ConfigPusherImpl.java - Unnecessary Synchronization

The opendaylight/netconf/config-persister-impl/src/main/java/org/opendaylight/controller/netconf/persist/impl/ConfigPusherImpl.java performs method level synchronization on a couple of methods which could possibly end up waiting for a long period of time.

In general you do NOT want to perform synchronization of blocks of code which could possibly take a long time to run as it will just back everything up.

See Gerrit 9844 for some inline comments.

This bug should be used to asses if synchronization is really necessary on the methods provided, and if it it then it should be optimized.