Python Sqlite Disk I/o Error
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Sqlite Disk Io Error
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Sqliteexception Disk I/o Error
about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question sqlite3.operationalerror: disk i/o error ipython and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top meteor error: sqlite_ioerr: disk i/o error disk I/O error in SQLite up vote 2 down vote favorite 1 What are the possible things that would trigger the "disk I/O error"? I've been having this problem and I couldn't find a solution. I have a SQLite3 database, and I'm trying to insert data from a file that contains SQL inserts. Sample data in the file: insert into files (filesize, filedate, md5, fullpath, origin) values (5795096,1370159412, "e846355215bbb9bf5f30102a49304ef1", "SDs/16G-1/DSC00144.JPG", "SDs"); insert into files (filesize, filedate, md5, fullpath, origin) values (5435597,1370159422, "1a7bcf3a4aaee3e8fdb304ab995ff80f", "SDs/16G-1/DSC00145.JPG", "SDs"); insert into files (filesize, filedate, md5, fullpath, origin) values (5121224,1370159432, "16d28e83599c731657a6cd7ff97a4903", "SDs/16G-1/DSC00146.JPG", "SDs"); I tried inserting that in the db file with the following command: $ sqlite3 allfiles.db < insert.sql See below the error that I get: Error: near line 27: disk I/O error Error: near line 28: disk I/O error Error: near line 34: disk I/O error Error: near line 39: disk I/O error Error: near line 47: dis
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Some Kind Of Disk I/o Error Occurred
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programmers, just like you, helping each other. Join them; it only takes a minute: Sign up disk I/O error when using Sqlite3 and SqlAlchemy in docker up vote 0 down vote favorite I have a flask app http://dba.stackexchange.com/questions/44156/disk-i-o-error-in-sqlite that creates a sqlite db to load fixtures for tests. When I run pytest within osx, there are no issues. However, when I set 'PRAGMA journal_mode=WAL' within a ubuntu 14.04 docker container, I get this: disk I/O error Traceback (most recent call last): File "/tmp/my_app/util/sqlalchemy_helpers.py", line 23, in pragma_journalmode_wal cursor.execute('PRAGMA journal_mode=WAL') OperationalError: disk I/O error The sqlite db file is written to a folder within tmp that is dynamically created using python's "tempfile.mkdtemp" function. http://stackoverflow.com/questions/32532851/disk-i-o-error-when-using-sqlite3-and-sqlalchemy-in-docker Even though the tests run as root (because docker), I still made sure the folder has full read/write/execute permissions. I verified that there is plenty of space left on /tmp. I have test code that creates, modifies, and deletes a file in the database folder, and it passes successfully. I cannot seem to find a way to get an error code or better explanation as to what failed. Any ideas how I can better debug the issue? Could there be an issue with the docker container? python sqlite sqlite3 sqlalchemy docker share|improve this question asked Sep 11 '15 at 22:10 Jim Cortez 151214 1 What happens if you execute anything other than PRAGMA journal_mode=WAL? There are whole bunch of requirements that need to be satisfied for WAL, I suspect you may be running afoul of one. –msw Sep 12 '15 at 3:21 Thanks for responding! If I remove the WAL mode (which works on OSX), then it fails on the next SQL query. It seems to simply fail on the first query of any sort. I have also tried "off" and "truncate" journal modes, they all yield the same error. –Jim Cortez Sep 14 '15 at 20:27 I wasn't clear in my request for clarification: what happens if there is no PRAGMA at all
gone offline. I checked the error log, which is filled nonstop with lines like this: 2013-06-24 17:59:00,764 :Traceback (most recent call last): 2013-06-24 17:59:00,764 :sqlite3.OperationalError: unable https://www.pythonanywhere.com/forums/topic/723/ to open database file 2013-06-24 17:59:01,813 :Traceback (most recent call last): 2013-06-24 17:59:01,814 http://www.stevemcarthur.co.uk/blog/post/some-kind-of-disk-io-error-occurred-sqlite :sqlite3.OperationalError: unable to open database file Digging back further in the error log, I found this: OperationalError: disk I/O error 2013-06-24 12:09:15,749 :IOError: write error So, what happened? Did my app suddenly lose write permissions? zauberparacelsus | 12 posts | June 24, 2013, 6:02 p.m. | permalink Do you know the name of your sqlite disk i file? Could you check it still exists and hasn't been deleted. If it's still there, could you check the permissions. Also, could you fire up a python console and try opening the database directly and see if that works. Thanks rcs1000 | 292 posts | June 25, 2013, 7:05 a.m. | permalink Good advice from @rcs1000. Will follow up by email, but here is some general advice, in disk i/o error case anyone else has a similar problem: check you haven't maxed out your quota make sure you specify an absolute path to your database -- you can never be sure what the working directory for a web app is. try reloading your web app, as rcs1000 says, try accessing the database from a console -- sqlite3 /path/to/my.db, then .tables or select * from mytable or some insert into commands to check that data is there, and that you can insert new data. try (temporarily?) creating a new database file and switching to that. harry | 1872 posts | PythonAnywhere staff| | June 25, 2013, 10:24 a.m. | permalink Thanks for the reply. The problem was fixed by changing to absolute path, as you suggested. However, I still find this breakage strange because for the past couple of weeks it worked without a problem, and then suddenly ceased working overnight, a few days after the system upgrades. zauberparacelsus | 12 posts | June 25, 2013, 2:20 p.m. | permalink Definitely a bit strange... You might consider switching to MySQL if you need a more serious database? harry | 1872 posts | PythonAnywhere staff| | June 25, 2013, 2:58 p.m. | permalink The cur
today. This was a big SQLite show stopper. So I thought it was about time I figured out what was causing this. The error was occurring when I tried to post an update to the SQLite database in the local App_Data folder of an asp.net application. As soon as the application attempted to post the update I got the dreaded "Some kind of.." error and a SQLite journal file was created in the database folder. After this, the database became unavailable. It became available again once the journal file was deleted, but I was then back in the same situation once another update was attempted. The curious thing was that this behaviour didn't occur in the development environment, only when uploaded to the live server. My first thought was that the application for some reason didn't have rights to write to the App_Data folder. But the journal file was writing to the location with no troubles. Finally I hit upon a forum post on the System.Data.SQLite forum. This pointed in the direction of using the statement to set the journal_mode value to something other than "DELETE". The PRAGMA statement is executed exactly like a query, so all that needs to be done is to execute the statement using a SQLiteCommand object in the same way you would execute any other SQL statement. using(SQLiteConnection conn = new SQLiteConnection(sqliteConnectionString)) { conn.Open(); SQLiteCommand cmd = new SQLiteCommand(); cmd.Connection = conn; string pragma = "PRAGMA journal_mode = OFF"; cmd.CommandText = pragma; cmd.ExecuteNonQuery(); } Share this Post: Node.js Ajax basics Please enable JavaScript to view the comments powered by Disqus. comments powered by Disqus Copyrights © 2016 All Rights Reserved by Steve McArthur. Privacy Policy [emailprotected]