2005hithlj commented on code in PR #5203:
URL: https://github.com/apache/hbase/pull/5203#discussion_r1186684616
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src/main/asciidoc/_chapters/ops_mgt.adoc:
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@@ -2610,6 +2636,32 @@ The new layout will be:
1.1.1.2,60020.1312 (Contains a position)
----
+==== The replication queue claiming(based on hbase table)
+
+Given a master cluster with 3 region servers replicating to a single slave
with id `2`, the following info represents what the storage layout of queue in
the hbase:replication at some point in time.
+Row key is <PeerId>-<ServerName>[/<SourceServerName>], and value is WAL &&
Offset.
+
+----
+
+ <PeerId>-<ServerName>[/<SourceServerName>] WAL &&
Offset
+ 2-1.1.1.1,60020,123456780 1.1.1.1,60020.1234
(Contains a position)
+ 2-1.1.1.2,60020,123456790 1.1.1.2,60020.1214
(Contains a position)
+ 2-1.1.1.3,60020,123456630 1.1.1.3,60020.1280
(Contains a position)
+----
+
+Assume that 1.1.1.2 failed.
+The survivors will claim queue of that, and, arbitrarily, 1.1.1.3 wins.
+It will claim all the queue of 1.1.1.2, including removing the row of a
replication queue, and inserting a new row(where we change the server name to
the region server which claims the queue).
+Finally ,the layout will look like the following:
Review Comment:
> The position of the ',' is incorrect?
OK sir , I have revised.
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