Here are some onfo. I greped for the port numbers instead of LISTEN. Please note that I am using Hadoop 1.2.1
$ netstat -an | grep 54310 $ netstat -an | grep 54311 tcp 0 0 ::ffff:127.0.0.1:54311 :::* LISTEN tcp 0 0 ::ffff:127.0.0.1:57479 ::ffff:127.0.0.1:54311 ESTABLISHED tcp 0 0 ::ffff:127.0.0.1:54311 ::ffff:127.0.0.1:57479 ESTABLISHED $ hadoop dfsadmin -report 14/03/27 17:35:07 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) 14/03/27 17:35:08 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) $ hadoop fsck / 14/03/27 17:36:10 ERROR security.UserGroupInformation: PriviledgedActionException as:hadoop cause:java.net.ConnectException: Connection refused Exception in thread "main" java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:198) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at sun.net.NetworkClient.doConnect(NetworkClient.java:180) at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) at sun.net.www.http.HttpClient.<init>(HttpClient.java:211) at sun.net.www.http.HttpClient.New(HttpClient.java:308) at sun.net.www.http.HttpClient.New(HttpClient.java:326) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1300) at org.apache.hadoop.hdfs.tools.DFSck$1.run(DFSck.java:142) at org.apache.hadoop.hdfs.tools.DFSck$1.run(DFSck.java:109) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190) at org.apache.hadoop.hdfs.tools.DFSck.run(DFSck.java:109) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at org.apache.hadoop.hdfs.tools.DFSck.main(DFSck.java:183) Regards, Mahmood On Thursday, March 27, 2014 5:11 PM, John Lilley <[email protected]> wrote: Does “netstat -an | grep LISTEN” show these ports being listened on? Can you stat hdfs from the command line e.g.: hdfs dfsadmin -report hdfs fsck / hdfs dfs -ls / Also, check out /var/log/hadoop or /var/log/hdfs for more details. john From:Mahmood Naderan [mailto:[email protected]] Sent: Thursday, March 27, 2014 5:04 AM To: [email protected] Subject: ipc.Client: Retrying connect to server Hi, I don't know what mistake I did that now I get this error INFO ipc.Client:Retrying connect toserver:localhost/127.0.0.1:54310.Already tried2 time(s);retry policy isRetryUpToMaximumCountWithFixedSleep(maxRetries=10,sleepTime=1SECONDS) INFO ipc.Client:Retrying connect toserver:localhost/127.0.0.1:54310.Already tried3 time(s);retry policy isRetryUpToMaximumCountWithFixedSleep(maxRetries=10,sleepTime=1SECONDS) I saw the wiki page for that message and all other resources state that the namenode has not been started yet. However I tried "stop-all.sh && start-all.sh" multiple times. In fact I see java processes regarding Hadoop. More info: core-site.xml <property> <name>fs.default.name</name> <value>hdfs://localhost:54310</value> </property> mapred-site.xml <property> <name>mapred.job.tracker</name> <value>localhost:54311</value> </property> Any more idea on that? Regards, Mahmood
