Error Due To Signal Lost, Out Of Long Signal Memory; LongMessageBuffer

(Doc ID 1968742.1)

Last updated on MARCH 08, 2017

Applies to:

MySQL Cluster - Version 7.2 and later
Information in this document applies to any platform.


On : 7.2 version, Crashes

When attempting to run heavy loads,
the following error occurs.

Message: Signal lost, out of long signal memory, please increase LongMessageBuffer (Resource configuration error)

The issue can be reproduced at will with the following steps:
1. Set LongMessageBuffer to below 16M on 7.2 versions
2. Run a heavy load on the Cluster
3. Wait for the error to occur

The issue has the following business impact:
Due to this issue, users cannot run heavy loads without errors occurring.


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