Red Hat GLOBAL FILE SYSTEM 4.7 Guide de l'utilisateur télécharger pdf (Page 106)

Troubleshooting7–10

In the following example, the output from a fully dual-connected configuration is shown; in this example

delta6 is the client node:

[root@delta6 ~]# lctl --net tcp peer_list

12345-10.128.0.72@tcp [1]10.128.0.61->10.128.0.72:988 #3

12345-10.128.0.72@tcp [0]10.128.8.61->10.128.8.72:988 #3

12345-10.128.0.73@tcp [1]10.128.0.61->10.128.0.73:988 #3

12345-10.128.0.73@tcp [0]10.128.8.61->10.128.8.73:988 #3

12345-10.128.0.74@tcp [1]10.128.0.61->10.128.0.74:988 #3

12345-10.128.0.74@tcp [0]10.128.8.61->10.128.8.74:988 #3

Only HP SFS servers that are actively serving a device will be shown.

To list each of the connections, enter the following command:

[root@delta6 root]# lctl --net tcp conn_list

[12345-10.128.0.72@tcp O[1]10.128.8.61->10.128.8.72:988 262142/262142 nonagle

12345-10.128.0.72@tcp I[1]10.128.8.61->10.128.8.72:988 262142/262142 nonagle

12345-10.128.0.72@tcp C[1]10.128.8.61->10.128.8.72:988 262142/262142 nonagle

12345-10.128.0.72@tcp O[0]10.128.0.61->10.128.0.72:988 262142/262142 nonagle

12345-10.128.0.72@tcp I[0]10.128.0.61->10.128.0.72:988 262142/262142 nonagle

12345-10.128.0.72@tcp C[0]10.128.0.61->10.128.0.72:988 262142/262142 nonagle

12345-10.128.0.73@tcp O[1]10.128.8.61->10.128.8.73:988 262142/262142 nonagle

12345-10.128.0.73@tcp I[1]10.128.8.61->10.128.8.73:988 262142/262142 nonagle

12345-10.128.0.73@tcp C[1]10.128.8.61->10.128.8.73:988 262142/262142 nonagle

12345-10.128.0.73@tcp O[0]10.128.0.61->10.128.0.73:988 262142/262142 nonagle

12345-10.128.0.73@tcp I[0]10.128.0.61->10.128.0.73:988 262142/262142 nonagle

12345-10.128.0.73@tcp C[0]10.128.0.61->10.128.0.73:988 262142/262142 nonagle

12345-10.128.0.74@tcp O[1]10.128.8.61->10.128.8.74:988 262142/262142 nonagle

12345-10.128.0.74@tcp I[1]10.128.8.61->10.128.8.74:988 262142/262142 nonagle

12345-10.128.0.74@tcp C[1]10.128.8.61->10.128.8.74:988 262142/262142 nonagle

12345-10.128.0.74@tcp O[0]10.128.0.61->10.128.0.74:988 262142/262142 nonagle

12345-10.128.0.74@tcp I[0]10.128.0.61->10.128.0.74:988 262142/262142 nonagle

12345-10.128.0.74@tcp C[0]10.128.0.61->10.128.0.74:988 262142/262142 nonagle

To list the interfaces that may be used for interaction with Lustre file systems, enter the following command:

[root@delta6 root]# lctl --net tcp interface_list

10.128.0.61: (10.128.0.61/255.255.255.0) npeer 0 nroute 3

10.128.8.61: (10.128.8.61/255.255.255.0) npeer 0 nroute 3

The only interfaces that will be listed are the interfaces that are explicitly named in the options lnet

settings in the /etc/modprobe.conf.lustre or /etc/modules.conf.lustre file.

7.4 Miscellaneous issues

This section contains information on miscellaneous issues that may arise when client nodes are using Lustre

file systems:

The section is organized as follows:

• socknal_cb.c EOF warning (Section 7.4.1)

7. 4 . 1 s o c k n a l _ c b. c E O F w a r n i n g

A message similar to the following may occasionally be displayed on one or more client nodes:

Jun 29 14:38:21 delta65 kernel: Lustre:

2473:(socknal_cb.c:1508:ksocknal_process_receive()) [00000101fd7e6000]

EOF from 0xa800008 ip 10.128.0.8:988

This problem may be caused by incorrect settings in the /etc/hosts file on a client node, or by the fact

that two (or more) client nodes are sharing an IP address.

If this occurs, examine the /etc/hosts file on the client nodes to verify that they are correctly set up. The

hostname must not be mapped to 127.0.0.1, and no two client nodes can have the same IP address.

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