Change the test to wait for evidence that the active master has seen
that the backup master killed by the test has gone away. This is done
before proceeding to validate that the dead backup is correctly
omitted from the ClusterStatus report.
Also, minor fixup to several assertions, using `assertEquals` instead
of `assertTrue(...equals(...))` and correcting expected vs. actual
ordering of assertion arguments.
Signed-off-by: Michael Stack <stack@apache.org>
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>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
(cherry picked from commit 275a38e153)
(cherry picked from commit bb9121da77)
* HBASE-23304: RPCs needed for client meta information lookup
This patch implements the RPCs needed for the meta information
lookup during connection init. New tests added to cover the RPC
code paths. HBASE-23305 builds on this to implement the client
side logic.
Fixed a bunch of checkstyle nits around the places the patch
touches.
Signed-off-by: Andrew Purtell <apurtell@apache.org>
(cherry picked from commit 4f8fbba0c0)
(cherry picked from commit 488460e840)
* HBASE-23281: Track meta region changes on masters
This patch adds a simple cache that tracks the meta region replica
locations. It keeps an eye on the region movements so that the
cached locations are not stale.
This information is used for servicing client RPCs for connections
that use master based registry (HBASE-18095). The RPC end points
will be added in a separate patch.
Signed-off-by: Nick Dimiduk <ndimiduk@apache.org>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
(cherry picked from commit 8571d389cf)
(cherry picked from commit 89581d9d21)
Currently we just track whether an active master exists.
It helps to also track the address of the active master in
all the masters to help serve the client RPC requests to
know which master is active.
Signed-off-by: Nick Dimiduk <ndimiduk@apache.org>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
(cherry picked from commit efebb843af)
(cherry picked from commit 742949165f)
This patch implements a simple cache that all the masters
can lookup to serve cluster ID to clients. Active HMaster
is still responsible for creating it but all the masters
will read it from fs to serve clients.
RPCs exposing it will come in a separate patch as a part of
HBASE-18095.
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Signed-off-by: Wellington Chevreuil <wchevreuil@apache.org>
Signed-off-by: Guangxu Cheng <guangxucheng@gmail.com>
(cherry picked from commit c2e01f2398)
(cherry picked from commit 9ab652982b)
Note: branch-1 has design difference compared to other branches in the replication sub-system. HMaster does not coordinate replication actions in branch-1 and hence each RS is responsible for initing peers and updating ZK states. As part of this change we are updating zk state of peers after reading from configuration, so if there is a divergence in configuration across RS the result can be can be non-deterministic and the last RS RPC will win.
Signed-off-by: Bharath Vissapragada <bharathv@apache.org>
Duo Zhang
Reid Chan
WenFeiYi
Viraj Jasani
shahrs87
Qi Yu
Nick Dimiduk
ankitjain64
mnpoonia
Toshihiro Suzuki
Bharath Vissapragada
Andrew Purtell
stack
KevinSmile
Clara Xiong
Sandeep Pal
Javier Akira Luca de Tena
Mohammad Arshad
Abhey Rana
Zheng Wang