Fix CommitLogReplayer date time issue

patch by Vijay ; reviewed by jbellis for CASSANDRA-5909

conf/commitlog_archiving.properties

@@ -43,8 +43,8 @@ restore_command=
 # Directory to scan the recovery files in.
 restore_directories=
 
-# Restore mutations created up to and including this timestamp.
-# Format: 2012-04-31 20:43:12
+# Restore mutations created up to and including this timestamp in GMT.
+# Format: yyyy:MM:dd HH:mm:ss (2012:04:31 20:43:12)
 #
 # Note! Recovery will stop when the first client-supplied timestamp
 # greater than this time is encountered.  Since the order Cassandra
@@ -52,3 +52,6 @@ restore_directories=
 # this may leave some mutations with timestamps earlier than the
 # point-in-time unrecovered.
 restore_point_in_time=
+
+# precision of the timestamp used in the inserts (MILLISECONDS, MICROSECONDS, ...)
+precision=MILLISECONDS

src/java/org/apache/cassandra/db/commitlog/CommitLogArchiver.java

@@ -27,6 +27,7 @@ import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Map;
 import java.util.Properties;
+import java.util.TimeZone;
 import java.util.concurrent.*;
 
 import org.apache.cassandra.concurrent.JMXEnabledThreadPoolExecutor;
@@ -43,12 +44,19 @@ import com.google.common.base.Strings;
 public class CommitLogArchiver
 {
     private static final Logger logger = LoggerFactory.getLogger(CommitLogArchiver.class);
+    public static final SimpleDateFormat format = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss");
+    static
+    {
+        format.setTimeZone(TimeZone.getTimeZone("GMT"));
+    }
+
     public final Map<String, Future<?>> archivePending = new ConcurrentHashMap<String, Future<?>>();
     public final ExecutorService executor = new JMXEnabledThreadPoolExecutor("commitlog_archiver");
     private final String archiveCommand;
     private final String restoreCommand;
     private final String restoreDirectories;
     public final long restorePointInTime;
+    public final TimeUnit precision;
 
     public CommitLogArchiver()
     {
@@ -65,6 +73,7 @@ public class CommitLogArchiver
                 restoreCommand = null;
                 restoreDirectories = null;
                 restorePointInTime = Long.MAX_VALUE;
+                precision = TimeUnit.MILLISECONDS;
             }
             else
             {
@@ -73,9 +82,10 @@ public class CommitLogArchiver
                 restoreCommand = commitlog_commands.getProperty("restore_command");
                 restoreDirectories = commitlog_commands.getProperty("restore_directories");
                 String targetTime = commitlog_commands.getProperty("restore_point_in_time");
+                precision = TimeUnit.valueOf(commitlog_commands.getProperty("precision", "MILLISECONDS"));
                 try
                 {
-                    restorePointInTime = Strings.isNullOrEmpty(targetTime) ? Long.MAX_VALUE : new SimpleDateFormat("yyyy:MM:dd HH:mm:ss").parse(targetTime).getTime();
+                    restorePointInTime = Strings.isNullOrEmpty(targetTime) ? Long.MAX_VALUE : format.parse(targetTime).getTime();
                 }
                 catch (ParseException e)
                 {

src/java/org/apache/cassandra/db/commitlog/CommitLogReplayer.java

@@ -281,7 +281,7 @@ public class CommitLogReplayer
 
         for (ColumnFamily families : frm.getColumnFamilies())
         {
-            if (families.maxTimestamp() > restoreTarget)
+            if (CommitLog.instance.archiver.precision.toMillis(families.maxTimestamp()) > restoreTarget)
                 return true;
         }
         return false;

test/conf/commitlog_archiving.properties

@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+restore_point_in_time=2112:12:12 12:12:12
+precision=MICROSECONDS

test/unit/org/apache/cassandra/db/RecoveryManagerTest.java

@@ -19,13 +19,17 @@
 package org.apache.cassandra.db;
 
 import java.io.IOException;
+import java.util.Date;
 import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
 
 import org.apache.cassandra.Util;
+import org.junit.Assert;
 import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.db.commitlog.CommitLog;
+import org.apache.cassandra.db.commitlog.CommitLogArchiver;
 import org.apache.cassandra.utils.ByteBufferUtil;
 
 import static org.apache.cassandra.Util.column;
@@ -101,4 +105,29 @@ public class RecoveryManagerTest extends SchemaLoader
         assert c != null;
         assert ((CounterColumn)c).total() == 10L;
     }
+
+    @Test
+    public void testRecoverPIT() throws Exception
+    {
+        Date date = CommitLogArchiver.format.parse("2112:12:12 12:12:12");
+        long timeMS = date.getTime() - 5000;
+
+        Table keyspace1 = Table.open("Keyspace1");
+        DecoratedKey dk = Util.dk("dkey");
+        for (int i = 0; i < 10; ++i)
+        {
+            long ts = TimeUnit.MILLISECONDS.toMicros(timeMS + (i * 1000));
+            ColumnFamily cf = ColumnFamily.create("Keyspace1", "Standard1");
+            cf.addColumn(column("name-" + i, "value", ts));
+            RowMutation rm = new RowMutation("Keyspace1", dk.key);
+            rm.add(cf);
+            rm.apply();
+        }
+        keyspace1.getColumnFamilyStore("Standard1").clearUnsafe();
+        CommitLog.instance.resetUnsafe(); // disassociate segments from live CL
+        CommitLog.instance.recover();
+
+        ColumnFamily cf = Util.getColumnFamily(keyspace1, dk, "Standard1");
+        Assert.assertEquals(6, cf.getColumnCount());
+    }
 }