Bug 507159 - Cannot increase open file limit greater then 1024 * 1024 (1048576)
Summary: Cannot increase open file limit greater then 1024 * 1024 (1048576)
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.3
Hardware: All
OS: Linux
Target Milestone: rc
: ---
Assignee: Eric Sandeen
QA Contact: Red Hat Kernel QE team
URL: http://git.kernel.org/?p=linux/kernel...
Depends On:
Blocks: 533192
TreeView+ depends on / blocked
Reported: 2009-06-21 10:47 UTC by Jai Gupta
Modified: 2010-04-01 08:56 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-03-30 07:42:02 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0178 0 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.5 kernel security and bug fix update 2010-03-29 12:18:21 UTC

Description Jai Gupta 2009-06-21 10:47:30 UTC
Description of problem: Can not increase open file limit more then 1048576

How reproducible: 

Steps to Reproduce:
1. #ulimit -n 1048577
Actual results:

-bash: ulimit: open files: cannot modify limit: Operation not permitted

Expected results:

Additional info: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9cfe015aa424b3c003baba3841a60dd9b5ad319b

Comment 1 Ric Wheeler 2009-07-01 20:50:19 UTC
Is this an actual issue in production on a RHEL system for you?

Comment 2 Jai Gupta 2009-07-02 02:43:03 UTC
Yes, system is in production. We are using a server as domain manager, this server has currently ~50k domains, as more domains comes in Apache will start reporting errors. We are close to this limit of 1048576. Server hardware has enough power to handle 200K domains, this is the only bottleneck.

Motherboard: SuperMicro X7QCE Intel Xeon HexCore QuadProc Sata
Processor: 4 * Intel Xeon-Dunnington 7450-HexCore [2.4GHz]
Hard Drive: 6 * Seagate Cheetah ST3300655SS (RAID 10)
Drive Controller: LSI LOGIC \ 8308ELP \ SAS RAID

Comment 3 Eric Sandeen 2009-07-02 05:47:38 UTC
The upstream patch is pretty straightforward.

Comment 4 Ric Wheeler 2009-07-02 11:25:39 UTC
Giving this to Eric for 5.5.

Comment 5 RHEL Program Management 2009-11-13 22:40:22 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update

Comment 7 Don Zickus 2009-12-15 20:17:47 UTC
in kernel-2.6.18-181.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Please update the appropriate value in the Verified field
(cf_verified) to indicate this fix has been successfully
verified. Include a comment with verification details.

Comment 11 errata-xmlrpc 2010-03-30 07:42:02 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


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