237c0807a4
Support ALTER ROUTINE LOAD JOB stmt, for example: ``` alter routine load db1.label1 properties ( "desired_concurrent_number"="3", "max_batch_interval" = "5", "max_batch_rows" = "300000", "max_batch_size" = "209715200", "strict_mode" = "false", "timezone" = "+08:00" ) ``` Details can be found in `alter-routine-load.md`
112 lines
2.6 KiB
Markdown
112 lines
2.6 KiB
Markdown
---
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{
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"title": "ALTER ROUTINE LOAD",
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"language": "en"
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}
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---
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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# ALTER ROUTINE LOAD
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## description
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This syntax is used to modify a routine import job that has been created.
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Only jobs in the PAUSED state can be modified.
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Syntax:
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ALTER ROUTINE LOAD FOR [db.]job_name
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[job_properties]
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FROM data_source
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[data_source_properties]
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1. `[db.]job_name`
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Specify the name of the job to be modified.
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2. `job_properties`
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Specify the job parameters that need to be modified. Currently only supports the modification of the following parameters:
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1. `desired_concurrent_number`
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2. `max_error_number`
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3. `max_batch_interval`
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4. `max_batch_rows`
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5. `max_batch_size`
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6. `jsonpaths`
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7. `json_root`
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8. `strip_outer_array`
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9. `strict_mode`
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10. `timezone`
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3. `data_source`
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The type of data source. Currently supported:
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KAFKA
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4. `data_source_properties`
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The relevant attributes of the data source. Currently only supports:
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1. `kafka_partitions`
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2. `kafka_offsets`
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3. Custom property, such as `property.group.id`
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Notice：
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1. `kafka_partitions` and `kafka_offsets` are used to modify the offset of the kafka partition to be consumed, and can only modify the currently consumed partition. Cannot add partition.
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## example
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1. Modify `desired_concurrent_number` to 1
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```
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ALTER ROUTINE LOAD FOR db1.label1
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PROPERTIES
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(
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"desired_concurrent_number" = "1"
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);
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```
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2. Modify `desired_concurrent_number` to 10, modify partition offset, and modify group id。
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```
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ALTER ROUTINE LOAD FOR db1.label1
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PROPERTIES
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(
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"desired_concurrent_number" = "10"
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)
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FROM kafka
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(
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"kafka_partitions" = "0, 1, 2",
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"kafka_offsets" = "100, 200, 100",
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"property.group.id" = "new_group"
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);
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```
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## keyword
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ALTER,ROUTINE,LOAD
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