[OFBiz] Users - Transactions in Ofbiz

[Si Chen]

You might consider setting 'transaction-timout' (yes, it's misspelled) 
for your larger feeds.

Why it defaults to "true": because most services are business processes 
that require transactions?  Changing use-transaction now to default to 
"false" instead of "true" would not be practical, given how many 
services there are?

Si

Ravish Kamath wrote:

>Hi All,
>
>We were trying to implement a service in ofbiz which would try & fetch RSS
>feeds from the net & persist them into entities. However we ran into
>intermittent transaction related errors. The errors were always shown on the
>line where the delegator.create() call was happening. The question was how
>was this transaction set to roll-back & why. Later after a few test cases,
>we found that this was an issue whenever the number of feeds to be retrieved
>were larger.
>
>So finally after some hacking around we observed that a service by default
>has use-transaction attribute as true & it was this transaction that was
>timing out, getting marked for roll-back and all child transactions would
>defenitely run into problems.
>
>So now my question is:
>
>why services in ofbiz have use-transaction attribute as default true,
>would'nt false be better? This would seem to run into a problem if the
>service had time-intensive operations to be run.
>
>Also we seem to run into another problem which we have currently no idea on.
>
>java.lang.IllegalArgumentException: Could not get next sequence ID for
>sequence name: ServerHitBin
>org.ofbiz.entity.GenericDelegator.getNextSeqId(GenericDelegator.java:2085)
>org.ofbiz.entity.GenericDelegator.getNextSeqId(GenericDelegator.java:2072)
>org.ofbiz.content.stats.ServerHitBin.advanceBin(ServerHitBin.java:560)
>org.ofbiz.content.stats.ServerHitBin.addHit(ServerHitBin.java:514)
>org.ofbiz.content.stats.ServerHitBin.countHit(ServerHitBin.java:214)
>org.ofbiz.content.stats.ServerHitBin.countHit(ServerHitBin.java:93)
>
>
>This problem seems to happen with ServerHitBin or VisitId sequences, there
>is no other go but to restart the server, could anyone please give me some
>pointers as to why this is happening ?
>
>We are on Ofbiz version 3.2.0.
>
>cheers
>ravish
>
>
>
> 
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