We experienced major issues with stability. Looking back, this may be because we chose to go with the PostgreSQL version, as opposed to the more tried and true MySQL flavor.

Many stability issues were experienced in the database, reaching error conditions and simply shutting itself down. We actually had calls as frequent as three times a week with Infobright personnel helping them debug their product as they tried to provide hot-fix patches for us.

I don't remember something specific, but the server failed to respond on overload and should be restarted.

I cannot recall too many issues with stability. I would say that it is pretty stable.

No.

When running a complex subquery, the system hangs without giving the user any response.

We did not encounter any stability issues.

We never experienced stability issues.