# plugins-general


02/10/2023, 10:04 PM
I’ve got two very similar runs happening in parallel processes on the same machine (using dagster). The only difference between the two runs are the environment variables, otherwise I’m running the exact same tap, just targeting two different instances of mysql. I’m running tap-mysql with target-snowflake. When I run these two pipelines separately they run fine, but when they run in parallel (starting at the exact same time) I get this error:
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Cannot start plugin tap-mysql--foo: Catalog discovery failed: invalid catalog: Extra data: line 6544 column 11 (char 157140)