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Property name
Type & Default Value
Description
비고
int: 1
Specify how many instances of the sink will be run. If the value is bigger than 1, the order of the messages may not be retained.
int: 1024
Specify how many messages can be buffered in memory. If the buffered messages exceed the limit, the sink will block message receiving until the buffered messages have been sent out so that the buffered size is less than the limit.
bool: false
Wherther the sink will run asynchronously for better performance. If it is true, the sink result order is not promised.
int: 1000
Specify how many milliseconds will the sink retry to send data out if the previous send failed. If the specified value <= 0, then it will not retry.
int: 3
Specify how many will the sink retry to send data out if the previous send failed. If the specified value <= 0, then it will not retry.
int: 1024
Specify how many messages can be cached. The cached messages will be resent to external system until the data sent out succesfully. The cached message will be sent in order except in runAsync or concurrent mode. The cached message will be saved to disk in fixed intervals.
int:1000
Specify the interval to save cached message to the disk. Notice that, if the rule is closed in plan, all the cached messages will be saved at close. A larger value can reduce the saving overhead but may lose more cache messages when the system is interrupted in error.
bool: false
If the configuration item is set to true, when SELECT result is empty, then the result will not feed to sink operator.
경고 메시지에 사용될 수 있을듯
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The output messages are received as an array. This is indicate whether to send the results one by one. If false, the output message will be {"result":"${the string of received message}"}. For example, {"result":"[{\"count\":30},"\"count\":20}]"}. Otherwise, the result message will be sent one by one with the actual field name. For the same example as above, it will send {"count":30}, then send {"count":20} to the RESTful endpoint. Defualt to false.
??
The golang template (opens new window) format string to specify the output data format. The input of the template is the sink message which is always an array of map. If no data template is specified, the raw input will be the data.
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