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Posted to commits@hbase.apache.org by sy...@apache.org on 2017/03/16 17:12:34 UTC

[06/14] hbase git commit: HBASE-17779 disable_table_replication returns misleading message and does not turn off replication (Janos Gub)

HBASE-17779 disable_table_replication returns misleading message and does not turn off replication (Janos Gub)


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/777fea55
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/777fea55
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/777fea55

Branch: refs/heads/hbase-12439
Commit: 777fea552eab3262e95053b2fc757fc49dfad96d
Parents: 44b2558
Author: tedyu <yu...@gmail.com>
Authored: Tue Mar 14 12:13:34 2017 -0700
Committer: tedyu <yu...@gmail.com>
Committed: Tue Mar 14 12:13:34 2017 -0700

----------------------------------------------------------------------
 .../apache/hadoop/hbase/client/HBaseAdmin.java  | 35 +++++++++++++++-----
 .../TestReplicationAdminWithClusters.java       | 17 ++++++++++
 2 files changed, 44 insertions(+), 8 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/777fea55/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
index 1f143b5..6918184 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
@@ -4228,14 +4228,16 @@ public class HBaseAdmin implements Admin {
   /**
    * Set the table's replication switch if the table's replication switch is already not set.
    * @param tableName name of the table
-   * @param isRepEnabled is replication switch enable or disable
+   * @param enableRep is replication switch enable or disable
    * @throws IOException if a remote or network exception occurs
    */
-  private void setTableRep(final TableName tableName, boolean isRepEnabled) throws IOException {
+  private void setTableRep(final TableName tableName, boolean enableRep) throws IOException {
     HTableDescriptor htd = getTableDescriptor(tableName);
-    if (isTableRepEnabled(htd) ^ isRepEnabled) {
+    ReplicationState currentReplicationState = getTableReplicationState(htd);
+    if (enableRep && currentReplicationState != ReplicationState.ENABLED
+        || !enableRep && currentReplicationState != ReplicationState.DISABLED) {
       for (HColumnDescriptor hcd : htd.getFamilies()) {
-        hcd.setScope(isRepEnabled ? HConstants.REPLICATION_SCOPE_GLOBAL
+        hcd.setScope(enableRep ? HConstants.REPLICATION_SCOPE_GLOBAL
             : HConstants.REPLICATION_SCOPE_LOCAL);
       }
       modifyTable(tableName, htd);
@@ -4243,17 +4245,34 @@ public class HBaseAdmin implements Admin {
   }
 
   /**
+   * This enum indicates the current state of the replication for a given table.
+   */
+  private enum ReplicationState {
+    ENABLED, // all column families enabled
+    MIXED, // some column families enabled, some disabled
+    DISABLED // all column families disabled
+  }
+
+  /**
    * @param htd table descriptor details for the table to check
-   * @return true if table's replication switch is enabled
+   * @return ReplicationState the current state of the table.
    */
-  private boolean isTableRepEnabled(HTableDescriptor htd) {
+  private ReplicationState getTableReplicationState(HTableDescriptor htd) {
+    boolean hasEnabled = false;
+    boolean hasDisabled = false;
+
     for (HColumnDescriptor hcd : htd.getFamilies()) {
       if (hcd.getScope() != HConstants.REPLICATION_SCOPE_GLOBAL
           && hcd.getScope() != HConstants.REPLICATION_SCOPE_SERIAL) {
-        return false;
+        hasDisabled = true;
+      } else {
+        hasEnabled = true;
       }
     }
-    return true;
+
+    if (hasEnabled && hasDisabled) return ReplicationState.MIXED;
+    if (hasEnabled) return ReplicationState.ENABLED;
+    return ReplicationState.DISABLED;
   }
 
   /**

http://git-wip-us.apache.org/repos/asf/hbase/blob/777fea55/hbase-server/src/test/java/org/apache/hadoop/hbase/client/replication/TestReplicationAdminWithClusters.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/replication/TestReplicationAdminWithClusters.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/replication/TestReplicationAdminWithClusters.java
index b44ecbf..312a90a 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/replication/TestReplicationAdminWithClusters.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/replication/TestReplicationAdminWithClusters.java
@@ -76,6 +76,23 @@ public class TestReplicationAdminWithClusters extends TestReplicationBase {
   }
 
   @Test(timeout = 300000)
+  public void disableNotFullReplication() throws Exception {
+    HTableDescriptor table = admin2.getTableDescriptor(tableName);
+    HColumnDescriptor f = new HColumnDescriptor("notReplicatedFamily");
+    table.addFamily(f);
+    admin1.disableTable(tableName);
+    admin1.modifyTable(tableName, table);
+    admin1.enableTable(tableName);
+
+
+    admin1.disableTableReplication(tableName);
+    table = admin1.getTableDescriptor(tableName);
+    for (HColumnDescriptor fam : table.getColumnFamilies()) {
+      assertEquals(fam.getScope(), HConstants.REPLICATION_SCOPE_LOCAL);
+    }
+  }
+
+  @Test(timeout = 300000)
   public void testEnableReplicationWhenSlaveClusterDoesntHaveTable() throws Exception {
     admin1.disableTableReplication(tableName);
     admin2.disableTable(tableName);