hbase/hbase-rsgroup
Balazs Meszaros c48dc02b76 HBASE-18106 Redo ProcedureInfo and LockInfo
Main changes:
- ProcedureInfo and LockInfo were removed, we use JSON instead of them
- Procedure and LockedResource are their server side equivalent
- Procedure protobuf state_data became obsolate, it is only kept for
reading previously written WAL
- Procedure protobuf contains a state_message field, which stores the internal
state messages (Any type instead of bytes)
- Procedure.serializeStateData and deserializeStateData were changed slightly
- Procedures internal states are available on client side
- Procedures are displayed on web UI and in shell in the following jruby format:
  { ID => '1', PARENT_ID = '-1', PARAMETERS => [ ..extra state information.. ] }

Signed-off-by: Michael Stack <stack@apache.org>
2017-09-08 11:56:28 -07:00
..
src HBASE-18106 Redo ProcedureInfo and LockInfo 2017-09-08 11:56:28 -07:00
README.txt HBASE-17056 Remove checked in PB generated files 2017-08-02 09:42:38 -07:00
pom.xml HBASE-18674 upgrading to commons-lang3 2017-09-05 09:46:49 -07:00

README.txt

ON PROTOBUFS
This maven module has protobuf definition files ('.protos') used by hbase
Coprocessor Endpoints that ship with hbase core including tests. Coprocessor
Endpoints are meant to be standalone, independent code not reliant on hbase
internals. They define their Service using protobuf. The protobuf version
they use can be distinct from that used by HBase internally since HBase started
shading its protobuf references. Endpoints have no access to the shaded protobuf
hbase uses. They do have access to the content of hbase-protocol -- the
.protos found in here -- but avoid using as much of this as you can as it is
liable to change.

Generation of java files from protobuf .proto files included here is done as
part of the build.