Bug 18213 – TCP timer for TIME_WAIT state breaks

Bug 18213 - TCP timer for TIME_WAIT state breaks

Summary:	TCP timer for TIME_WAIT state breaks

Status:	CLOSED DUPLICATE of bug 16729

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	inetd (Show other bugs)
Sub Component:
Version:	6.2
Hardware:	i386 Linux

Priority	high Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Trond Eivind Glomsrxd
QA Contact:
Docs Contact:

URL:
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Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2000-10-03 09:27 EDT by Need Real Name
Modified:	2008-05-01 11:37 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2001-01-25 14:26:11 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Attachments	(Terms of Use)
log of sockets in TIME_WAIT state (2.90 KB, text/plain) 2000-10-03 09:32 EDT, Need Real Name	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Need Real Name 2000-10-03 09:27:44 EDT

I'm running vmlinux-2.2.14-6.1.1smp on a Dell PowerEdge 2450.  Our 
application connects to numerous POP3 servers on a periodic basis.  We 
monitor the number of sockets in TIME_WAIT state, and observe this number 
going up and down, as expected.  After a while (can be an hour or a day), 
we notice that sockets no longer close, and the number of sockets in 
TIME_WAIT state increase steadily until the kernel crashes (>5000 sockets).

Is this a bug in the TCP/IP stack?  If so, are there any remedies?

Comment 1 Need Real Name 2000-10-03 09:32:26 EDT

Created attachment 3660 [details]
log of sockets in TIME_WAIT state

Comment 2 Pekka Savola 2000-10-03 15:42:27 EDT

Are you synchronizing time on the system?  _Could_ be related to #14876 and friends.

Comment 3 Need Real Name 2000-10-03 15:52:21 EDT

I am using ntp 4.0.99i-1 to sync the clocks amongst various servers.  All other 
time services are off in inetd.conf.

Comment 4 Jeff Johnson 2000-10-06 17:32:14 EDT

Can you run lsof to verify the ownership of the connections?
The output of netstat -a would be helpful as well. Simply knowing the number
of sockets in TIME_WAIT is not enough to identify the cause of the problem.

I'd also double check that the time service is actually off using netstat -a,
as my blind guess is that this problem is #14876 et al as well.

Comment 5 Trond Eivind Glomsrxd 2001-01-19 16:20:36 EST

I'd like to repeat the request for information...

Comment 6 Trond Eivind Glomsrxd 2001-01-25 14:26:07 EST

Can you see if the one at http://people.redhat.com/teg/ helps?

Comment 7 Trond Eivind Glomsrxd 2001-01-30 11:49:24 EST


*** This bug has been marked as a duplicate of 16729 ***

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