ALTER ROUTINE LOAD

Description

This syntax is used to modify an already created routine import job.

Only jobs in the PAUSED state can be modified.

grammar:

ALTER ROUTINE LOAD FOR [db.]job_name
[job_properties]
FROM data_source
[data_source_properties]

1. [db.]job_name

   Specifies the job name to modify.

2. tbl_name

   Specifies the name of the table to be imported.

3. job_properties

   Specifies the job parameters that need to be modified. Currently, only the modification of the following parameters is supported:

   1. desired_concurrent_number
   2. max_error_number
   3. max_batch_interval
   4. max_batch_rows
   5. max_batch_size
   6. jsonpaths
   7. json_root
   8. strip_outer_array
   9. strict_mode
   10. timezone
   11. num_as_string
   12. fuzzy_parse
   13. partial_columns
   14. max_filter_ratio

4. data_source

   The type of data source. Currently supports:

   KAFKA

5. data_source_properties

   Relevant properties of the data source. Currently only supports:

   1. kafka_partitions
   2. kafka_offsets
   3. kafka_broker_list
   4. kafka_topic
   5. Custom properties, such as property.group.id

   Note:

   1. kafka_partitions and kafka_offsets are used to modify the offset of the kafka partition to be consumed, only the currently consumed partition can be modified. Cannot add partition.

Examples

1. Change desired_concurrent_number to 1

   ALTER ROUTINE LOAD FOR db1.label1
   PROPERTIES
   (
       "desired_concurrent_number" = "1"
   );

2. Modify desired_concurrent_number to 10, modify the offset of the partition, and modify the group id.

   ALTER ROUTINE LOAD FOR db1.label1
   PROPERTIES
   (
       "desired_concurrent_number" = "10"
   )
   FROM kafka
   (
       "kafka_partitions" = "0, 1, 2",
       "kafka_offsets" = "100, 200, 100",
       "property.group.id" = "new_group"
   );

Keywords

ALTER, ROUTINE, LOAD

Best Practice