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NDB Backups Are 20x Longer on Multithreaded Cluster (ndmbtd) Compared to Single Threaded Cluster (ndbd) (Doc ID 2993672.1)

Last updated on DECEMBER 17, 2023

Applies to:

MySQL NDB Cluster - Version 8.0 and later
Information in this document applies to any platform.

Symptoms

NDB Backup takes around 16 minutes for single-threaded software, but for ndbmtd, it takes around 6.5 hours for the same cluster data.

For example:

 

Changes

Moved from single threaded ndbd to multithreaded ndmbtd. Added the options:

MaxNoOfExecutionThreads = 48
NoOfFragmentLogParts = 24

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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