Python Operationalerror Disk I/o Error
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Sqlite Disk Io Error
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Sqlite3.operationalerror: Unable To Open Database File
uses sqlite3 as backend. I have a function which does a db write operation. Something like the one given below. def task_run(): db_write() This works fine in normal case. I called the same function in Process module and it thrown OperationalError: disk I/O error p = Process(target=self.task_run, args=()) p.start() p.join() Error: Traceback (most recent call last): File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap self.run() File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/process.py", line 114, in run self._target(*self._args, **self._kwargs) File "...runner.py", line 277, in task_runner getattr(main, "first_function")("some random") File "...modules/test/main.py", line 13, in first_function self.__event__('information',"Testing plugin profiles") File "...rc_plugin.py", line 28, in __event__ event = Event.objects.post_event(self.job_id, self.task_id, type, message) File "...managers.py", line 39, in post_event if len(dup_events)>0: File "...lib/python2.7/site-packages/django/db/models/query.py", line 144, in __len__ self._fetch_all() File "...lib/python2.7/site-packages/django/db/models/query.py", line 965, in _fetch_all self._result_cache = list(self.iterator()) File "...lib/python2.7/site-packages/django/db/models/query.py", line 238, in iterator results = compiler.execute_sql() File "...lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 840, in execute_sql cursor.execute(sql, params) File "...lib/python2.7/si
this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ sqlite3.OperationalError: disk I/O error Hello, I have a piece of code that works fine on my desktop in cygwin, but fails sqlite3 python on our server. I am creating a simple database using the sqlite3 module in python. I open a connection con=sqlite3.connect("./file.db") #works cur=con.cursor() #works cur.execute("""create table test(name, age)""") #fails on server, works on desktop the result: An empty file.db is created, and I get "sqlite3.OperationalError: disk I/O error" on the execute command. If I use ":memory:", the command works fine. For some reason, it is having trouble writing to the http://stackoverflow.com/questions/35534701/operationalerror-disk-i-o-error-when-using-process disk. The disk is actually some networked file system; not sure if that matters. Thanks, Kerry _______________________________________________ sqlite-users mailing list [hidden email] http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users Roger Binns Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: sqlite3.OperationalError: disk I/O error -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/03/2011 03:05 PM, Dungan, Kerry wrote: > the result: > An empty file.db is http://sqlite.1065341.n5.nabble.com/sqlite3-OperationalError-disk-I-O-error-td18568.html created, and I get "sqlite3.OperationalError: disk I/O error" on the execute command. There could be any number of reasons. The message is coming from the SQLite library and it is doing that because of something that happened with the operating system. My best guess is that the journal can't be created for some reason. The server may have extra security rules, quotas etc causing this. The easiest way to find the problem is to run the program under strace which will show every system call made and the response. Roger -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk6KO5EACgkQmOOfHg372QT59gCgsGUnfKkN0XvZoEB6ULgV1tQL 1YoAn3GNFXbOwyYQpJ6/VAO0rErdGWZA =6WFN -----END PGP SIGNATURE----- _______________________________________________ sqlite-users mailing list [hidden email] http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users Dungan, Kerry Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: sqlite3.OperationalError: disk I/O error Thanks for the advice. I ran my python script using strace. It is failing under the fcntl() command. strace says that (Function not implemented). I did a search on google and found the following under the sqlite3 FAQ: SQLite uses reader/writer locks to control access to the database...But use caution: this locking mechanism might not work correctly if the database file is kept on an NFS filesystem. This is b
a GitHub account Sign in Create a gist now Instantly share code, notes, and snippets. Star 1 Fork 0 17twenty/fixSQL.py https://gist.github.com/17twenty/8831301 Created Feb 5, 2014 Embed What would you like to do? http://www.errorcyclopedia.com/post/python-sqlite3-operationalerror-disk-io-error-24098.html Embed Embed this gist in your website. Embed Share Copy sharable URL for this gist. Share Clone via HTTPS Clone with Git or checkout with SVN using the repository's web address. HTTPS Learn more about clone URLs Download ZIP Code Revisions 1 Stars 1 disk i How to fix problems with sqlite3.OperationalError: disk I/O error in Python Raw fixSQL.py """ You'll most likely notice you have a something.db-journal file - that was my first sign! I ended up writing a class to abstract stuff away but the key line is, when creating the table, execute the pragma line: PRAGMA journal_mode = disk i/o error OFF http://www.stevemcarthur.co.uk/blog/post/some-kind-of-disk-io-error-occurred-sqlite/ and for more information see here http://www.sqlite.org/pragma.html I found this was due to weird permissions with the default DELETE option. TRUNCATE works as well as OFF """ class Notes(): def __init__(self): pass def createDatabase(self): """ The goal here is to ensure we have a sane/working default DB """ conn = self.__openAndGetConnection() cur = conn.cursor() # Drop it if it already exists cur.execute('''PRAGMA journal_mode = OFF''') cur.execute("DROP TABLE IF EXISTS notes") # Make a new shiny one cur.execute('''CREATE TABLE IF NOT EXISTS notes (id INTEGER PRIMARY KEY, hits INT, title TEXT, author TEXT, note TEXT, creation TIMESTAMP, expiration TIMESTAMP)''') tempStamp = datetime.datetime.now() self.addNote("This is the first note in the database", expiration=tempStamp); # Commit it all conn.commit() self.__close(conn) def addNote(self, note, title="Untitled Masterpiece", expiration=None, author=u"Anonymous"): if not expiration: # Limit to 1 hour expiration = datetime.datetime.now() + (datetime.timedelta(hours=1)) # Make with the unicode note = unicode(note) title = unicode(title) author = unicode(author) # Open it up and slap it in conn = self.__openAndGetConnection()
.once. SQLite - sqlite3.OperationalError: disk I/O error - Nabble -gt; the result: -gt; An empty file.db is created, and I get sqlite3 sqlite3.OperationalError: disk I/O error sqlite3 module that comes with Python Read more sqlite3.OperationalError: disk I/O error Google Grupper sqlite3.OperationalError: disk I/O error: Roger Binns: 15.02.11 09:30 python-sqlite sqlite3.OperationalError: disk I/O error: David Hughes: 16.02.11 08:59: Read more How to fix problems with sqlite3.OperationalError: disk I/O How to fix problems with sqlite3.OperationalError: disk I/O How to fix problems with sqlite3.OperationalError: disk I/O error in Python (NULL Read more sqlite: disk I/O error when using Sqlite3 and SqlAlchemy in OperationalError: disk I/O error Python SQLite3 generating random number per row; Open a sqlite3 database from an io.BytesIO stream? Read more sqlite: Error: disk I/O error on a newly created database Error: disk I/O error on a newly created database but only if not null; C SQLite syntax error Sqlite3 Python 2.7 sqlite3.OperationalError syntax Read more Command Line Shell For SQLite then save that database into a disk file using the .save command: STRING in place of NULL values .once sqlite3 command line interface is in a Read more Related articles Command line android debugging How to debug a site with eclipse Interactive Graphical Python Debugger Related errors Error loading c windows system32 nvsvc dll Error python headers not found Could not migrate host advanced warfare Error 15 file not found xp Wbfs manager error loading iso Fatal error unable to bind to udp socket Error highlighting in sublime text The file txtsetup.oem could not be found windows server 2003 T box error code 0602 Ogre could not load dynamic library Related social networks comments Por ipentest RT halr9000: pwahlmueller Flancy is a web server :) read a bit about Flask which is the goal (but its for python) https:tcoWHEihqCa Por weypavilion RT NWAFightNation: NWA returns to weypavilion 13th Dec! Former TNA & NXT stars on the line up!Tix: https:tcoRyoTaTvEtp https:t Por PretzelSoftball RT ConnArtist99: Tickets go on sale at 12:01 am this Monday for FHS Beauty and the Beast Purchase them at https:tcoffx3mnLeGi https: Por P3Geek RT skryking: Receive your free dev stickers, worldwide! notifuse js ruby python java php golang reactjs nodejs https:tcoanpgB Por java_ninja RT AndroidGuys: Google improved battery life in Android 60 and youre going to love it https:tcoGJ09aL68n7 https:tcoV2t6yCIJuZ Por tottenhmnews Tottenham Hotspur vs Aston Villa: Team news, kick-off time, probable line-ups, odds and stats https