DBERROR db4: Logging region out of memory; you may need to increase its size

[Yann Rouillard]

Hi,

I ran into the following error with 2.2.12.

DBERROR db4: Logging region out of memory; you may need to increase its
size
lmtp[2589]: [ID 729713 local6.error] DBERROR:
opening /var/lib/cyrus/deliver.db: Not enough space
lmtp[2589]: [ID 729713 local6.error] DBERROR:
opening /var/lib/cyrus/deliver.db: cyrusdb error
lmtp[2589]: [ID 157947 local6.error] FATAL: lmtpd: unable to init
duplicate delivery database

The problem happened after an abnormal high cpu and memory usage (I
don't know yet if cyrus was responsible for this but I don't think so).
What is exactly the reason of this error ?

I would like to prevent this to happen even if with cpu and memory
problem. Is this possible ?

Yann