1 Mnesia Release Notes
This document describes the changes made to the Mnesia system
from version to version. The intention of this document is to
list all incompatibilities as well as all enhancements and
bugfixes for every release of Mnesia. Each release of Mnesia
thus constitutes one section in this document. The title of each
section is the version number of Mnesia.
1.1 Mnesia 4.2.1
1.1.1 Fixed Bugs and Malfunctions
-
Reading bad backup files failed completly, now it just
ignores the bad parts.
Own Id: OTP-5289 Aux Id: seq9650
-
Disk tables could be loaded in wrong order at startup,
changes made when a node was down could be missed.
Own Id: OTP-5300 Aux Id: seq9688
-
A call to mnesia:add_table_copy could hang if the node
which the table was copied from crashed.
Own Id: OTP-5328
-
Mnesia could crash during the start phase if a mnesia
table was deleted by another node.
Own Id: OTP-5358 Aux Id: seq9705 EABln20139
1.1.2 Improvements and New Features
-
Introduced a new env parameter
pid_sort_order
which should be set to r9b_plain
on non unpatched
R9B systems to be able to use mnesia on mixed systems
with unpatched R9B nodes. This is a workaround for a
specific upgrade problem when mixing certain emulators
versions so it should not be used unless needed.
Own Id: OTP-5347 Aux Id: Seq9712
1.2 Mnesia 4.2
1.2.1 Improvements and new features
-
New functions mnesia:select/4, mnesia:select/1 and mnesia:table/[1|2] are implemented.
The new
mnesia:select
functions returns a limited number of results
from each invocation. The mnesia:table
functions makes
it possible for QLC to operate on mnesia tables.
1.2.2 Fixed Bugs and malfunctions
None
1.2.3 Incompatibilities
None
1.2.4 Known bugs and problems
None.
For information about older versions see
release notes
history.
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