Howdy LDM Users/Unidata,
I'm attempting to get straight in my head some relay latency between a LDM
server and client. Both are running the current release, 6.14.5. My simple
test is as follows, on the LDM upstream
pqinsert something every two seconds
on the LDM downstream, monitor receipt of these inserted products via `ldmadmin
watch` and also putting the LDM client connection into debug mode to see what
the RPC is doing. What I observe appears to LDM batching the RPC calls every
30 seconds instead of a more timely relay of inserted products to downstreams.
My typical naive and likely wrong understanding of LDM's code is that this is
controlled by:
src/registry/globals.c
/*
* Time to sleep in pq_suspend() and before retrying connects.
*/
unsigned int interval = 30;
So my questions:
1) Is this latency a function of my usage of `pqinsert` on the server side
instead of some proper LDM forked child process?
2) Are there side effects / significant performance concerns of setting the
`interval` value above to some lower threshold? I am thinking about setting it
to 1 or 5 seconds. Do I need to be careful to change this on all my LDM
servers and clients in my local topology?
3) Is there some other setting that controls this batching of RPC from the
server to the client?
thanks and Happy 4th!
daryl
