Details
Description
When NFS gateway starts and if the portmapper request is denied by rpcbind for any reason (in our case, /etc/hosts.allow did not have the localhost), NFS gateway fails with the following obscure exception:
2018-03-05 12:49:31,976 INFO org.apache.hadoop.oncrpc.SimpleUdpServer: Started listening to UDP requests at port 4242 for Rpc program: mountd at localhost:4242 with workerCount 1 2018-03-05 12:49:31,988 INFO org.apache.hadoop.oncrpc.SimpleTcpServer: Started listening to TCP requests at port 4242 for Rpc program: mountd at localhost:4242 with workerCount 1 2018-03-05 12:49:31,993 TRACE org.apache.hadoop.oncrpc.RpcCall: Xid:692394656, messageType:RPC_CALL, rpcVersion:2, program:100000, version:2, procedure:1, credential:(AuthFlavor:AUTH_NONE), verifier:(AuthFlavor:AUTH_NONE) 2018-03-05 12:49:31,998 FATAL org.apache.hadoop.mount.MountdBase: Failed to start the server. Cause: java.lang.UnsupportedOperationException: Unsupported verifier flavorAUTH_SYS at org.apache.hadoop.oncrpc.security.Verifier.readFlavorAndVerifier(Verifier.java:45) at org.apache.hadoop.oncrpc.RpcDeniedReply.read(RpcDeniedReply.java:50) at org.apache.hadoop.oncrpc.RpcReply.read(RpcReply.java:67) at org.apache.hadoop.oncrpc.SimpleUdpClient.run(SimpleUdpClient.java:71) at org.apache.hadoop.oncrpc.RpcProgram.register(RpcProgram.java:130) at org.apache.hadoop.oncrpc.RpcProgram.register(RpcProgram.java:101) at org.apache.hadoop.mount.MountdBase.start(MountdBase.java:83) at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.startServiceInternal(Nfs3.java:56) at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.startService(Nfs3.java:69) at org.apache.hadoop.hdfs.nfs.nfs3.PrivilegedNfsGatewayStarter.start(PrivilegedNfsGatewayStarter.java:60) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243) 2018-03-05 12:49:32,007 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
Reading the code comment for class Verifier, I think this bug existed since its inception
/** * Base class for verifier. Currently our authentication only supports 3 types * of auth flavors: {@link RpcAuthInfo.AuthFlavor#AUTH_NONE}, {@link RpcAuthInfo.AuthFlavor#AUTH_SYS}, * and {@link RpcAuthInfo.AuthFlavor#RPCSEC_GSS}. Thus for verifier we only need to handle * AUTH_NONE and RPCSEC_GSS */ public abstract class Verifier extends RpcAuthInfo {
The verifier should also handle AUTH_SYS too.
Attachments
Attachments
Issue Links
- relates to
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HDFS-5085 Refactor o.a.h.nfs to support different types of authentications
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- Closed
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