Negative - no other process/thread is executing any DDL statements. I have a hunch that selecting from INFORMATION_SCHEMA reads all dB tables, so if any of them are read-locked, we’d get this error. Question is: in what world (or config) do table’s get read locked when no DDL is being performed? Or is there another way the INFORMATION_SCHEMA could get locked? (Ive done quite a bit with MySQL, but tread very lightly, and rarely, on Microsoft/SQL Server land.)
There also might a “too-short deadlock timeout”? Im waiting on an effing VMWare license to boot windows on my Mac and load up SQL Server Management Studio... On Mon, Feb 26, 2018 at 9:30 PM Mike Bayer <mike...@zzzcomputing.com> wrote: > so do you have another thread or process that is running database > migrations, like create table or alter table, while that happens? > > On Mon, Feb 26, 2018 at 6:16 PM, Sean Harrington <seanhar...@gmail.com> > wrote: > > We're getting the following deadlock error on SQL Server: > > > > > > [FreeTDS][SQL Server]Transaction (Process ID 65) was deadlocked on lock > > resources with another process and has been chosen as the deadlock > victim. > > Rerun the transaction. (1205) (SQLExecDirectW)') [SQL: 'SELECT > > [INFORMATION_SCHEMA].[TABLES].[TABLE_NAME] \nFROM > > [INFORMATION_SCHEMA].[TABLES] \nWHERE > > [INFORMATION_SCHEMA].[TABLES].[TABLE_SCHEMA] = CAST(? AS NVARCHAR(max)) > AND > > [INFORMATION_SCHEMA].[TABLES].[TABLE_TYPE] = ? ORDER BY > > [INFORMATION_SCHEMA].[TABLES].[TABLE_NAME]'] [parameters: (u'dbo', 'BASE > > TABLE')] > > > > > > > > > > when we run: > > > > metadata.reflect(engine) > > > > There is an extremely small load on this server, and I am wondering why > this > > query would cause a deadlock. Planning on looking into this further with > the > > SQL Server Deadlock tool: > > https://technet.microsoft.com/en-us/library/ms188246(v=sql.105).aspx > > > > Anyone seen this before? > > > > -- > > SQLAlchemy - > > The Python SQL Toolkit and Object Relational Mapper > > > > http://www.sqlalchemy.org/ > > > > To post example code, please provide an MCVE: Minimal, Complete, and > > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > > description. > > --- > > You received this message because you are subscribed to the Google Groups > > "sqlalchemy" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to sqlalchemy+unsubscr...@googlegroups.com. > > To post to this group, send email to sqlalchemy@googlegroups.com. > > Visit this group at https://groups.google.com/group/sqlalchemy. > > For more options, visit https://groups.google.com/d/optout. > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to a topic in the > Google Groups "sqlalchemy" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/sqlalchemy/tAAb5KtKsb8/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. > -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
