Mock Source

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The Mock Source can be used as a source database, primarily for performance testing scenarios.

Parameter Descriptions

• Initial Data Volume: The total number of records for full synchronization, range: 0 ~ 9223372036854775807.
• Incremental Interval + Incremental Interval Count: Controls the frequency of generating incremental data, indicating that Incremental Interval Count records are generated within the Incremental Interval time, range: 0 ~ 2147483647.
• Incremental Event Types: Specifies the types of events to generate. If all three are selected, it generates Insert Events first, followed by Update Events, and finally Delete Events, in this sequence until completion.
• Table Name + Field Definitions: Used to define the data model when acting as a source.

Model

Field Types

• string[($byte)][fixed]: String

  • $byte: Byte length (default: 64)
  • fixed: Indicates fixed length if this marker is added (default: variable length)

• number[($precision,$scale)]: Numeric

  • $precision: Length (range 1-40, default 4)
  • $scale: Scale (range 0-10, default 1)

• boolean: Boolean

• date: Date

• array: Array

• binary: Byte

• map: Key-value pair

• time: Time

• datetime: Date + Time

• now: Current time

• uuid: UUID

• serial[($begin,$step)]: Auto-increment

  • $begin: Start position (default: 1)
  • $step: Step size (default: 1)

• rnumber[($precision)]: Random number

  • $precision: Length (default: 4)

• rstring[($byte)]: Random string of specified length

  • $byte: Byte length (default: 64)

• rdatetime[($fraction)]: Random date with specified precision

  • $fraction: Time precision (default: 0, range 0-9)

• rlongstring[($byte)]: Random long string of specified length

  • $byte: Byte length (default: 1000)

• rlongbinary[($byte)]: Random binary of specified length

  • $byte: Byte length (default: 1000)

Field Default Values

Default values used when generating data. If not set, data will be null.

Limitations

When mode='ConnHeartbeat', no other parameters need to be configured:

• No data for full synchronization

• Fixed data model:

  _tapdata_heartbeat_table=[
    { "type": "string(64)", "pri": true, "name": "id", "def": "$connId" },
    { "type": "now", "pri": false, "name": "ts" }
  ]

• Fixed frequency: 1 record/1000ms

• Only generates update events