isolate.py: right command is 'archive', not 'hashtable'.

scripts/master/factory/swarm_factory.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Utility class to build the Swarm master BuildFactory's.
 
 Based on chromium_factory.py and adds chromium-on-swarm-specific steps.
 
 Common usage:
 - For a split builder&tester configuration, use:
@@ skipping 93 matching lines @@
 
     Caller must not reuse factory_properties since it is modified in-place.
     """
     valid_tests = set(s.test_name for s in SWARM_TESTS)
     assert not (set(tests) - set(valid_tests))
     target = 'Release'
 
     factory_properties.setdefault('gclient_env', {})
     factory_properties['gclient_env'].setdefault('GYP_DEFINES', '')
     factory_properties['gclient_env']['GYP_DEFINES'] += (
-        ' test_isolation_mode=hashtable test_isolation_outdir=' +
+        ' test_isolation_mode=archive test_isolation_outdir=' +
         isolate_server)
 
     # Do not pass the tests to the ChromiumFactory, they'll be processed below.
     f = self.ChromiumFactory(target=target,
                              options=options,
                              factory_properties=factory_properties)
 
     swarm_command_obj = swarm_commands.SwarmCommands(
         f,
         target,
@@ skipping 46 matching lines @@
 
     # Reorder the tests by the order specified in SWARM_TESTS. E.g. the slower
     # tests are retrieved last.
     for swarm_test in SWARM_TESTS:
       if swarm_test.test_name in tests:
         tests.remove(swarm_test.test_name)
         swarm_command_obj.AddIsolateTest(swarm_test.test_name)
 
     assert not tests
     return f