Bug 84548
Summary: | NFS Client Transfer Rates Extremely Slow or non-functional | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | Larry Hauch <larry.hauch> |
Component: | kernel | Assignee: | Steve Dickson <steved> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | Brian Brock <bbrock> |
Severity: | high | Docs Contact: | |
Priority: | high | ||
Version: | 8.0 | CC: | dclark, dmay, graham, jadams, jepler, jlcoleman, lnewby, mitr, vipul.lal |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i686 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2004-08-11 11:31:15 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Larry Hauch
2003-02-18 18:01:58 UTC
Our CAD group is currently testing RH 8 and have run into a brick wall with this same problem. We are waiting on a fix from RH. Please copy us on the progress. Thanks, dclark Cadence has also been hit with this issue with major delays in our builds and testing being a result. Lew Newby lnewby Do we have any ETA on this issue? This is also starting to have an impact on EE2.1 and the latest kernel revs for RH7.3 Do the slower transfers have more rpc badcalls/retrans than the faster ones? nfsstat -c and nfsstat -s shows rpc badcalls/retrans. Also are the more rpc calls with the slower transfers? Again nfsstat can be used to see this... Checking the nfsstat on both the client and the server show 0 badcalls and only 2 retrans calls. This is critical to us moving forward with Redhat 8.x. Is this bug getting any attention? Can we expect to see a patch for Redhat 8.x or are there no plans to fix this in the current kernel? This performance loss is unacceptable. What do we need to do in icrease the priority of this problem? How come this bug is still considered NEW and has not been ASSIGNED for 4.5 months even though it is "high" priority and "high" severity? Please expedite this case! We see this as a high priority in moving to Redhat 8.0. We cannot live with the performance degradation as a result of this bug.. This problem is causing us in various applications to achieve much less performance than we currently have with our Sun machines. Yes, this problem is a solid barrier to 8.x support by Cadence (or anyone else, you would think) Why have we seen no activity or comment by Red Hat on this issue? Within Cadence IT we have found that the following modifications will improve performance greatly as well as reliability. Upgrade to at least kernel-2.4.18-27 if not 2.4.20-* (If you are using RedHat as an NFS server and wish to use TCP you will need to use the 2.4.20-* kernel and modify the config to include support for NFS over TCP.) set mount options to rsize=8096,wsize=8096,udp Until kernel-2.4.20 the TCP implementation of NFS has had severe problems. At this time I would surmise that RedHat has little if any interest in resolving issues for the consumer editions of RedHat. If you can replicate this problem in Enterprise edition 2.1 they may address it. Lew Newby Cadence I fumble fingered the numbers it should be 8192 for rsize and wsize Lew I see that this is a high priority high severity bug, but nothing seems to be happening, except more people getting hit by it. What does it take before an issue will get looked at? Looking at the list of comments is a like perusing the who's who of EDA and hardware companies. So visibility can't be an issue. Is more information required? Is it assigned to the wrong person? I believe this turned out to be a VM issue that has been fixed in later kernels. Please upgrade to FC1 since RH8 is not longer supported. |