Warn about metadata and heap size ?

[Tom Zeller]

Just wondering if in v3 we want the metadata resolver to warn and possibly not reload if a metadata file size is larger than some value. For example, -Xmx768m does not seem quite enough for the ~20m UK federation metadata. I guess I would rather see a log message at warn that says “raise your heap size” than “java.lang.OutOfMemoryError”, unless of course the latter is recoverable.