[improve](routine load) adjust default values to make routine load mo…

…re convenient to use (apache#42491)

For a routine load job, it will be divided into many tasks, each of
which is a transaction. Currently, the default time
consumed(max_batch_interval) is 10 seconds. The benefits of increasing
this value are:
1. Larger batch consumption can lead to better performance.
2. Reducing the number of transactions can alleviate the pressure of
compaction and the conflicts of concurrent transaction submissions.

related doc: https://github.com/apache/doris-website/pull/1236/files

be/src/runtime/stream_load/stream_load_context.h

@@ -164,9 +164,10 @@ class StreamLoadContext {
 
     // the following members control the max progress of a consuming
     // process. if any of them reach, the consuming will finish.
-    int64_t max_interval_s = 5;
-    int64_t max_batch_rows = 100000;
-    int64_t max_batch_size = 100 * 1024 * 1024; // 100MB
+    // same as values set in fe/fe-core/src/main/java/org/apache/doris/load/routineload/RoutineLoadJob.java
+    int64_t max_interval_s = 60;
+    int64_t max_batch_rows = 20000000;
+    int64_t max_batch_size = 1024 * 1024 * 1024; // 1GB
 
     // for parse json-data
     std::string data_format = "";

fe/fe-core/src/main/java/org/apache/doris/load/routineload/RoutineLoadJob.java

@@ -113,7 +113,7 @@ public abstract class RoutineLoadJob
     public static final long DEFAULT_MAX_ERROR_NUM = 0;
     public static final double DEFAULT_MAX_FILTER_RATIO = 1.0;
 
-    public static final long DEFAULT_MAX_INTERVAL_SECOND = 10;
+    public static final long DEFAULT_MAX_INTERVAL_SECOND = 60;
     public static final long DEFAULT_MAX_BATCH_ROWS = 20000000;
     public static final long DEFAULT_MAX_BATCH_SIZE = 1024 * 1024 * 1024; // 1GB
     public static final long DEFAULT_EXEC_MEM_LIMIT = 2 * 1024 * 1024 * 1024L;

fe/fe-core/src/test/java/org/apache/doris/load/routineload/RoutineLoadJobTest.java

@@ -362,7 +362,7 @@ public void testGetShowCreateInfo() throws UserException {
                 + "\"desired_concurrent_number\" = \"0\",\n"
                 + "\"max_error_number\" = \"10\",\n"
                 + "\"max_filter_ratio\" = \"1.0\",\n"
-                + "\"max_batch_interval\" = \"10\",\n"
+                + "\"max_batch_interval\" = \"60\",\n"
                 + "\"max_batch_rows\" = \"10\",\n"
                 + "\"max_batch_size\" = \"1073741824\",\n"
                 + "\"format\" = \"csv\",\n"