[Twisted-Python] Re: [Xapian-discuss] Twisted + Xapian WriteableDatabase leaves db_lock file on exit.

[jarrod roberson]

Here is the relevant output

cassandra:~/projects/wc/wfs/trunk/python/indexd
>delve --version
delve - xapian-core 0.9.5
cassandra:~/projects/wc/wfs/trunk/python/indexd
>whack /index/wfs/
cassandra:~/projects/wc/wfs/trunk/python/indexd
>twistd -noy indexd.tac
2006/05/03 11:18 EDT [-] Log opened.
2006/05/03 11:18 EDT [-] twistd 2.2.0 (/usr/bin/python 2.4.1) starting up
2006/05/03 11:18 EDT [-] reactor class:
twisted.internet.selectreactor.SelectReactor
2006/05/03 11:18 EDT [-] Loading indexd.tac...
2006/05/03 11:18 EDT [-] Loaded.
2006/05/03 11:18 EDT [-] __builtin__.IndexerFactoryFromService starting on
9000
2006/05/03 11:18 EDT [-] Starting factory
<__builtin__.IndexerFactoryFromService instance at 0x5259e0>
2006/05/03 11:18 EDT [-] Start Xapian Index Service
^C2006/05/03 11:19 EDT [-] Received SIGINT, shutting down.
2006/05/03 11:19 EDT [-] Stopping Xapian Indexer Service
2006/05/03 11:19 EDT [-] (Port 9000 Closed)
2006/05/03 11:19 EDT [-] Stopping factory
<__builtin__.IndexerFactoryFromService instance at 0x5259e0>
2006/05/03 11:19 EDT [-] Main loop terminated.
2006/05/03 11:19 EDT [-] Server Shut Down.
cassandra:~/projects/wc/wfs/trunk/python/indexd
>twistd -noy indexd.tac
2006/05/03 11:19 EDT [-] Log opened.
2006/05/03 11:19 EDT [-] twistd 2.2.0 (/usr/bin/python 2.4.1) starting up
2006/05/03 11:19 EDT [-] reactor class:
twisted.internet.selectreactor.SelectReactor
2006/05/03 11:19 EDT [-] Loading indexd.tac...
2006/05/03 11:19 EDT [-] Traceback (most recent call last):
2006/05/03 11:19 EDT [-]   File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/application/app.py",
line 159, in getApplication
2006/05/03 11:19 EDT [-]     application = service.loadApplication(filename,
style, passphrase)
2006/05/03 11:19 EDT [-]   File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/application/service.py",
line 301, in loadApplication
2006/05/03 11:19 EDT [-]     application = sob.loadValueFromFile(filename,
'application', passphrase)
2006/05/03 11:19 EDT [-]   File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/persisted/sob.py",
line 208, in loadValueFromFile
2006/05/03 11:19 EDT [-]     exec fileObj in d, d
2006/05/03 11:19 EDT [-]   File "indexd.tac", line 157, in ?
2006/05/03 11:19 EDT [-]     i = XapianIndexerService('/wfs/',
'/index/wfs/')
2006/05/03 11:19 EDT [-]   File "indexd.tac", line 99, in __init__
2006/05/03 11:19 EDT [-]     self.db = xapian.WritableDatabase(indexRoot,
xapian.DB_CREATE_OR_OPEN)
2006/05/03 11:19 EDT [-]   File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/xapian.py",
line 433, in __init__
2006/05/03 11:19 EDT [-]
_xapian.WritableDatabase_swiginit(self,_xapian.new_WritableDatabase(*args))
2006/05/03 11:19 EDT [-] IOError: DatabaseLockError: Unable to acquire
database write lock /index/wfs//db_lock
2006/05/03 11:19 EDT [-] Failed to load application: DatabaseLockError:
Unable to acquire database write lock /index/wfs//db_lock
2006/05/03 11:19 EDT [-] Traceback (most recent call last):
          File "/usr/bin/twistd", line 25, in ?
            run()
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/scripts/twistd.py",
line 205, in run
            app.run(runApp, ServerOptions)
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/application/app.py",
line 278, in run
            runApp(config)
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/scripts/twistd.py",
line 195, in runApp
            application = app.getApplication(config, passphrase)
        --- <exception caught here> ---
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/application/app.py",
line 159, in getApplication
            application = service.loadApplication(filename, style,
passphrase)
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/application/service.py",
line 301, in loadApplication
            application = sob.loadValueFromFile(filename, 'application',
passphrase)
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/twisted/persisted/sob.py",
line 208, in loadValueFromFile
            exec fileObj in d, d
          File "indexd.tac", line 157, in ?
            i = XapianIndexerService('/wfs/', '/index/wfs/')
          File "indexd.tac", line 99, in __init__
            self.db = xapian.WritableDatabase(indexRoot,
xapian.DB_CREATE_OR_OPEN)
          File
"/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/xapian.py",
line 433, in __init__

_xapian.WritableDatabase_swiginit(self,_xapian.new_WritableDatabase(*args))
        exceptions.IOError: DatabaseLockError: Unable to acquire database
write lock /index/wfs//db_lock


Failed to load application: DatabaseLockError: Unable to acquire database
write lock /index/wfs//db_lock
2006/05/03 11:19 EDT [-]
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