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Posted to commits@hbase.apache.org by te...@apache.org on 2017/10/20 19:47:07 UTC

hbase git commit: HBASE-17934 Backport HBASE-17779 "disable_table_replication returns misleading message and does not turn off replication" (Janos Gub)

Repository: hbase
Updated Branches:
  refs/heads/branch-1.3 1300faffb -> ba7633073


HBASE-17934 Backport 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/ba763307
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/ba763307
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/ba763307

Branch: refs/heads/branch-1.3
Commit: ba76330732d11c3a0f4a2c1b0790a30ef589208f
Parents: 1300faf
Author: tedyu <yu...@gmail.com>
Authored: Fri Oct 20 12:47:03 2017 -0700
Committer: tedyu <yu...@gmail.com>
Committed: Fri Oct 20 12:47:03 2017 -0700

----------------------------------------------------------------------
 .../client/replication/ReplicationAdmin.java    | 35 +++++++++++++++-----
 .../TestReplicationAdminWithClusters.java       | 17 ++++++++++
 2 files changed, 44 insertions(+), 8 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/ba763307/hbase-client/src/main/java/org/apache/hadoop/hbase/client/replication/ReplicationAdmin.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/replication/ReplicationAdmin.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/replication/ReplicationAdmin.java
index 4e522c8..91e5ac6 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/replication/ReplicationAdmin.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/replication/ReplicationAdmin.java
@@ -660,15 +660,17 @@ public class ReplicationAdmin implements Closeable {
   /**
    * 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 {
     Admin admin = null;
     try {
       admin = this.connection.getAdmin();
       HTableDescriptor htd = admin.getTableDescriptor(tableName);
-      if (isTableRepEnabled(htd) ^ isRepEnabled) {
+      ReplicationState currentReplicationState = getTableReplicationState(htd);
+      if (enableRep && currentReplicationState != ReplicationState.ENABLED
+          || !enableRep && currentReplicationState != ReplicationState.DISABLED) {
         boolean isOnlineSchemaUpdateEnabled =
             this.connection.getConfiguration()
                 .getBoolean("hbase.online.schema.update.enable", true);
@@ -676,7 +678,7 @@ public class ReplicationAdmin implements Closeable {
           admin.disableTable(tableName);
         }
         for (HColumnDescriptor hcd : htd.getFamilies()) {
-          hcd.setScope(isRepEnabled ? HConstants.REPLICATION_SCOPE_GLOBAL
+          hcd.setScope(enableRep ? HConstants.REPLICATION_SCOPE_GLOBAL
               : HConstants.REPLICATION_SCOPE_LOCAL);
         }
         admin.modifyTable(tableName, htd);
@@ -697,15 +699,32 @@ public class ReplicationAdmin implements Closeable {
   }
 
   /**
+   * 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) {
-        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/ba763307/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 d628a7c..ab95c43 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
@@ -67,6 +67,23 @@ 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);
+
+
+    admin.disableTableRep(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 {
     admin2.disableTable(tableName);
     admin2.deleteTable(tableName);