http://git-wip-us.apache.org/repos/asf/hbase-site/blob/48bd3915/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.html
----------------------------------------------------------------------
diff --git
a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.html
b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.html
index 5db3c04..313bb69 100644
---
a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.html
+++
b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.html
@@ -28,9 +28,9 @@
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.BufferedReader;<a
name="line.21"></a>
<span class="sourceLineNo">022</span>import java.io.File;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.io.InterruptedIOException;<a
name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.io.IOException;<a
name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.io.InputStreamReader;<a
name="line.25"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a
name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.InputStreamReader;<a
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.io.InterruptedIOException;<a
name="line.25"></a>
<span class="sourceLineNo">026</span>import java.io.OutputStream;<a
name="line.26"></a>
<span class="sourceLineNo">027</span>import java.io.Reader;<a
name="line.27"></a>
<span class="sourceLineNo">028</span>import java.net.BindException;<a
name="line.28"></a>
@@ -42,9 +42,9 @@
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.commons.logging.Log;<a
name="line.35"></a>
<span class="sourceLineNo">036</span>import
org.apache.commons.logging.LogFactory;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import
org.apache.yetus.audience.InterfaceAudience;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import
org.apache.hadoop.conf.Configuration;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import
org.apache.hadoop.hbase.HConstants;<a name="line.39"></a>
+<span class="sourceLineNo">037</span>import
org.apache.hadoop.conf.Configuration;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import
org.apache.hadoop.hbase.HConstants;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import
org.apache.yetus.audience.InterfaceAudience;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import
org.apache.zookeeper.server.NIOServerCnxnFactory;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import
org.apache.zookeeper.server.ZooKeeperServer;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import
org.apache.zookeeper.server.persistence.FileTxnLog;<a name="line.42"></a>
@@ -195,293 +195,294 @@
<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> * @param baseDir<a name="line.190"></a>
-<span class="sourceLineNo">191</span> * @param numZooKeeperServers<a
name="line.191"></a>
-<span class="sourceLineNo">192</span> * @return ClientPort server bound to,
-1 if there was a<a name="line.192"></a>
-<span class="sourceLineNo">193</span> * binding problem and we
couldn't pick another port.<a name="line.193"></a>
-<span class="sourceLineNo">194</span> * @throws IOException<a
name="line.194"></a>
-<span class="sourceLineNo">195</span> * @throws InterruptedException<a
name="line.195"></a>
+<span class="sourceLineNo">190</span> * @param baseDir the base directory to
use<a name="line.190"></a>
+<span class="sourceLineNo">191</span> * @param numZooKeeperServers the
number of ZooKeeper servers<a name="line.191"></a>
+<span class="sourceLineNo">192</span> * @return ClientPort server bound to,
-1 if there was a binding problem and we couldn't pick<a name="line.192"></a>
+<span class="sourceLineNo">193</span> * another port.<a
name="line.193"></a>
+<span class="sourceLineNo">194</span> * @throws IOException if an operation
fails during the startup<a name="line.194"></a>
+<span class="sourceLineNo">195</span> * @throws InterruptedException if the
startup fails<a name="line.195"></a>
<span class="sourceLineNo">196</span> */<a name="line.196"></a>
<span class="sourceLineNo">197</span> public int startup(File baseDir, int
numZooKeeperServers) throws IOException,<a name="line.197"></a>
-<span class="sourceLineNo">198</span> InterruptedException {<a
name="line.198"></a>
-<span class="sourceLineNo">199</span> if (numZooKeeperServers <= 0)<a
name="line.199"></a>
+<span class="sourceLineNo">198</span> InterruptedException {<a
name="line.198"></a>
+<span class="sourceLineNo">199</span> if (numZooKeeperServers <= 0) {<a
name="line.199"></a>
<span class="sourceLineNo">200</span> return -1;<a name="line.200"></a>
-<span class="sourceLineNo">201</span><a name="line.201"></a>
-<span class="sourceLineNo">202</span> setupTestEnv();<a name="line.202"></a>
-<span class="sourceLineNo">203</span> shutdown();<a name="line.203"></a>
-<span class="sourceLineNo">204</span><a name="line.204"></a>
-<span class="sourceLineNo">205</span> int tentativePort = -1; // the seed
port<a name="line.205"></a>
-<span class="sourceLineNo">206</span> int currentClientPort;<a
name="line.206"></a>
-<span class="sourceLineNo">207</span><a name="line.207"></a>
-<span class="sourceLineNo">208</span> // running all the ZK servers<a
name="line.208"></a>
-<span class="sourceLineNo">209</span> for (int i = 0; i <
numZooKeeperServers; i++) {<a name="line.209"></a>
-<span class="sourceLineNo">210</span> File dir = new File(baseDir,
"zookeeper_"+i).getAbsoluteFile();<a name="line.210"></a>
-<span class="sourceLineNo">211</span> createDir(dir);<a
name="line.211"></a>
-<span class="sourceLineNo">212</span> int tickTimeToUse;<a
name="line.212"></a>
-<span class="sourceLineNo">213</span> if (this.tickTime > 0) {<a
name="line.213"></a>
-<span class="sourceLineNo">214</span> tickTimeToUse = this.tickTime;<a
name="line.214"></a>
-<span class="sourceLineNo">215</span> } else {<a name="line.215"></a>
-<span class="sourceLineNo">216</span> tickTimeToUse = TICK_TIME;<a
name="line.216"></a>
-<span class="sourceLineNo">217</span> }<a name="line.217"></a>
-<span class="sourceLineNo">218</span><a name="line.218"></a>
-<span class="sourceLineNo">219</span> // Set up client port - if we have
already had a list of valid ports, use it.<a name="line.219"></a>
-<span class="sourceLineNo">220</span> if (hasValidClientPortInList(i))
{<a name="line.220"></a>
-<span class="sourceLineNo">221</span> currentClientPort =
clientPortList.get(i);<a name="line.221"></a>
-<span class="sourceLineNo">222</span> } else {<a name="line.222"></a>
-<span class="sourceLineNo">223</span> tentativePort =
selectClientPort(tentativePort); // update the seed<a name="line.223"></a>
-<span class="sourceLineNo">224</span> currentClientPort =
tentativePort;<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> ZooKeeperServer server = new
ZooKeeperServer(dir, dir, tickTimeToUse);<a name="line.227"></a>
-<span class="sourceLineNo">228</span> // Setting {min,max}SessionTimeout
defaults to be the same as in Zookeeper<a name="line.228"></a>
-<span class="sourceLineNo">229</span>
server.setMinSessionTimeout(configuration.getInt("hbase.zookeeper.property.minSessionTimeout",
-1));<a name="line.229"></a>
-<span class="sourceLineNo">230</span>
server.setMaxSessionTimeout(configuration.getInt("hbase.zookeeper.property.maxSessionTimeout",
-1));<a name="line.230"></a>
-<span class="sourceLineNo">231</span> NIOServerCnxnFactory
standaloneServerFactory;<a name="line.231"></a>
-<span class="sourceLineNo">232</span> while (true) {<a
name="line.232"></a>
-<span class="sourceLineNo">233</span> try {<a name="line.233"></a>
-<span class="sourceLineNo">234</span> standaloneServerFactory = new
NIOServerCnxnFactory();<a name="line.234"></a>
-<span class="sourceLineNo">235</span>
standaloneServerFactory.configure(<a name="line.235"></a>
-<span class="sourceLineNo">236</span> new
InetSocketAddress(currentClientPort),<a name="line.236"></a>
-<span class="sourceLineNo">237</span>
configuration.getInt(HConstants.ZOOKEEPER_MAX_CLIENT_CNXNS,
HConstants.DEFAULT_ZOOKEPER_MAX_CLIENT_CNXNS));<a name="line.237"></a>
-<span class="sourceLineNo">238</span> } catch (BindException e) {<a
name="line.238"></a>
-<span class="sourceLineNo">239</span> LOG.debug("Failed binding ZK
Server to client port: " +<a name="line.239"></a>
-<span class="sourceLineNo">240</span> currentClientPort, e);<a
name="line.240"></a>
-<span class="sourceLineNo">241</span> // We're told to use some port
but it's occupied, fail<a name="line.241"></a>
-<span class="sourceLineNo">242</span> if
(hasValidClientPortInList(i)) {<a name="line.242"></a>
-<span class="sourceLineNo">243</span> return -1;<a
name="line.243"></a>
-<span class="sourceLineNo">244</span> }<a name="line.244"></a>
-<span class="sourceLineNo">245</span> // This port is already in use,
try to use another.<a name="line.245"></a>
-<span class="sourceLineNo">246</span> tentativePort =
selectClientPort(tentativePort);<a name="line.246"></a>
-<span class="sourceLineNo">247</span> currentClientPort =
tentativePort;<a name="line.247"></a>
-<span class="sourceLineNo">248</span> continue;<a name="line.248"></a>
-<span class="sourceLineNo">249</span> }<a name="line.249"></a>
-<span class="sourceLineNo">250</span> break;<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> // Start up this ZK server<a
name="line.253"></a>
-<span class="sourceLineNo">254</span>
standaloneServerFactory.startup(server);<a name="line.254"></a>
-<span class="sourceLineNo">255</span> // Runs a 'stat' against the
servers.<a name="line.255"></a>
-<span class="sourceLineNo">256</span> if
(!waitForServerUp(currentClientPort, connectionTimeout)) {<a
name="line.256"></a>
-<span class="sourceLineNo">257</span> throw new IOException("Waiting
for startup of standalone server");<a name="line.257"></a>
-<span class="sourceLineNo">258</span> }<a name="line.258"></a>
-<span class="sourceLineNo">259</span><a name="line.259"></a>
-<span class="sourceLineNo">260</span> // We have selected a port as a
client port. Update clientPortList if necessary.<a name="line.260"></a>
-<span class="sourceLineNo">261</span> if (clientPortList.size() <= i)
{ // it is not in the list, add the port<a name="line.261"></a>
-<span class="sourceLineNo">262</span>
clientPortList.add(currentClientPort);<a name="line.262"></a>
-<span class="sourceLineNo">263</span> }<a name="line.263"></a>
-<span class="sourceLineNo">264</span> else if (clientPortList.get(i)
<= 0) { // the list has invalid port, update with valid port<a
name="line.264"></a>
-<span class="sourceLineNo">265</span> clientPortList.remove(i);<a
name="line.265"></a>
-<span class="sourceLineNo">266</span> clientPortList.add(i,
currentClientPort);<a name="line.266"></a>
+<span class="sourceLineNo">201</span> }<a name="line.201"></a>
+<span class="sourceLineNo">202</span><a name="line.202"></a>
+<span class="sourceLineNo">203</span> setupTestEnv();<a name="line.203"></a>
+<span class="sourceLineNo">204</span> shutdown();<a name="line.204"></a>
+<span class="sourceLineNo">205</span><a name="line.205"></a>
+<span class="sourceLineNo">206</span> int tentativePort = -1; // the seed
port<a name="line.206"></a>
+<span class="sourceLineNo">207</span> int currentClientPort;<a
name="line.207"></a>
+<span class="sourceLineNo">208</span><a name="line.208"></a>
+<span class="sourceLineNo">209</span> // running all the ZK servers<a
name="line.209"></a>
+<span class="sourceLineNo">210</span> for (int i = 0; i <
numZooKeeperServers; i++) {<a name="line.210"></a>
+<span class="sourceLineNo">211</span> File dir = new File(baseDir,
"zookeeper_"+i).getAbsoluteFile();<a name="line.211"></a>
+<span class="sourceLineNo">212</span> createDir(dir);<a
name="line.212"></a>
+<span class="sourceLineNo">213</span> int tickTimeToUse;<a
name="line.213"></a>
+<span class="sourceLineNo">214</span> if (this.tickTime > 0) {<a
name="line.214"></a>
+<span class="sourceLineNo">215</span> tickTimeToUse = this.tickTime;<a
name="line.215"></a>
+<span class="sourceLineNo">216</span> } else {<a name="line.216"></a>
+<span class="sourceLineNo">217</span> tickTimeToUse = TICK_TIME;<a
name="line.217"></a>
+<span class="sourceLineNo">218</span> }<a name="line.218"></a>
+<span class="sourceLineNo">219</span><a name="line.219"></a>
+<span class="sourceLineNo">220</span> // Set up client port - if we have
already had a list of valid ports, use it.<a name="line.220"></a>
+<span class="sourceLineNo">221</span> if (hasValidClientPortInList(i))
{<a name="line.221"></a>
+<span class="sourceLineNo">222</span> currentClientPort =
clientPortList.get(i);<a name="line.222"></a>
+<span class="sourceLineNo">223</span> } else {<a name="line.223"></a>
+<span class="sourceLineNo">224</span> tentativePort =
selectClientPort(tentativePort); // update the seed<a name="line.224"></a>
+<span class="sourceLineNo">225</span> currentClientPort =
tentativePort;<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> ZooKeeperServer server = new
ZooKeeperServer(dir, dir, tickTimeToUse);<a name="line.228"></a>
+<span class="sourceLineNo">229</span> // Setting {min,max}SessionTimeout
defaults to be the same as in Zookeeper<a name="line.229"></a>
+<span class="sourceLineNo">230</span>
server.setMinSessionTimeout(configuration.getInt(<a name="line.230"></a>
+<span class="sourceLineNo">231</span>
"hbase.zookeeper.property.minSessionTimeout", -1));<a name="line.231"></a>
+<span class="sourceLineNo">232</span>
server.setMaxSessionTimeout(configuration.getInt(<a name="line.232"></a>
+<span class="sourceLineNo">233</span>
"hbase.zookeeper.property.maxSessionTimeout", -1));<a name="line.233"></a>
+<span class="sourceLineNo">234</span> NIOServerCnxnFactory
standaloneServerFactory;<a name="line.234"></a>
+<span class="sourceLineNo">235</span> while (true) {<a
name="line.235"></a>
+<span class="sourceLineNo">236</span> try {<a name="line.236"></a>
+<span class="sourceLineNo">237</span> standaloneServerFactory = new
NIOServerCnxnFactory();<a name="line.237"></a>
+<span class="sourceLineNo">238</span>
standaloneServerFactory.configure(<a name="line.238"></a>
+<span class="sourceLineNo">239</span> new
InetSocketAddress(currentClientPort),<a name="line.239"></a>
+<span class="sourceLineNo">240</span>
configuration.getInt(HConstants.ZOOKEEPER_MAX_CLIENT_CNXNS,<a
name="line.240"></a>
+<span class="sourceLineNo">241</span>
HConstants.DEFAULT_ZOOKEPER_MAX_CLIENT_CNXNS));<a name="line.241"></a>
+<span class="sourceLineNo">242</span> } catch (BindException e) {<a
name="line.242"></a>
+<span class="sourceLineNo">243</span> LOG.debug("Failed binding ZK
Server to client port: " +<a name="line.243"></a>
+<span class="sourceLineNo">244</span> currentClientPort, e);<a
name="line.244"></a>
+<span class="sourceLineNo">245</span> // We're told to use some port
but it's occupied, fail<a name="line.245"></a>
+<span class="sourceLineNo">246</span> if
(hasValidClientPortInList(i)) {<a name="line.246"></a>
+<span class="sourceLineNo">247</span> return -1;<a
name="line.247"></a>
+<span class="sourceLineNo">248</span> }<a name="line.248"></a>
+<span class="sourceLineNo">249</span> // This port is already in use,
try to use another.<a name="line.249"></a>
+<span class="sourceLineNo">250</span> tentativePort =
selectClientPort(tentativePort);<a name="line.250"></a>
+<span class="sourceLineNo">251</span> currentClientPort =
tentativePort;<a name="line.251"></a>
+<span class="sourceLineNo">252</span> continue;<a name="line.252"></a>
+<span class="sourceLineNo">253</span> }<a name="line.253"></a>
+<span class="sourceLineNo">254</span> break;<a name="line.254"></a>
+<span class="sourceLineNo">255</span> }<a name="line.255"></a>
+<span class="sourceLineNo">256</span><a name="line.256"></a>
+<span class="sourceLineNo">257</span> // Start up this ZK server<a
name="line.257"></a>
+<span class="sourceLineNo">258</span>
standaloneServerFactory.startup(server);<a name="line.258"></a>
+<span class="sourceLineNo">259</span> // Runs a 'stat' against the
servers.<a name="line.259"></a>
+<span class="sourceLineNo">260</span> if
(!waitForServerUp(currentClientPort, connectionTimeout)) {<a
name="line.260"></a>
+<span class="sourceLineNo">261</span> throw new IOException("Waiting
for startup of standalone server");<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> // We have selected a port as a
client port. Update clientPortList if necessary.<a name="line.264"></a>
+<span class="sourceLineNo">265</span> if (clientPortList.size() <= i)
{ // it is not in the list, add the port<a name="line.265"></a>
+<span class="sourceLineNo">266</span>
clientPortList.add(currentClientPort);<a name="line.266"></a>
<span class="sourceLineNo">267</span> }<a name="line.267"></a>
-<span class="sourceLineNo">268</span><a name="line.268"></a>
-<span class="sourceLineNo">269</span>
standaloneServerFactoryList.add(standaloneServerFactory);<a name="line.269"></a>
-<span class="sourceLineNo">270</span> zooKeeperServers.add(server);<a
name="line.270"></a>
-<span class="sourceLineNo">271</span> }<a name="line.271"></a>
+<span class="sourceLineNo">268</span> else if (clientPortList.get(i)
<= 0) { // the list has invalid port, update with valid port<a
name="line.268"></a>
+<span class="sourceLineNo">269</span> clientPortList.remove(i);<a
name="line.269"></a>
+<span class="sourceLineNo">270</span> clientPortList.add(i,
currentClientPort);<a name="line.270"></a>
+<span class="sourceLineNo">271</span> }<a name="line.271"></a>
<span class="sourceLineNo">272</span><a name="line.272"></a>
-<span class="sourceLineNo">273</span> // set the first one to be active ZK;
Others are backups<a name="line.273"></a>
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name="line.274"></a>
-<span class="sourceLineNo">275</span> started = true;<a name="line.275"></a>
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clientPortList.get(activeZKServerIndex);<a name="line.276"></a>
-<span class="sourceLineNo">277</span> LOG.info("Started
MiniZooKeeperCluster and ran successful 'stat' " +<a name="line.277"></a>
-<span class="sourceLineNo">278</span> "on client port=" +
clientPort);<a name="line.278"></a>
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name="line.279"></a>
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IOException {<a name="line.282"></a>
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-<span class="sourceLineNo">284</span> if (!dir.exists()) {<a
name="line.284"></a>
-<span class="sourceLineNo">285</span> dir.mkdirs();<a
name="line.285"></a>
-<span class="sourceLineNo">286</span> }<a name="line.286"></a>
-<span class="sourceLineNo">287</span> } catch (SecurityException e) {<a
name="line.287"></a>
-<span class="sourceLineNo">288</span> throw new IOException("creating
dir: " + dir, e);<a name="line.288"></a>
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-<span class="sourceLineNo">290</span> }<a name="line.290"></a>
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-<span class="sourceLineNo">292</span> /**<a name="line.292"></a>
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name="line.293"></a>
-<span class="sourceLineNo">294</span> */<a name="line.294"></a>
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IOException {<a name="line.295"></a>
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name="line.296"></a>
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standaloneServerFactoryList.size(); i++) {<a name="line.297"></a>
-<span class="sourceLineNo">298</span> NIOServerCnxnFactory
standaloneServerFactory =<a name="line.298"></a>
-<span class="sourceLineNo">299</span>
standaloneServerFactoryList.get(i);<a name="line.299"></a>
-<span class="sourceLineNo">300</span> int clientPort =
clientPortList.get(i);<a name="line.300"></a>
-<span class="sourceLineNo">301</span><a name="line.301"></a>
-<span class="sourceLineNo">302</span>
standaloneServerFactory.shutdown();<a name="line.302"></a>
-<span class="sourceLineNo">303</span> if (!waitForServerDown(clientPort,
connectionTimeout)) {<a name="line.303"></a>
-<span class="sourceLineNo">304</span> throw new IOException("Waiting
for shutdown of standalone server");<a name="line.304"></a>
-<span class="sourceLineNo">305</span> }<a name="line.305"></a>
-<span class="sourceLineNo">306</span> }<a name="line.306"></a>
-<span class="sourceLineNo">307</span>
standaloneServerFactoryList.clear();<a name="line.307"></a>
-<span class="sourceLineNo">308</span><a name="line.308"></a>
-<span class="sourceLineNo">309</span> for (ZooKeeperServer zkServer:
zooKeeperServers) {<a name="line.309"></a>
-<span class="sourceLineNo">310</span> //explicitly close ZKDatabase since
ZookeeperServer does not close them<a name="line.310"></a>
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clientPortList.remove(activeZKServerIndex);<a name="line.349"></a>
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zooKeeperServers.remove(activeZKServerIndex);<a name="line.350"></a>
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clientPort);<a name="line.282"></a>
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standaloneServerFactory =<a name="line.302"></a>
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standaloneServerFactoryList.get(i);<a name="line.303"></a>
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standaloneServerFactory.shutdown();<a name="line.306"></a>
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standaloneServerFactoryList.remove(activeZKServerIndex);<a name="line.351"></a>
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clientPortList.remove(activeZKServerIndex);<a name="line.352"></a>
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zooKeeperServers.remove(activeZKServerIndex);<a name="line.353"></a>
+<span class="sourceLineNo">354</span> LOG.info("Kill the current active ZK
servers in the cluster " +<a name="line.354"></a>
+<span class="sourceLineNo">355</span> "on client port: " +
clientPort);<a name="line.355"></a>
+<span class="sourceLineNo">356</span><a name="line.356"></a>
+<span class="sourceLineNo">357</span> if
(standaloneServerFactoryList.isEmpty()) {<a name="line.357"></a>
+<span class="sourceLineNo">358</span> // there is no backup servers;<a
name="line.358"></a>
+<span class="sourceLineNo">359</span> return -1;<a name="line.359"></a>
+<span class="sourceLineNo">360</span> }<a name="line.360"></a>
+<span class="sourceLineNo">361</span> clientPort =
clientPortList.get(activeZKServerIndex);<a name="line.361"></a>
+<span class="sourceLineNo">362</span> LOG.info("Activate a backup zk server
in the cluster " +<a name="line.362"></a>
+<span class="sourceLineNo">363</span> "on client port: " +
clientPort);<a name="line.363"></a>
+<span class="sourceLineNo">364</span> // return the next back zk server's
port<a name="line.364"></a>
+<span class="sourceLineNo">365</span> return clientPort;<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> /**<a name="line.368"></a>
+<span class="sourceLineNo">369</span> * Kill one back up ZK servers.<a
name="line.369"></a>
+<span class="sourceLineNo">370</span> *<a name="line.370"></a>
+<span class="sourceLineNo">371</span> * @throws IOException if waiting for
the shutdown of a server fails<a name="line.371"></a>
+<span class="sourceLineNo">372</span> */<a name="line.372"></a>
+<span class="sourceLineNo">373</span> public void
killOneBackupZooKeeperServer() throws IOException, InterruptedException {<a
name="line.373"></a>
+<span class="sourceLineNo">374</span> if (!started || activeZKServerIndex
< 0 || standaloneServerFactoryList.size() <= 1) {<a name="line.374"></a>
+<span class="sourceLineNo">375</span> return ;<a name="line.375"></a>
+<span class="sourceLineNo">376</span> }<a name="line.376"></a>
+<span class="sourceLineNo">377</span><a name="line.377"></a>
+<span class="sourceLineNo">378</span> int backupZKServerIndex =
activeZKServerIndex+1;<a name="line.378"></a>
+<span class="sourceLineNo">379</span> // Shutdown the current active one<a
name="line.379"></a>
+<span class="sourceLineNo">380</span> NIOServerCnxnFactory
standaloneServerFactory =<a name="line.380"></a>
+<span class="sourceLineNo">381</span>
standaloneServerFactoryList.get(backupZKServerIndex);<a name="line.381"></a>
+<span class="sourceLineNo">382</span> int clientPort =
clientPortList.get(backupZKServerIndex);<a name="line.382"></a>
+<span class="sourceLineNo">383</span><a name="line.383"></a>
+<span class="sourceLineNo">384</span> standaloneServerFactory.shutdown();<a
name="line.384"></a>
+<span class="sourceLineNo">385</span> if (!waitForServerDown(clientPort,
connectionTimeout)) {<a name="line.385"></a>
+<span class="sourceLineNo">386</span> throw new IOException("Waiting for
shutdown of standalone server");<a name="line.386"></a>
+<span class="sourceLineNo">387</span> }<a name="line.387"></a>
+<span class="sourceLineNo">388</span><a name="line.388"></a>
+<span class="sourceLineNo">389</span>
zooKeeperServers.get(backupZKServerIndex).getZKDatabase().close();<a
name="line.389"></a>
+<span class="sourceLineNo">390</span><a name="line.390"></a>
+<span class="sourceLineNo">391</span> // remove this backup zk server<a
name="line.391"></a>
+<span class="sourceLineNo">392</span>
standaloneServerFactoryList.remove(backupZKServerIndex);<a name="line.392"></a>
+<span class="sourceLineNo">393</span>
clientPortList.remove(backupZKServerIndex);<a name="line.393"></a>
+<span class="sourceLineNo">394</span>
zooKeeperServers.remove(backupZKServerIndex);<a name="line.394"></a>
+<span class="sourceLineNo">395</span> LOG.info("Kill one backup ZK servers
in the cluster " +<a name="line.395"></a>
+<span class="sourceLineNo">396</span> "on client port: " +
clientPort);<a name="line.396"></a>
+<span class="sourceLineNo">397</span> }<a name="line.397"></a>
+<span class="sourceLineNo">398</span><a name="line.398"></a>
+<span class="sourceLineNo">399</span> // XXX: From o.a.zk.t.ClientBase<a
name="line.399"></a>
+<span class="sourceLineNo">400</span> private static boolean
waitForServerDown(int port, long timeout) throws IOException {<a
name="line.400"></a>
+<span class="sourceLineNo">401</span> long start =
System.currentTimeMillis();<a name="line.401"></a>
+<span class="sourceLineNo">402</span> while (true) {<a name="line.402"></a>
+<span class="sourceLineNo">403</span> try {<a name="line.403"></a>
+<span class="sourceLineNo">404</span> Socket sock = new
Socket("localhost", port);<a name="line.404"></a>
+<span class="sourceLineNo">405</span> try {<a name="line.405"></a>
+<span class="sourceLineNo">406</span> OutputStream outstream =
sock.getOutputStream();<a name="line.406"></a>
+<span class="sourceLineNo">407</span>
outstream.write("stat".getBytes());<a name="line.407"></a>
+<span class="sourceLineNo">408</span> outstream.flush();<a
name="line.408"></a>
+<span class="sourceLineNo">409</span> } finally {<a name="line.409"></a>
+<span class="sourceLineNo">410</span> sock.close();<a
name="line.410"></a>
+<span class="sourceLineNo">411</span> }<a name="line.411"></a>
+<span class="sourceLineNo">412</span> } catch (IOException e) {<a
name="line.412"></a>
+<span class="sourceLineNo">413</span> return true;<a
name="line.413"></a>
+<span class="sourceLineNo">414</span> }<a name="line.414"></a>
+<span class="sourceLineNo">415</span><a name="line.415"></a>
+<span class="sourceLineNo">416</span> if (System.currentTimeMillis() >
start + timeout) {<a name="line.416"></a>
+<span class="sourceLineNo">417</span> break;<a name="line.417"></a>
+<span class="sourceLineNo">418</span> }<a name="line.418"></a>
+<span class="sourceLineNo">419</span> try {<a name="line.419"></a>
+<span class="sourceLineNo">420</span> Thread.sleep(250);<a
name="line.420"></a>
+<span class="sourceLineNo">421</span> } catch (InterruptedException e)
{<a name="line.421"></a>
+<span class="sourceLineNo">422</span> throw (InterruptedIOException)new
InterruptedIOException().initCause(e);<a name="line.422"></a>
+<span class="sourceLineNo">423</span> }<a name="line.423"></a>
+<span class="sourceLineNo">424</span> }<a name="line.424"></a>
+<span class="sourceLineNo">425</span> return false;<a name="line.425"></a>
+<span class="sourceLineNo">426</span> }<a name="line.426"></a>
+<span class="sourceLineNo">427</span><a name="line.427"></a>
+<span class="sourceLineNo">428</span> // XXX: From o.a.zk.t.ClientBase<a
name="line.428"></a>
+<span class="sourceLineNo">429</span> private static boolean
waitForServerUp(int port, long timeout) throws IOException {<a
name="line.429"></a>
+<span class="sourceLineNo">430</span> long start =
System.currentTimeMillis();<a name="line.430"></a>
+<span class="sourceLineNo">431</span> while (true) {<a name="line.431"></a>
+<span class="sourceLineNo">432</span> try {<a name="line.432"></a>
+<span class="sourceLineNo">433</span> Socket sock = new
Socket("localhost", port);<a name="line.433"></a>
+<span class="sourceLineNo">434</span> BufferedReader reader = null;<a
name="line.434"></a>
+<span class="sourceLineNo">435</span> try {<a name="line.435"></a>
+<span class="sourceLineNo">436</span> OutputStream outstream =
sock.getOutputStream();<a name="line.436"></a>
+<span class="sourceLineNo">437</span>
outstream.write("stat".getBytes());<a name="line.437"></a>
+<span class="sourceLineNo">438</span> outstream.flush();<a
name="line.438"></a>
+<span class="sourceLineNo">439</span><a name="line.439"></a>
+<span class="sourceLineNo">440</span> Reader isr = new
InputStreamReader(sock.getInputStream());<a name="line.440"></a>
+<span class="sourceLineNo">441</span> reader = new
BufferedReader(isr);<a name="line.441"></a>
+<span class="sourceLineNo">442</span> String line =
reader.readLine();<a name="line.442"></a>
+<span class="sourceLineNo">443</span> if (line != null &&
line.startsWith("Zookeeper version:")) {<a name="line.443"></a>
+<span class="sourceLineNo">444</span> return true;<a
name="line.444"></a>
+<span class="sourceLineNo">445</span> }<a name="line.445"></a>
+<span class="sourceLineNo">446</span> } finally {<a name="line.446"></a>
+<span class="sourceLineNo">447</span> sock.close();<a
name="line.447"></a>
+<span class="sourceLineNo">448</span> if (reader != null) {<a
name="line.448"></a>
+<span class="sourceLineNo">449</span> reader.close();<a
name="line.449"></a>
+<span class="sourceLineNo">450</span> }<a name="line.450"></a>
+<span class="sourceLineNo">451</span> }<a name="line.451"></a>
+<span class="sourceLineNo">452</span> } catch (IOException e) {<a
name="line.452"></a>
+<span class="sourceLineNo">453</span> // ignore as this is expected<a
name="line.453"></a>
+<span class="sourceLineNo">454</span> LOG.info("server localhost:" +
port + " not up " + e);<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> if (System.currentTimeMillis() >
start + timeout) {<a name="line.457"></a>
+<span class="sourceLineNo">458</span> break;<a name="line.458"></a>
+<span class="sourceLineNo">459</span> }<a name="line.459"></a>
+<span class="sourceLineNo">460</span> try {<a name="line.460"></a>
+<span class="sourceLineNo">461</span> Thread.sleep(250);<a
name="line.461"></a>
+<span class="sourceLineNo">462</span> } catch (InterruptedException e)
{<a name="line.462"></a>
+<span class="sourceLineNo">463</span> throw (InterruptedIOException)new
InterruptedIOException().initCause(e);<a name="line.463"></a>
+<span class="sourceLineNo">464</span> }<a name="line.464"></a>
+<span class="sourceLineNo">465</span> }<a name="line.465"></a>
+<span class="sourceLineNo">466</span> return false;<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> public int getClientPort() {<a
name="line.469"></a>
+<span class="sourceLineNo">470</span> return activeZKServerIndex < 0 ||
activeZKServerIndex >= clientPortList.size() ? -1<a name="line.470"></a>
+<span class="sourceLineNo">471</span> :
clientPortList.get(activeZKServerIndex);<a name="line.471"></a>
+<span class="sourceLineNo">472</span> }<a name="line.472"></a>
+<span class="sourceLineNo">473</span><a name="line.473"></a>
+<span class="sourceLineNo">474</span> List<ZooKeeperServer>
getZooKeeperServers() {<a name="line.474"></a>
+<span class="sourceLineNo">475</span> return zooKeeperServers;<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>
