python-noob - which container is appropriate for later exporting into mySql + matplotlib ?

[Roy Smith]

In article <mailman.551.1365861813.3114.python-list at python.org>,
 Chris Angelico <rosuav at gmail.com> wrote:

> 2) The database engine must employ some form of write-ahead log.
> [...]
> one way or another, there must be a way to detect half-done
> transactions.
> 
> 3) The operating system and filesystem must support a forced file
> synchronization (fsync/fdatasync), so the database engine can wait for
> the data to be written to disk.
> 
> 4) The underlying media (hard disk, SSD, USB stick, etc) must respond
> to the fsync call by actually writing the content to persistent
> storage before returning.

Some of the early Unix file systems were very fragile.  One of the 
(often under-appreciated) major advances in BSD (it was certainly in 
4.2, not sure how much earlier) was a new filesystem which was much more 
robust in the face of hardware failures and system crashes.  Prior to 
BSD, the on-disk data could be left in an inconsistent state if the 
system crashed at the wrong time.  In BSD, data was written to disk in 
such a way that every operation could either be backed out cleanly or 
had enough information to complete the transaction.