# NFS to HEAVY TRAFFIC

**URL:** <https://community.unix.com/t/nfs-to-heavy-traffic/299043>\
**Category:** Red Hat\
**Created:** [November 11, 2011, 3:57am UTC](https://community.unix.com/t/nfs-to-heavy-traffic/299043 "2011-11-11T03:57:38Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![zvtral](https://community.unix.com/letter_avatar/zvtral/32/5_5575768a8748004e209b776fc1b2916d.png) [@zvtral](https://community.unix.com/u/zvtral)\
**Post date:** [November 11, 2011, 3:57am UTC](https://community.unix.com/t/nfs-to-heavy-traffic/299043/1 "2011-11-11T03:57:38Z")

</div>

dear all,  
i need case with my nfs ....

```nohighlight
Nov 11 15:49:13 BANK02 kernel: nfs: server 10.16.108.5 not responding, still trying
Nov 11 15:49:16 BANK02 last message repeated 2 times
Nov 11 15:49:20 BANK02 kernel: nfs: server 10.16.108.5 OK
Nov 11 15:49:20 BANK02 last message repeated 2 times
Nov 11 15:49:34 BANK02 kernel: nfs: server 10.16.108.5 not responding, still trying
Nov 11 15:49:47 BANK02 last message repeated 4 times
Nov 11 15:49:47 BANK02 kernel: nfs: server 10.16.108.5 OK
Nov 11 15:49:47 BANK02 last message repeated 4 times
Nov 11 15:49:55 BANK02 kernel: nfs: server 10.16.108.5 not responding, still trying
Nov 11 15:49:58 BANK02 kernel: nfs: server 10.16.108.5 OK

```

why my nfs like that any have same with my case i think my nfs is to heavy traffic tcp and how make to solve it:(

---

<div class="post-metadata">

**Author:** ![ygemici](https://community.unix.com/letter_avatar/ygemici/32/5_5575768a8748004e209b776fc1b2916d.png) [@ygemici](https://community.unix.com/u/ygemici)\
**Post date:** [November 11, 2011, 9:20am UTC](https://community.unix.com/t/nfs-to-heavy-traffic/299043/2 "2011-11-11T09:20:45Z")

</div>

i assume , your nfsserver is OK ,at the now try some issues on the nfs client

- check traffic between nfsserver and your client

```plaintext
# tracepath nfsserver

```

or try nfswatch

```plaintext
# yum install nfswatch && nfswatch -dst nfsserver -src nfsclient

```

- try to boot with newer kernel and check your messages

```plaintext
# rpm -ivh kernel-newer.rpm && tail -f /var/log/messages

```

- check the nfsmount parameters(tmeout and rsize/wsize) and if you still problem then change your settings according to [Optimizing NFS Performance](http://tldp.org/HOWTO/NFS-HOWTO/performance.html)

```plaintext
# nfsstat -m

```

regards  
ygemici

---

<div class="post-metadata">

**Author:** ![mark54g](https://community.unix.com/letter_avatar/mark54g/32/5_5575768a8748004e209b776fc1b2916d.png) [@mark54g](https://community.unix.com/u/mark54g)\
**Post date:** [November 11, 2011, 7:16pm UTC](https://community.unix.com/t/nfs-to-heavy-traffic/299043/3 "2011-11-11T19:16:52Z")

</div>

which version of NFS is running? How many daemons is it running (if v3?) how much memory does this machine have, and what are your mount parameters? Have you considered cachefilesd on the client? Are you sure you are not using UDP?