I did that more than once, I just retry it from the beginning. I zapped the directories and recreated them with hdfs namenode -format and restarted HDFS and I am still getting the very same error.
I have posted previously the report. Is there anything in this report that indicates I am not having enough free space somewhere? That's the only thing I can see may cause this problem after everything I read on the subject. I am new to Hadoop and I just want to setup a standalone node for starting to experiment a while with it before going ahead with a complete cluster. I repost the report for convenience: Configured Capacity: 2939899904 (2.74 GB) Present Capacity: 534421504 (509.66 MB) DFS Remaining: 534417408 (509.66 MB) DFS Used: 4096 (4 KB) DFS Used%: 0.00% Under replicated blocks: 0 Blocks with corrupt replicas: 0 Missing blocks: 0 ------------------------------------------------- Datanodes available: 1 (1 total, 0 dead) Live datanodes: Name: 127.0.0.1:50010 (feynman.cids.ca) Hostname: feynman.cids.ca Decommission Status : Normal Configured Capacity: 2939899904 (2.74 GB) DFS Used: 4096 (4 KB) Non DFS Used: 2405478400 (2.24 GB) DFS Remaining: 534417408 (509.66 MB) DFS Used%: 0.00% DFS Remaining%: 18.18% Last contact: Tue Dec 03 13:37:02 EST 2013 ----------------- Daniel Savard 2013/12/3 Adam Kawa <kawa.a...@gmail.com> > Daniel, > > It looks that you can only communicate with NameNode to do "metadata-only" > operations (e.g. listing, creating a dir, empty file)... > > Did you format the NameNode correctly? > A quite similar issue is described here: > http://www.manning-sandbox.com/thread.jspa?messageID=126741. The last > reply says: "The most common is that you have reformatted the namenode > leaving it in an inconsistent state. The most common solution is to stop > dfs, remove the contents of the dfs directories on all the machines, run > “hadoop namenode -format” on the controller, then restart dfs. That > consistently fixes the problem for me. This may be serious overkill but it > works." > > > 2013/12/3 Daniel Savard <daniel.sav...@gmail.com> > >> Thanks Arun, >> >> I already read and did everything recommended at the referred URL. There >> isn't any error message in the logfiles. The only error message appears >> when I try to put a non-zero file on the HDFS as posted above. Beside that, >> absolutely nothing in the logs is telling me something is wrong with the >> configuration so far. >> >> Is there some sort of diagnostic tool that can query/ping each server to >> make sure it responds properly to requests? When trying to put my file, in >> the datanode log I see nothing, the message appears in the namenode log. Is >> this the expected behavior or should I see at least some kind of request >> message in the datanode logfile? >> >> >> ----------------- >> Daniel Savard >> >> >> 2013/12/2 Arun C Murthy <a...@hortonworks.com> >> >>> Daniel, >>> >>> Apologies if you had a bad experience. If you can point them out to us, >>> we'd be more than happy to fix it - alternately, we'd *love* it if you >>> could help us improve docs too. >>> >>> Now, for the problem at hand: >>> http://wiki.apache.org/hadoop/CouldOnlyBeReplicatedTo is one place to >>> look. Basically NN cannot find any datanodes. Anything in your NN logs to >>> indicate trouble? >>> >>> Also, pls feel free to open liras with issues you find and we'll help. >>> >>> thanks, >>> Arun >>> >>> On Dec 2, 2013, at 8:44 AM, Daniel Savard <daniel.sav...@gmail.com> >>> wrote: >>> >>> André, >>> >>> good for you that greedy instructions on the reference page were enough >>> to setup your cluster. However, read them again and see how many >>> assumptions are made into them about what you are supposed to already know >>> and should come without saying more about it. >>> >>> I did try the single node setup, it is worst than the cluster setup >>> regarding the instructions. You are supposed to already have a near working >>> system as far as I understand the instructions. It is assumed the HDFS is >>> already setup and working properly. Try to find the instructions to setup >>> HDFS for version 2.2.0 and you will end up with a lot of inappropriate >>> instructions about previous version (some properties were renamed). >>> >>> It may appear hard at people to say this is toxic, but it is. The first >>> place a newcomer will go is setup a single node. This will be his starting >>> point and he will be left with a bunch of a priori and no clue. >>> >>> To go back to my very problem at this point: >>> >>> 13/12/02 11:34:07 WARN hdfs.DFSClient: DataStreamer Exception >>> org.apache.hadoop.ipc.RemoteException(java.io.IOException): File >>> /test._COPYING_ could only be replicated to 0 nodes instead of >>> minReplication (=1). There are 1 datanode(s) running and no node(s) are >>> excluded in this operation. >>> at >>> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1384) >>> at >>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2477) >>> at >>> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:555) >>> at >>> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:387) >>> at >>> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:59582) >>> at >>> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585) >>> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928) >>> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2048) >>> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2044) >>> at java.security.AccessController.doPrivileged(Native Method) >>> at javax.security.auth.Subject.doAs(Subject.java:415) >>> at >>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491) >>> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2042) >>> >>> at org.apache.hadoop.ipc.Client.call(Client.java:1347) >>> at org.apache.hadoop.ipc.Client.call(Client.java:1300) >>> at >>> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206) >>> at com.sun.proxy.$Proxy9.addBlock(Unknown Source) >>> 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:186) >>> at >>> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) >>> at com.sun.proxy.$Proxy9.addBlock(Unknown Source) >>> at >>> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:330) >>> at >>> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1226) >>> at >>> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1078) >>> at >>> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:514) >>> >>> I can copy an empty file, but as soon as its content is non-zero I am >>> getting this message. Searching on the message is of no help so far. >>> >>> And I skimmed through the cluster instructions and found nothing there >>> that could help in any way neither. >>> >>> >>> ----------------- >>> Daniel Savard >>> >>> >>> 2013/12/2 Andre Kelpe <ake...@concurrentinc.com> >>> >>>> Hi Daniel, >>>> >>>> first of all, before posting to a mailing list, take a deep breath and >>>> let your frustrations out. Then write the email. Using words like >>>> "crappy", "toxicware", "nightmare" are not going to help you getting >>>> useful responses. >>>> >>>> While I agree that the docs can be confusing, we should try to stay >>>> constructive. You haven't mentioned which documentation you are >>>> using. I found the cluster tutorial sufficient to get me started: >>>> >>>> http://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/ClusterSetup.html >>>> >>>> If you are looking for an easy way to spin up a small cluster with >>>> hadoop 2.2, try the hadoop2 branch of this vagrant setup: >>>> >>>> https://github.com/fs111/vagrant-hadoop-cluster/tree/hadoop2 >>>> >>>> - André >>>> >>>> On Mon, Dec 2, 2013 at 5:34 AM, Daniel Savard <daniel.sav...@gmail.com> >>>> wrote: >>>> > I am trying to configure hadoop 2.2.0 from source code and I found the >>>> > instructions really crappy and incomplete. It is like they were >>>> written to >>>> > avoid someone can do the job himself and must contract someone else >>>> to do it >>>> > or buy a packaged version. >>>> > >>>> > It is about three days I am struggling with this stuff with partial >>>> success. >>>> > The documentation is less than clear and most of the stuff out there >>>> apply >>>> > to earlier version and they haven't been updated for version 2.2.0. >>>> > >>>> > I was able to setup HDFS, however I am still unable to use it. I am >>>> doing a >>>> > single node installation and the instruction page doesn't explain >>>> anything >>>> > beside telling you to do this and that without documenting what each >>>> thing >>>> > is doing and what choices are available and what guidelines you should >>>> > follow. There is even environment variables you are told to set, but >>>> nothing >>>> > is said about what they mean and to which value they should be set. >>>> It seems >>>> > it assumes prior knowledge of everything about hadoop. >>>> > >>>> > Anyone knows a site with proper documentation about hadoop or it's >>>> hopeless >>>> > and this whole thing is just a piece of toxicware? >>>> > >>>> > I am already looking for alternate solutions to hadoop which for sure >>>> will >>>> > be a nightmare to manage and install each time a new version, release >>>> will >>>> > become available. >>>> > >>>> > TIA >>>> > ----------------- >>>> > Daniel Savard >>>> >>>> >>>> >>>> -- >>>> André Kelpe >>>> an...@concurrentinc.com >>>> http://concurrentinc.com >>>> >>> >>> >>> -- >>> Arun C. Murthy >>> Hortonworks Inc. >>> http://hortonworks.com/ >>> >>> >>> >>> CONFIDENTIALITY NOTICE >>> NOTICE: This message is intended for the use of the individual or entity >>> to which it is addressed and may contain information that is confidential, >>> privileged and exempt from disclosure under applicable law. If the reader >>> of this message is not the intended recipient, you are hereby notified that >>> any printing, copying, dissemination, distribution, disclosure or >>> forwarding of this communication is strictly prohibited. If you have >>> received this communication in error, please contact the sender immediately >>> and delete it from your system. Thank You. >> >> >> >
