Exposing the canonicalization code in the luafilter allows it to be used
on the Lua side of things. This should enable some pretty cool stuff to be
done with it.
Now it is possible to control the soft and hard ttl of the
cache on a session basis. That is, it is possible to use
different TTLs for different SELECTs.
As the TTL is checked at lookup time, it need not be hardwired
when the storage instance is created. With this changed it is
possible to introduce @maxscale.cache.(soft|hard)_ttl user
variables using which a client can control what TTL should be
applied for a particular kind of data, which is requested by
MXS-1475.
In case the entry in the cache can not be used because the hard
TTL has kicked in, we fetch the data and update the cache
irrespected of the value if @maxscale.cache.populate. That way
an entry that once was put in the cache, will remain in the cache
(as long as there is space).
The earlier @maxscale.cache.enabled has now been replaced with
@maxscale.cache.populate and @maxscale.cache.use that provide
for more flexibility.
With the former it is possible to control in what circumstances
the cache is populated and with the latter one when it is used.
Together they can be used for having a completely client driven
caching.
With 'enabled' it can be specified whether the cache should initially
be enabled or disabled. Useful as it is now possible to enable/disable
the cache dynamically.
A linefeed is whitespace, so given the rules
"\n"+ return '\n'
{SPACE} ;
a line consisting of space followed by a linefeed, will be matched
as space and not as a linefeed and hence will cause the parser to
barf.
If there are several 'users' lines in a rule file, for a particular
user, the rules each matching line will be checked independently
until a rule match is found.
That is, the rules of each 'users' line are treated in an OR-fashion
with respect to each other.
As you can create regular expressions that have a fixed length,
e.g. "....$", it makes perfect sense to replace using 'value' if
the length of the string matches exactly.
The config parameter 'newline_replacement' (defaults to 1 space " ") now defines
what to write to the log file when the sql-query has a newline sequence (\n, \r or
\r\n). If 'newline_replacement' is the empty string "", no replacing is done and
newlines are printed to file.
Also, adds the config parameter 'separator', which defines the string
printed between elements. Default value is ",".
Make all modules lowercase and make module loading case
insensitive. Further, make command invocation case insensitive,
as far as the module name is conserned.
When the unit tests were run without installing the libraries in their
final locations, the loading of the modules would fail. Using locations
relative to the build directory allows unit testing without having to
install the libraries.
MXS-701: RAND_EVENT nows has the two seeds filled with original packet
size and original event type:
#700101 1:00:00 server id 0 end_log_pos 0 CRC32 0x858bdfd5 Rand
SET @@RAND_SEED1=62, @@RAND_SEED2=19/*!*/;
