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Posted to commits@helix.apache.org by ol...@apache.org on 2013/01/31 23:04:46 UTC
svn commit: r1441217 [15/16] - in /incubator/helix/site-content: ./
apidocs/reference/ apidocs/reference/org/apache/helix/manager/zk/
helix-admin-webapp/ helix-core/ involved/ mockservice/ recipes/
recipes/distributed-lock-manager/ recipes/rabbitmq-con...
Modified: incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixManager.html
URL: http://svn.apache.org/viewvc/incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixManager.html?rev=1441217&r1=1441216&r2=1441217&view=diff
==============================================================================
--- incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixManager.html (original)
+++ incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixManager.html Thu Jan 31 22:04:40 2013
@@ -127,949 +127,983 @@
<a class="jxr_linenumber" name="117" href="#117">117</a> List<PreConnectCallback> _preConnectCallbacks =
<a class="jxr_linenumber" name="118" href="#118">118</a> <strong class="jxr_keyword">new</strong> LinkedList<PreConnectCallback>();
<a class="jxr_linenumber" name="119" href="#119">119</a> <a href="../../../../../org/apache/helix/controller/restlet/ZKPropertyTransferServer.html">ZKPropertyTransferServer</a> _transferServer = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="120" href="#120">120</a>
-<a class="jxr_linenumber" name="121" href="#121">121</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixManager.html">ZKHelixManager</a>(String clusterName,
-<a class="jxr_linenumber" name="122" href="#122">122</a> String instanceName,
-<a class="jxr_linenumber" name="123" href="#123">123</a> <a href="../../../../../org/apache/helix/InstanceType.html">InstanceType</a> instanceType,
-<a class="jxr_linenumber" name="124" href="#124">124</a> String zkConnectString) <strong class="jxr_keyword">throws</strong> Exception
-<a class="jxr_linenumber" name="125" href="#125">125</a> {
-<a class="jxr_linenumber" name="126" href="#126">126</a> logger.info(<span class="jxr_string">"Create a zk-based cluster manager. clusterName:"</span> + clusterName
-<a class="jxr_linenumber" name="127" href="#127">127</a> + <span class="jxr_string">", instanceName:"</span> + instanceName + <span class="jxr_string">", type:"</span> + instanceType + <span class="jxr_string">", zkSvr:"</span>
-<a class="jxr_linenumber" name="128" href="#128">128</a> + zkConnectString);
-<a class="jxr_linenumber" name="129" href="#129">129</a> <strong class="jxr_keyword">int</strong> sessionTimeoutInt = -1;
-<a class="jxr_linenumber" name="130" href="#130">130</a> <strong class="jxr_keyword">try</strong>
-<a class="jxr_linenumber" name="131" href="#131">131</a> {
-<a class="jxr_linenumber" name="132" href="#132">132</a> sessionTimeoutInt =
-<a class="jxr_linenumber" name="133" href="#133">133</a> Integer.parseInt(System.getProperty(<span class="jxr_string">"zk.session.timeout"</span>, <span class="jxr_string">""</span>
-<a class="jxr_linenumber" name="134" href="#134">134</a> + DEFAULT_SESSION_TIMEOUT));
-<a class="jxr_linenumber" name="135" href="#135">135</a> }
-<a class="jxr_linenumber" name="136" href="#136">136</a> <strong class="jxr_keyword">catch</strong> (NumberFormatException e)
-<a class="jxr_linenumber" name="137" href="#137">137</a> {
-<a class="jxr_linenumber" name="138" href="#138">138</a> logger.warn(<span class="jxr_string">"Exception while parsing session timeout: "</span>
-<a class="jxr_linenumber" name="139" href="#139">139</a> + System.getProperty(<span class="jxr_string">"zk.session.timeout"</span>, <span class="jxr_string">""</span> + DEFAULT_SESSION_TIMEOUT));
-<a class="jxr_linenumber" name="140" href="#140">140</a> }
-<a class="jxr_linenumber" name="141" href="#141">141</a> <strong class="jxr_keyword">if</strong> (sessionTimeoutInt > 0)
-<a class="jxr_linenumber" name="142" href="#142">142</a> {
-<a class="jxr_linenumber" name="143" href="#143">143</a> _sessionTimeout = sessionTimeoutInt;
+<a class="jxr_linenumber" name="120" href="#120">120</a> <strong class="jxr_keyword">int</strong> _flappingTimeWindowMs;
+<a class="jxr_linenumber" name="121" href="#121">121</a> <strong class="jxr_keyword">int</strong> _maxDisconnectThreshold;
+<a class="jxr_linenumber" name="122" href="#122">122</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> FLAPPING_TIME_WINDIOW = 300000; <em class="jxr_comment">// Default to 300 sec</em>
+<a class="jxr_linenumber" name="123" href="#123">123</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MAX_DISCONNECT_THRESHOLD = 5;
+<a class="jxr_linenumber" name="124" href="#124">124</a>
+<a class="jxr_linenumber" name="125" href="#125">125</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixManager.html">ZKHelixManager</a>(String clusterName,
+<a class="jxr_linenumber" name="126" href="#126">126</a> String instanceName,
+<a class="jxr_linenumber" name="127" href="#127">127</a> <a href="../../../../../org/apache/helix/InstanceType.html">InstanceType</a> instanceType,
+<a class="jxr_linenumber" name="128" href="#128">128</a> String zkConnectString) <strong class="jxr_keyword">throws</strong> Exception
+<a class="jxr_linenumber" name="129" href="#129">129</a> {
+<a class="jxr_linenumber" name="130" href="#130">130</a> logger.info(<span class="jxr_string">"Create a zk-based cluster manager. clusterName:"</span> + clusterName
+<a class="jxr_linenumber" name="131" href="#131">131</a> + <span class="jxr_string">", instanceName:"</span> + instanceName + <span class="jxr_string">", type:"</span> + instanceType + <span class="jxr_string">", zkSvr:"</span>
+<a class="jxr_linenumber" name="132" href="#132">132</a> + zkConnectString);
+<a class="jxr_linenumber" name="133" href="#133">133</a> _flappingTimeWindowMs = FLAPPING_TIME_WINDIOW;
+<a class="jxr_linenumber" name="134" href="#134">134</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="135" href="#135">135</a> {
+<a class="jxr_linenumber" name="136" href="#136">136</a> _flappingTimeWindowMs =
+<a class="jxr_linenumber" name="137" href="#137">137</a> Integer.parseInt(System.getProperty(<span class="jxr_string">"helixmanager.flappingTimeWindow"</span>, <span class="jxr_string">""</span>
+<a class="jxr_linenumber" name="138" href="#138">138</a> + FLAPPING_TIME_WINDIOW));
+<a class="jxr_linenumber" name="139" href="#139">139</a> }
+<a class="jxr_linenumber" name="140" href="#140">140</a> <strong class="jxr_keyword">catch</strong> (NumberFormatException e)
+<a class="jxr_linenumber" name="141" href="#141">141</a> {
+<a class="jxr_linenumber" name="142" href="#142">142</a> logger.warn(<span class="jxr_string">"Exception while parsing helixmanager.flappingTimeWindow: "</span>
+<a class="jxr_linenumber" name="143" href="#143">143</a> + System.getProperty(<span class="jxr_string">"helixmanager.flappingTimeWindow"</span>, <span class="jxr_string">""</span> + FLAPPING_TIME_WINDIOW));
<a class="jxr_linenumber" name="144" href="#144">144</a> }
-<a class="jxr_linenumber" name="145" href="#145">145</a> <strong class="jxr_keyword">else</strong>
-<a class="jxr_linenumber" name="146" href="#146">146</a> {
-<a class="jxr_linenumber" name="147" href="#147">147</a> _sessionTimeout = DEFAULT_SESSION_TIMEOUT;
-<a class="jxr_linenumber" name="148" href="#148">148</a> }
-<a class="jxr_linenumber" name="149" href="#149">149</a> <strong class="jxr_keyword">if</strong> (instanceName == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="150" href="#150">150</a> {
-<a class="jxr_linenumber" name="151" href="#151">151</a> <strong class="jxr_keyword">try</strong>
-<a class="jxr_linenumber" name="152" href="#152">152</a> {
-<a class="jxr_linenumber" name="153" href="#153">153</a> instanceName =
-<a class="jxr_linenumber" name="154" href="#154">154</a> InetAddress.getLocalHost().getCanonicalHostName() + <span class="jxr_string">"-"</span>
-<a class="jxr_linenumber" name="155" href="#155">155</a> + instanceType.toString();
-<a class="jxr_linenumber" name="156" href="#156">156</a> }
-<a class="jxr_linenumber" name="157" href="#157">157</a> <strong class="jxr_keyword">catch</strong> (UnknownHostException e)
-<a class="jxr_linenumber" name="158" href="#158">158</a> {
-<a class="jxr_linenumber" name="159" href="#159">159</a> <em class="jxr_comment">// can ignore it</em>
-<a class="jxr_linenumber" name="160" href="#160">160</a> logger.info(<span class="jxr_string">"Unable to get host name. Will set it to UNKNOWN, mostly ignorable"</span>,
-<a class="jxr_linenumber" name="161" href="#161">161</a> e);
-<a class="jxr_linenumber" name="162" href="#162">162</a> instanceName = <span class="jxr_string">"UNKNOWN"</span>;
-<a class="jxr_linenumber" name="163" href="#163">163</a> }
-<a class="jxr_linenumber" name="164" href="#164">164</a> }
-<a class="jxr_linenumber" name="165" href="#165">165</a>
-<a class="jxr_linenumber" name="166" href="#166">166</a> _clusterName = clusterName;
-<a class="jxr_linenumber" name="167" href="#167">167</a> _instanceName = instanceName;
-<a class="jxr_linenumber" name="168" href="#168">168</a> _instanceType = instanceType;
-<a class="jxr_linenumber" name="169" href="#169">169</a> _zkConnectString = zkConnectString;
-<a class="jxr_linenumber" name="170" href="#170">170</a> _zkStateChangeListener = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZkStateChangeListener.html">ZkStateChangeListener</a>(<strong class="jxr_keyword">this</strong>);
-<a class="jxr_linenumber" name="171" href="#171">171</a> _timer = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="172" href="#172">172</a>
-<a class="jxr_linenumber" name="173" href="#173">173</a> _handlers = <strong class="jxr_keyword">new</strong> ArrayList<CallbackHandler>();
-<a class="jxr_linenumber" name="174" href="#174">174</a>
-<a class="jxr_linenumber" name="175" href="#175">175</a> _messagingService = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/messaging/DefaultMessagingService.html">DefaultMessagingService</a>(<strong class="jxr_keyword">this</strong>);
-<a class="jxr_linenumber" name="176" href="#176">176</a>
-<a class="jxr_linenumber" name="177" href="#177">177</a> _version =
-<a class="jxr_linenumber" name="178" href="#178">178</a> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/tools/PropertiesReader.html">PropertiesReader</a>(<span class="jxr_string">"cluster-manager-version.properties"</span>).getProperty(<span class="jxr_string">"clustermanager.version"</span>);
-<a class="jxr_linenumber" name="179" href="#179">179</a>
-<a class="jxr_linenumber" name="180" href="#180">180</a> _stateMachEngine = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/participant/HelixStateMachineEngine.html">HelixStateMachineEngine</a>(<strong class="jxr_keyword">this</strong>);
-<a class="jxr_linenumber" name="181" href="#181">181</a>
-<a class="jxr_linenumber" name="182" href="#182">182</a> <em class="jxr_comment">// add all timer tasks</em>
-<a class="jxr_linenumber" name="183" href="#183">183</a> _controllerTimerTasks = <strong class="jxr_keyword">new</strong> ArrayList<HelixTimerTask>();
-<a class="jxr_linenumber" name="184" href="#184">184</a> <strong class="jxr_keyword">if</strong> (_instanceType == InstanceType.CONTROLLER)
-<a class="jxr_linenumber" name="185" href="#185">185</a> {
-<a class="jxr_linenumber" name="186" href="#186">186</a> _controllerTimerTasks.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/healthcheck/HealthStatsAggregationTask.html">HealthStatsAggregationTask</a>(<strong class="jxr_keyword">this</strong>));
-<a class="jxr_linenumber" name="187" href="#187">187</a> }
-<a class="jxr_linenumber" name="188" href="#188">188</a> }
-<a class="jxr_linenumber" name="189" href="#189">189</a>
-<a class="jxr_linenumber" name="190" href="#190">190</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isInstanceSetup()
-<a class="jxr_linenumber" name="191" href="#191">191</a> {
-<a class="jxr_linenumber" name="192" href="#192">192</a> <strong class="jxr_keyword">if</strong> (_instanceType == InstanceType.PARTICIPANT
-<a class="jxr_linenumber" name="193" href="#193">193</a> || _instanceType == InstanceType.CONTROLLER_PARTICIPANT)
-<a class="jxr_linenumber" name="194" href="#194">194</a> {
-<a class="jxr_linenumber" name="195" href="#195">195</a> <strong class="jxr_keyword">boolean</strong> isValid =
-<a class="jxr_linenumber" name="196" href="#196">196</a> _zkClient.exists(PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="197" href="#197">197</a> _clusterName,
-<a class="jxr_linenumber" name="198" href="#198">198</a> ConfigScopeProperty.PARTICIPANT.toString(),
-<a class="jxr_linenumber" name="199" href="#199">199</a> _instanceName))
-<a class="jxr_linenumber" name="200" href="#200">200</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.MESSAGES,
-<a class="jxr_linenumber" name="201" href="#201">201</a> _clusterName,
-<a class="jxr_linenumber" name="202" href="#202">202</a> _instanceName))
-<a class="jxr_linenumber" name="203" href="#203">203</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
-<a class="jxr_linenumber" name="204" href="#204">204</a> _clusterName,
-<a class="jxr_linenumber" name="205" href="#205">205</a> _instanceName))
-<a class="jxr_linenumber" name="206" href="#206">206</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.STATUSUPDATES,
-<a class="jxr_linenumber" name="207" href="#207">207</a> _clusterName,
-<a class="jxr_linenumber" name="208" href="#208">208</a> _instanceName))
-<a class="jxr_linenumber" name="209" href="#209">209</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.ERRORS,
-<a class="jxr_linenumber" name="210" href="#210">210</a> _clusterName,
-<a class="jxr_linenumber" name="211" href="#211">211</a> _instanceName));
-<a class="jxr_linenumber" name="212" href="#212">212</a>
-<a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">return</strong> isValid;
-<a class="jxr_linenumber" name="214" href="#214">214</a> }
-<a class="jxr_linenumber" name="215" href="#215">215</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="145" href="#145">145</a> _maxDisconnectThreshold = MAX_DISCONNECT_THRESHOLD;
+<a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="147" href="#147">147</a> {
+<a class="jxr_linenumber" name="148" href="#148">148</a> _maxDisconnectThreshold =
+<a class="jxr_linenumber" name="149" href="#149">149</a> Integer.parseInt(System.getProperty(<span class="jxr_string">"helixmanager.maxDisconnectThreshold"</span>, <span class="jxr_string">""</span>
+<a class="jxr_linenumber" name="150" href="#150">150</a> + MAX_DISCONNECT_THRESHOLD));
+<a class="jxr_linenumber" name="151" href="#151">151</a> }
+<a class="jxr_linenumber" name="152" href="#152">152</a> <strong class="jxr_keyword">catch</strong> (NumberFormatException e)
+<a class="jxr_linenumber" name="153" href="#153">153</a> {
+<a class="jxr_linenumber" name="154" href="#154">154</a> logger.warn(<span class="jxr_string">"Exception while parsing helixmanager.maxDisconnectThreshold: "</span>
+<a class="jxr_linenumber" name="155" href="#155">155</a> + System.getProperty(<span class="jxr_string">"helixmanager.maxDisconnectThreshold"</span>, <span class="jxr_string">""</span> + MAX_DISCONNECT_THRESHOLD));
+<a class="jxr_linenumber" name="156" href="#156">156</a> }
+<a class="jxr_linenumber" name="157" href="#157">157</a> <strong class="jxr_keyword">int</strong> sessionTimeoutInt = -1;
+<a class="jxr_linenumber" name="158" href="#158">158</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="159" href="#159">159</a> {
+<a class="jxr_linenumber" name="160" href="#160">160</a> sessionTimeoutInt =
+<a class="jxr_linenumber" name="161" href="#161">161</a> Integer.parseInt(System.getProperty(<span class="jxr_string">"helixmanager.flappingTimeWindow"</span>, <span class="jxr_string">""</span>
+<a class="jxr_linenumber" name="162" href="#162">162</a> + DEFAULT_SESSION_TIMEOUT));
+<a class="jxr_linenumber" name="163" href="#163">163</a> }
+<a class="jxr_linenumber" name="164" href="#164">164</a> <strong class="jxr_keyword">catch</strong> (NumberFormatException e)
+<a class="jxr_linenumber" name="165" href="#165">165</a> {
+<a class="jxr_linenumber" name="166" href="#166">166</a> logger.warn(<span class="jxr_string">"Exception while parsing session timeout: "</span>
+<a class="jxr_linenumber" name="167" href="#167">167</a> + System.getProperty(<span class="jxr_string">"zk.session.timeout"</span>, <span class="jxr_string">""</span> + DEFAULT_SESSION_TIMEOUT));
+<a class="jxr_linenumber" name="168" href="#168">168</a> }
+<a class="jxr_linenumber" name="169" href="#169">169</a> <strong class="jxr_keyword">if</strong> (sessionTimeoutInt > 0)
+<a class="jxr_linenumber" name="170" href="#170">170</a> {
+<a class="jxr_linenumber" name="171" href="#171">171</a> _sessionTimeout = sessionTimeoutInt;
+<a class="jxr_linenumber" name="172" href="#172">172</a> }
+<a class="jxr_linenumber" name="173" href="#173">173</a> <strong class="jxr_keyword">else</strong>
+<a class="jxr_linenumber" name="174" href="#174">174</a> {
+<a class="jxr_linenumber" name="175" href="#175">175</a> _sessionTimeout = DEFAULT_SESSION_TIMEOUT;
+<a class="jxr_linenumber" name="176" href="#176">176</a> }
+<a class="jxr_linenumber" name="177" href="#177">177</a> <strong class="jxr_keyword">if</strong> (instanceName == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="178" href="#178">178</a> {
+<a class="jxr_linenumber" name="179" href="#179">179</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="180" href="#180">180</a> {
+<a class="jxr_linenumber" name="181" href="#181">181</a> instanceName =
+<a class="jxr_linenumber" name="182" href="#182">182</a> InetAddress.getLocalHost().getCanonicalHostName() + <span class="jxr_string">"-"</span>
+<a class="jxr_linenumber" name="183" href="#183">183</a> + instanceType.toString();
+<a class="jxr_linenumber" name="184" href="#184">184</a> }
+<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">catch</strong> (UnknownHostException e)
+<a class="jxr_linenumber" name="186" href="#186">186</a> {
+<a class="jxr_linenumber" name="187" href="#187">187</a> <em class="jxr_comment">// can ignore it</em>
+<a class="jxr_linenumber" name="188" href="#188">188</a> logger.info(<span class="jxr_string">"Unable to get host name. Will set it to UNKNOWN, mostly ignorable"</span>,
+<a class="jxr_linenumber" name="189" href="#189">189</a> e);
+<a class="jxr_linenumber" name="190" href="#190">190</a> instanceName = <span class="jxr_string">"UNKNOWN"</span>;
+<a class="jxr_linenumber" name="191" href="#191">191</a> }
+<a class="jxr_linenumber" name="192" href="#192">192</a> }
+<a class="jxr_linenumber" name="193" href="#193">193</a>
+<a class="jxr_linenumber" name="194" href="#194">194</a> _clusterName = clusterName;
+<a class="jxr_linenumber" name="195" href="#195">195</a> _instanceName = instanceName;
+<a class="jxr_linenumber" name="196" href="#196">196</a> _instanceType = instanceType;
+<a class="jxr_linenumber" name="197" href="#197">197</a> _zkConnectString = zkConnectString;
+<a class="jxr_linenumber" name="198" href="#198">198</a> _zkStateChangeListener = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZkStateChangeListener.html">ZkStateChangeListener</a>(<strong class="jxr_keyword">this</strong>, _flappingTimeWindowMs, _maxDisconnectThreshold);
+<a class="jxr_linenumber" name="199" href="#199">199</a> _timer = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="200" href="#200">200</a>
+<a class="jxr_linenumber" name="201" href="#201">201</a> _handlers = <strong class="jxr_keyword">new</strong> ArrayList<CallbackHandler>();
+<a class="jxr_linenumber" name="202" href="#202">202</a>
+<a class="jxr_linenumber" name="203" href="#203">203</a> _messagingService = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/messaging/DefaultMessagingService.html">DefaultMessagingService</a>(<strong class="jxr_keyword">this</strong>);
+<a class="jxr_linenumber" name="204" href="#204">204</a>
+<a class="jxr_linenumber" name="205" href="#205">205</a> _version =
+<a class="jxr_linenumber" name="206" href="#206">206</a> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/tools/PropertiesReader.html">PropertiesReader</a>(<span class="jxr_string">"cluster-manager-version.properties"</span>).getProperty(<span class="jxr_string">"clustermanager.version"</span>);
+<a class="jxr_linenumber" name="207" href="#207">207</a>
+<a class="jxr_linenumber" name="208" href="#208">208</a> _stateMachEngine = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/participant/HelixStateMachineEngine.html">HelixStateMachineEngine</a>(<strong class="jxr_keyword">this</strong>);
+<a class="jxr_linenumber" name="209" href="#209">209</a>
+<a class="jxr_linenumber" name="210" href="#210">210</a> <em class="jxr_comment">// add all timer tasks</em>
+<a class="jxr_linenumber" name="211" href="#211">211</a> _controllerTimerTasks = <strong class="jxr_keyword">new</strong> ArrayList<HelixTimerTask>();
+<a class="jxr_linenumber" name="212" href="#212">212</a> <strong class="jxr_keyword">if</strong> (_instanceType == InstanceType.CONTROLLER)
+<a class="jxr_linenumber" name="213" href="#213">213</a> {
+<a class="jxr_linenumber" name="214" href="#214">214</a> _controllerTimerTasks.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/healthcheck/HealthStatsAggregationTask.html">HealthStatsAggregationTask</a>(<strong class="jxr_keyword">this</strong>));
+<a class="jxr_linenumber" name="215" href="#215">215</a> }
<a class="jxr_linenumber" name="216" href="#216">216</a> }
<a class="jxr_linenumber" name="217" href="#217">217</a>
-<a class="jxr_linenumber" name="218" href="#218">218</a> @Override
-<a class="jxr_linenumber" name="219" href="#219">219</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addIdealStateChangeListener(<strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/helix/IdealStateChangeListener.html">IdealStateChangeListener</a> listener) <strong class="jxr_keyword">throws</strong> Exception
-<a class="jxr_linenumber" name="220" href="#220">220</a> {
-<a class="jxr_linenumber" name="221" href="#221">221</a> logger.info(<span class="jxr_string">"ClusterManager.addIdealStateChangeListener()"</span>);
-<a class="jxr_linenumber" name="222" href="#222">222</a> checkConnected();
-<a class="jxr_linenumber" name="223" href="#223">223</a> <strong class="jxr_keyword">final</strong> String path =
-<a class="jxr_linenumber" name="224" href="#224">224</a> PropertyPathConfig.getPath(PropertyType.IDEALSTATES, _clusterName);
-<a class="jxr_linenumber" name="225" href="#225">225</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="226" href="#226">226</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="227" href="#227">227</a> listener,
-<a class="jxr_linenumber" name="228" href="#228">228</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeDataChanged,
-<a class="jxr_linenumber" name="229" href="#229">229</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="230" href="#230">230</a> IDEAL_STATE);
-<a class="jxr_linenumber" name="231" href="#231">231</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="232" href="#232">232</a> }
-<a class="jxr_linenumber" name="233" href="#233">233</a>
-<a class="jxr_linenumber" name="234" href="#234">234</a> @Override
-<a class="jxr_linenumber" name="235" href="#235">235</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addLiveInstanceChangeListener(<a href="../../../../../org/apache/helix/LiveInstanceChangeListener.html">LiveInstanceChangeListener</a> listener) <strong class="jxr_keyword">throws</strong> Exception
-<a class="jxr_linenumber" name="236" href="#236">236</a> {
-<a class="jxr_linenumber" name="237" href="#237">237</a> logger.info(<span class="jxr_string">"ClusterManager.addLiveInstanceChangeListener()"</span>);
-<a class="jxr_linenumber" name="238" href="#238">238</a> checkConnected();
-<a class="jxr_linenumber" name="239" href="#239">239</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().liveInstances().getPath();
-<a class="jxr_linenumber" name="240" href="#240">240</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="241" href="#241">241</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="242" href="#242">242</a> listener,
-<a class="jxr_linenumber" name="243" href="#243">243</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeDataChanged, EventType.NodeChildrenChanged,
-<a class="jxr_linenumber" name="244" href="#244">244</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="245" href="#245">245</a> LIVE_INSTANCE);
-<a class="jxr_linenumber" name="246" href="#246">246</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="247" href="#247">247</a> }
-<a class="jxr_linenumber" name="248" href="#248">248</a>
-<a class="jxr_linenumber" name="249" href="#249">249</a> @Override
-<a class="jxr_linenumber" name="250" href="#250">250</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addConfigChangeListener(<a href="../../../../../org/apache/helix/ConfigChangeListener.html">ConfigChangeListener</a> listener)
-<a class="jxr_linenumber" name="251" href="#251">251</a> {
-<a class="jxr_linenumber" name="252" href="#252">252</a> logger.info(<span class="jxr_string">"ClusterManager.addConfigChangeListener()"</span>);
-<a class="jxr_linenumber" name="253" href="#253">253</a> checkConnected();
-<a class="jxr_linenumber" name="254" href="#254">254</a> <strong class="jxr_keyword">final</strong> String path =
-<a class="jxr_linenumber" name="255" href="#255">255</a> PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="256" href="#256">256</a> _clusterName,
-<a class="jxr_linenumber" name="257" href="#257">257</a> ConfigScopeProperty.PARTICIPANT.toString());
-<a class="jxr_linenumber" name="258" href="#258">258</a>
-<a class="jxr_linenumber" name="259" href="#259">259</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="260" href="#260">260</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="261" href="#261">261</a> listener,
-<a class="jxr_linenumber" name="262" href="#262">262</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged },
-<a class="jxr_linenumber" name="263" href="#263">263</a> CONFIG);
-<a class="jxr_linenumber" name="264" href="#264">264</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="265" href="#265">265</a>
-<a class="jxr_linenumber" name="266" href="#266">266</a> }
-<a class="jxr_linenumber" name="267" href="#267">267</a>
-<a class="jxr_linenumber" name="268" href="#268">268</a> <em class="jxr_comment">// TODO: Decide if do we still need this since we are exposing</em>
-<a class="jxr_linenumber" name="269" href="#269">269</a> <em class="jxr_comment">// ClusterMessagingService</em>
-<a class="jxr_linenumber" name="270" href="#270">270</a> @Override
-<a class="jxr_linenumber" name="271" href="#271">271</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addMessageListener(<a href="../../../../../org/apache/helix/MessageListener.html">MessageListener</a> listener, String instanceName)
-<a class="jxr_linenumber" name="272" href="#272">272</a> {
-<a class="jxr_linenumber" name="273" href="#273">273</a> logger.info(<span class="jxr_string">"ClusterManager.addMessageListener() "</span> + instanceName);
-<a class="jxr_linenumber" name="274" href="#274">274</a> checkConnected();
-<a class="jxr_linenumber" name="275" href="#275">275</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().messages(instanceName).getPath();
-<a class="jxr_linenumber" name="276" href="#276">276</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="277" href="#277">277</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="278" href="#278">278</a> listener,
-<a class="jxr_linenumber" name="279" href="#279">279</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
-<a class="jxr_linenumber" name="280" href="#280">280</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="281" href="#281">281</a> MESSAGE);
-<a class="jxr_linenumber" name="282" href="#282">282</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="283" href="#283">283</a> }
-<a class="jxr_linenumber" name="284" href="#284">284</a>
-<a class="jxr_linenumber" name="285" href="#285">285</a> <strong class="jxr_keyword">void</strong> addControllerMessageListener(<a href="../../../../../org/apache/helix/MessageListener.html">MessageListener</a> listener)
-<a class="jxr_linenumber" name="286" href="#286">286</a> {
-<a class="jxr_linenumber" name="287" href="#287">287</a> logger.info(<span class="jxr_string">"ClusterManager.addControllerMessageListener()"</span>);
-<a class="jxr_linenumber" name="288" href="#288">288</a> checkConnected();
-<a class="jxr_linenumber" name="289" href="#289">289</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().controllerMessages().getPath();
-<a class="jxr_linenumber" name="290" href="#290">290</a>
-<a class="jxr_linenumber" name="291" href="#291">291</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="292" href="#292">292</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="293" href="#293">293</a> listener,
-<a class="jxr_linenumber" name="294" href="#294">294</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
-<a class="jxr_linenumber" name="295" href="#295">295</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="296" href="#296">296</a> MESSAGES_CONTROLLER);
-<a class="jxr_linenumber" name="297" href="#297">297</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="298" href="#298">298</a> }
-<a class="jxr_linenumber" name="299" href="#299">299</a>
-<a class="jxr_linenumber" name="300" href="#300">300</a> @Override
-<a class="jxr_linenumber" name="301" href="#301">301</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addCurrentStateChangeListener(<a href="../../../../../org/apache/helix/CurrentStateChangeListener.html">CurrentStateChangeListener</a> listener,
-<a class="jxr_linenumber" name="302" href="#302">302</a> String instanceName,
-<a class="jxr_linenumber" name="303" href="#303">303</a> String sessionId)
-<a class="jxr_linenumber" name="304" href="#304">304</a> {
-<a class="jxr_linenumber" name="305" href="#305">305</a> logger.info(<span class="jxr_string">"ClusterManager.addCurrentStateChangeListener() "</span> + instanceName + <span class="jxr_string">" "</span>
-<a class="jxr_linenumber" name="306" href="#306">306</a> + sessionId);
-<a class="jxr_linenumber" name="307" href="#307">307</a> checkConnected();
-<a class="jxr_linenumber" name="308" href="#308">308</a> <strong class="jxr_keyword">final</strong> String path =
-<a class="jxr_linenumber" name="309" href="#309">309</a> _helixAccessor.keyBuilder().currentStates(instanceName, sessionId).getPath();
-<a class="jxr_linenumber" name="310" href="#310">310</a>
-<a class="jxr_linenumber" name="311" href="#311">311</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="312" href="#312">312</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="313" href="#313">313</a> listener,
-<a class="jxr_linenumber" name="314" href="#314">314</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
-<a class="jxr_linenumber" name="315" href="#315">315</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="316" href="#316">316</a> CURRENT_STATE);
-<a class="jxr_linenumber" name="317" href="#317">317</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="318" href="#318">318</a> }
-<a class="jxr_linenumber" name="319" href="#319">319</a>
-<a class="jxr_linenumber" name="320" href="#320">320</a> @Override
-<a class="jxr_linenumber" name="321" href="#321">321</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addHealthStateChangeListener(<a href="../../../../../org/apache/helix/HealthStateChangeListener.html">HealthStateChangeListener</a> listener,
-<a class="jxr_linenumber" name="322" href="#322">322</a> String instanceName)
-<a class="jxr_linenumber" name="323" href="#323">323</a> {
-<a class="jxr_linenumber" name="324" href="#324">324</a> <em class="jxr_comment">// System.out.println("ZKClusterManager.addHealthStateChangeListener()");</em>
-<a class="jxr_linenumber" name="325" href="#325">325</a> <em class="jxr_comment">// TODO: re-form this for stats checking</em>
-<a class="jxr_linenumber" name="326" href="#326">326</a> logger.info(<span class="jxr_string">"ClusterManager.addHealthStateChangeListener()"</span> + instanceName);
-<a class="jxr_linenumber" name="327" href="#327">327</a> checkConnected();
-<a class="jxr_linenumber" name="328" href="#328">328</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().healthReports(instanceName).getPath();
-<a class="jxr_linenumber" name="329" href="#329">329</a>
-<a class="jxr_linenumber" name="330" href="#330">330</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="331" href="#331">331</a> createCallBackHandler(path, listener, <strong class="jxr_keyword">new</strong> EventType[] {
-<a class="jxr_linenumber" name="332" href="#332">332</a> EventType.NodeChildrenChanged, EventType.NodeDataChanged,
-<a class="jxr_linenumber" name="333" href="#333">333</a> EventType.NodeDeleted, EventType.NodeCreated }, HEALTH);
-<a class="jxr_linenumber" name="334" href="#334">334</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="335" href="#335">335</a> }
-<a class="jxr_linenumber" name="336" href="#336">336</a>
-<a class="jxr_linenumber" name="337" href="#337">337</a> @Override
-<a class="jxr_linenumber" name="338" href="#338">338</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addExternalViewChangeListener(<a href="../../../../../org/apache/helix/ExternalViewChangeListener.html">ExternalViewChangeListener</a> listener)
-<a class="jxr_linenumber" name="339" href="#339">339</a> {
-<a class="jxr_linenumber" name="340" href="#340">340</a> logger.info(<span class="jxr_string">"ClusterManager.addExternalViewChangeListener()"</span>);
-<a class="jxr_linenumber" name="341" href="#341">341</a> checkConnected();
-<a class="jxr_linenumber" name="342" href="#342">342</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().externalViews().getPath();
-<a class="jxr_linenumber" name="343" href="#343">343</a>
-<a class="jxr_linenumber" name="344" href="#344">344</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="345" href="#345">345</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="346" href="#346">346</a> listener,
-<a class="jxr_linenumber" name="347" href="#347">347</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeDataChanged,
-<a class="jxr_linenumber" name="348" href="#348">348</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="349" href="#349">349</a> EXTERNAL_VIEW);
-<a class="jxr_linenumber" name="350" href="#350">350</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="351" href="#351">351</a> }
-<a class="jxr_linenumber" name="352" href="#352">352</a>
-<a class="jxr_linenumber" name="353" href="#353">353</a> @Override
-<a class="jxr_linenumber" name="354" href="#354">354</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/HelixDataAccessor.html">HelixDataAccessor</a> getHelixDataAccessor()
-<a class="jxr_linenumber" name="355" href="#355">355</a> {
-<a class="jxr_linenumber" name="356" href="#356">356</a> checkConnected();
-<a class="jxr_linenumber" name="357" href="#357">357</a> <strong class="jxr_keyword">return</strong> _helixAccessor;
-<a class="jxr_linenumber" name="358" href="#358">358</a> }
-<a class="jxr_linenumber" name="359" href="#359">359</a>
-<a class="jxr_linenumber" name="360" href="#360">360</a> @Override
-<a class="jxr_linenumber" name="361" href="#361">361</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a> getConfigAccessor()
-<a class="jxr_linenumber" name="362" href="#362">362</a> {
-<a class="jxr_linenumber" name="363" href="#363">363</a> checkConnected();
-<a class="jxr_linenumber" name="364" href="#364">364</a> <strong class="jxr_keyword">return</strong> _configAccessor;
-<a class="jxr_linenumber" name="365" href="#365">365</a> }
-<a class="jxr_linenumber" name="366" href="#366">366</a>
-<a class="jxr_linenumber" name="367" href="#367">367</a> @Override
-<a class="jxr_linenumber" name="368" href="#368">368</a> <strong class="jxr_keyword">public</strong> String getClusterName()
-<a class="jxr_linenumber" name="369" href="#369">369</a> {
-<a class="jxr_linenumber" name="370" href="#370">370</a> <strong class="jxr_keyword">return</strong> _clusterName;
-<a class="jxr_linenumber" name="371" href="#371">371</a> }
-<a class="jxr_linenumber" name="372" href="#372">372</a>
-<a class="jxr_linenumber" name="373" href="#373">373</a> @Override
-<a class="jxr_linenumber" name="374" href="#374">374</a> <strong class="jxr_keyword">public</strong> String getInstanceName()
-<a class="jxr_linenumber" name="375" href="#375">375</a> {
-<a class="jxr_linenumber" name="376" href="#376">376</a> <strong class="jxr_keyword">return</strong> _instanceName;
-<a class="jxr_linenumber" name="377" href="#377">377</a> }
-<a class="jxr_linenumber" name="378" href="#378">378</a>
-<a class="jxr_linenumber" name="379" href="#379">379</a> @Override
-<a class="jxr_linenumber" name="380" href="#380">380</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> connect() <strong class="jxr_keyword">throws</strong> Exception
-<a class="jxr_linenumber" name="381" href="#381">381</a> {
-<a class="jxr_linenumber" name="382" href="#382">382</a> logger.info(<span class="jxr_string">"ClusterManager.connect()"</span>);
-<a class="jxr_linenumber" name="383" href="#383">383</a> <strong class="jxr_keyword">if</strong> (_zkStateChangeListener.isConnected())
-<a class="jxr_linenumber" name="384" href="#384">384</a> {
-<a class="jxr_linenumber" name="385" href="#385">385</a> logger.warn(<span class="jxr_string">"Cluster manager "</span> + _clusterName + <span class="jxr_string">" "</span> + _instanceName
-<a class="jxr_linenumber" name="386" href="#386">386</a> + <span class="jxr_string">" already connected"</span>);
-<a class="jxr_linenumber" name="387" href="#387">387</a> <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="388" href="#388">388</a> }
-<a class="jxr_linenumber" name="389" href="#389">389</a>
-<a class="jxr_linenumber" name="390" href="#390">390</a> <strong class="jxr_keyword">try</strong>
-<a class="jxr_linenumber" name="391" href="#391">391</a> {
-<a class="jxr_linenumber" name="392" href="#392">392</a> createClient(_zkConnectString);
-<a class="jxr_linenumber" name="393" href="#393">393</a> _messagingService.onConnected();
-<a class="jxr_linenumber" name="394" href="#394">394</a> }
-<a class="jxr_linenumber" name="395" href="#395">395</a> <strong class="jxr_keyword">catch</strong> (Exception e)
-<a class="jxr_linenumber" name="396" href="#396">396</a> {
-<a class="jxr_linenumber" name="397" href="#397">397</a> logger.error(e);
-<a class="jxr_linenumber" name="398" href="#398">398</a> disconnect();
-<a class="jxr_linenumber" name="399" href="#399">399</a> <strong class="jxr_keyword">throw</strong> e;
-<a class="jxr_linenumber" name="400" href="#400">400</a> }
-<a class="jxr_linenumber" name="401" href="#401">401</a> }
-<a class="jxr_linenumber" name="402" href="#402">402</a>
-<a class="jxr_linenumber" name="403" href="#403">403</a> @Override
-<a class="jxr_linenumber" name="404" href="#404">404</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> disconnect()
-<a class="jxr_linenumber" name="405" href="#405">405</a> {
+<a class="jxr_linenumber" name="218" href="#218">218</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isInstanceSetup()
+<a class="jxr_linenumber" name="219" href="#219">219</a> {
+<a class="jxr_linenumber" name="220" href="#220">220</a> <strong class="jxr_keyword">if</strong> (_instanceType == InstanceType.PARTICIPANT
+<a class="jxr_linenumber" name="221" href="#221">221</a> || _instanceType == InstanceType.CONTROLLER_PARTICIPANT)
+<a class="jxr_linenumber" name="222" href="#222">222</a> {
+<a class="jxr_linenumber" name="223" href="#223">223</a> <strong class="jxr_keyword">boolean</strong> isValid =
+<a class="jxr_linenumber" name="224" href="#224">224</a> _zkClient.exists(PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="225" href="#225">225</a> _clusterName,
+<a class="jxr_linenumber" name="226" href="#226">226</a> ConfigScopeProperty.PARTICIPANT.toString(),
+<a class="jxr_linenumber" name="227" href="#227">227</a> _instanceName))
+<a class="jxr_linenumber" name="228" href="#228">228</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.MESSAGES,
+<a class="jxr_linenumber" name="229" href="#229">229</a> _clusterName,
+<a class="jxr_linenumber" name="230" href="#230">230</a> _instanceName))
+<a class="jxr_linenumber" name="231" href="#231">231</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
+<a class="jxr_linenumber" name="232" href="#232">232</a> _clusterName,
+<a class="jxr_linenumber" name="233" href="#233">233</a> _instanceName))
+<a class="jxr_linenumber" name="234" href="#234">234</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.STATUSUPDATES,
+<a class="jxr_linenumber" name="235" href="#235">235</a> _clusterName,
+<a class="jxr_linenumber" name="236" href="#236">236</a> _instanceName))
+<a class="jxr_linenumber" name="237" href="#237">237</a> && _zkClient.exists(PropertyPathConfig.getPath(PropertyType.ERRORS,
+<a class="jxr_linenumber" name="238" href="#238">238</a> _clusterName,
+<a class="jxr_linenumber" name="239" href="#239">239</a> _instanceName));
+<a class="jxr_linenumber" name="240" href="#240">240</a>
+<a class="jxr_linenumber" name="241" href="#241">241</a> <strong class="jxr_keyword">return</strong> isValid;
+<a class="jxr_linenumber" name="242" href="#242">242</a> }
+<a class="jxr_linenumber" name="243" href="#243">243</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="244" href="#244">244</a> }
+<a class="jxr_linenumber" name="245" href="#245">245</a>
+<a class="jxr_linenumber" name="246" href="#246">246</a> @Override
+<a class="jxr_linenumber" name="247" href="#247">247</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addIdealStateChangeListener(<strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/helix/IdealStateChangeListener.html">IdealStateChangeListener</a> listener) <strong class="jxr_keyword">throws</strong> Exception
+<a class="jxr_linenumber" name="248" href="#248">248</a> {
+<a class="jxr_linenumber" name="249" href="#249">249</a> logger.info(<span class="jxr_string">"ClusterManager.addIdealStateChangeListener()"</span>);
+<a class="jxr_linenumber" name="250" href="#250">250</a> checkConnected();
+<a class="jxr_linenumber" name="251" href="#251">251</a> <strong class="jxr_keyword">final</strong> String path =
+<a class="jxr_linenumber" name="252" href="#252">252</a> PropertyPathConfig.getPath(PropertyType.IDEALSTATES, _clusterName);
+<a class="jxr_linenumber" name="253" href="#253">253</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="254" href="#254">254</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="255" href="#255">255</a> listener,
+<a class="jxr_linenumber" name="256" href="#256">256</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeDataChanged,
+<a class="jxr_linenumber" name="257" href="#257">257</a> EventType.NodeDeleted, EventType.NodeCreated },
+<a class="jxr_linenumber" name="258" href="#258">258</a> IDEAL_STATE);
+<a class="jxr_linenumber" name="259" href="#259">259</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="260" href="#260">260</a> }
+<a class="jxr_linenumber" name="261" href="#261">261</a>
+<a class="jxr_linenumber" name="262" href="#262">262</a> @Override
+<a class="jxr_linenumber" name="263" href="#263">263</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addLiveInstanceChangeListener(<a href="../../../../../org/apache/helix/LiveInstanceChangeListener.html">LiveInstanceChangeListener</a> listener) <strong class="jxr_keyword">throws</strong> Exception
+<a class="jxr_linenumber" name="264" href="#264">264</a> {
+<a class="jxr_linenumber" name="265" href="#265">265</a> logger.info(<span class="jxr_string">"ClusterManager.addLiveInstanceChangeListener()"</span>);
+<a class="jxr_linenumber" name="266" href="#266">266</a> checkConnected();
+<a class="jxr_linenumber" name="267" href="#267">267</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().liveInstances().getPath();
+<a class="jxr_linenumber" name="268" href="#268">268</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="269" href="#269">269</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="270" href="#270">270</a> listener,
+<a class="jxr_linenumber" name="271" href="#271">271</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeDataChanged, EventType.NodeChildrenChanged,
+<a class="jxr_linenumber" name="272" href="#272">272</a> EventType.NodeDeleted, EventType.NodeCreated },
+<a class="jxr_linenumber" name="273" href="#273">273</a> LIVE_INSTANCE);
+<a class="jxr_linenumber" name="274" href="#274">274</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="275" href="#275">275</a> }
+<a class="jxr_linenumber" name="276" href="#276">276</a>
+<a class="jxr_linenumber" name="277" href="#277">277</a> @Override
+<a class="jxr_linenumber" name="278" href="#278">278</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addConfigChangeListener(<a href="../../../../../org/apache/helix/ConfigChangeListener.html">ConfigChangeListener</a> listener)
+<a class="jxr_linenumber" name="279" href="#279">279</a> {
+<a class="jxr_linenumber" name="280" href="#280">280</a> logger.info(<span class="jxr_string">"ClusterManager.addConfigChangeListener()"</span>);
+<a class="jxr_linenumber" name="281" href="#281">281</a> checkConnected();
+<a class="jxr_linenumber" name="282" href="#282">282</a> <strong class="jxr_keyword">final</strong> String path =
+<a class="jxr_linenumber" name="283" href="#283">283</a> PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="284" href="#284">284</a> _clusterName,
+<a class="jxr_linenumber" name="285" href="#285">285</a> ConfigScopeProperty.PARTICIPANT.toString());
+<a class="jxr_linenumber" name="286" href="#286">286</a>
+<a class="jxr_linenumber" name="287" href="#287">287</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="288" href="#288">288</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="289" href="#289">289</a> listener,
+<a class="jxr_linenumber" name="290" href="#290">290</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged },
+<a class="jxr_linenumber" name="291" href="#291">291</a> CONFIG);
+<a class="jxr_linenumber" name="292" href="#292">292</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="293" href="#293">293</a>
+<a class="jxr_linenumber" name="294" href="#294">294</a> }
+<a class="jxr_linenumber" name="295" href="#295">295</a>
+<a class="jxr_linenumber" name="296" href="#296">296</a> <em class="jxr_comment">// TODO: Decide if do we still need this since we are exposing</em>
+<a class="jxr_linenumber" name="297" href="#297">297</a> <em class="jxr_comment">// ClusterMessagingService</em>
+<a class="jxr_linenumber" name="298" href="#298">298</a> @Override
+<a class="jxr_linenumber" name="299" href="#299">299</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addMessageListener(<a href="../../../../../org/apache/helix/MessageListener.html">MessageListener</a> listener, String instanceName)
+<a class="jxr_linenumber" name="300" href="#300">300</a> {
+<a class="jxr_linenumber" name="301" href="#301">301</a> logger.info(<span class="jxr_string">"ClusterManager.addMessageListener() "</span> + instanceName);
+<a class="jxr_linenumber" name="302" href="#302">302</a> checkConnected();
+<a class="jxr_linenumber" name="303" href="#303">303</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().messages(instanceName).getPath();
+<a class="jxr_linenumber" name="304" href="#304">304</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="305" href="#305">305</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="306" href="#306">306</a> listener,
+<a class="jxr_linenumber" name="307" href="#307">307</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
+<a class="jxr_linenumber" name="308" href="#308">308</a> EventType.NodeDeleted, EventType.NodeCreated },
+<a class="jxr_linenumber" name="309" href="#309">309</a> MESSAGE);
+<a class="jxr_linenumber" name="310" href="#310">310</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="311" href="#311">311</a> }
+<a class="jxr_linenumber" name="312" href="#312">312</a>
+<a class="jxr_linenumber" name="313" href="#313">313</a> <strong class="jxr_keyword">void</strong> addControllerMessageListener(<a href="../../../../../org/apache/helix/MessageListener.html">MessageListener</a> listener)
+<a class="jxr_linenumber" name="314" href="#314">314</a> {
+<a class="jxr_linenumber" name="315" href="#315">315</a> logger.info(<span class="jxr_string">"ClusterManager.addControllerMessageListener()"</span>);
+<a class="jxr_linenumber" name="316" href="#316">316</a> checkConnected();
+<a class="jxr_linenumber" name="317" href="#317">317</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().controllerMessages().getPath();
+<a class="jxr_linenumber" name="318" href="#318">318</a>
+<a class="jxr_linenumber" name="319" href="#319">319</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="320" href="#320">320</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="321" href="#321">321</a> listener,
+<a class="jxr_linenumber" name="322" href="#322">322</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
+<a class="jxr_linenumber" name="323" href="#323">323</a> EventType.NodeDeleted, EventType.NodeCreated },
+<a class="jxr_linenumber" name="324" href="#324">324</a> MESSAGES_CONTROLLER);
+<a class="jxr_linenumber" name="325" href="#325">325</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="326" href="#326">326</a> }
+<a class="jxr_linenumber" name="327" href="#327">327</a>
+<a class="jxr_linenumber" name="328" href="#328">328</a> @Override
+<a class="jxr_linenumber" name="329" href="#329">329</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addCurrentStateChangeListener(<a href="../../../../../org/apache/helix/CurrentStateChangeListener.html">CurrentStateChangeListener</a> listener,
+<a class="jxr_linenumber" name="330" href="#330">330</a> String instanceName,
+<a class="jxr_linenumber" name="331" href="#331">331</a> String sessionId)
+<a class="jxr_linenumber" name="332" href="#332">332</a> {
+<a class="jxr_linenumber" name="333" href="#333">333</a> logger.info(<span class="jxr_string">"ClusterManager.addCurrentStateChangeListener() "</span> + instanceName + <span class="jxr_string">" "</span>
+<a class="jxr_linenumber" name="334" href="#334">334</a> + sessionId);
+<a class="jxr_linenumber" name="335" href="#335">335</a> checkConnected();
+<a class="jxr_linenumber" name="336" href="#336">336</a> <strong class="jxr_keyword">final</strong> String path =
+<a class="jxr_linenumber" name="337" href="#337">337</a> _helixAccessor.keyBuilder().currentStates(instanceName, sessionId).getPath();
+<a class="jxr_linenumber" name="338" href="#338">338</a>
+<a class="jxr_linenumber" name="339" href="#339">339</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="340" href="#340">340</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="341" href="#341">341</a> listener,
+<a class="jxr_linenumber" name="342" href="#342">342</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
+<a class="jxr_linenumber" name="343" href="#343">343</a> EventType.NodeDeleted, EventType.NodeCreated },
+<a class="jxr_linenumber" name="344" href="#344">344</a> CURRENT_STATE);
+<a class="jxr_linenumber" name="345" href="#345">345</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="346" href="#346">346</a> }
+<a class="jxr_linenumber" name="347" href="#347">347</a>
+<a class="jxr_linenumber" name="348" href="#348">348</a> @Override
+<a class="jxr_linenumber" name="349" href="#349">349</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addHealthStateChangeListener(<a href="../../../../../org/apache/helix/HealthStateChangeListener.html">HealthStateChangeListener</a> listener,
+<a class="jxr_linenumber" name="350" href="#350">350</a> String instanceName)
+<a class="jxr_linenumber" name="351" href="#351">351</a> {
+<a class="jxr_linenumber" name="352" href="#352">352</a> <em class="jxr_comment">// System.out.println("ZKClusterManager.addHealthStateChangeListener()");</em>
+<a class="jxr_linenumber" name="353" href="#353">353</a> <em class="jxr_comment">// TODO: re-form this for stats checking</em>
+<a class="jxr_linenumber" name="354" href="#354">354</a> logger.info(<span class="jxr_string">"ClusterManager.addHealthStateChangeListener()"</span> + instanceName);
+<a class="jxr_linenumber" name="355" href="#355">355</a> checkConnected();
+<a class="jxr_linenumber" name="356" href="#356">356</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().healthReports(instanceName).getPath();
+<a class="jxr_linenumber" name="357" href="#357">357</a>
+<a class="jxr_linenumber" name="358" href="#358">358</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="359" href="#359">359</a> createCallBackHandler(path, listener, <strong class="jxr_keyword">new</strong> EventType[] {
+<a class="jxr_linenumber" name="360" href="#360">360</a> EventType.NodeChildrenChanged, EventType.NodeDataChanged,
+<a class="jxr_linenumber" name="361" href="#361">361</a> EventType.NodeDeleted, EventType.NodeCreated }, HEALTH);
+<a class="jxr_linenumber" name="362" href="#362">362</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="363" href="#363">363</a> }
+<a class="jxr_linenumber" name="364" href="#364">364</a>
+<a class="jxr_linenumber" name="365" href="#365">365</a> @Override
+<a class="jxr_linenumber" name="366" href="#366">366</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addExternalViewChangeListener(<a href="../../../../../org/apache/helix/ExternalViewChangeListener.html">ExternalViewChangeListener</a> listener)
+<a class="jxr_linenumber" name="367" href="#367">367</a> {
+<a class="jxr_linenumber" name="368" href="#368">368</a> logger.info(<span class="jxr_string">"ClusterManager.addExternalViewChangeListener()"</span>);
+<a class="jxr_linenumber" name="369" href="#369">369</a> checkConnected();
+<a class="jxr_linenumber" name="370" href="#370">370</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().externalViews().getPath();
+<a class="jxr_linenumber" name="371" href="#371">371</a>
+<a class="jxr_linenumber" name="372" href="#372">372</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
+<a class="jxr_linenumber" name="373" href="#373">373</a> createCallBackHandler(path,
+<a class="jxr_linenumber" name="374" href="#374">374</a> listener,
+<a class="jxr_linenumber" name="375" href="#375">375</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeDataChanged,
+<a class="jxr_linenumber" name="376" href="#376">376</a> EventType.NodeDeleted, EventType.NodeCreated },
+<a class="jxr_linenumber" name="377" href="#377">377</a> EXTERNAL_VIEW);
+<a class="jxr_linenumber" name="378" href="#378">378</a> addListener(callbackHandler);
+<a class="jxr_linenumber" name="379" href="#379">379</a> }
+<a class="jxr_linenumber" name="380" href="#380">380</a>
+<a class="jxr_linenumber" name="381" href="#381">381</a> @Override
+<a class="jxr_linenumber" name="382" href="#382">382</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/HelixDataAccessor.html">HelixDataAccessor</a> getHelixDataAccessor()
+<a class="jxr_linenumber" name="383" href="#383">383</a> {
+<a class="jxr_linenumber" name="384" href="#384">384</a> checkConnected();
+<a class="jxr_linenumber" name="385" href="#385">385</a> <strong class="jxr_keyword">return</strong> _helixAccessor;
+<a class="jxr_linenumber" name="386" href="#386">386</a> }
+<a class="jxr_linenumber" name="387" href="#387">387</a>
+<a class="jxr_linenumber" name="388" href="#388">388</a> @Override
+<a class="jxr_linenumber" name="389" href="#389">389</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a> getConfigAccessor()
+<a class="jxr_linenumber" name="390" href="#390">390</a> {
+<a class="jxr_linenumber" name="391" href="#391">391</a> checkConnected();
+<a class="jxr_linenumber" name="392" href="#392">392</a> <strong class="jxr_keyword">return</strong> _configAccessor;
+<a class="jxr_linenumber" name="393" href="#393">393</a> }
+<a class="jxr_linenumber" name="394" href="#394">394</a>
+<a class="jxr_linenumber" name="395" href="#395">395</a> @Override
+<a class="jxr_linenumber" name="396" href="#396">396</a> <strong class="jxr_keyword">public</strong> String getClusterName()
+<a class="jxr_linenumber" name="397" href="#397">397</a> {
+<a class="jxr_linenumber" name="398" href="#398">398</a> <strong class="jxr_keyword">return</strong> _clusterName;
+<a class="jxr_linenumber" name="399" href="#399">399</a> }
+<a class="jxr_linenumber" name="400" href="#400">400</a>
+<a class="jxr_linenumber" name="401" href="#401">401</a> @Override
+<a class="jxr_linenumber" name="402" href="#402">402</a> <strong class="jxr_keyword">public</strong> String getInstanceName()
+<a class="jxr_linenumber" name="403" href="#403">403</a> {
+<a class="jxr_linenumber" name="404" href="#404">404</a> <strong class="jxr_keyword">return</strong> _instanceName;
+<a class="jxr_linenumber" name="405" href="#405">405</a> }
<a class="jxr_linenumber" name="406" href="#406">406</a>
-<a class="jxr_linenumber" name="407" href="#407">407</a> <strong class="jxr_keyword">if</strong> (!isConnected())
-<a class="jxr_linenumber" name="408" href="#408">408</a> {
-<a class="jxr_linenumber" name="409" href="#409">409</a> logger.warn(<span class="jxr_string">"ClusterManager "</span> + _instanceName + <span class="jxr_string">" already disconnected"</span>);
-<a class="jxr_linenumber" name="410" href="#410">410</a> <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="411" href="#411">411</a> }
-<a class="jxr_linenumber" name="412" href="#412">412</a>
-<a class="jxr_linenumber" name="413" href="#413">413</a> logger.info(<span class="jxr_string">"disconnect "</span> + _instanceName + <span class="jxr_string">"("</span> + _instanceType + <span class="jxr_string">") from "</span>
-<a class="jxr_linenumber" name="414" href="#414">414</a> + _clusterName);
-<a class="jxr_linenumber" name="415" href="#415">415</a>
-<a class="jxr_linenumber" name="416" href="#416">416</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="417" href="#417">417</a> <em class="jxr_javadoccomment"> * shutdown thread pool first to avoid reset() being invoked in the middle of state</em>
-<a class="jxr_linenumber" name="418" href="#418">418</a> <em class="jxr_javadoccomment"> * transition</em>
-<a class="jxr_linenumber" name="419" href="#419">419</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="420" href="#420">420</a> _messagingService.getExecutor().shutDown();
-<a class="jxr_linenumber" name="421" href="#421">421</a> resetHandlers();
-<a class="jxr_linenumber" name="422" href="#422">422</a>
-<a class="jxr_linenumber" name="423" href="#423">423</a> _helixAccessor.shutdown();
-<a class="jxr_linenumber" name="424" href="#424">424</a>
-<a class="jxr_linenumber" name="425" href="#425">425</a> <strong class="jxr_keyword">if</strong> (_leaderElectionHandler != <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="426" href="#426">426</a> {
-<a class="jxr_linenumber" name="427" href="#427">427</a> _leaderElectionHandler.reset();
+<a class="jxr_linenumber" name="407" href="#407">407</a> @Override
+<a class="jxr_linenumber" name="408" href="#408">408</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> connect() <strong class="jxr_keyword">throws</strong> Exception
+<a class="jxr_linenumber" name="409" href="#409">409</a> {
+<a class="jxr_linenumber" name="410" href="#410">410</a> logger.info(<span class="jxr_string">"ClusterManager.connect()"</span>);
+<a class="jxr_linenumber" name="411" href="#411">411</a> <strong class="jxr_keyword">if</strong> (_zkStateChangeListener.isConnected())
+<a class="jxr_linenumber" name="412" href="#412">412</a> {
+<a class="jxr_linenumber" name="413" href="#413">413</a> logger.warn(<span class="jxr_string">"Cluster manager "</span> + _clusterName + <span class="jxr_string">" "</span> + _instanceName
+<a class="jxr_linenumber" name="414" href="#414">414</a> + <span class="jxr_string">" already connected"</span>);
+<a class="jxr_linenumber" name="415" href="#415">415</a> <strong class="jxr_keyword">return</strong>;
+<a class="jxr_linenumber" name="416" href="#416">416</a> }
+<a class="jxr_linenumber" name="417" href="#417">417</a>
+<a class="jxr_linenumber" name="418" href="#418">418</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="419" href="#419">419</a> {
+<a class="jxr_linenumber" name="420" href="#420">420</a> createClient(_zkConnectString);
+<a class="jxr_linenumber" name="421" href="#421">421</a> _messagingService.onConnected();
+<a class="jxr_linenumber" name="422" href="#422">422</a> }
+<a class="jxr_linenumber" name="423" href="#423">423</a> <strong class="jxr_keyword">catch</strong> (Exception e)
+<a class="jxr_linenumber" name="424" href="#424">424</a> {
+<a class="jxr_linenumber" name="425" href="#425">425</a> logger.error(e);
+<a class="jxr_linenumber" name="426" href="#426">426</a> disconnect();
+<a class="jxr_linenumber" name="427" href="#427">427</a> <strong class="jxr_keyword">throw</strong> e;
<a class="jxr_linenumber" name="428" href="#428">428</a> }
-<a class="jxr_linenumber" name="429" href="#429">429</a>
-<a class="jxr_linenumber" name="430" href="#430">430</a> <strong class="jxr_keyword">if</strong> (_participantHealthCheckInfoCollector != <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="431" href="#431">431</a> {
-<a class="jxr_linenumber" name="432" href="#432">432</a> _participantHealthCheckInfoCollector.stop();
-<a class="jxr_linenumber" name="433" href="#433">433</a> }
-<a class="jxr_linenumber" name="434" href="#434">434</a>
-<a class="jxr_linenumber" name="435" href="#435">435</a> <strong class="jxr_keyword">if</strong> (_timer != <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="436" href="#436">436</a> {
-<a class="jxr_linenumber" name="437" href="#437">437</a> _timer.cancel();
-<a class="jxr_linenumber" name="438" href="#438">438</a> _timer = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="439" href="#439">439</a> }
-<a class="jxr_linenumber" name="440" href="#440">440</a>
-<a class="jxr_linenumber" name="441" href="#441">441</a> <strong class="jxr_keyword">if</strong> (_instanceType == InstanceType.CONTROLLER)
-<a class="jxr_linenumber" name="442" href="#442">442</a> {
-<a class="jxr_linenumber" name="443" href="#443">443</a> stopTimerTasks();
-<a class="jxr_linenumber" name="444" href="#444">444</a> }
-<a class="jxr_linenumber" name="445" href="#445">445</a>
-<a class="jxr_linenumber" name="446" href="#446">446</a> <em class="jxr_comment">// unsubscribe accessor from controllerChange</em>
-<a class="jxr_linenumber" name="447" href="#447">447</a> _zkClient.unsubscribeAll();
+<a class="jxr_linenumber" name="429" href="#429">429</a> }
+<a class="jxr_linenumber" name="430" href="#430">430</a>
+<a class="jxr_linenumber" name="431" href="#431">431</a> @Override
+<a class="jxr_linenumber" name="432" href="#432">432</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> disconnect()
+<a class="jxr_linenumber" name="433" href="#433">433</a> {
+<a class="jxr_linenumber" name="434" href="#434">434</a> <strong class="jxr_keyword">if</strong> (!isConnected())
+<a class="jxr_linenumber" name="435" href="#435">435</a> {
+<a class="jxr_linenumber" name="436" href="#436">436</a> logger.error(<span class="jxr_string">"ClusterManager "</span> + _instanceName + <span class="jxr_string">" already disconnected"</span>);
+<a class="jxr_linenumber" name="437" href="#437">437</a> <strong class="jxr_keyword">return</strong>;
+<a class="jxr_linenumber" name="438" href="#438">438</a> }
+<a class="jxr_linenumber" name="439" href="#439">439</a> disconnectInternal();
+<a class="jxr_linenumber" name="440" href="#440">440</a> }
+<a class="jxr_linenumber" name="441" href="#441">441</a>
+<a class="jxr_linenumber" name="442" href="#442">442</a> <strong class="jxr_keyword">void</strong> disconnectInternal()
+<a class="jxr_linenumber" name="443" href="#443">443</a> {
+<a class="jxr_linenumber" name="444" href="#444">444</a> <em class="jxr_comment">// This function can be called when the connection are in bad state(e.g. flapping), </em>
+<a class="jxr_linenumber" name="445" href="#445">445</a> <em class="jxr_comment">// in which isConnected() could be false and we want to disconnect from cluster.</em>
+<a class="jxr_linenumber" name="446" href="#446">446</a> logger.info(<span class="jxr_string">"disconnect "</span> + _instanceName + <span class="jxr_string">"("</span> + _instanceType + <span class="jxr_string">") from "</span>
+<a class="jxr_linenumber" name="447" href="#447">447</a> + _clusterName);
<a class="jxr_linenumber" name="448" href="#448">448</a>
-<a class="jxr_linenumber" name="449" href="#449">449</a> _zkClient.close();
-<a class="jxr_linenumber" name="450" href="#450">450</a>
-<a class="jxr_linenumber" name="451" href="#451">451</a> <em class="jxr_comment">// HACK seems that zkClient is not sending DISCONNECT event</em>
-<a class="jxr_linenumber" name="452" href="#452">452</a> _zkStateChangeListener.disconnect();
-<a class="jxr_linenumber" name="453" href="#453">453</a> logger.info(<span class="jxr_string">"Cluster manager: "</span> + _instanceName + <span class="jxr_string">" disconnected"</span>);
-<a class="jxr_linenumber" name="454" href="#454">454</a> }
+<a class="jxr_linenumber" name="449" href="#449">449</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="450" href="#450">450</a> <em class="jxr_javadoccomment"> * shutdown thread pool first to avoid reset() being invoked in the middle of state</em>
+<a class="jxr_linenumber" name="451" href="#451">451</a> <em class="jxr_javadoccomment"> * transition</em>
+<a class="jxr_linenumber" name="452" href="#452">452</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="453" href="#453">453</a> _messagingService.getExecutor().shutDown();
+<a class="jxr_linenumber" name="454" href="#454">454</a> resetHandlers();
<a class="jxr_linenumber" name="455" href="#455">455</a>
-<a class="jxr_linenumber" name="456" href="#456">456</a> @Override
-<a class="jxr_linenumber" name="457" href="#457">457</a> <strong class="jxr_keyword">public</strong> String getSessionId()
-<a class="jxr_linenumber" name="458" href="#458">458</a> {
-<a class="jxr_linenumber" name="459" href="#459">459</a> checkConnected();
-<a class="jxr_linenumber" name="460" href="#460">460</a> <strong class="jxr_keyword">return</strong> _sessionId;
-<a class="jxr_linenumber" name="461" href="#461">461</a> }
+<a class="jxr_linenumber" name="456" href="#456">456</a> _helixAccessor.shutdown();
+<a class="jxr_linenumber" name="457" href="#457">457</a>
+<a class="jxr_linenumber" name="458" href="#458">458</a> <strong class="jxr_keyword">if</strong> (_leaderElectionHandler != <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="459" href="#459">459</a> {
+<a class="jxr_linenumber" name="460" href="#460">460</a> _leaderElectionHandler.reset();
+<a class="jxr_linenumber" name="461" href="#461">461</a> }
<a class="jxr_linenumber" name="462" href="#462">462</a>
-<a class="jxr_linenumber" name="463" href="#463">463</a> @Override
-<a class="jxr_linenumber" name="464" href="#464">464</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isConnected()
-<a class="jxr_linenumber" name="465" href="#465">465</a> {
-<a class="jxr_linenumber" name="466" href="#466">466</a> <strong class="jxr_keyword">return</strong> _zkStateChangeListener.isConnected();
-<a class="jxr_linenumber" name="467" href="#467">467</a> }
-<a class="jxr_linenumber" name="468" href="#468">468</a>
-<a class="jxr_linenumber" name="469" href="#469">469</a> @Override
-<a class="jxr_linenumber" name="470" href="#470">470</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getLastNotificationTime()
-<a class="jxr_linenumber" name="471" href="#471">471</a> {
-<a class="jxr_linenumber" name="472" href="#472">472</a> <strong class="jxr_keyword">return</strong> -1;
-<a class="jxr_linenumber" name="473" href="#473">473</a> }
-<a class="jxr_linenumber" name="474" href="#474">474</a>
-<a class="jxr_linenumber" name="475" href="#475">475</a> @Override
-<a class="jxr_linenumber" name="476" href="#476">476</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addControllerListener(<a href="../../../../../org/apache/helix/ControllerChangeListener.html">ControllerChangeListener</a> listener)
-<a class="jxr_linenumber" name="477" href="#477">477</a> {
-<a class="jxr_linenumber" name="478" href="#478">478</a> checkConnected();
-<a class="jxr_linenumber" name="479" href="#479">479</a> <strong class="jxr_keyword">final</strong> String path = _helixAccessor.keyBuilder().controller().getPath();
-<a class="jxr_linenumber" name="480" href="#480">480</a> logger.info(<span class="jxr_string">"Add controller listener at: "</span> + path);
-<a class="jxr_linenumber" name="481" href="#481">481</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> callbackHandler =
-<a class="jxr_linenumber" name="482" href="#482">482</a> createCallBackHandler(path,
-<a class="jxr_linenumber" name="483" href="#483">483</a> listener,
-<a class="jxr_linenumber" name="484" href="#484">484</a> <strong class="jxr_keyword">new</strong> EventType[] { EventType.NodeChildrenChanged,
-<a class="jxr_linenumber" name="485" href="#485">485</a> EventType.NodeDeleted, EventType.NodeCreated },
-<a class="jxr_linenumber" name="486" href="#486">486</a> ChangeType.CONTROLLER);
-<a class="jxr_linenumber" name="487" href="#487">487</a>
-<a class="jxr_linenumber" name="488" href="#488">488</a> <em class="jxr_comment">// System.out.println("add controller listeners to " + _instanceName +</em>
-<a class="jxr_linenumber" name="489" href="#489">489</a> <em class="jxr_comment">// " for " + _clusterName);</em>
-<a class="jxr_linenumber" name="490" href="#490">490</a> <em class="jxr_comment">// _handlers.add(callbackHandler);</em>
-<a class="jxr_linenumber" name="491" href="#491">491</a> addListener(callbackHandler);
-<a class="jxr_linenumber" name="492" href="#492">492</a> }
-<a class="jxr_linenumber" name="493" href="#493">493</a>
-<a class="jxr_linenumber" name="494" href="#494">494</a> @Override
-<a class="jxr_linenumber" name="495" href="#495">495</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> removeListener(Object listener)
-<a class="jxr_linenumber" name="496" href="#496">496</a> {
-<a class="jxr_linenumber" name="497" href="#497">497</a> logger.info(<span class="jxr_string">"remove listener: "</span> + listener + <span class="jxr_string">" from "</span> + _instanceName);
-<a class="jxr_linenumber" name="498" href="#498">498</a>
-<a class="jxr_linenumber" name="499" href="#499">499</a> <strong class="jxr_keyword">synchronized</strong> (<strong class="jxr_keyword">this</strong>)
-<a class="jxr_linenumber" name="500" href="#500">500</a> {
-<a class="jxr_linenumber" name="501" href="#501">501</a> Iterator<CallbackHandler> iterator = _handlers.iterator();
-<a class="jxr_linenumber" name="502" href="#502">502</a> <strong class="jxr_keyword">while</strong> (iterator.hasNext())
-<a class="jxr_linenumber" name="503" href="#503">503</a> {
-<a class="jxr_linenumber" name="504" href="#504">504</a> <a href="../../../../../org/apache/helix/manager/zk/CallbackHandler.html">CallbackHandler</a> handler = iterator.next();
-<a class="jxr_linenumber" name="505" href="#505">505</a> <em class="jxr_comment">// simply compare reference</em>
-<a class="jxr_linenumber" name="506" href="#506">506</a> <strong class="jxr_keyword">if</strong> (handler.getListener().equals(listener))
-<a class="jxr_linenumber" name="507" href="#507">507</a> {
-<a class="jxr_linenumber" name="508" href="#508">508</a> handler.reset();
-<a class="jxr_linenumber" name="509" href="#509">509</a> iterator.remove();
-<a class="jxr_linenumber" name="510" href="#510">510</a> }
-<a class="jxr_linenumber" name="511" href="#511">511</a> }
-<a class="jxr_linenumber" name="512" href="#512">512</a> }
-<a class="jxr_linenumber" name="513" href="#513">513</a>
-<a class="jxr_linenumber" name="514" href="#514">514</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="515" href="#515">515</a> }
-<a class="jxr_linenumber" name="516" href="#516">516</a>
-<a class="jxr_linenumber" name="517" href="#517">517</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> addLiveInstance()
-<a class="jxr_linenumber" name="518" href="#518">518</a> {
-<a class="jxr_linenumber" name="519" href="#519">519</a> <a href="../../../../../org/apache/helix/model/LiveInstance.html">LiveInstance</a> liveInstance = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/model/LiveInstance.html">LiveInstance</a>(_instanceName);
-<a class="jxr_linenumber" name="520" href="#520">520</a> liveInstance.setSessionId(_sessionId);
-<a class="jxr_linenumber" name="521" href="#521">521</a> liveInstance.setHelixVersion(_version);
-<a class="jxr_linenumber" name="522" href="#522">522</a> liveInstance.setLiveInstance(ManagementFactory.getRuntimeMXBean().getName());
-<a class="jxr_linenumber" name="523" href="#523">523</a>
-<a class="jxr_linenumber" name="524" href="#524">524</a> logger.info(<span class="jxr_string">"Add live instance: InstanceName: "</span> + _instanceName + <span class="jxr_string">" Session id:"</span>
-<a class="jxr_linenumber" name="525" href="#525">525</a> + _sessionId);
-<a class="jxr_linenumber" name="526" href="#526">526</a> <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = _helixAccessor.keyBuilder();
-<a class="jxr_linenumber" name="527" href="#527">527</a> <strong class="jxr_keyword">if</strong> (!_helixAccessor.createProperty(keyBuilder.liveInstance(_instanceName),
-<a class="jxr_linenumber" name="528" href="#528">528</a> liveInstance))
-<a class="jxr_linenumber" name="529" href="#529">529</a> {
-<a class="jxr_linenumber" name="530" href="#530">530</a> String errorMsg =
-<a class="jxr_linenumber" name="531" href="#531">531</a> <span class="jxr_string">"Fail to create live instance node after waiting, so quit. instance:"</span>
-<a class="jxr_linenumber" name="532" href="#532">532</a> + _instanceName;
-<a class="jxr_linenumber" name="533" href="#533">533</a> logger.warn(errorMsg);
-<a class="jxr_linenumber" name="534" href="#534">534</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(errorMsg);
-<a class="jxr_linenumber" name="535" href="#535">535</a>
-<a class="jxr_linenumber" name="536" href="#536">536</a> }
-<a class="jxr_linenumber" name="537" href="#537">537</a> String currentStatePathParent =
-<a class="jxr_linenumber" name="538" href="#538">538</a> PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
-<a class="jxr_linenumber" name="539" href="#539">539</a> _clusterName,
-<a class="jxr_linenumber" name="540" href="#540">540</a> _instanceName,
-<a class="jxr_linenumber" name="541" href="#541">541</a> getSessionId());
-<a class="jxr_linenumber" name="542" href="#542">542</a>
-<a class="jxr_linenumber" name="543" href="#543">543</a> <strong class="jxr_keyword">if</strong> (!_zkClient.exists(currentStatePathParent))
-<a class="jxr_linenumber" name="544" href="#544">544</a> {
-<a class="jxr_linenumber" name="545" href="#545">545</a> _zkClient.createPersistent(currentStatePathParent);
-<a class="jxr_linenumber" name="546" href="#546">546</a> logger.info(<span class="jxr_string">"Creating current state path "</span> + currentStatePathParent);
-<a class="jxr_linenumber" name="547" href="#547">547</a> }
-<a class="jxr_linenumber" name="548" href="#548">548</a> }
-<a class="jxr_linenumber" name="549" href="#549">549</a>
-<a class="jxr_linenumber" name="550" href="#550">550</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> startStatusUpdatedumpTask()
-<a class="jxr_linenumber" name="551" href="#551">551</a> {
-<a class="jxr_linenumber" name="552" href="#552">552</a> <strong class="jxr_keyword">long</strong> initialDelay = 30 * 60 * 1000;
-<a class="jxr_linenumber" name="553" href="#553">553</a> <strong class="jxr_keyword">long</strong> period = 120 * 60 * 1000;
-<a class="jxr_linenumber" name="554" href="#554">554</a> <strong class="jxr_keyword">int</strong> timeThresholdNoChange = 180 * 60 * 1000;
-<a class="jxr_linenumber" name="555" href="#555">555</a>
-<a class="jxr_linenumber" name="556" href="#556">556</a> <strong class="jxr_keyword">if</strong> (_timer == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="557" href="#557">557</a> {
-<a class="jxr_linenumber" name="558" href="#558">558</a> _timer = <strong class="jxr_keyword">new</strong> Timer(<strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="559" href="#559">559</a> _timer.scheduleAtFixedRate(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/monitoring/ZKPathDataDumpTask.html">ZKPathDataDumpTask</a>(<strong class="jxr_keyword">this</strong>,
-<a class="jxr_linenumber" name="560" href="#560">560</a> _zkClient,
-<a class="jxr_linenumber" name="561" href="#561">561</a> timeThresholdNoChange),
-<a class="jxr_linenumber" name="562" href="#562">562</a> initialDelay,
-<a class="jxr_linenumber" name="563" href="#563">563</a> period);
-<a class="jxr_linenumber" name="564" href="#564">564</a> }
-<a class="jxr_linenumber" name="565" href="#565">565</a> }
-<a class="jxr_linenumber" name="566" href="#566">566</a>
[... 1125 lines stripped ...]