Re: [hylafax-users] Difference between batchjobs and multiple docin one sendfax comman ds

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Gunjan Gupta wrote:

> SO if I set batchjob option , and send individual documents for same
> destination with individual sendfax command, then also it will
> automatically batch all the jobs which are of same destination till
> upper limit. And then send out in one call.
>
> PLS current me if I am wrong in understanding.

No.

Batching occurs with jobs that are already in the queue.

So, let's say that you're at a company that is constantly sending faxes 
to the same destination.  You and your coworkers are all sending 
frequently to this same destination.  Well, the first job to that 
destination will likely get sent alone.  But because MaxConcurrentCalls 
defaults to 1 - all other jobs coming in to that destination will get 
blocked while that first call is still in progress.  Let's say that 
while that call is going two more jobs enter the queue for that 
destination.  Those jobs will block until the call-in-progress 
finishes.  So let's say that first call gets a "busy" signal.  Well, 
then all three jobs will get rescheduled for a minute or two later.  And 
at that time they will all go out together in a batch.

Similarly, if the first job had completed properly in that first call 
then when that call finished the other two jobs would get batched and 
get sent out together immediately.

The MaxBatchJobs configuration option just sets a limit on the number of 
jobs that can be batched in the same call.  The purpose of this config 
option is usually for disabling batching (by setting it to 1) but you 
can also use it to prevent a single destination from, perhaps, hogging a 
modem for a long period of time by limiting the number of jobs that can 
be batched.

Lee.

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