saintstack commented on a change in pull request #657: Hbase 22932 Add rs group
management methods in Admin and AsyncAdmin
URL: https://github.com/apache/hbase/pull/657#discussion_r328712503
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File path: hbase-client/src/main/java/org/apache/hadoop/hbase/client/Admin.java
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@@ -2254,4 +2256,70 @@ boolean snapshotCleanupSwitch(final boolean on, final
boolean synchronous)
*/
boolean isSnapshotCleanupEnabled() throws IOException;
+ /**
+ * Gets group info for the given group name
+ * @param groupName the group name
+ * @return group info
+ * @throws IOException if a remote or network exception occurs
+ */
+ RSGroupInfo getRSGroupInfo(String groupName) throws IOException;
+
+ /**
+ * Move given set of servers to the specified target RegionServer group
+ * @param servers set of servers to move
+ * @param targetGroup the group to move servers to
+ * @throws IOException if a remote or network exception occurs
+ */
+ void moveServers(Set<Address> servers, String targetGroup) throws
IOException;
+
+ /**
+ * Creates a new RegionServer group with the given name
+ * @param groupName the name of the group
+ * @throws IOException if a remote or network exception occurs
+ */
+ void addRSGroup(String groupName) throws IOException;
+
+ /**
+ * Removes RegionServer group associated with the given name
+ * @param groupName the group name
+ * @throws IOException if a remote or network exception occurs
+ */
+ void removeRSGroup(String groupName) throws IOException;
+
+ /**
+ * Balance regions in the given RegionServer group
+ * @param groupName the group name
+ * @return boolean Whether balance ran or not
+ * @throws IOException if a remote or network exception occurs
+ */
+ boolean balanceRSGroup(String groupName) throws IOException;
+
+ /**
+ * Lists current set of RegionServer groups
+ * @throws IOException if a remote or network exception occurs
+ */
+ List<RSGroupInfo> listRSGroups() throws IOException;
+
+ /**
+ * Retrieve the RSGroupInfo a server is affiliated to
+ * @param hostPort HostPort to get RSGroupInfo for
+ * @throws IOException if a remote or network exception occurs
+ */
+ RSGroupInfo getRSGroupOfServer(Address hostPort) throws IOException;
+
+ /**
+ * Remove decommissioned servers from group
+ * 1. Sometimes we may find the server aborted due to some hardware failure
and we must offline
+ * the server for repairing. Or we need to move some servers to join other
clusters.
+ * So we need to remove these servers from the group.
+ * 2. Dead/recovering/live servers will be disallowed.
+ * @param servers set of servers to remove
+ * @throws IOException if a remote or network exception occurs
+ */
+ void removeServers(Set<Address> servers) throws IOException;
Review comment:
Could be removeRSGroup ... taking a list of Servers so it is understood we
are removing servers from rsgroup.
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