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The disk quota functionality is based on "best effort" principle. It means that broker cannot guarantee that disk space limit will not be exceeded. If several concurrent transactions are started before the limit is reached then all of them will be committed into disk even when disk quota is exceeded.

Broker Log Messages for quota flow control

There are 2 new Broker log messages that may occur if flow control through disk quota limits is enabled.
When virtual host is blocked due to exceeding of the disk quota limit the following message appears in the broker log

[vh(/test)/ms(BDBMessageStore)] MST-1008 : Store overfull, flow control will be enforced

When virtual host is unblocked after cleaning the disk space the following message appears in the broker log

[vh(/test)/ms(BDBMessageStore)] MST-1009 : Store overfull condition cleared

Client impact and configuration

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