mount failure, server: 10.13.148.82, export: /var/nfs, nfs version: 3, returned state: 13

[javapenguin]

• I installed a NFS server on Ubuntu Bionic Server.
• Export the /var/nfs which I created.
• Created a mount from my Ubuntu Bionic desktop.
• The mount on my desktop works (10.13.148.82:/var/nfs 392287232 210137088 162153472 57% /home/gary/var/nfs) so I made the assumption the Java client should also work.

When I try to connect using EMC NFS Java Client to the same server using the same export I mounted on my desktop with the following code

Nfs3 nfs3 = new Nfs3(hostname, export, new CredentialUnix(), 3);

I get the following error:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
mount failure, server: 10.13.148.82, export: /var/nfs, nfs version: 3, returned state: 13
com.emc.ecs.nfsclient.mount.MountException: mount failure, server: 10.13.148.82, export: /var/nfs, nfs version: 3, returned state: 13
    at com.emc.ecs.nfsclient.nfs.nfs3.Nfs3.lookupRootHandle(Nfs3.java:342)
    at com.emc.ecs.nfsclient.nfs.nfs3.Nfs3.prepareRootFhAndNfsPort(Nfs3.java:311)
    at com.emc.ecs.nfsclient.nfs.nfs3.Nfs3.<init>(Nfs3.java:258)
    at com.emc.ecs.nfsclient.nfs.nfs3.Nfs3.<init>(Nfs3.java:201)
    at com.emc.ecs.nfsclient.nfs.nfs3.Nfs3.<init>(Nfs3.java:228)
    at com.emc.ecs.nfsclient.nfs.io.FileReadingTest.testReading(FileReadingTest.java:104)
    at com.emc.ecs.nfsclient.nfs.io.FileReadingTest.main(FileReadingTest.java:53)

The error message is not very helpfull and I don't know where to even begin looking for the problem.

[oskarTeodor]

I think state 13 === permission denied.

[wuxincn]

I got the similar problem in Centos. It is fixed by add "insecure" to info of related exported directory in file /etc/exports. More details can be found in https://stackoverflow.com/questions/58186427/emc-nfs-java-client-mountexception.