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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » is global cache worth storing a single value?

is global cache worth storing a single value?

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bprasana

Posted: Mon Aug 05, 2013 6:21 am Post subject: is global cache worth storing a single value?

Disciple

Joined: 18 Apr 2005
Posts: 179

Requirement:
Simple Business Date validation.
Check if Date from incoming batch file header is greater than or equal to 'some reference value'. if Yes update 'reference value' and continue processing else throw error.

'some reference value' - we dont have database, but can access file system or Q or global cache. Shared Variable is too less a life span.(Cant risk a flow restart!)

We are using WMB 8.0.0.2. What would be the best solution to store this single value.

rest of the flow is mostly coded in esql and developers are comfortable with that. Not sure if this can be deciding factor !!

lancelotlinc

Posted: Mon Aug 05, 2013 6:25 am Post subject:

Jedi Knight

Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA

Why not? Whats wrong with using the GlobalCache ? I've not found any drawbacks.
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kash3338

Posted: Mon Aug 05, 2013 6:11 pm Post subject: Re: is global cache worth storing a single value?

Shaman

Joined: 08 Feb 2009
Posts: 709
Location: Chennai, India

bprasana wrote:

(Cant risk a flow restart!)

How often do you see a flow restart and why would that ever happen?

smdavies99

Posted: Mon Aug 05, 2013 9:25 pm Post subject: Re: is global cache worth storing a single value?

Jedi Council

Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.

kash3338 wrote:

bprasana wrote:

(Cant risk a flow restart!)

How often do you see a flow restart and why would that ever happen?

How about in an HA environment and you fail the broker (+QM) over to another node?

How about another flow in the EG causes the EG to abend and restart?

Don't just dismiss that situation blindly. It can and does happen and you have to plan for it.
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