Product Documentation

SQL Operations Guide

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SETENV TPE_MM_SWAPSIZE

LEGACY Option

Specifies the maximum size, in kilobytes, of the swap file the internal storage system uses when it writes to disk from the main memory cache.

Setting this value too small will result in error -16001:MM No data block for queries that require more swap space than is available. A maximum memory limit of 4TB is available.

Example

SETENV TPE_MM_SWAPSIZE=500000

Note: Prior to FairCom DB V9.3.41446 Build 110507, a limit of 2Gb existed. Values larger than this improperly "wrapped" around.

Important: The MM subsystem was replaced with a new architecture beginning with V10.3. Only enable the legacy MM subsystem on the advice of FairCom's engineering team.

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