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| PeterPotkay |
 Posted: Tue Aug 16, 2005 12:00 pm Post subject: HTTP and WB-IMB |
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Poobah
Joined: 15 May 2001
Posts: 7722
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We have a few projects looking to do HTTP to MQ, or MQ to HTTP, via WB-IMB.
What are the considerations when you are about to allow all this http activity against your brokers? The stability of all my existing WB-IMB flows that use only MQ is the number one factor. Can HTTP requests overwhelm my brokers? Are there security new concerns?
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Peter Potkay
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| jefflowrey |
| Posted: Tue Aug 16, 2005 4:20 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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First off, put the HTTPInput flows into their own EG.
Then you can kill/stop them if the traffic gets too bad without halting anything else.
Second, I'd proxy the HTTP listener behind a webserver if you can. It will give you all sorts of useful things, like connection limits and the ability to use your normal website security measures (SiteMinder, TAM, etc...)
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| PeterPotkay |
| Posted: Tue Aug 16, 2005 5:22 pm Post subject: |
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Poobah
Joined: 15 May 2001
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| jefflowrey wrote: |
| Second, I'd proxy the HTTP listener behind a webserver if you can. It will give you all sorts of useful things, like connection limits and the ability to use your normal website security measures (SiteMinder, TAM, etc...) |
So if I have Broker1 on Server1 listening on port 7080, and Broker2 on Server2 listening on port 7081, I would not have the HTTP apps send directly to Server1/7080 or Server2/7081 or even ServerX/5555 (the last being an F5 router that would round robin between the 2 servers). Instead you are suggesting installing a WebServer, and having the HTTP apps aim at that? Of course now that Web Server needs to be made HA and DR capable. But I suppose it sounds worthwhile. I'll ask the WebServer guys here what they think. Jeff is this just your idea, or have you seen this proposed in IBM documentation?
I like the idea of a dedicated EG for HTTP flows.
Any other ideas? Will 100 messages per minute via MQ take more or less resources on the Broker server versus 100 HTTP requests per minute?
Is it overkill to have to create a new Broker dedicated to HTTP stuff? I am paranoid about a new rinky dink HTTP flow causing all sorts of problems on the brokers, effecting all the flows that have been there for years.
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Peter Potkay
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| jefflowrey |
| Posted: Wed Aug 17, 2005 3:14 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
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You probably don't need to establish a new webserver hardware infrastructure. Your WebServer guys probably already have usable capacity for this.
I haven't seen (but that doesn't mean it doesn't exist - I haven't really looked) any IBM docs one way or another that discuss proxying broker behind a webserver. But it's done all the time with WAS, and currently broker does not support HTTPS or any of the various authentication servers that people like to use. So I'd be really really surprised if anyone at IBM said this was a bad idea. Also, this may allow you to do some load balancing across the broker http ports - and could allow you to separate the user urls from what's configured in the HTTPInput nodes.
I don't know anything about capacity or reliability with the http parts of the broker, sorry. I'd say you will be fine without adding another broker up to a certain point. I don't know what that point is, but likely it's on the order of hundreds of simultaneous connections.
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| PeterPotkay |
| Posted: Mon Oct 24, 2005 8:37 am Post subject: |
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I was asked by someone exactly how does the Broker listen for incoming http requests. Can't find anything in the Help Center.
Is IIS involved?
Is there some sort of little bundled Web Server (i.e. Apache) running behind the scenes?
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Peter Potkay
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| jefflowrey |
| Posted: Mon Oct 24, 2005 8:58 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
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| PeterPotkay wrote: |
I was asked by someone exactly how does the Broker listen for incoming http requests. Can't find anything in the Help Center.
Is IIS involved?
Is there some sort of little bundled Web Server (i.e. Apache) running behind the scenes? |
There's a process, called "biphttplistener".
It's bundled. I don't think it's Apache or IHS. It's possibly a varient of the embedded webserver in WAS.
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| lillo |
| Posted: Mon Oct 24, 2005 11:44 pm Post subject: |
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Master
Joined: 11 Sep 2001
Posts: 224
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| PeterPotkay wrote: |
I was asked by someone exactly how does the Broker listen for incoming http requests. Can't find anything in the Help Center.
Is IIS involved?
Is there some sort of little bundled Web Server (i.e. Apache) running behind the scenes? |
Did you see the catalina directory/folder? I think, IBM uses tomcat embedded in MB, but not sure. Please, take a look to bipServletEngine.jar and listener.jar in the classes directory.
BRs
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Lillo
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