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Bug #1616

NFS client cannot reconnect to server after network connectivity loss

Added by Albert Lee almost 8 years ago. Updated over 5 years ago.

Status:
New
Priority:
Low
Assignee:
Category:
nfs - NFS server and client
Start date:
2011-10-08
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage

Description

I've reproduced this several times over the past two years.

I have an autofs-mounted NFSv4 share:
/net/nexentastor/export/ws on nexentastor:/export/ws remote/read/write/nosetuid/nodevices/xattr/dev=90c000c on Thu Sep 29 13:58:54 2011
A few days ago, I lost network connectivity for a few minutes (wireless network issues). The mountpoint is still held open by a process apparently. Stat'ing the directory hangs (but is interruptable).

Now snoop shows absolutely no network traffic, despite:
Oct 7 23:28:37 kirin nfs: [ID 733954 kern.info] NOTICE: [NFS4][Server: nexentastor][Mntpt: /net/nexentastor/export/ws]NFS server nexentastor not responding; still trying
Oct 8 11:31:54 kirin nfs: [ID 733954 kern.info] NOTICE: [NFS4][Server: nexentastor][Mntpt: /net/nexentastor/export/ws]NFS server nexentastor not responding; still trying

Trying to mount another share on the same server produces RPC errors:
[trisk@kirin]% pfexec mount nexentastor:/export/media /mnt ~/Downloads
NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
nfs mount: mount: /mnt: I/O error
In syslog:
Oct 8 11:49:53 kirin nfs: [ID 664466 kern.notice] NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
Oct 8 11:49:53 kirin genunix: [ID 664466 kern.notice] NFS compound failed for server nexentastor: error 26 (RPC: Couldn't make connection)
Oct 8 11:49:53 kirin nfs: [ID 434519 kern.warning] WARNING: NFS server initial call to nexentastor failed: I/O error

Mounting a share on a different NFSv4 server succeeds.


Related issues

Related to illumos gate - Bug #8955: bound+reserved ports can be leaked (when NFS client reboots too quickly)In Progress2018-01-08

Actions

History

#1

Updated by Marcel Telka over 5 years ago

  • Assignee set to Marcel Telka
#2

Updated by Marcel Telka over 1 year ago

  • Related to Bug #8955: bound+reserved ports can be leaked (when NFS client reboots too quickly) added

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