Monday Feb 16, 2009

Thin on OpenSolaris

Since the start of the year we've been testing with the Apache Olio Rails application on OpenSolaris. Early on we found that when using Thin as our Rails runtime, every now and then a Thin instance would abort and core dump after an assertion failure in EventMachine. This really only happened under high loads and was hard to recreate. The problem is detailed here: https://issues.apache.org/jira/browse/OLIO-38

We talked to the EventMachine folks on the eventmachine-talk alias and after a couple of days they were able to come up with a fix that we then tested at length. The fix is now available in EventMachine 0.12.4 . The support that they gave us was really fantastic and helped us resolve a problem that really threatened to hold up our project. Thanks particularly to Aman Gupta.

So if you are using or planning on using Thin and EventMachine on OpenSolaris, EventMachine 0.12.4 is the way to go.

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