hbase/hbase-protocol-shaded
Bharath Vissapragada 01cf60067c
HBASE-24765: Dynamic master discovery (#2130)
This patch adds the ability to discover newly added masters
dynamically on the master registry side. The trigger for the
re-fetch is either periodic (5 mins) or any registry RPC failure.
Master server information is cached in masters to avoid repeated
ZK lookups.

Updates the client side connection metrics to maintain a counter
per RPC type so that clients have visibility into counts grouped
by RPC method name.

I didn't add the method to ZK registry interface since there
is a design discussion going on in splittable meta doc. We can
add it later if needed.

Signed-off-by: Nick Dimiduk <ndimiduk@apache.org>
Signed-off-by: Viraj Jasani <vjasani@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
2020-08-25 15:09:03 -07:00
..
src/main HBASE-24765: Dynamic master discovery (#2130) 2020-08-25 15:09:03 -07:00
README.txt HBASE-24056 Improve the layout of our proto files in hbase-protocol-shaded module (#1377) 2020-04-06 10:22:08 +08:00
pom.xml HBASE-24119 Polish the protobuf usage in hbase-examples (#1438) 2020-04-06 22:14:55 +08:00

README.txt

This module has proto files used by core. These protos
overlap with protos that are used by coprocessor endpoints
(CPEP) in the module hbase-protocol. So core versions have
a different name, the generated classes are relocated
-- i.e. shaded -- to a new location; they are moved from
org.apache.hadoop.hbase.* to org.apache.hadoop.hbase.shaded.

proto files layout:
protobuf/client - client to server messages, client rpc service and protos, used in hbase-client exclusively;
protobuf/rest - hbase-rest messages;
protobuf/rpc - rpc and post-rpc tracing messages;
protobuf/server/coprocessor - coprocessor rpc services;
protobuf/server/coprocessor/example - coprocessors rpc services examples from hbase-examples;
protobuf/server/io - filesystem and hbase-server/io protos;
protobuf/server/maser - master rpc services and messages;
protobuf/server/region - region rpc services and messages (except client rpc service, which is in Client.proto);
protobuf/server/rsgroup - rsgroup protos;
protobuf/server/zookeeper - protos for zookeeper and ones used exclusively in hbase-zookeeper module;
protobuf/server - protos used across other server protos;
protobuf/test - protos used in tests;
protobuf/ - protos used across other protos, exclusive for hbase-mapreduce and hbase-backup, other protos.