Today, running 1.0.7, we saw a node crash with an OutOfMemory. We have a single row with ~10million columns in it. (using it as an index) Accidentally, we attempted to list the CF in CLI that had the wide-row. This caused the CLI to hang and then eventually crashed Cassandra with an OoM.
I know this is a case of "If it hurts when you do that, don't do that", but we may want to better protect against it in the CLI and/or the DB. I know we limit row counts on lists in CLI. Do we also limit column counts? If not, I don't mind submitting a patch for this. let me know, brian -- Brian ONeill Lead Architect, Health Market Science (http://healthmarketscience.com) mobile:215.588.6024 blog: http://weblogs.java.net/blog/boneill42/ blog: http://brianoneill.blogspot.com/
