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feat: support direct load in jdbc connector #55

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Feb 4, 2024
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feat: support direct load in jdbc connector #55

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feat: support direct load
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@whhe
whhe committed Feb 4, 2024
commit 5a9b6419f43dba3a0569772733639f8d982e520d
45 changes: 25 additions & 20 deletions docs/sink/flink-connector-oceanbase.md
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Expand Up @@ -158,26 +158,31 @@ Once executed, the records should have been written to OceanBase.

## Configuration

| Option | Required by Table API | Required by DataStream | Default | Type | Description |
|--------------------------|-----------------------|------------------------|--------------------------|----------|-------------------------------------------------------------------------------------------------------------------------------------|
| url | Yes | Yes | | String | JDBC url. |
| username | Yes | Yes | | String | The username. |
| password | Yes | Yes | | String | The password. |
| schema-name | Yes | Not supported | | String | The schema name or database name. |
| table-name | Yes | Not supported | | String | The table name. |
| compatible-mode | No | No | mysql | String | The compatible mode of OceanBase, can be 'mysql' or 'oracle'. |
| driver-class-name | No | No | com.mysql.cj.jdbc.Driver | String | The driver class name, use 'com.mysql.cj.jdbc.Driver' by default. If other value is set, you need to introduce the driver manually. |
| cluster-name | No | No | | String | The cluster name of OceanBase, required when 'partition.enabled' is 'true'. |
| tenant-name | No | No | | String | The tenant name of OceanBase, required when 'partition.enabled' is 'true'. |
| druid-properties | No | No | | String | Druid connection pool properties, multiple values are separated by semicolons. |
| sync-write | No | No | false | Boolean | Whether to write data synchronously, will not use buffer if it's set to 'true'. |
| buffer-flush.interval | No | No | 1s | Duration | Buffer flush interval. Set '0' to disable scheduled flushing. |
| buffer-flush.buffer-size | No | No | 1000 | Integer | Buffer size. |
| max-retries | No | No | 3 | Integer | Max retry times on failure. |
| memstore-check.enabled | No | No | true | Boolean | Whether enable memstore check. |
| memstore-check.threshold | No | No | 0.9 | Double | Memstore usage threshold ratio relative to the limit value. |
| memstore-check.interval | No | No | 30s | Duration | Memstore check interval. |
| partition.enabled | No | No | false | Boolean | Whether to enable partition calculation and flush records by partitions. |
| Option | Required by Table API | Required by DataStream | Default | Type | Description |
|-------------------------------|-----------------------|------------------------|--------------------------|----------|----------------------------------------------------------------------------------------------------------------------------------------------|
| url | Yes | Yes | | String | JDBC url. |
| username | Yes | Yes | | String | The username. |
| password | Yes | Yes | | String | The password. |
| schema-name | Yes | Not supported | | String | The schema name or database name. |
| table-name | Yes | Not supported | | String | The table name. |
| driver-class-name | No | No | com.mysql.cj.jdbc.Driver | String | The driver class name, use 'com.mysql.cj.jdbc.Driver' by default. If other value is set, you need to introduce the driver manually. |
| druid-properties | No | No | | String | Druid connection pool properties, multiple values are separated by semicolons. |
| sync-write | No | No | false | Boolean | Whether to write data synchronously, will not use buffer if it's set to 'true'. |
| buffer-flush.interval | No | No | 1s | Duration | Buffer flush interval. Set '0' to disable scheduled flushing. |
| buffer-flush.buffer-size | No | No | 1000 | Integer | Buffer size. |
| max-retries | No | No | 3 | Integer | Max retry times on failure. |
| memstore-check.enabled | No | No | true | Boolean | Whether enable memstore check. |
| memstore-check.threshold | No | No | 0.9 | Double | Memstore usage threshold ratio relative to the limit value. |
| memstore-check.interval | No | No | 30s | Duration | Memstore check interval. |
| partition.enabled | No | No | false | Boolean | Whether to enable partition calculation and flush records by partitions. Only works when 'sync-write' and 'direct-load.enabled' are 'false'. |
| direct-load.enabled | No | No | false | Boolean | Whether to enable direct load. Note that direct load task requires the sink parallelism to be 1. |
| direct-load.host | No | No | | String | The hostname or IP address used in direct load task. Required when 'direct-load.enabled' is true. |
| direct-load.port | No | No | 2882 | Integer | The rpc port used in direct load task. Required when 'direct-load.enabled' is true. |
| direct-load.parallel | No | No | 8 | Integer | Parallelism of direct load task. |
| direct-load.max-error-rows | No | No | 0 | Long | Maximum tolerable number of error rows of direct load task. |
| direct-load.dup-action | No | No | REPLACE | STRING | Action when there is duplicated record of direct load task. Can be 'STOP_ON_DUP', 'REPLACE' or 'IGNORE'. |
| direct-load.timeout | No | No | 7d | Duration | Timeout for direct load task. |
| direct-load.heartbeat-timeout | No | No | 30s | Duration | Client heartbeat timeout in direct load task. |

## References

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