Erlang/OTP R11B has been released

Ulf Wiger (AL/EAB) ulf.wiger@REDACTED
Thu May 18 11:40:54 CEST 2006

Sanjaya Vitharana wrote:
> 2.)
> What happend to the rdbms which hope to release with OTP R11?
> Thanks,
> Sanjaya Vitharana

They were excluded primarily due to lack of time - not just for testing,
but also for figuring out whether they are actually the *right* thing to

Actual "field testing" of rdbms got started a bit too late to flush out
the bugs before R11 (I have a very helpful beta tester now).

Finally, the rdbms patches can be divided into different categories:

1) reasonably straightforward: the hooks into the transaction handling
2) more difficult to evaluate: the table loading hooks
3) perhaps questionable: the hooks for defining new table types.

Re. (2), it's important to understand whether the proposed changes would
interfere with ways of making normal table loading and synchronization

Re. (3), one drawback was that crashes in the "external_copies"
callbacks would cause mnesia to dump core. Perhaps this is unavoidable -
desirable even? Another thing to look into is of course whether that
particular interface is well suited to e.g. BDB. More experimentation is
needed. It should be noted that external_copies is labeled as
"experimental" even in rdbms.

Ulf W

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