How to stop specific query attached with other query in same process using With method

Question

Would it be possible to stop one query out of two queries attached to single process...because i see it is returning one IDisposable inteface...if i call dispose() method...two queries are stopped/killed...
So how to stop specific query which is combined with other queries in a  same process at runtime i.e., attach or detach kind of thing?
Thanks in advance
Satish

Answer 1

Yes, the overloading of the term "Process" can be confusing. In SI, depending on your edition of StreamInsight, a process can run on one or more threads from a pool of threads and are scheduled together. Don't think of a process necessarily as a single
thread or multiple processes as a method of multi-threading.
As for a limit on the number of queries, there isn't a hard limit that I'm aware of. However, there will be a practical limit that will vary based on the complexity of the query, the event rate and your hardware (# of cores). If you are using Standard Edition,
this limit is much smaller as you only have a single scheduler thread. With Premium Edition, you have a scheduler thread for each core on the machine so you can get higher throughput and lower latency. But if you have, say, 4 cores on the machine (don't count
hyperthreaded cores, just real cores), 100 queries and a target throughput of 100K events/second, you'll likely have some problems. At 1K events/sec, you'd likely be fine though. With 32 cores and Premium Edition, you'd probably be OK with 100K events/sec.
So ... like I said, it depends.
DevBiker (aka J Sawyer)
Microsoft MVP - Sql Server (StreamInsight)
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