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From GitBox <...@apache.org>
Subject [GitHub] [phoenix] swaroopak commented on a change in pull request #499: Phoenix-5272 ALTER INDEX REBUILD ALL
Date Sun, 12 May 2019 00:20:59 GMT
swaroopak commented on a change in pull request #499: Phoenix-5272 ALTER INDEX REBUILD ALL

URL: https://github.com/apache/phoenix/pull/499#discussion_r281459554
 
 

 ##########
 File path: phoenix-core/src/test/java/org/apache/phoenix/util/TestUtil.java
 ##########
 @@ -934,7 +934,30 @@ public IndexStateCheck(PIndexState indexState, Long indexDisableTimestamp,
Boole
     		this.success = success;
     	}
     }
-    
+
+    public static void waitForIndexState(Connection conn, String fullIndexName, PIndexState
expectedIndexState) throws InterruptedException, SQLException {
+        int maxTries = 60, nTries = 0;
+        do {
+            String schema = SchemaUtil.getSchemaNameFromFullName(fullIndexName);
+            String index = SchemaUtil.getTableNameFromFullName(fullIndexName);
+            Thread.sleep(1000); // sleep 1 sec
+            String query = "SELECT " + PhoenixDatabaseMetaData.INDEX_STATE + " FROM " +
+                    PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME + " WHERE (" + PhoenixDatabaseMetaData.TABLE_SCHEM
+ "," + PhoenixDatabaseMetaData.TABLE_NAME
+                    + ") = (" + "'" + schema + "','" + index + "') "
+                    + "AND " + PhoenixDatabaseMetaData.COLUMN_FAMILY + " IS NULL AND " +
PhoenixDatabaseMetaData.COLUMN_NAME + " IS NULL";
+            ResultSet rs = conn.createStatement().executeQuery(query);
+            PIndexState actualIndexState = null;
+            if (rs.next()) {
+                actualIndexState = PIndexState.fromSerializedValue(rs.getString(1));
+                boolean matchesExpected = (actualIndexState == expectedIndexState);
+                if (matchesExpected) {
+                    return;
+                }
+            }
+        } while (++nTries < maxTries);
 
 Review comment:
   Do you wanna utilize exponential backoff? Maybe worth looking at hbase's RetryCounter utility.


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