Configuration properties for Presto (C++) - worker nodes
You can customize the worker configuration properties through an API for Presto (C++).
watsonx.data on Red Hat® OpenShift®
| Property name | Type | Validation added |
|---|---|---|
task.max-drivers-per-task |
Integer | Limit {1, 100} |
system-memory-gb |
Integer | Limit {1, 1000} |
query-memory-gb |
Integer | Limit {1, 10000} |
query.max-memory-per-node |
Integer | Limit {1, 1000} |
async-data-cache-enabled |
Boolean | True or False |
query-reserved-memory-gb |
Integer | Limit {1, 1000} |
system-mem-limit-gb |
Integer | Limit {1, 1e13} |
system-mem-shrink-gb |
Integer | Limit {1, 1e13} |
system-mem-pushback-enabled |
Boolean | True or False |
Note: If the
system-mem-pushback-enabled property is set to true,
the default limit of system-mem-limit-gb will not be enough. It is recommended to
set the value of system-mem-limit-gb same as
system-memory-gb.Properties to be customized under support guidance
Though most of the properties can be customized by the watsonx.data administrators, the following properties
must be customized under the guidance of the watsonx.data support team.
| Property name | Type | Validation added |
|---|---|---|
runtime-metrics-collection-enabled |
Boolean | True or False |
system-mem-pushback-enabled |
Boolean | True or False |
system-mem-limit-gb |
Integer | Limit{1, 100000} |
system-mem-shrink-gb |
Integer | Limit{1, 100000} |