Add `meta.args` for command line argument access. Add command line argument support for shard number. Add shard count to config file. Add `meta.sharding` exposing shard properties. Add shard number to logging methods. Add shard number to data appid.
Add `meta.args` for command line argument access. Add command line argument support for shard number. Add shard count to config file. Add `meta.sharding` exposing shard properties. Add shard number to logging methods. Add shard number to data appid.