceLineNo">234</span> if (recoveredMasterLock) return null;<a name="line.234"></a> +<span class="sourceLineNo">235</span> if (lockAcquireLatch != null) {<a name="line.235"></a> +<span class="sourceLineNo">236</span> lockAcquireLatch.countDown();<a name="line.236"></a> +<span class="sourceLineNo">237</span> }<a name="line.237"></a> +<span class="sourceLineNo">238</span> if (unlock.get() || hasHeartbeatExpired()) {<a name="line.238"></a> +<span class="sourceLineNo">239</span> locked.set(false);<a name="line.239"></a> +<span class="sourceLineNo">240</span> LOG.debug((unlock.get()? "UNLOCKED " : "TIMED OUT ") + toString());<a name="line.240"></a> +<span class="sourceLineNo">241</span> return null;<a name="line.241"></a> +<span class="sourceLineNo">242</span> }<a name="line.242"></a> +<span class="sourceLineNo">243</span> synchronized (event) {<a name="line.243"></a> +<span class="sourceLineNo">244</span> event.suspend();<a name="line.244"></a> +<span class="sourceLineNo">245</span> event.suspendIfNotReady(this);<a name="line.245"></a> +<span class="sourceLineNo">246</span> setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);<a name="line.246"></a> +<span class="sourceLineNo">247</span> }<a name="line.247"></a> +<span class="sourceLineNo">248</span> throw new ProcedureSuspendedException();<a name="line.248"></a> +<span class="sourceLineNo">249</span> }<a name="line.249"></a> +<span class="sourceLineNo">250</span><a name="line.250"></a> +<span class="sourceLineNo">251</span> @Override<a name="line.251"></a> +<span class="sourceLineNo">252</span> protected void rollback(final MasterProcedureEnv env) {<a name="line.252"></a> +<span class="sourceLineNo">253</span> throw new UnsupportedOperationException();<a name="line.253"></a> +<span class="sourceLineNo">254</span> }<a name="line.254"></a> +<span class="sourceLineNo">255</span><a name="line.255"></a> +<span class="sourceLineNo">256</span> @Override<a name="line.256"></a> +<span class="sourceLineNo">257</span> protected boolean abort(final MasterProcedureEnv env) {<a name="line.257"></a> +<span class="sourceLineNo">258</span> unlock(env);<a name="line.258"></a> +<span class="sourceLineNo">259</span> return true;<a name="line.259"></a> +<span class="sourceLineNo">260</span> }<a name="line.260"></a> +<span class="sourceLineNo">261</span><a name="line.261"></a> +<span class="sourceLineNo">262</span> @Override<a name="line.262"></a> +<span class="sourceLineNo">263</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.263"></a> +<span class="sourceLineNo">264</span> throws IOException {<a name="line.264"></a> +<span class="sourceLineNo">265</span> final LockProcedureData.Builder builder = LockProcedureData.newBuilder()<a name="line.265"></a> +<span class="sourceLineNo">266</span> .setLockType(LockServiceProtos.LockType.valueOf(type.name()))<a name="line.266"></a> +<span class="sourceLineNo">267</span> .setDescription(description);<a name="line.267"></a> +<span class="sourceLineNo">268</span> if (regionInfos != null) {<a name="line.268"></a> +<span class="sourceLineNo">269</span> for (int i = 0; i < regionInfos.length; ++i) {<a name="line.269"></a> +<span class="sourceLineNo">270</span> builder.addRegionInfo(ProtobufUtil.toRegionInfo(regionInfos[i]));<a name="line.270"></a> +<span class="sourceLineNo">271</span> }<a name="line.271"></a> +<span class="sourceLineNo">272</span> } else if (namespace != null) {<a name="line.272"></a> +<span class="sourceLineNo">273</span> builder.setNamespace(namespace);<a name="line.273"></a> +<span class="sourceLineNo">274</span> } else if (tableName != null) {<a name="line.274"></a> +<span class="sourceLineNo">275</span> builder.setTableName(ProtobufUtil.toProtoTableName(tableName));<a name="line.275"></a> +<span class="sourceLineNo">276</span> }<a name="line.276"></a> +<span class="sourceLineNo">277</span> if (lockAcquireLatch != null) {<a name="line.277"></a> +<span class="sourceLineNo">278</span> builder.setIsMasterLock(true);<a name="line.278"></a> +<span class="sourceLineNo">279</span> }<a name="line.279"></a> +<span class="sourceLineNo">280</span> serializer.serialize(builder.build());<a name="line.280"></a> +<span class="sourceLineNo">281</span> }<a name="line.281"></a> +<span class="sourceLineNo">282</span><a name="line.282"></a> +<span class="sourceLineNo">283</span> @Override<a name="line.283"></a> +<span class="sourceLineNo">284</span> protected void deserializeStateData(ProcedureStateSerializer serializer)<a name="line.284"></a> +<span class="sourceLineNo">285</span> throws IOException {<a name="line.285"></a> +<span class="sourceLineNo">286</span> final LockProcedureData state = serializer.deserialize(LockProcedureData.class);<a name="line.286"></a> +<span class="sourceLineNo">287</span> type = LockType.valueOf(state.getLockType().name());<a name="line.287"></a> +<span class="sourceLineNo">288</span> description = state.getDescription();<a name="line.288"></a> +<span class="sourceLineNo">289</span> if (state.getRegionInfoCount() > 0) {<a name="line.289"></a> +<span class="sourceLineNo">290</span> regionInfos = new RegionInfo[state.getRegionInfoCount()];<a name="line.290"></a> +<span class="sourceLineNo">291</span> for (int i = 0; i < state.getRegionInfoCount(); ++i) {<a name="line.291"></a> +<span class="sourceLineNo">292</span> regionInfos[i] = ProtobufUtil.toRegionInfo(state.getRegionInfo(i));<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span> } else if (state.hasNamespace()) {<a name="line.294"></a> +<span class="sourceLineNo">295</span> namespace = state.getNamespace();<a name="line.295"></a> +<span class="sourceLineNo">296</span> } else if (state.hasTableName()) {<a name="line.296"></a> +<span class="sourceLineNo">297</span> tableName = ProtobufUtil.toTableName(state.getTableName());<a name="line.297"></a> +<span class="sourceLineNo">298</span> }<a name="line.298"></a> +<span class="sourceLineNo">299</span> recoveredMasterLock = state.getIsMasterLock();<a name="line.299"></a> +<span class="sourceLineNo">300</span> this.lock = setupLock();<a name="line.300"></a> +<span class="sourceLineNo">301</span> }<a name="line.301"></a> +<span class="sourceLineNo">302</span><a name="line.302"></a> +<span class="sourceLineNo">303</span> @Override<a name="line.303"></a> +<span class="sourceLineNo">304</span> protected LockState acquireLock(final MasterProcedureEnv env) {<a name="line.304"></a> +<span class="sourceLineNo">305</span> boolean ret = lock.acquireLock(env);<a name="line.305"></a> +<span class="sourceLineNo">306</span> locked.set(ret);<a name="line.306"></a> +<span class="sourceLineNo">307</span> if (ret) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> if (LOG.isDebugEnabled()) {<a name="line.308"></a> +<span class="sourceLineNo">309</span> LOG.debug("LOCKED " + toString());<a name="line.309"></a> +<span class="sourceLineNo">310</span> }<a name="line.310"></a> +<span class="sourceLineNo">311</span> lastHeartBeat.set(System.currentTimeMillis());<a name="line.311"></a> +<span class="sourceLineNo">312</span> return LockState.LOCK_ACQUIRED;<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span> LOG.warn("Failed acquire LOCK " + toString() + "; YIELDING");<a name="line.314"></a> +<span class="sourceLineNo">315</span> return LockState.LOCK_EVENT_WAIT;<a name="line.315"></a> +<span class="sourceLineNo">316</span> }<a name="line.316"></a> +<span class="sourceLineNo">317</span><a name="line.317"></a> +<span class="sourceLineNo">318</span> @Override<a name="line.318"></a> +<span class="sourceLineNo">319</span> protected void releaseLock(final MasterProcedureEnv env) {<a name="line.319"></a> +<span class="sourceLineNo">320</span> lock.releaseLock(env);<a name="line.320"></a> +<span class="sourceLineNo">321</span> }<a name="line.321"></a> +<span class="sourceLineNo">322</span><a name="line.322"></a> +<span class="sourceLineNo">323</span> /**<a name="line.323"></a> +<span class="sourceLineNo">324</span> * On recovery, re-execute from start to acquire the locks.<a name="line.324"></a> +<span class="sourceLineNo">325</span> * Need to explicitly set it to RUNNABLE because the procedure might have been in WAITING_TIMEOUT<a name="line.325"></a> +<span class="sourceLineNo">326</span> * state when crash happened. 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+<span class="sourceLineNo">337</span> if (regionInfos != null) {<a name="line.337"></a> +<span class="sourceLineNo">338</span> builder.append(" regions=");<a name="line.338"></a> +<span class="sourceLineNo">339</span> for (int i = 0; i < regionInfos.length; ++i) {<a name="line.339"></a> +<span class="sourceLineNo">340</span> if (i > 0) builder.append(",");<a name="line.340"></a> +<span class="sourceLineNo">341</span> builder.append(regionInfos[i].getShortNameToLog());<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span> } else if (namespace != null) {<a name="line.343"></a> +<span class="sourceLineNo">344</span> builder.append(", namespace=").append(namespace);<a name="line.344"></a> +<span class="sourceLineNo">345</span> } else if (tableName != null) {<a name="line.345"></a> +<span class="sourceLineNo">346</span> builder.append(", tableName=").append(tableName);<a name="line.346"></a> +<span class="sourceLineNo">347</span> }<a name="line.347"></a> +<span class="sourceLineNo">348</span> builder.append(", type=").append(type);<a name="line.348"></a> +<span class="sourceLineNo">349</span> }<a name="line.349"></a> +<span class="sourceLineNo">350</span><a name="line.350"></a> +<span class="sourceLineNo">351</span> public LockType getType() {<a name="line.351"></a> +<span class="sourceLineNo">352</span> return type;<a name="line.352"></a> <span class="sourceLineNo">353</span> }<a name="line.353"></a> <span class="sourceLineNo">354</span><a name="line.354"></a> -<span class="sourceLineNo">355</span> public LockType getType() {<a name="line.355"></a> -<span class="sourceLineNo">356</span> return type;<a name="line.356"></a> -<span class="sourceLineNo">357</span> }<a name="line.357"></a> -<span class="sourceLineNo">358</span><a name="line.358"></a> -<span class="sourceLineNo">359</span> private LockInterface setupLock() throws IllegalArgumentException {<a name="line.359"></a> 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-<span class="sourceLineNo">371</span><a name="line.371"></a> -<span class="sourceLineNo">372</span> private LockInterface setupNamespaceLock() throws IllegalArgumentException {<a name="line.372"></a> -<span class="sourceLineNo">373</span> this.tableName = TableName.NAMESPACE_TABLE_NAME;<a name="line.373"></a> -<span class="sourceLineNo">374</span> switch (type) {<a name="line.374"></a> -<span class="sourceLineNo">375</span> case EXCLUSIVE:<a name="line.375"></a> -<span class="sourceLineNo">376</span> this.opType = TableOperationType.EDIT;<a name="line.376"></a> -<span class="sourceLineNo">377</span> return new NamespaceExclusiveLock();<a name="line.377"></a> -<span class="sourceLineNo">378</span> case SHARED:<a name="line.378"></a> -<span class="sourceLineNo">379</span> LOG.error("Shared lock on namespace not supported for " + toString());<a name="line.379"></a> -<span class="sourceLineNo">380</span> throw new IllegalArgumentException("Shared lock on namespace not supported");<a name="line.380"></a> -<span class="sourceLineNo">381</span> default:<a name="line.381"></a> -<span class="sourceLineNo">382</span> LOG.error("Unexpected lock type " + toString());<a name="line.382"></a> -<span class="sourceLineNo">383</span> throw new IllegalArgumentException("Wrong lock type: " + type.toString());<a name="line.383"></a> -<span class="sourceLineNo">384</span> }<a name="line.384"></a> -<span class="sourceLineNo">385</span> }<a name="line.385"></a> -<span class="sourceLineNo">386</span><a name="line.386"></a> -<span class="sourceLineNo">387</span> private LockInterface setupTableLock() throws IllegalArgumentException {<a name="line.387"></a> -<span class="sourceLineNo">388</span> switch (type) {<a name="line.388"></a> -<span class="sourceLineNo">389</span> case EXCLUSIVE:<a name="line.389"></a> -<span class="sourceLineNo">390</span> this.opType = TableOperationType.EDIT;<a name="line.390"></a> -<span class="sourceLineNo">391</span> return new TableExclusiveLock();<a name="line.391"></a> -<span class="sourceLineNo">392</span> case SHARED:<a name="line.392"></a> -<span class="sourceLineNo">393</span> this.opType = TableOperationType.READ;<a name="line.393"></a> -<span class="sourceLineNo">394</span> return new TableSharedLock();<a name="line.394"></a> -<span class="sourceLineNo">395</span> default:<a name="line.395"></a> -<span class="sourceLineNo">396</span> LOG.error("Unexpected lock type " + toString());<a name="line.396"></a> -<span class="sourceLineNo">397</span> throw new IllegalArgumentException("Wrong lock type:" + type.toString());<a name="line.397"></a> -<span class="sourceLineNo">398</span> }<a name="line.398"></a> -<span class="sourceLineNo">399</span> }<a name="line.399"></a> -<span class="sourceLineNo">400</span><a name="line.400"></a> -<span class="sourceLineNo">401</span> private LockInterface setupRegionLock() throws IllegalArgumentException {<a name="line.401"></a> -<span class="sourceLineNo">402</span> this.tableName = regionInfos[0].getTable();<a name="line.402"></a> -<span class="sourceLineNo">403</span> switch (type) {<a name="line.403"></a> -<span class="sourceLineNo">404</span> case EXCLUSIVE:<a name="line.404"></a> -<span class="sourceLineNo">405</span> this.opType = TableOperationType.REGION_EDIT;<a name="line.405"></a> -<span class="sourceLineNo">406</span> return new RegionExclusiveLock();<a name="line.406"></a> -<span class="sourceLineNo">407</span> default:<a name="line.407"></a> -<span class="sourceLineNo">408</span> LOG.error("Only exclusive lock supported on regions for " + toString());<a name="line.408"></a> -<span class="sourceLineNo">409</span> throw new IllegalArgumentException("Only exclusive lock supported on regions.");<a name="line.409"></a> -<span class="sourceLineNo">410</span> }<a name="line.410"></a> +<span class="sourceLineNo">355</span> private LockInterface setupLock() throws IllegalArgumentException {<a name="line.355"></a> +<span class="sourceLineNo">356</span> if (regionInfos != null) {<a name="line.356"></a> +<span class="sourceLineNo">357</span> return setupRegionLock();<a name="line.357"></a> +<span class="sourceLineNo">358</span> } else if (namespace != null) {<a name="line.358"></a> +<span class="sourceLineNo">359</span> return setupNamespaceLock();<a name="line.359"></a> +<span class="sourceLineNo">360</span> } else if (tableName != null) {<a name="line.360"></a> +<span class="sourceLineNo">361</span> return setupTableLock();<a name="line.361"></a> +<span class="sourceLineNo">362</span> } else {<a name="line.362"></a> +<span class="sourceLineNo">363</span> LOG.error("Unknown level specified in " + toString());<a name="line.363"></a> +<span class="sourceLineNo">364</span> throw new IllegalArgumentException("no namespace/table/region provided");<a name="line.364"></a> +<span class="sourceLineNo">365</span> }<a name="line.365"></a> +<span class="sourceLineNo">366</span> }<a name="line.366"></a> +<span class="sourceLineNo">367</span><a name="line.367"></a> +<span class="sourceLineNo">368</span> private LockInterface setupNamespaceLock() throws IllegalArgumentException {<a name="line.368"></a> +<span class="sourceLineNo">369</span> this.tableName = TableName.NAMESPACE_TABLE_NAME;<a name="line.369"></a> +<span class="sourceLineNo">370</span> switch (type) {<a name="line.370"></a> +<span class="sourceLineNo">371</span> case EXCLUSIVE:<a name="line.371"></a> +<span class="sourceLineNo">372</span> this.opType = TableOperationType.EDIT;<a name="line.372"></a> +<span class="sourceLineNo">373</span> return new NamespaceExclusiveLock();<a name="line.373"></a> +<span class="sourceLineNo">374</span> case SHARED:<a name="line.374"></a> +<span class="sourceLineNo">375</span> LOG.error("Shared lock on namespace not supported for " + toString());<a name="line.375"></a> +<span class="sourceLineNo">376</span> throw new IllegalArgumentException("Shared lock on namespace not supported");<a name="line.376"></a> +<span class="sourceLineNo">377</span> default:<a name="line.377"></a> +<span class="sourceLineNo">378</span> LOG.error("Unexpected lock type " + toString());<a name="line.378"></a> +<span class="sourceLineNo">379</span> throw new IllegalArgumentException("Wrong lock type: " + type.toString());<a name="line.379"></a> +<span class="sourceLineNo">380</span> }<a name="line.380"></a> +<span class="sourceLineNo">381</span> }<a name="line.381"></a> +<span class="sourceLineNo">382</span><a name="line.382"></a> +<span class="sourceLineNo">383</span> private LockInterface setupTableLock() throws IllegalArgumentException {<a name="line.383"></a> +<span class="sourceLineNo">384</span> switch (type) {<a name="line.384"></a> +<span class="sourceLineNo">385</span> case EXCLUSIVE:<a name="line.385"></a> +<span class="sourceLineNo">386</span> this.opType = TableOperationType.EDIT;<a name="line.386"></a> +<span class="sourceLineNo">387</span> return new TableExclusiveLock();<a name="line.387"></a> +<span class="sourceLineNo">388</span> case SHARED:<a name="line.388"></a> +<span class="sourceLineNo">389</span> this.opType = TableOperationType.READ;<a name="line.389"></a> +<span class="sourceLineNo">390</span> return new TableSharedLock();<a name="line.390"></a> +<span class="sourceLineNo">391</span> default:<a name="line.391"></a> +<span class="sourceLineNo">392</span> LOG.error("Unexpected lock type " + toString());<a name="line.392"></a> +<span class="sourceLineNo">393</span> throw new IllegalArgumentException("Wrong lock type:" + type.toString());<a name="line.393"></a> +<span class="sourceLineNo">394</span> }<a name="line.394"></a> +<span class="sourceLineNo">395</span> }<a name="line.395"></a> +<span class="sourceLineNo">396</span><a name="line.396"></a> +<span class="sourceLineNo">397</span> private LockInterface setupRegionLock() throws IllegalArgumentException {<a name="line.397"></a> +<span class="sourceLineNo">398</span> this.tableName = regionInfos[0].getTable();<a name="line.398"></a> +<span class="sourceLineNo">399</span> switch (type) {<a name="line.399"></a> +<span class="sourceLineNo">400</span> case EXCLUSIVE:<a name="line.400"></a> +<span class="sourceLineNo">401</span> this.opType = TableOperationType.REGION_EDIT;<a name="line.401"></a> +<span class="sourceLineNo">402</span> return new RegionExclusiveLock();<a name="line.402"></a> +<span class="sourceLineNo">403</span> default:<a name="line.403"></a> +<span class="sourceLineNo">404</span> LOG.error("Only exclusive lock supported on regions for " + toString());<a name="line.404"></a> +<span class="sourceLineNo">405</span> throw new IllegalArgumentException("Only exclusive lock supported on regions.");<a name="line.405"></a> +<span class="sourceLineNo">406</span> }<a name="line.406"></a> +<span class="sourceLineNo">407</span> }<a name="line.407"></a> +<span class="sourceLineNo">408</span><a name="line.408"></a> +<span class="sourceLineNo">409</span> public String getDescription() {<a name="line.409"></a> +<span class="sourceLineNo">410</span> return description;<a name="line.410"></a> <span class="sourceLineNo">411</span> }<a name="line.411"></a> <span class="sourceLineNo">412</span><a name="line.412"></a> -<span class="sourceLineNo">413</span> public String getDescription() {<a name="line.413"></a> -<span class="sourceLineNo">414</span> return description;<a name="line.414"></a> +<span class="sourceLineNo">413</span> public boolean isLocked() {<a name="line.413"></a> +<span class="sourceLineNo">414</span> return locked.get();<a name="line.414"></a> <span class="sourceLineNo">415</span> }<a name="line.415"></a> <span class="sourceLineNo">416</span><a name="line.416"></a> -<span class="sourceLineNo">417</span> public boolean isLocked() {<a name="line.417"></a> -<span class="sourceLineNo">418</span> return locked.get();<a name="line.418"></a> -<span class="sourceLineNo">419</span> }<a name="line.419"></a> -<span class="sourceLineNo">420</span><a name="line.420"></a> -<span class="sourceLineNo">421</span> @Override<a name="line.421"></a> -<span class="sourceLineNo">422</span> public boolean holdLock(final MasterProcedureEnv env) {<a name="line.422"></a> -<span class="sourceLineNo">423</span> return true;<a name="line.423"></a> -<span class="sourceLineNo">424</span> }<a name="line.424"></a> +<span class="sourceLineNo">417</span> @Override<a name="line.417"></a> +<span class="sourceLineNo">418</span> public boolean holdLock(final MasterProcedureEnv env) {<a name="line.418"></a> +<span class="sourceLineNo">419</span> return true;<a name="line.419"></a> +<span class="sourceLineNo">420</span> }<a name="line.420"></a> +<span class="sourceLineNo">421</span><a name="line.421"></a> +<span class="sourceLineNo">422</span> ///////////////////////<a name="line.422"></a> +<span class="sourceLineNo">423</span> // LOCK IMPLEMENTATIONS<a name="line.423"></a> +<span class="sourceLineNo">424</span> ///////////////////////<a name="line.424"></a> <span class="sourceLineNo">425</span><a name="line.425"></a> -<span class="sourceLineNo">426</span> @Override<a name="line.426"></a> -<span class="sourceLineNo">427</span> public boolean hasLock(final MasterProcedureEnv env) {<a name="line.427"></a> -<span class="sourceLineNo">428</span> return hasLock;<a name="line.428"></a> -<span class="sourceLineNo">429</span> }<a name="line.429"></a> -<span class="sourceLineNo">430</span><a name="line.430"></a> -<span class="sourceLineNo">431</span> ///////////////////////<a name="line.431"></a> -<span class="sourceLineNo">432</span> // LOCK IMPLEMENTATIONS<a name="line.432"></a> -<span class="sourceLineNo">433</span> ///////////////////////<a name="line.433"></a> -<span class="sourceLineNo">434</span><a name="line.434"></a> -<span class="sourceLineNo">435</span> private class TableExclusiveLock implements LockInterface {<a name="line.435"></a> -<span class="sourceLineNo">436</span> @Override<a name="line.436"></a> -<span class="sourceLineNo">437</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.437"></a> -<span class="sourceLineNo">438</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.438"></a> -<span class="sourceLineNo">439</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.439"></a> -<span class="sourceLineNo">440</span> return !env.getProcedureScheduler().waitTableExclusiveLock(LockProcedure.this, tableName);<a name="line.440"></a> -<span class="sourceLineNo">441</span> }<a name="line.441"></a> -<span class="sourceLineNo">442</span><a name="line.442"></a> -<span class="sourceLineNo">443</span> @Override<a name="line.443"></a> -<span class="sourceLineNo">444</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.444"></a> -<span class="sourceLineNo">445</span> env.getProcedureScheduler().wakeTableExclusiveLock(LockProcedure.this, tableName);<a name="line.445"></a> +<span class="sourceLineNo">426</span> private class TableExclusiveLock implements LockInterface {<a name="line.426"></a> +<span class="sourceLineNo">427</span> @Override<a name="line.427"></a> +<span class="sourceLineNo">428</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.428"></a> +<span class="sourceLineNo">429</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.429"></a> +<span class="sourceLineNo">430</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.430"></a> +<span class="sourceLineNo">431</span> return !env.getProcedureScheduler().waitTableExclusiveLock(LockProcedure.this, tableName);<a name="line.431"></a> +<span class="sourceLineNo">432</span> }<a name="line.432"></a> +<span class="sourceLineNo">433</span><a name="line.433"></a> +<span class="sourceLineNo">434</span> @Override<a name="line.434"></a> +<span class="sourceLineNo">435</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.435"></a> +<span class="sourceLineNo">436</span> env.getProcedureScheduler().wakeTableExclusiveLock(LockProcedure.this, tableName);<a name="line.436"></a> +<span class="sourceLineNo">437</span> }<a name="line.437"></a> +<span class="sourceLineNo">438</span> }<a name="line.438"></a> +<span class="sourceLineNo">439</span><a name="line.439"></a> +<span class="sourceLineNo">440</span> private class TableSharedLock implements LockInterface {<a name="line.440"></a> +<span class="sourceLineNo">441</span> @Override<a name="line.441"></a> +<span class="sourceLineNo">442</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.442"></a> +<span class="sourceLineNo">443</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.443"></a> +<span class="sourceLineNo">444</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.444"></a> +<span class="sourceLineNo">445</span> return !env.getProcedureScheduler().waitTableSharedLock(LockProcedure.this, tableName);<a name="line.445"></a> <span class="sourceLineNo">446</span> }<a name="line.446"></a> -<span class="sourceLineNo">447</span> }<a name="line.447"></a> -<span class="sourceLineNo">448</span><a name="line.448"></a> -<span class="sourceLineNo">449</span> private class TableSharedLock implements LockInterface {<a name="line.449"></a> -<span class="sourceLineNo">450</span> @Override<a name="line.450"></a> -<span class="sourceLineNo">451</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.451"></a> -<span class="sourceLineNo">452</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.452"></a> -<span class="sourceLineNo">453</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.453"></a> -<span class="sourceLineNo">454</span> return !env.getProcedureScheduler().waitTableSharedLock(LockProcedure.this, tableName);<a name="line.454"></a> -<span class="sourceLineNo">455</span> }<a name="line.455"></a> -<span class="sourceLineNo">456</span><a name="line.456"></a> -<span class="sourceLineNo">457</span> @Override<a name="line.457"></a> -<span class="sourceLineNo">458</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.458"></a> -<span class="sourceLineNo">459</span> env.getProcedureScheduler().wakeTableSharedLock(LockProcedure.this, tableName);<a name="line.459"></a> -<span class="sourceLineNo">460</span> }<a name="line.460"></a> -<span class="sourceLineNo">461</span> }<a name="line.461"></a> +<span class="sourceLineNo">447</span><a name="line.447"></a> +<span class="sourceLineNo">448</span> @Override<a name="line.448"></a> +<span class="sourceLineNo">449</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.449"></a> +<span class="sourceLineNo">450</span> env.getProcedureScheduler().wakeTableSharedLock(LockProcedure.this, tableName);<a name="line.450"></a> +<span class="sourceLineNo">451</span> }<a name="line.451"></a> +<span class="sourceLineNo">452</span> }<a name="line.452"></a> +<span class="sourceLineNo">453</span><a name="line.453"></a> +<span class="sourceLineNo">454</span> private class NamespaceExclusiveLock implements LockInterface {<a name="line.454"></a> +<span class="sourceLineNo">455</span> @Override<a name="line.455"></a> +<span class="sourceLineNo">456</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.456"></a> +<span class="sourceLineNo">457</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.457"></a> +<span class="sourceLineNo">458</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.458"></a> +<span class="sourceLineNo">459</span> return !env.getProcedureScheduler().waitNamespaceExclusiveLock(<a name="line.459"></a> +<span class="sourceLineNo">460</span> LockProcedure.this, namespace);<a name="line.460"></a> +<span class="sourceLineNo">461</span> }<a name="line.461"></a> <span class="sourceLineNo">462</span><a name="line.462"></a> -<span class="sourceLineNo">463</span> private class NamespaceExclusiveLock implements LockInterface {<a name="line.463"></a> -<span class="sourceLineNo">464</span> @Override<a name="line.464"></a> -<span class="sourceLineNo">465</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.465"></a> -<span class="sourceLineNo">466</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.466"></a> -<span class="sourceLineNo">467</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.467"></a> -<span class="sourceLineNo">468</span> return !env.getProcedureScheduler().waitNamespaceExclusiveLock(<a name="line.468"></a> -<span class="sourceLineNo">469</span> LockProcedure.this, namespace);<a name="line.469"></a> -<span class="sourceLineNo">470</span> }<a name="line.470"></a> -<span class="sourceLineNo">471</span><a name="line.471"></a> -<span class="sourceLineNo">472</span> @Override<a name="line.472"></a> -<span class="sourceLineNo">473</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.473"></a> -<span class="sourceLineNo">474</span> env.getProcedureScheduler().wakeNamespaceExclusiveLock(<a name="line.474"></a> -<span class="sourceLineNo">475</span> LockProcedure.this, namespace);<a name="line.475"></a> +<span class="sourceLineNo">463</span> @Override<a name="line.463"></a> +<span class="sourceLineNo">464</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.464"></a> +<span class="sourceLineNo">465</span> env.getProcedureScheduler().wakeNamespaceExclusiveLock(<a name="line.465"></a> +<span class="sourceLineNo">466</span> LockProcedure.this, namespace);<a name="line.466"></a> +<span class="sourceLineNo">467</span> }<a name="line.467"></a> +<span class="sourceLineNo">468</span> }<a name="line.468"></a> +<span class="sourceLineNo">469</span><a name="line.469"></a> +<span class="sourceLineNo">470</span> private class RegionExclusiveLock implements LockInterface {<a name="line.470"></a> +<span class="sourceLineNo">471</span> @Override<a name="line.471"></a> +<span class="sourceLineNo">472</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.472"></a> +<span class="sourceLineNo">473</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.473"></a> +<span class="sourceLineNo">474</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.474"></a> +<span class="sourceLineNo">475</span> return !env.getProcedureScheduler().waitRegions(LockProcedure.this, tableName, regionInfos);<a name="line.475"></a> <span class="sourceLineNo">476</span> }<a name="line.476"></a> -<span class="sourceLineNo">477</span> }<a name="line.477"></a> -<span class="sourceLineNo">478</span><a name="line.478"></a> -<span class="sourceLineNo">479</span> private class RegionExclusiveLock implements LockInterface {<a name="line.479"></a> -<span class="sourceLineNo">480</span> @Override<a name="line.480"></a> -<span class="sourceLineNo">481</span> public boolean acquireLock(final MasterProcedureEnv env) {<a name="line.481"></a> -<span class="sourceLineNo">482</span> // We invert return from waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a name="line.482"></a> -<span class="sourceLineNo">483</span> // to get the lock and false if you don't; i.e. you got the lock.<a name="line.483"></a> -<span class="sourceLineNo">484</span> return !env.getProcedureScheduler().waitRegions(LockProcedure.this, tableName, regionInfos);<a name="line.484"></a> -<span class="sourceLineNo">485</span> }<a name="line.485"></a> -<span class="sourceLineNo">486</span><a name="line.486"></a> -<span class="sourceLineNo">487</span> @Override<a name="line.487"></a> -<span class="sourceLineNo">488</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.488"></a> -<span class="sourceLineNo">489</span> env.getProcedureScheduler().wakeRegions(LockProcedure.this, tableName, regionInfos);<a name="line.489"></a> -<span class="sourceLineNo">490</span> }<a name="line.490"></a> -<span class="sourceLineNo">491</span> }<a name="line.491"></a> -<span class="sourceLineNo">492</span>}<a name="line.492"></a> +<span class="sourceLineNo">477</span><a name="line.477"></a> +<span class="sourceLineNo">478</span> @Override<a name="line.478"></a> +<span class="sourceLineNo">479</span> public void releaseLock(final MasterProcedureEnv env) {<a name="line.479"></a> +<span class="sourceLineNo">480</span> env.getProcedureScheduler().wakeRegions(LockProcedure.this, tableName, regionInfos);<a name="line.480"></a> +<span class="sourceLineNo">481</span> }<a name="line.481"></a> +<span class="sourceLineNo">482</span> }<a name="line.482"></a> +<span class="sourceLineNo">483</span>}<a name="line.483"></a>
