Mercurial > p > roundup > code
view roundup/scripts/roundup_demo.py @ 6610:db3f0ba75b4a
Change checkpoint_data and restore_connection_on_error to subtransaction
checkpoint_data and restore_connection_on_error used to commit() and
rollback() the db connection. This causes additional I/O and load.
Changed them to use 'SAVEPOINT name' and 'ROLLBACK TO name' to get a
faster method for handling errors within a tranaction.
One thing to note is that postgresql (unlike SQL std) doesn't
overwrite an older savepoint with he same name. It keeps all
savepoints but only rolls back to the newest one with a given name.
This could be a resource issue. I left a commented out release
statement in case somebody runs into an issue due to too many
savepoints. I expect it to slow down the import but....
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Sat, 29 Jan 2022 11:29:36 -0500 |
| parents | d09a1d6a3bd9 |
| children | 062a54eeb0a1 |
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#! /usr/bin/env python # # Copyright 2004 Richard Jones (richard@mechanicalcat.net) # DEFAULT_HOME = './demo' DEFAULT_TEMPLATE = 'classic' import sys # --- patch sys.path to make sure 'import roundup' finds correct version import os.path as osp thisdir = osp.dirname(osp.abspath(__file__)) rootdir = osp.dirname(osp.dirname(thisdir)) if (osp.exists(thisdir + '/__init__.py') and osp.exists(rootdir + '/roundup/__init__.py')): # the script is located inside roundup source code sys.path.insert(0, rootdir) # --/ from roundup import admin, configuration, demo, instance from roundup.i18n import _ from roundup.anypy.my_input import my_input from roundup import version_check def run(): home = DEFAULT_HOME template = DEFAULT_TEMPLATE nuke = sys.argv[-1] == 'nuke' # if there is no tracker in home, force nuke try: instance.open(home) except configuration.NoConfigError: nuke = 1 # if we are to create the tracker, prompt for home if nuke: if len(sys.argv) > 2: backend = sys.argv[-2] else: backend = 'anydbm' # FIXME: i'd like to have an option to abort the tracker creation # say, by entering a single dot. but i cannot think of # appropriate prompt for that. home = my_input( _('Enter directory path to create demo tracker [%s]: ') % home) if not home: home = DEFAULT_HOME templates = admin.AdminTool().listTemplates().keys() template = my_input( _('Enter tracker template to use (one of (%s)) [%s]: ') % (','.join(templates), template)) if not template: template = DEFAULT_TEMPLATE # install demo.install_demo(home, backend, admin.AdminTool().listTemplates()[template]['path']) # run demo.run_demo(home) if __name__ == '__main__': run() # vim: set et sts=4 sw=4 :
