Some NFS file transfers fail and hang automounting
From Linux NFS
(Difference between revisions)
Line 8: | Line 8: | ||
<pre>kernel: Callback slot table overflowed</pre> | <pre>kernel: Callback slot table overflowed</pre> | ||
- | + | * The problem doesn't occur if foo has a size less than 10Mb | |
- | + | * The final size of bar appears to be random | |
- | + | ||
- | This incident occurs with: | + | * This incident occurs with: <pre>sunrpc.tcp_slot_table_entries = 16</pre> |
- | sunrpc.tcp_slot_table_entries = 16 | + | * This incident does NOT occur with: <pre>sunrpc.tcp_slot_table_entries = 32</pre> |
- | + | ||
- | + | ||
- | sunrpc.tcp_slot_table_entries = 32 | + |
Revision as of 14:50, 22 October 2010
Symptoms
- Given a file "foo" of 50Mb on a remote machine "remote".
- This command will never finish
<localmachine $> cp /remote_mount_point/foo bar
- bar will have a size less than foo.
- automounting of the local machine is hung.
- This command will never finish
- The following message will show up in /var/log/messages
kernel: Callback slot table overflowed
- The problem doesn't occur if foo has a size less than 10Mb
- The final size of bar appears to be random
- This incident occurs with:
sunrpc.tcp_slot_table_entries = 16
- This incident does NOT occur with:
sunrpc.tcp_slot_table_entries = 32