Using Neo4j as the Persistence Provider
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As of version 8.4.0 of ThingWorx platform, Neo4j and Neo4j+DSE are no longer supported.
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If you are using Neo4j as the default persistence provider (ThingworxPersistenceProvider), you can edit the following stream and value stream queue Configuration settings, which will apply to all streams and value streams. You cannot change these settings for a specific stream or value stream.
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Stream Processor Settings
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Base Type
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Default
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Notes
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Max Queue Size
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Number
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250000
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Maximum number of stream entries to queue.Once the specified value is reached, the following entries will be rejected.
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Max Wait Time Before Flushing Stream Buffer (millisec)
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Number
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500
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Number of milliseconds the system waits before flushing the stream buffer
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Max no. of Items Before Flushing Stream Buffer
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Number
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1000
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Maximum number of items to accumulate before flushing the stream buffer
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Max no. of Stream Writes in Process Block
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Number
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1000
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Maximum number of stream writes to process in one block
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Buffer Status Scan Rate (millisec)
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Number
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5
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The buffer status is checked at the specified rate value in milliseconds.
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Value Stream Processor Settings
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Base Type
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Default
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Notes
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|---|---|---|---|
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Max Queue Size
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Number
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500000
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Maximum number of value stream entries to queue.Once the specified value is reached, the following entries will be rejected.
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Max Wait Time Before Flushing Value Stream Buffer (millisec)
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Number
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500
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Number of milliseconds the system waits before flushing the value stream buffer
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Max no. of Items Before Flushing Value Buffer
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Number
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1000
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Maximum number of items to accumulate before flushing the value stream buffer
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Max no. of Value Stream Writes in Process Block
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Number
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1000
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Maximum number of value stream writes to process in one block
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Buffer Status Scan Rate (millisec)
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Number
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5
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The buffer status is checked at the specified rate value in milliseconds.
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