Metacat

use LRU eviction policy and a small (1000) map size limit to avoid running out of memory because of a large number of system metadata objects

Set the default maximum number of database connections back to 200. After discussion, we've decided it will be better to increase the PostgreSQL limit to 300 and keep Metacat's pool size pretty big.

include pidFilter handling - only matches the complete pid. Issues a warning in the Metacat logs when pidFilter cannot be applied but allows the call to getLogs() to return as though there was no pidFilter given.
https://redmine.dataone.org/issues/2798

use at least one thread on single-processor machines.
https://redmine.dataone.org/issues/2800

Change the database.maximumConnections property to 100. PostgreSQL's docs says it can handle "a few hundred", and would need to be increased from the default 100 max_connections. For DataONE optimization, we increase max_connections, however there are more processes making connections other than metacat, so I'll reduce metacat's default share.

script for re-applying missing FK constraints on KNB production DB.
http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5608

include TRACE level debugging for specific classes we want to have performance metrics for.

Add a few logging statemnts for round trip replication metrics.

add trace statements for measuring time to complete SM generation.

new D1 jars:
prevent NPEs from the object format cache when formatId.value is null. This came up during PISCO testing