Even if it's not interceptable, we should put in a ticket to hdfs to see about improving either the message itself or the catchability of it.
On Thu, Jan 22, 2015 at 11:09 AM, Josh Elser <[email protected]> wrote: > I know I've run into it before (hence why I brought it up) -- I also don't > remember 100% if there's another "common" reason for having non-zero > datanodes participating with none excluded. > > I'm also not sure how this manifests itself in code, but, assuming it's > something identifiable, we could try to catch this case and give a better > error message (and maybe clean up the loads of empty files we create while > we spin trying to "make" the file). > > Mike Drob wrote: > >> Has this error come up before? Is there room for us to intercept that >> stack trace and provide a "check that HDFS has space left" message? This >> might be especially relevant after we;ve removed the hadoop info box on >> the monitor. >> >> On Thu, Jan 22, 2015 at 8:30 AM, Josh Elser <[email protected] >> <mailto:[email protected]>> wrote: >> >> How much free space do you still have in HDFS? If hdfs doesn't have >> enough free space to make the file, I believe you'll see the car >> that you have outlined. The way we create the file will also end up >> requiring at least one GB with the default configuration. >> >> Also make sure to take into account any reserved percent of hdfs >> when considering the hdfs usage. >> >> On Jan 22, 2015 1:46 AM, "Lu.Qin" <[email protected] >> <mailto:[email protected]>> wrote: >> >> >> Hi,I have a Accumulo clusters and it run 10 days ,but it show me >> many errors now. >> >> 2015-01-22 13:04:21,161 [hdfs.DFSClient] WARN : Error while >> syncing >> org.apache.hadoop.ipc.RemoteException(java.io.IOException): File >> /accumulo/wal/+9997/226dce4f-4e14-4704-b811-532afe0b0fb3 could >> only be replicated to 0 nodes instead >> of minReplication (=1). There are 3 datanode(s) running and >> no node(s) are excluded in this operation. >> at >> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager. >> chooseTarget(BlockManager.java:1471) >> at >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem. >> getAdditionalBlock(FSNamesystem.java:2791) >> at >> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer. >> addBlock(NameNodeRpcServer.java:606) >> at >> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSi >> deTranslatorPB.addBlock(ClientNamenodeProtocolServerSi >> deTranslatorPB.java:455) >> at >> org.apache.hadoop.hdfs.protocol.proto. >> ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod( >> ClientNamenodeProtocolProtos.java) >> at >> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ >> ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585) >> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928) >> at >> org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013) >> at >> org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009) >> at java.security.AccessController.doPrivileged(Native >> Method) >> at javax.security.auth.Subject.doAs(Subject.java:415) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs( >> UserGroupInformation.java:1614) >> at >> org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007) >> >> at org.apache.hadoop.ipc.Client.call(Client.java:1411) >> 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.addBlock(Unknown Source) >> at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown >> Source) >> 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.$Proxy20.addBlock(Unknown Source) >> at >> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslat >> orPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:368) >> at >> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer. >> locateFollowingBlock(DFSOutputStream.java:1449) >> at >> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer. >> nextBlockOutputStream(DFSOutputStream.java:1270) >> at >> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer. >> run(DFSOutputStream.java:526) >> >> I use hadoop fs to put a file into hadoop ,and it works good,and >> the file has 2 replicates.Why accumulo can not work ? >> >> And I see there are so many file only 0B in >> /accumulo/wal/***/,why? >> >> Thanks. >> >> >>
