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• MaxParallelScansPerFragment 

<img src='content_image/774534.jpg'>

It is possible to configure the maximum number of parallel scans ( TUP  scans and TUX  scans) allowed before they begin queuing for serial handling. You can increase this to take advantage of any unused CPU when performing large number of scans in parallel and improve their performance. 

• MaxReorgBuildBatchSize 

<img src='content_image/774535.jpg'>

Maximum scan batch size used for reorganization of table partitions. Increasing the value set for this parameter may speed up reorganization at the expense of greater impact to ongoing traffic. 

• MaxUIBuildBatchSize 

<img src='content_image/774536.jpg'>

Maximum scan batch size used for building unique keys. Increasing the value set for this parameter may speed up such builds at the expense of greater impact to ongoing traffic. 

## Memory Allocation 

MaxAllocate 

<img src='content_image/774537.jpg'>

This parameter was used in older versions of NDB Cluster, but has no effect in NDB 8.0. It is deprecated as of NDB 8.0.27, and subject to removal in a future release. 

