[NO ISSUE][TX] Remove Unused Fields in LogRecord

- user model changes: no
- storage format changes: no
- interface changes: yes
  - Remove nodeId from ILogRecord

Details:
- Remove the following fields which are
  no longer needed from LogRecord:
  - numOfFlushedIndexes
  - nodeId
- The removed fields were not persisted
  and only used for remote logs.

Change-Id: If293953e51525e27110909203941444c6d7eb344
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2269
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Ian Maxon <imaxon@apache.org>
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/DatasetLifecycleManager.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/DatasetLifecycleManager.java
index 5d3d125..3a70515 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/DatasetLifecycleManager.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/DatasetLifecycleManager.java
@@ -400,8 +400,7 @@
 
         if (dsInfo.isDurable()) {
             synchronized (logRecord) {
-                TransactionUtil.formFlushLogRecord(logRecord, dsInfo.getDatasetID(), null, logManager.getNodeId(),
-                        dsInfo.getIndexes().size());
+                TransactionUtil.formFlushLogRecord(logRecord, dsInfo.getDatasetID(), null);
                 try {
                     logManager.log(logRecord);
                 } catch (ACIDException e) {
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/PrimaryIndexOperationTracker.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/PrimaryIndexOperationTracker.java
index 14e91ba..5170310 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/PrimaryIndexOperationTracker.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/PrimaryIndexOperationTracker.java
@@ -129,8 +129,7 @@
                  * Generate a FLUSH log.
                  * Flush will be triggered when the log is written to disk by LogFlusher.
                  */
-                TransactionUtil.formFlushLogRecord(logRecord, datasetID, this, logManager.getNodeId(),
-                        dsInfo.getDatasetIndexes().size());
+                TransactionUtil.formFlushLogRecord(logRecord, datasetID, this);
                 try {
                     logManager.log(logRecord);
                 } catch (ACIDException e) {
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/ILogRecord.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/ILogRecord.java
index 3274849..7ddfdfb 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/ILogRecord.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/ILogRecord.java
@@ -128,8 +128,6 @@
 
     public void setPKValue(ITupleReference PKValue);
 
-    public String getNodeId();
-
     public void readRemoteLog(ByteBuffer buffer);
 
     public void setLogSource(byte logSource);
@@ -138,8 +136,6 @@
 
     public int getRemoteLogSize();
 
-    public void setNodeId(String nodeId);
-
     public int getResourcePartition();
 
     public void setResourcePartition(int resourcePartition);
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogRecord.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogRecord.java
index 6b38aa1..743a3fe 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogRecord.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogRecord.java
@@ -98,8 +98,6 @@
      * The fields (numOfFlushedIndexes and nodeId) are used for remote flush logs only
      * to indicate the source of the log and how many indexes were flushed using its LSN.
      */
-    private int numOfFlushedIndexes;
-    private String nodeId;
     private final AtomicBoolean replicated;
     private boolean replicate = false;
     private ILogRequester requester;
@@ -180,9 +178,6 @@
         doWriteLogRecord(buffer);
         if (logType == LogType.FLUSH) {
             buffer.putLong(LSN);
-            buffer.putInt(numOfFlushedIndexes);
-            buffer.putInt(nodeId.length());
-            buffer.put(nodeId.getBytes());
         }
     }
 
@@ -359,12 +354,6 @@
 
         if (logType == LogType.FLUSH) {
             LSN = buffer.getLong();
-            numOfFlushedIndexes = buffer.getInt();
-            //read serialized node id
-            int nodeIdLength = buffer.getInt();
-            byte[] nodeIdBytes = new byte[nodeIdLength];
-            buffer.get(nodeIdBytes);
-            nodeId = new String(nodeIdBytes);
         }
     }
 
@@ -545,10 +534,6 @@
         if (logType == LogType.FLUSH) {
             //LSN
             remoteLogSize += Long.BYTES;
-            //num of indexes
-            remoteLogSize += Integer.BYTES;
-            //serialized node id String
-            remoteLogSize += Integer.BYTES + nodeId.length();
         }
         remoteLogSize -= CHKSUM_LEN;
         return remoteLogSize;
@@ -631,16 +616,6 @@
     }
 
     @Override
-    public String getNodeId() {
-        return nodeId;
-    }
-
-    @Override
-    public void setNodeId(String nodeId) {
-        this.nodeId = nodeId;
-    }
-
-    @Override
     public void setLogSource(byte logSource) {
         this.logSource = logSource;
     }
@@ -650,14 +625,6 @@
         return logSource;
     }
 
-    public int getNumOfFlushedIndexes() {
-        return numOfFlushedIndexes;
-    }
-
-    public void setNumOfFlushedIndexes(int numOfFlushedIndexes) {
-        this.numOfFlushedIndexes = numOfFlushedIndexes;
-    }
-
     public void setPKFieldCnt(int pKFieldCnt) {
         PKFieldCnt = pKFieldCnt;
     }
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/TransactionUtil.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/TransactionUtil.java
index be4b47f..c3af0f3 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/TransactionUtil.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/TransactionUtil.java
@@ -45,14 +45,11 @@
         logRecord.computeAndSetLogSize();
     }
 
-    public static void formFlushLogRecord(LogRecord logRecord, int datasetId, PrimaryIndexOperationTracker opTracker,
-            String nodeId, int numberOfIndexes) {
+    public static void formFlushLogRecord(LogRecord logRecord, int datasetId, PrimaryIndexOperationTracker opTracker) {
         logRecord.setLogType(LogType.FLUSH);
         logRecord.setTxnId(-1);
         logRecord.setDatasetId(datasetId);
         logRecord.setOpTracker(opTracker);
-        logRecord.setNumOfFlushedIndexes(numberOfIndexes);
-        logRecord.setNodeId(nodeId);
         logRecord.computeAndSetLogSize();
     }
 
diff --git a/asterixdb/asterix-replication/src/main/java/org/apache/asterix/replication/logging/RemoteLogsProcessor.java b/asterixdb/asterix-replication/src/main/java/org/apache/asterix/replication/logging/RemoteLogsProcessor.java
index c054e6c..5009614 100644
--- a/asterixdb/asterix-replication/src/main/java/org/apache/asterix/replication/logging/RemoteLogsProcessor.java
+++ b/asterixdb/asterix-replication/src/main/java/org/apache/asterix/replication/logging/RemoteLogsProcessor.java
@@ -67,9 +67,7 @@
                     break;
                 case LogType.FLUSH:
                     RemoteLogRecord flushLog = new RemoteLogRecord();
-                    TransactionUtil
-                            .formFlushLogRecord(flushLog, reusableLog.getDatasetId(), null, reusableLog.getNodeId(),
-                                    reusableLog.getNumOfFlushedIndexes());
+                    TransactionUtil.formFlushLogRecord(flushLog, reusableLog.getDatasetId(), null);
                     flushLog.setRequester(this);
                     flushLog.setLogSource(LogSource.REMOTE);
                     flushLog.setMasterLsn(reusableLog.getLSN());