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[Bug 663564] Re: Don't report persistentconns as activeconns

 

** Description changed:

  Binary package hint: ipvsadm
  
  Description:    Ubuntu 10.04.1 LTS
  Release:        10.04
  
  ipvsadm:
-   Installed: 1:1.25.clean-1
-   Candidate: 1:1.25.clean-1
-   Version table:
-  *** 1:1.25.clean-1 0
-         500 http://apt-mirror1.us.archive.org/ubuntu/ lucid/main Packages
-         100 /var/lib/dpkg/status
+   Installed: 1:1.25.clean-1
+   Candidate: 1:1.25.clean-1
+   Version table:
+  *** 1:1.25.clean-1 0
+         500 http://apt-mirror1.us.archive.org/ubuntu/ lucid/main Packages
+         100 /var/lib/dpkg/status
  
  there is "what appears to be a typo in the netlink client code whereby
  the activeconns is read as activeconns and then overwritten by
  persistentconns. The result is that the active connection count reported
  by ipvsadm -L is wrong if the code is compiled to use the netlink
  interface." (description taken from
  http://archive.linuxvirtualserver.org/html/lvs-
  devel/2010-02/msg00006.html)
  
  the attached patch is taken from
  https://bugzilla.redhat.com/show_bug.cgi?id=573921 (the same patch as
  from the lvs-devel link but with unmangled whitespace)
+ 
+ == SRU REPORT ==
+ 
+ === IMPACT ===
+ 
+ This patch is extremely straight forward and only affects the reporting
+ code, so risk of crash/security problems are low. If somebody has built
+ a workaround for the lack of active connection reporting, or if they
+ have been assuming that the number was lower/0, the update reporting
+ accurate numbers may cause some confusion, but that should be easy to
+ correlate with the system updates.
+ 
+ === DEV FIX ===
+ 
+ The code was patched and uploaded to natty in version 1:1.25.clean-
+ 1ubuntu1
+ 
+ === PATCH ===
+ 
+ See merge proposal.
+ 
+ === TEST CASE: ===
+ 
+ From redhat bug report:
+ 
+ Steps to Reproduce:
+ 1. Create an IPVS virtual service, something along these lines:
+    ipvsadm -A -t this.host.ip:80
+    ipvsadm -a -t this.host.ip:80 -r other.host.ip:80 -m
+    (and set up the HTTP server on other.host.ip).
+ 2. from different host run "telnet this.host.ip 80"
+ 3. run /sbin/ipvsadm -L
+ 
+ Actual results:
+ The "ActiveConn" column is zero even though there is an open connection.
+ 
+ Expected results:
+ The "ActiveConn" column should be greater than zero.
+ 
+ === REGRESSION POTENTIAL ===
+ 
+ Very low. See IMPACT.

** Changed in: ipvsadm (Ubuntu)
     Assignee: Clint Byrum (clint-fewbar) => (unassigned)

** Changed in: ipvsadm (Ubuntu Lucid)
     Assignee: (unassigned) => Clint Byrum (clint-fewbar)

** Changed in: ipvsadm (Ubuntu Lucid)
       Status: Triaged => In Progress

-- 
Don't report persistentconns as activeconns
https://bugs.launchpad.net/bugs/663564
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