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kv_list_keys will give you all the keys in the database.  Still TODO:
implement the "starting key" feature, so we can get a subset of keys.

Fix BerkeleyDB interface implementation to be multithread tolerant. Added simple ABT_mutex in kv-server to protect access to the 2 datastore related global variables in open_handler. Successfully tested with ParSplice.

also lets us use strange/specific CXXFLAGS only when needed

populaing a "kv_config.h" makes it easier to inspect what configure
thinks it found vs. looking through compiler command lines.

David Rich authored Nov 01, 2017 and Rob Latham committed Nov 22, 2017

Simplify API. Handle arbitrary key/value types. Code still has explicit handling of bulk transfers. Unless this is a performance win, just let HG handle it all implicitly?

David Rich authored Oct 24, 2017 and Rob Latham committed Nov 22, 2017

Did a "spack install leveldb" to pull stock leveldb into sds-repo. Decoupled sds-keyval from ParSplice build environment.