Specify each parameter in the following format:
parameter-name=value |
You can specify any file name. This file name must be specified in the stream.propertyFiles parameter in the applicable query group property file.
This file must be stored in the following directory:
working-directory\conf\
This file specifies tuning parameters for a stream in a query group. You create this file for a stream only if you want to specify tuning parameters specifically for the stream.
The table below lists and describes the parameters that can be specified and their default values. For details about the parameters, see 8.8.2 Details of the parameters in the stream property file.
Table 8-6 Specifiable parameters and their default values (stream property file)
No. | Parameter name | Description | Default value | Permitted value range | Whether or not changeable during restart#1 |
---|---|---|---|---|---|
1 | stream.filterCondition | Specifies a conditional expression for using the timestamp adjustment function to filter tuples. | Value specified in the query group property file#2 | -- | Y |
2 | stream.filterMode | Specifies whether the timestamp adjustment function is to be used to filter tuples: unuse: Does not filter tuples. condition: Filters tuples. | Value specified in the query group property file#2 | unuse or condition | Y |
3 | stream.freeInputQueueSizeThreshold | Specifies a threshold value (%) for the available size with respect to the maximum number of elements used in the input stream queue. | Value specified in the query group property file#2 | Integer from 1 to 99 | Y |
4 | stream.freeInputQueueSizeThresholdOutputMessage | Specifies whether a warning message is to be output to the SDP server's message log: true: Outputs warning message. false: Does not output warning message. | Value specified in the query group property file#2 | true or false | Y |
5 | stream.maxKeepTupleCount | Specifies the maximum number of tuples that can be retained by the timestamp adjustment function. | Value specified in the query group property file#2 | Integer from 1 to 1048576 | Y |
6 | stream.streamName | Specifies the stream name. | None | -- | Y |
7 | stream.timestampAccuracy | Specifies the time units and time adjustment range for the timestamp adjustment function. | Value specified in the query group property file#2 | See 8.8.2(7) stream.timestampAccuracy={{sec|msec|usec},time-adjustment-range|unuse}. | Y |
8 | stream.timestampPosition | Specifies the name of the time-data column in tuples. | Value specified in the query group property file#2 | See 8.8.2(8) stream.timestampPosition=time-data-column-name. | Y |
9 | tpl.backupFileCount | Specifies the maximum number of backup generations to be retained for the tuple log file. | Value specified in the query group property file#2 | Integer from 0 to 10 | Y |
10 | tpl.bufferCount | Specifies the number of tuple log buffers. | Value specified in the query group property file#2 | Integer from 3 to 512 | Y |
11 | tpl.bufferSize | Specifies the maximum size of a tuple log buffer (in kilobytes). | Value specified in the query group property file#2 | Integer from 1 to 2048000 | Y |
12 | tpl.fileCount | Specifies the maximum number of tuple log files. | Value specified in the query group property file#2 | Integer from 3 to 512 | Y |
13 | tpl.fileSize | Specifies the maximum size of a tuple log file (in megabytes). | Value specified in the query group property file#2 | Integer from 1 to 2048 | Y |
14 | tpl.outputLevel | Specifies the tuple log output level:
| Value specified in the query group property file#2 | Integer from 1 to 3 | Y |
15 | tpl.outputTrigger | Specifies the tuple log file output timing: BUFFER: Outputs tuple logs to a file when the buffer being used to collect the current tuple logs in the target stream becomes full. NONE: Does not output tuple logs to a file or perform buffering of tuple logs. | Value specified in the query group property file#2 | BUFFER or NONE | Y |
16 | tpl.useOverwrite | Specifies whether the buffer is to be overwritten in the event of a full tuple log buffer:
| Value specified in the query group property file#2 | true or false | Y |