diff --git a/root-cloud-statistics/src/main/java/com/qniao/iot/rc/RootCloudIotDataFormatterJob.java b/root-cloud-statistics/src/main/java/com/qniao/iot/rc/RootCloudIotDataFormatterJob.java
index 4074bd8..27ed43d 100644
--- a/root-cloud-statistics/src/main/java/com/qniao/iot/rc/RootCloudIotDataFormatterJob.java
+++ b/root-cloud-statistics/src/main/java/com/qniao/iot/rc/RootCloudIotDataFormatterJob.java
@@ -32,6 +32,7 @@ import org.apache.flink.api.common.eventtime.WatermarkStrategy;
 import org.apache.flink.api.common.functions.MapFunction;
 import org.apache.flink.api.common.functions.RichMapFunction;
 import org.apache.flink.api.common.serialization.SimpleStringEncoder;
+import org.apache.flink.configuration.MemorySize;
 import org.apache.flink.connector.base.DeliveryGuarantee;
 import org.apache.flink.connector.kafka.sink.KafkaRecordSerializationSchema;
 import org.apache.flink.connector.kafka.sink.KafkaSink;
@@ -46,6 +47,7 @@ import org.apache.flink.streaming.api.functions.sink.filesystem.BucketAssigner;
 import org.apache.flink.streaming.api.functions.sink.filesystem.OutputFileConfig;
 import org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink;
 import org.apache.flink.streaming.api.functions.sink.filesystem.bucketassigners.SimpleVersionedStringSerializer;
+import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
 import org.apache.kafka.clients.CommonClientConfigs;
 import org.apache.kafka.clients.consumer.OffsetResetStrategy;
 import org.apache.kafka.clients.producer.ProducerConfig;
@@ -54,11 +56,13 @@ import org.apache.kafka.common.config.SaslConfigs;
 
 import java.math.BigDecimal;
 import java.security.Provider;
+import java.time.Duration;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneOffset;
 import java.time.format.DateTimeFormatter;
 import java.util.*;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Skeleton for a Flink DataStream Job.
@@ -161,7 +165,14 @@ public class RootCloudIotDataFormatterJob {
             public SimpleVersionedSerializer<String> getSerializer() {
                 return SimpleVersionedStringSerializer.INSTANCE;
             }
-        }).withOutputFileConfig(OutputFileConfig.builder().withPartSuffix(".json").build()).build();
+        }).withRollingPolicy(DefaultRollingPolicy.builder()
+                // 每隔多长时间生成一个文件
+                .withRolloverInterval(Duration.ofHours(12))
+                // 默认60秒,未写入数据处于不活跃状态超时会滚动新文件
+                .withInactivityInterval(Duration.ofHours(12))
+                // 设置每个文件的最大大小 ,默认是128M
+                .withMaxPartSize(MemorySize.ofMebiBytes(128 * 1024 * 1024))
+                .build()).withOutputFileConfig(OutputFileConfig.builder().withPartSuffix(".json").build()).build();
 
 
         transformDs.map(new RichMapFunction<MachineIotDataReceivedEvent, String>() {
diff --git a/root-cloud-statistics/src/test/java/com/qniao/iot/rc/EsRestClientService.java b/root-cloud-statistics/src/test/java/com/qniao/iot/rc/EsRestClientService.java
index 4213a49..773fbe1 100644
--- a/root-cloud-statistics/src/test/java/com/qniao/iot/rc/EsRestClientService.java
+++ b/root-cloud-statistics/src/test/java/com/qniao/iot/rc/EsRestClientService.java
@@ -25,12 +25,6 @@ import java.util.List;
 import java.util.Map;
 
 
-/**
- * 阿里云服务器搭建的ES服务
- *
- * @author lizixian
- * @date 2020/3/16 10:41
- */
 public class EsRestClientService {
 
     private String host = "120.79.137.137:9200";
@@ -57,8 +51,6 @@ public class EsRestClientService {
     /**
      * 分页查询应设备应用安装列表-使用游标
      *
-     * @author lizixian
-     * @date 2020/5/10 18:01
      */
     public void queryDeviceListPage(String scrollId, Map<String, Object> map, int count) {
 
diff --git a/root-cloud-statistics/src/test/java/com/qniao/iot/rc/TestDemo.java b/root-cloud-statistics/src/test/java/com/qniao/iot/rc/TestDemo.java
new file mode 100644
index 0000000..526a1ee
--- /dev/null
+++ b/root-cloud-statistics/src/test/java/com/qniao/iot/rc/TestDemo.java
@@ -0,0 +1,11 @@
+package com.qniao.iot.rc;
+
+import java.time.Duration;
+
+public class TestDemo {
+
+    public static void main(String[] args) {
+
+        System.out.println(Duration.ofMillis(5).toMillis());
+    }
+}