Operation canceled.
I have this error for no apparent reason   Operation canceled.
Certain select with a few joins is executed by SSIS via ADO NET driver to Vertica 1 node server. Result set up to 700000 rows was successfully retrieved dozens of times before that taking up to 90 seconds. The query was single query on the server at that time. Then suddenly I get "   Operation canceled.". Running this query manully produces no problems -- first 200 rows gotten in 20 seconds.
What might have happen? And where can I check for deeper error info?
Maybe some timeout should be increased?