.Q.fs + pub/sub + flush?

Community Support
1

In my publisher, I’m reading from a file with .Q.fs[…] and then calling .u.pub[…] on each chunk. 

My subscribers don’t upd until either I’ve finished reading the file, or I flush the pending outgoing queues:

{ neg } each key .z.W

Is there a setting somewhere to tell it to auto-flush? 

2

use a positive file handle for synchronous IPC in your publisher

3

My publisher doesn’t deal with any file handles directly, it calls .u.pub[…] :

.u.pub[trades;chunk];`

I’m adapting the code from here: http://code.kx.com/wiki/Cookbook/publishsubscribe 

4

Hi Dave  

There isn’t an auto flush setting.  What you are doing is correct for what you are trying to do.  A possible slight modification would be to use .u.w (the subscription list) to only flush the handles which are actually subscribed i.e. 

.u.w[`trades][;0]

Thanks 

Jonny