DBD::Mysql provides a mysql_auto_reconnect flag. Using it avoids
the time required to do a $dbh->ping().
Benchmarks:
use Modern::Perl;
use C4::Context;
for ( 1 .. 1000 ) {
$dbh = C4::Context->dbh;
}
* without this patch on a local DB:
perl t.pl 0,49s user 0,02s system 98% cpu 0,525 total
* without this patch on a remote DB:
perl t.pl 0,52s user 0,05s system 1% cpu 37,358 total
* with this patch on a local DB:
perl t.pl 0,46s user 0,04s system 99% cpu 0,509 total
* with this patch on a remote DB:
perl t.pl 0,49s user 0,02s system 56% cpu 0,892 total
Testing the auto reconnect:
use Modern::Perl;
use C4::Context;
my $ping = $dbh->ping;
say $ping;
$dbh->disconnect;
$ping = $dbh->ping;
say $ping;
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Comment: Real improvement. No koha-qa errors
prove t/db_dependent/Circulation_issuingrules.t produces no error
prove t/db_dependent/Context.t produces no error
Test
1) dumped Koha DB, load it on a non-local server
2) run sample script whit and without patch, local and remote
use Modern::Perl;
use C4::Context;
for ( 1 .. 100000 ) {
my $dbh = C4::Context->dbh;
}
Main difference I note is with remote server
a) without patch
real 0m16.357s
user 0m2.592s
sys 0m2.132s
b) with patch
real 0m0.259s
user 0m0.240s
sys 0m0.012s
I think this could be good for DBs placed on
remote servers
Bug 10611: add a "new" parameter to C4::Context->dbh
When dbh->disconnect is called and the mysql_auto_reconnect flag is set,
the dbh is not recreated: the old one is used.
Adding a new flag, we can now force the C4::Context->dbh method to
return a new dbh.
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Bug 10611: Followup: remove useless calls to dbh->disconnect
These 3 calls to disconnect are done at the end of the script, they are
useless.
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Bug 10925 removes the last call to C4::Utils.
The module becomes useless and can be deleted.
Verify that t/db_dependent/Context.t still successfully passes.
git grep hashdump
git grep maxwidth
Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Passes koha-qa.pl, no subs from the module are used anywhere
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Check whether a given update should be run when passed the proposed
version number. The update will always be run if the proposed version
is greater than the current database version and less than or equal to
the version returned by C4::Context->final_linear_version (initially set
to be equal to the version in kohaversion.pl). The update is also run if
the version contains XXX, though this behavior will be changed following
the adoption of non-linear updates as implemented in bug 7167.
To test:
1) Make sure that the first example database update added by this patch
in installer/data/mysql/updatedatabase.pl has a version number one
greater than the version of Koha you have installed.
2) Set the Version syspref back one version behind your current version.
3) Navigate to the main page of the staff client, and log in to the
installer.
4) Confirm that the update page claims to have rerun the previous update
and has displayed the log message:
"Upgrade to 3.11.00.XXX done (Bug 9191: You should see this)"
but not the log message:
"Upgrade to [version number] done (Bug 9191: You shouldn't see this)"
Note: the sample database revisions will be removed by the RM before
this patch is pushed to master.
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
works great
Signed-off-by: Elliott Davis <elliott@test.bywatersolutions.com>
Works as expected. Test plan is great. Code looks to be adherent to standards.
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
Because C4::Context uses an in-memory hash for caching sysprefs,
changing a syspref under a multi-threaded persistent environment
requires a server restart. This patch makes it possible disable
the syspref cache.
To test:
1) If you are using a multi-threaded persistent server (Starman, etc.),
change a syspref and note that the effects of the syspref change may
or may not be visible on any given request before applying this patch.
You will need to choose a syspref with obvious effects that can be
seen by simply refreshing the page. I recommend enabling or
disabling additional languages in the OPAC, since you can refresh the
page a dozen times and reasonably expect to see the new behavior you
set only 1/n of the time.
2) Apply patch.
3) Add "C4::Context->disable_syspref_cache();" to your koha.psgi file
4) Repeat step 1, noting that you never see the stale behavior.
5) Run test at t/db_dependent/Context.t.
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
All tests passed.
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
Moved test cases that depend on the DBMS and having
an initialized Koha database to a subdirectory
of t so that they will not be swept up into
the default 'make test'. Goal is to have
these DB-dependent tests runnable either via
a special make target or perhaps from the
web installer.
Signed-off-by: Chris Cormack <crc@liblime.com>
Signed-off-by: Joshua Ferraro <jmf@liblime.com>
