update

spark-doris-connector/pom.xml

@@ -184,6 +184,15 @@
             <artifactId>jackson-core</artifactId>
             <version>${fasterxml.jackson.version}</version>
         </dependency>
+
+        <!-- https://mvnrepository.com/artifact/com.mysql/mysql-connector-j -->
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+            <version>8.0.33</version>
+            <scope>test</scope>
+        </dependency>
+
     </dependencies>
 
     <build>

spark-doris-connector/src/main/java/org/apache/doris/spark/cfg/ConfigurationOptions.java

@@ -20,6 +20,7 @@
 public interface ConfigurationOptions {
     // doris fe node address
     String DORIS_FENODES = "doris.fenodes";
+    String DORIS_QUERY_PORT = "doris.query.port";
 
     String DORIS_DEFAULT_CLUSTER = "default_cluster";
 
@@ -70,7 +71,7 @@ public interface ConfigurationOptions {
     int SINK_BATCH_SIZE_DEFAULT = 100000;
 
     String DORIS_SINK_MAX_RETRIES = "doris.sink.max-retries";
-    int SINK_MAX_RETRIES_DEFAULT = 1;
+    int SINK_MAX_RETRIES_DEFAULT = 0;
 
     String DORIS_MAX_FILTER_RATIO = "doris.max.filter.ratio";
 

spark-doris-connector/src/main/java/org/apache/doris/spark/load/DorisStreamLoad.java

@@ -101,7 +101,6 @@ public class DorisStreamLoad implements Serializable {
     private String FIELD_DELIMITER;
     private final String LINE_DELIMITER;
     private boolean streamingPassthrough = false;
-    private final Integer batchSize;
     private final boolean enable2PC;
     private final Integer txnRetries;
     private final Integer txnIntervalMs;
@@ -133,8 +132,6 @@ public DorisStreamLoad(SparkSettings settings) {
         LINE_DELIMITER = escapeString(streamLoadProp.getOrDefault("line_delimiter", "\n"));
         this.streamingPassthrough = settings.getBooleanProperty(ConfigurationOptions.DORIS_SINK_STREAMING_PASSTHROUGH,
                 ConfigurationOptions.DORIS_SINK_STREAMING_PASSTHROUGH_DEFAULT);
-        this.batchSize = settings.getIntegerProperty(ConfigurationOptions.DORIS_SINK_BATCH_SIZE,
-                ConfigurationOptions.SINK_BATCH_SIZE_DEFAULT);
         this.enable2PC = settings.getBooleanProperty(ConfigurationOptions.DORIS_SINK_ENABLE_2PC,
                 ConfigurationOptions.DORIS_SINK_ENABLE_2PC_DEFAULT);
         this.txnRetries = settings.getIntegerProperty(ConfigurationOptions.DORIS_SINK_TXN_RETRIES,
@@ -215,7 +212,6 @@ public long load(Iterator<InternalRow> rows, StructType schema)
             this.loadUrlStr = loadUrlStr;
             HttpPut httpPut = getHttpPut(label, loadUrlStr, enable2PC);
             RecordBatchInputStream recodeBatchInputStream = new RecordBatchInputStream(RecordBatch.newBuilder(rows)
-                    .batchSize(batchSize)
                     .format(fileType)
                     .sep(FIELD_DELIMITER)
                     .delim(LINE_DELIMITER)

spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatch.java

@@ -36,11 +36,6 @@ public class RecordBatch {
      */
     private final Iterator<InternalRow> iterator;
 
-    /**
-     * batch size for single load
-     */
-    private final int batchSize;
-
     /**
      * stream load format
      */
@@ -63,10 +58,9 @@ public class RecordBatch {
 
     private final boolean addDoubleQuotes;
 
-    private RecordBatch(Iterator<InternalRow> iterator, int batchSize, String format, String sep, byte[] delim,
+    private RecordBatch(Iterator<InternalRow> iterator, String format, String sep, byte[] delim,
                         StructType schema, boolean addDoubleQuotes) {
         this.iterator = iterator;
-        this.batchSize = batchSize;
         this.format = format;
         this.sep = sep;
         this.delim = delim;
@@ -78,10 +72,6 @@ public Iterator<InternalRow> getIterator() {
         return iterator;
     }
 
-    public int getBatchSize() {
-        return batchSize;
-    }
-
     public String getFormat() {
         return format;
     }
@@ -112,8 +102,6 @@ public static class Builder {
 
         private final Iterator<InternalRow> iterator;
 
-        private int batchSize;
-
         private String format;
 
         private String sep;
@@ -128,11 +116,6 @@ public Builder(Iterator<InternalRow> iterator) {
             this.iterator = iterator;
         }
 
-        public Builder batchSize(int batchSize) {
-            this.batchSize = batchSize;
-            return this;
-        }
-
         public Builder format(String format) {
             this.format = format;
             return this;
@@ -159,7 +142,7 @@ public Builder addDoubleQuotes(boolean addDoubleQuotes) {
         }
 
         public RecordBatch build() {
-            return new RecordBatch(iterator, batchSize, format, sep, delim, schema, addDoubleQuotes);
+            return new RecordBatch(iterator, format, sep, delim, schema, addDoubleQuotes);
         }
 
     }

spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatchInputStream.java

@@ -40,8 +40,6 @@ public class RecordBatchInputStream extends InputStream {
 
     public static final Logger LOG = LoggerFactory.getLogger(RecordBatchInputStream.class);
 
-    private static final int DEFAULT_BUF_SIZE = 4096;
-
     /**
      * Load record batch
      */
@@ -55,12 +53,12 @@ public class RecordBatchInputStream extends InputStream {
     /**
      * record buffer
      */
-    private ByteBuffer buffer = ByteBuffer.allocate(0);
 
-    /**
-     * record count has been read
-     */
-    private int readCount = 0;
+    private ByteBuffer lineBuf = ByteBuffer.allocate(0);;
+
+    private ByteBuffer delimBuf = ByteBuffer.allocate(0);
+
+    private final byte[] delim;
 
     /**
      * streaming mode pass through data without process
@@ -70,31 +68,42 @@ public class RecordBatchInputStream extends InputStream {
     public RecordBatchInputStream(RecordBatch recordBatch, boolean passThrough) {
         this.recordBatch = recordBatch;
         this.passThrough = passThrough;
+        this.delim = recordBatch.getDelim();
     }
 
     @Override
     public int read() throws IOException {
         try {
-            if (buffer.remaining() == 0 && endOfBatch()) {
-                return -1; // End of stream
+            if (lineBuf.remaining() == 0 && endOfBatch()) {
+                return -1;
+            }
+
+            if (delimBuf != null && delimBuf.remaining() > 0) {
+                return delimBuf.get() & 0xff;
             }
         } catch (DorisException e) {
             throw new IOException(e);
         }
-        return buffer.get() & 0xFF;
+        return lineBuf.get() & 0xFF;
     }
 
     @Override
     public int read(byte[] b, int off, int len) throws IOException {
         try {
-            if (buffer.remaining() == 0 && endOfBatch()) {
-                return -1; // End of stream
+            if (lineBuf.remaining() == 0 && endOfBatch()) {
+                return -1;
+            }
+
+            if (delimBuf != null && delimBuf.remaining() > 0) {
+                int bytesRead = Math.min(len, delimBuf.remaining());
+                delimBuf.get(b, off, bytesRead);
+                return bytesRead;
             }
         } catch (DorisException e) {
             throw new IOException(e);
         }
-        int bytesRead = Math.min(len, buffer.remaining());
-        buffer.get(b, off, bytesRead);
+        int bytesRead = Math.min(len, lineBuf.remaining());
+        lineBuf.get(b, off, bytesRead);
         return bytesRead;
     }
 
@@ -108,11 +117,12 @@ public int read(byte[] b, int off, int len) throws IOException {
      */
     public boolean endOfBatch() throws DorisException {
         Iterator<InternalRow> iterator = recordBatch.getIterator();
-        if (readCount >= recordBatch.getBatchSize() || !iterator.hasNext()) {
-            return true;
+        if (iterator.hasNext()) {
+            readNext(iterator);
+            return false;
         }
-        readNext(iterator);
-        return false;
+        delimBuf = null;
+        return true;
     }
 
     /**
@@ -125,60 +135,15 @@ private void readNext(Iterator<InternalRow> iterator) throws DorisException {
         if (!iterator.hasNext()) {
             throw new ShouldNeverHappenException();
         }
-        byte[] delim = recordBatch.getDelim();
         byte[] rowBytes = rowToByte(iterator.next());
         if (isFirst) {
-            ensureCapacity(rowBytes.length);
-            buffer.put(rowBytes);
-            buffer.flip();
+            delimBuf = null;
+            lineBuf = ByteBuffer.wrap(rowBytes);
             isFirst = false;
         } else {
-            ensureCapacity(delim.length + rowBytes.length);
-            buffer.put(delim);
-            buffer.put(rowBytes);
-            buffer.flip();
-        }
-        readCount++;
-    }
-
-    /**
-     * Check if the buffer has enough capacity.
-     *
-     * @param need required buffer space
-     */
-    private void ensureCapacity(int need) {
-
-        int capacity = buffer.capacity();
-
-        if (need <= capacity) {
-            buffer.clear();
-            return;
-        }
-
-        // need to extend
-        int newCapacity = calculateNewCapacity(capacity, need);
-        LOG.info("expand buffer, min cap: {}, now cap: {}, new cap: {}", need, capacity, newCapacity);
-        buffer = ByteBuffer.allocate(newCapacity);
-
-    }
-
-    /**
-     * Calculate new capacity for buffer expansion.
-     *
-     * @param capacity current buffer capacity
-     * @param minCapacity required min buffer space
-     * @return new capacity
-     */
-    private int calculateNewCapacity(int capacity, int minCapacity) {
-        int newCapacity = 0;
-        if (capacity == 0) {
-            newCapacity = DEFAULT_BUF_SIZE;
-
-        }
-        while (newCapacity < minCapacity) {
-            newCapacity = newCapacity << 1;
+            delimBuf =  ByteBuffer.wrap(delim);
+            lineBuf = ByteBuffer.wrap(rowBytes);
         }
-        return newCapacity;
     }
 
     /**
@@ -220,5 +185,4 @@ private byte[] rowToByte(InternalRow row) throws DorisException {
 
     }
 
-
 }

spark-doris-connector/src/main/scala/org/apache/doris/spark/jdbc/JdbcUtils.scala

@@ -0,0 +1,34 @@
+// 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.
+
+package org.apache.doris.spark.jdbc
+
+import java.sql.{Connection, DriverManager}
+import java.util.Properties
+
+object JdbcUtils {
+
+  def getJdbcUrl(host: String, port: Int): String = s"jdbc:mysql://$host:$port/information_schema"
+
+  def getConnection(url: String, props: Properties): Connection = {
+
+    DriverManager.getConnection(url, props)
+  }
+
+  def getTruncateQuery(table: String): String = s"TRUNCATE TABLE $table"
+
+}

spark-doris-connector/src/main/scala/org/apache/doris/spark/listener/DorisTransactionListener.scala

@@ -47,8 +47,8 @@ class DorisTransactionListener(preCommittedTxnAcc: CollectionAccumulator[Long],
         txnIds.foreach(txnId =>
           Utils.retry(sinkTxnRetries, Duration.ofMillis(sinkTnxIntervalMs), logger) {
             dorisStreamLoad.commit(txnId)
-          } match {
-            case Success(_) =>
+          } () match {
+            case Success(_) => // do nothing
             case Failure(_) => failedTxnIds += txnId
           }
         )
@@ -68,8 +68,8 @@ class DorisTransactionListener(preCommittedTxnAcc: CollectionAccumulator[Long],
         txnIds.foreach(txnId =>
           Utils.retry(sinkTxnRetries, Duration.ofMillis(sinkTnxIntervalMs), logger) {
             dorisStreamLoad.abortById(txnId)
-          } match {
-            case Success(_) =>
+          } () match {
+            case Success(_) => // do nothing
             case Failure(_) => failedTxnIds += txnId
           })
         if (failedTxnIds.nonEmpty) {

spark-doris-connector/src/main/scala/org/apache/doris/spark/sql/DorisRelation.scala

@@ -23,7 +23,7 @@ import org.apache.spark.rdd.RDD
 import org.apache.spark.sql.jdbc.JdbcDialects
 import org.apache.spark.sql.sources._
 import org.apache.spark.sql.types.StructType
-import org.apache.spark.sql.{DataFrame, Row, SQLContext}
+import org.apache.spark.sql.{DataFrame, Row, SQLContext, SaveMode}
 
 import scala.collection.JavaConverters._
 import scala.collection.mutable
@@ -98,6 +98,7 @@ private[sql] class DorisRelation(
     }
     data.write.format(DorisSourceProvider.SHORT_NAME)
       .options(insertCfg)
+      .mode(if (overwrite) SaveMode.Overwrite else SaveMode.Append)
       .save()
   }
 }