Re: HDFS Rest Service not available
Ahh, this did the trick, I had to get the name node out of same mode however before it fully worked. Thanks! On Tue, Jun 2, 2015 at 12:09 AM, Akhil Das wrote: > It says your namenode is down (connection refused on 8020), you can restart > your HDFS by going into hadoop directory and typing sbin/stop-dfs.sh and > then sbin/start-dfs.sh > > Thanks > Best Regards > > On Tue, Jun 2, 2015 at 5:03 AM, Su She wrote: >> >> Hello All, >> >> A bit scared I did something stupid...I killed a few PIDs that were >> listening to ports 2183 (kafka), 4042 (spark app), some of the PIDs >> didn't even seem to be stopped as they still are running when i do >> >> lsof -i:[port number] >> >> I'm not sure if the problem started after or before I did these kill >> commands, but I now can't connect to HDFS or start spark. I can't seem >> to access Hue. I am afraid I accidentally killed an important process >> related to HDFS. But, I am not sure what it would be as I couldn't >> even kill the PIDs. >> >> Is it a coincidence that HDFS failed randomly? Likely that I killed an >> important PID? How can I maybe restart HDFS? >> >> Thanks a lot! >> >> Error on Hue: >> >> Cannot access: /user/ec2-user. The HDFS REST service is not available. >> Note: You are a Hue admin but not a HDFS superuser (which is "hdfs"). >> >> HTTPConnectionPool(host='ec2-ip-address.us-west-1.compute.amazonaws.com', >> port=50070): Max retries exceeded with url: >> /webhdfs/v1/user/ec2-user?op=GETFILESTATUS&user.name=hue&doas=ec2-user >> (Caused by : [Errno 111] Connection refused) >> >> Error when I try to open spark-shell or a spark app: >> java.net.ConnectException: Call From >> ip-10-0-2-216.us-west-1.compute.internal/10.0.2.216 to >> ip-10-0-2-216.us-west-1.compute.internal:8020 failed on connection >> exception: java.net.ConnectException: Connection refused; For more >> details see: http://wiki.apache.org/hadoop/ConnectionRefused >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >> Method) >> at >> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) >> at >> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) >> at java.lang.reflect.Constructor.newInstance(Constructor.java:526) >> at >> org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783) >> at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730) >> at org.apache.hadoop.ipc.Client.call(Client.java:1415) >> at org.apache.hadoop.ipc.Client.call(Client.java:1364) >> at >> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206) >> at com.sun.proxy.$Proxy20.getFileInfo(Unknown Source) >> at >> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:744) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:606) >> at >> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187) >> at >> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) >> at com.sun.proxy.$Proxy21.getFileInfo(Unknown Source) >> at >> org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1921) >> at >> org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1089) >> at >> org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1085) >> at >> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) >> at >> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1085) >> at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1400) >> at >> org.apache.spark.util.FileLogger.createLogDir(FileLogger.scala:123) >> at org.apache.spark.util.FileLogger.start(FileLogger.scala:115) >> at >> org.apache.spark.scheduler.EventLoggingListener.start(EventLoggingListener.scala:74) >> at org.apache.spark.SparkContext.(SparkContext.scala:353) >> at >> org.apache.spark.repl.SparkILoop.createSparkContext(SparkILoop.scala:986) >> at $iwC$$iwC.(:9) >> at $iwC.(:18) >> at (:20) >> at .(:24) >> at .() >> at .(:7) >> at .() >> at $print() >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.la
Re: HDFS Rest Service not available
It says your namenode is down (connection refused on 8020), you can restart your HDFS by going into hadoop directory and typing sbin/stop-dfs.sh and then sbin/start-dfs.sh Thanks Best Regards On Tue, Jun 2, 2015 at 5:03 AM, Su She wrote: > Hello All, > > A bit scared I did something stupid...I killed a few PIDs that were > listening to ports 2183 (kafka), 4042 (spark app), some of the PIDs > didn't even seem to be stopped as they still are running when i do > > lsof -i:[port number] > > I'm not sure if the problem started after or before I did these kill > commands, but I now can't connect to HDFS or start spark. I can't seem > to access Hue. I am afraid I accidentally killed an important process > related to HDFS. But, I am not sure what it would be as I couldn't > even kill the PIDs. > > Is it a coincidence that HDFS failed randomly? Likely that I killed an > important PID? How can I maybe restart HDFS? > > Thanks a lot! > > Error on Hue: > > Cannot access: /user/ec2-user. The HDFS REST service is not available. > Note: You are a Hue admin but not a HDFS superuser (which is "hdfs"). > > HTTPConnectionPool(host='ec2-ip-address.us-west-1.compute.amazonaws.com', > port=50070): Max retries exceeded with url: > /webhdfs/v1/user/ec2-user?op=GETFILESTATUS&user.name=hue&doas=ec2-user > (Caused by : [Errno 111] Connection refused) > > Error when I try to open spark-shell or a spark app: > java.net.ConnectException: Call From > ip-10-0-2-216.us-west-1.compute.internal/10.0.2.216 to > ip-10-0-2-216.us-west-1.compute.internal:8020 failed on connection > exception: java.net.ConnectException: Connection refused; For more > details see: http://wiki.apache.org/hadoop/ConnectionRefused > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:526) > at > org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783) > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730) > at org.apache.hadoop.ipc.Client.call(Client.java:1415) > at org.apache.hadoop.ipc.Client.call(Client.java:1364) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206) > at com.sun.proxy.$Proxy20.getFileInfo(Unknown Source) > at > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:744) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) > at com.sun.proxy.$Proxy21.getFileInfo(Unknown Source) > at > org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1921) > at > org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1089) > at > org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1085) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1085) > at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1400) > at > org.apache.spark.util.FileLogger.createLogDir(FileLogger.scala:123) > at org.apache.spark.util.FileLogger.start(FileLogger.scala:115) > at > org.apache.spark.scheduler.EventLoggingListener.start(EventLoggingListener.scala:74) > at org.apache.spark.SparkContext.(SparkContext.scala:353) > at > org.apache.spark.repl.SparkILoop.createSparkContext(SparkILoop.scala:986) > at $iwC$$iwC.(:9) > at $iwC.(:18) > at (:20) > at .(:24) > at .() > at .(:7) > at .() > at $print() > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at > org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852) > at > org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125) > at > org.apache.spark.repl.SparkIMain.loadA
HDFS Rest Service not available
Hello All, A bit scared I did something stupid...I killed a few PIDs that were listening to ports 2183 (kafka), 4042 (spark app), some of the PIDs didn't even seem to be stopped as they still are running when i do lsof -i:[port number] I'm not sure if the problem started after or before I did these kill commands, but I now can't connect to HDFS or start spark. I can't seem to access Hue. I am afraid I accidentally killed an important process related to HDFS. But, I am not sure what it would be as I couldn't even kill the PIDs. Is it a coincidence that HDFS failed randomly? Likely that I killed an important PID? How can I maybe restart HDFS? Thanks a lot! Error on Hue: Cannot access: /user/ec2-user. The HDFS REST service is not available. Note: You are a Hue admin but not a HDFS superuser (which is "hdfs"). HTTPConnectionPool(host='ec2-ip-address.us-west-1.compute.amazonaws.com', port=50070): Max retries exceeded with url: /webhdfs/v1/user/ec2-user?op=GETFILESTATUS&user.name=hue&doas=ec2-user (Caused by : [Errno 111] Connection refused) Error when I try to open spark-shell or a spark app: java.net.ConnectException: Call From ip-10-0-2-216.us-west-1.compute.internal/10.0.2.216 to ip-10-0-2-216.us-west-1.compute.internal:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730) at org.apache.hadoop.ipc.Client.call(Client.java:1415) at org.apache.hadoop.ipc.Client.call(Client.java:1364) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206) at com.sun.proxy.$Proxy20.getFileInfo(Unknown Source) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:744) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) at com.sun.proxy.$Proxy21.getFileInfo(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1921) at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1089) at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1085) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1085) at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1400) at org.apache.spark.util.FileLogger.createLogDir(FileLogger.scala:123) at org.apache.spark.util.FileLogger.start(FileLogger.scala:115) at org.apache.spark.scheduler.EventLoggingListener.start(EventLoggingListener.scala:74) at org.apache.spark.SparkContext.(SparkContext.scala:353) at org.apache.spark.repl.SparkILoop.createSparkContext(SparkILoop.scala:986) at $iwC$$iwC.(:9) at $iwC.(:18) at (:20) at .(:24) at .() at .(:7) at .() at $print() at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852) at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125) at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:674) at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:705) at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:669) at org.apache.spark.repl.SparkILoop.reallyInterpret$1(SparkILoop.scala:828) at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:873) at org.apache.spark.repl.SparkILoop.command(SparkIL
