Thank you for taking the time to report this bug and helping to make
Ubuntu better.
By "make sure that below patch has been used on above environment" do
you mean that you are running a patched version of haproxy, or are you
proposing that this patch fixes the bug that you are reporting?
Is there a specific patch available upstream the fixes this bug, and if
so, is it released upstream and if so which version? Otherwise, can
someone report this bug upstream if it still applies please?
Once answered, please change the bug status back to New.
** Changed in: haproxy (Ubuntu)
Status: New => Incomplete
--
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https://bugs.launchpad.net/bugs/1308314
Title:
incorrect balancing in weight value 256
Status in haproxy package in Ubuntu:
Incomplete
Bug description:
Haproxy can work correctly with wight 256, the node with weight 256
either takes all the traffic or takes none traffic:
1-1 weight: web1:256, web2:1, web3:1 (incorrect case.)
(1024 accesses * 3 times to vip)
result 1
web1: 1024
web2: 0
web3: 0
result 2
web1: 1024
web2: 0
web3: 0
result 3
web1 counted: 1024
web2 counted: 0
web3 counted: 0
1-2 weight: web1:255, web2:1, web3:1 (correct case.)
(1024 accesses * 3 times to vip)
result 1
web1 counted: 1017
web2 counted: 4
web3 counted: 3
result 2
web1 counted: 1016
web2 counted: 4
web3 counted: 4
result 3
web1 counted: 1016
web2 counted: 4
web3 counted: 4
2-1 web1:256, web2:128, web3:128 (incorrect case.)
(256 accesses * 3 times to vip)
result 1
web1 counted: 1
web2 counted: 128
web3 counted: 127
result 2
web1 counted: 0
web2 counted: 128
web3 counted: 128
result 3
web1 counted: 0
web2 counted: 128
web3 counted: 128
2-2 web1:255, web2:128, web3:128(correct case.)
(256 accesses * 3 times to vip)
result 1
web1 counted: 128
web2 counted: 64
web3 counted: 64
result 2
web1 counted: 128
web2 counted: 64
web3 counted: 64
result 3
web1 counted: 128
web2 counted: 64
web3 counted: 64
From the haproxy aspect, they have fixed a bug of "Roundrobin can not
work well when a server's weight is 256" , make sure that below patch
has been used on above environment.
Mail of "Roundrobin can not work well when a server's weight is 256"
https://www.mail-archive.com/haproxy@formilux.org/msg10613.html
Patch:
https://dev.openwrt.org/browser/packages/net/haproxy/patches/0005-BUG-MEDIUM-server-set-the-macro-for-server-s-max-wei.patch
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/haproxy/+bug/1308314/+subscriptions
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