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Description: The property defines the maximum number of tasks that can be executed concurrently on Helix participant.

Values and behavior:

Case 1 - If the memory of the Analytical Store is manually set, the value of this property must be set to one-third of the total processing memory of the Analytical Store defined in GB.

Case 2 - If you use a lower instance type, change the HELIX_PARTICIPANT_MAX_CONCURRENT_TASKS value according to the table below.

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Worker Memory

Analytical Store memory is set to the Auto mode, you must change the value of the Analytical Store. While changing the value, refer to the table mentioned below.

8GB

HELIX_PARTICIPANT_MAX_CONCURRENT_TASKS

Worker Memory (in GB)

For Shared Query Engine

For Kubernetes Cluster

16GB

1

3

32GB

2

16GB6

64GB

4

11

32GB128GB

9

24

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Note

  • For AWS, m5.4xlarge is the default instance type for the worker nodes.

  • For Azure, Standard_D16s_v4 is the default Worker Instance Type.

  • For GCP, n2-standard-16 is the minimum configuration.

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