Allow to share values between worker processes

bin/oioswift-proxy-server

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# Copyright (c) 2010-2012 OpenStack Foundation
+# Copyright (c) 2019 OpenIO SAS
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import sys
+from optparse import OptionParser
+from swift.common.utils import parse_options
+from swift.common import wsgi
+from oioswift.server import global_conf_callback
+
+
+GLOBAL_CONF = None
+
+
+def global_conf_callback_wrapper(preloaded_app_conf, global_conf):
+    global GLOBAL_CONF
+    global_conf_callback(preloaded_app_conf, global_conf)
+    GLOBAL_CONF = global_conf
+
+
+orig_run_server = wsgi.run_server
+
+
+def run_server_wrapper(conf, logger, sock, global_conf=None):
+    if global_conf is None and GLOBAL_CONF is not None:
+        global_conf = {k: v for k, v in GLOBAL_CONF.items()
+                       if k.startswith('oio')}
+    return orig_run_server(conf, logger, sock, global_conf)
+
+
+wsgi.run_server = run_server_wrapper
+
+
+def run_objgraph(types):
+    import objgraph
+    import os
+    import random
+    objgraph.show_most_common_types(limit=50, shortnames=False)
+    for type_ in types:
+        count = objgraph.count(type_)
+        print '%s objects: %d' % (type_, count)
+        if count:
+            objgraph.show_backrefs(
+                random.choice(objgraph.by_type(type_)), max_depth=20,
+                filename='/tmp/backrefs_%s_%d.dot' % (type_, os.getpid()))
+
+
+if __name__ == '__main__':
+    parser = OptionParser(usage="%prog CONFIG [options]")
+    parser.add_option('--objgraph', action='store_true',
+                      help=('Run objgraph, show most common '
+                            'types before exiting'))
+    parser.add_option('--show-backrefs', action='append', default=list(),
+                      help=('Draw backreference graph for one randomly '
+                            'chosen object of that type. Can be used '
+                            'multiple times.'))
+    conf_file, options = parse_options(parser)
+    res = wsgi.run_wsgi(conf_file, 'proxy-server',
+                        global_conf_callback=global_conf_callback_wrapper,
+                        **options)
+    if options.get('objgraph'):
+        run_objgraph(options.get('show_backrefs', list()))
+    sys.exit(res)

runserver.py

@@ -0,0 +1 @@
+bin/oioswift-proxy-server

setup.py

@@ -42,5 +42,8 @@
             'tempauth=oioswift.common.middleware.tempauth:filter_factory',
         ],
     },
+    scripts=[
+        'bin/oioswift-proxy-server',
+    ],
     install_requires=['swift>=2.13.0', 'oio>=4.2.0']
 )