Public bug reported:
This is very similar to bug 585657:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/585657
Difference is my server doesn't freeze, it closes the socket. System integrity
is still responsive.
I'm running NFS version 4 on Ubuntu 14.04.4 LTS and during large rsync
file copies (200MB+) they die midway. This is killing my zimbra email
backups :(. I haven't had the system freeze during this scenario but
what ends up happening is the copy fails on the client side and then my
NFS server shuts the socket down due to excessive failures. Smaller file
copies work perfectly fine.
Here are the client/server logs.
#Client
Jul 9 01:00:39 mailserv01 kernel: [591473.216168] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:00:39 mailserv01 kernel: [591473.216174] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:00:39 mailserv01 kernel: [591473.218841] nfs: server NFS-Backup01 OK
Jul 9 01:00:39 mailserv01 kernel: [591473.219159] nfs: server NFS-Backup01 OK
Jul 9 01:01:14 mailserv01 kernel: [591508.710863] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:08:16 mailserv01 kernel: [591929.870358] nfs: server NFS-Backup01 OK
Jul 9 01:08:44 mailserv01 kernel: [591958.514953] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:10:23 mailserv01 kernel: [592056.840273] nfs: server NFS-Backup01 OK
Jul 9 01:11:19 mailserv01 kernel: [592113.298900] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:13:07 mailserv01 kernel: [592221.275966] nfs: server NFS-Backup01 OK
Jul 9 01:15:22 mailserv01 kernel: [592355.580401] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:15:22 mailserv01 kernel: [592355.615649] nfs: server NFS-Backup01 OK
Jul 9 01:16:03 mailserv01 kernel: [592397.459848] nfs: server NFS-Backup01 not
responding, still trying
Jul 9 01:16:08 mailserv01 kernel: [592401.663381] nfs: server NFS-Backup01 OK
Jul 9 01:17:06 mailserv01 kernel: [592460.381059] nfs: server NFS-Backup01 not
responding, still trying
#NFS Server
Jul 9 01:01:51 NFS-Backup01 kernel: [130980.762798] RPC request reserved 156
but used 176
Jul 9 01:08:28 NFS-Backup01 kernel: [131377.839675] RPC request reserved 156
but used 176
Jul 9 01:08:46 NFS-Backup01 kernel: [131395.943517] rpc-srv/tcp: nfsd: got
error -32 when sending 136 bytes - shutting down socket
Jul 9 01:10:17 NFS-Backup01 kernel: [131486.962508] RPC request reserved 156
but used 176
Jul 9 01:10:22 NFS-Backup01 kernel: [131492.447565] RPC request reserved 156
but used 176
Jul 9 01:10:27 NFS-Backup01 kernel: [131496.837561] rpc-srv/tcp: nfsd: got
error -32 when sending 136 bytes - shutting down socket
Jul 9 01:10:54 NFS-Backup01 kernel: [131524.423501] RPC request reserved 156
but used 176
Jul 9 01:15:31 NFS-Backup01 kernel: [131801.603553] rpc-srv/tcp: nfsd: got
error -32 when sending 136 bytes - shutting down socket
Jul 9 01:16:55 NFS-Backup01 kernel: [131885.232973] rpc-srv/tcp: nfsd: got
error -32 when sending 136 bytes - shutting down socket
#Client fstab
NFS-Backup01:/mnt/backup /mnt/backup nfs
rsize=8192,wsize=8192,nfsvers=4,hard,timeo=14,intr
#NFS Server fstab
/mnt/backup /mnt/backup none bind 0 0
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1602827
Title:
NFS server "shutting down socket" during large file copies Ubunutu
14.04.4 LTS
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