Can a schema lock be acquired because of an existing lock?

Can a schema lock be acquired because of an existing lock?

A schema lock cannot be acquired because of an existing lock. Cause When creating a new feature dataset or feature class in a file geodatabase located on a network drive, an error is returned indicating that the file is locked even though only one user is accessing the file.

When does ArcGIS automatically acquire a shared lock?

ArcGIS automatically acquires a shared lock on an individual dataset when it is in use, for example, anytime a user is editing or querying the contents of a feature class or table. This mechanism is used so other users cannot make changes to the underlying dataset and its schema while it is in use.

Can a shared lock be used on a geodatabase?

If a user wants to make changes to a geodatabase schema, the specific datasets with which he or she is working must not be in use by others. In other words, to make changes to a dataset, a shared lock must not exist on that dataset. In personal geodatabases, all locks apply to all the contents in the whole geodatabase.

Can you change the schema of a geodatabase?

For example, while adding a feature class from a geodatabase to your map, its schema cannot be altered by you or another user. Once you have removed the feature class from your map or closed the map document, and no other users are querying or editing that feature class, its schema can be altered. Geodatabases and their datasets are rarely static.

Can you get rid of schema stability lock?

Schema Stability locks are one of those necessary parts of SQL Server. While you can absorb a dirty read (or any of the problems that go with uncommitted reads), you really can’t absorb the impact of an underlying schema changing on you mid query. Really, SQL couldn’t handle it either. So that is a lock you can’t get rid of.

What is the schema lock permission for Linked servers?

The exact message is: object ‘X’, database ‘Y’, schema ‘dbo’. I suspected some permission related issue (that is very common with linked-servers). A quick search later confirmed it, but as documentation is pretty rare on this issue I decided to post this information to help someone in the future.

Can you avoid a SCH-s lock in SQL Server?

Even an online index operation will need to briefly take Sch-S and Sch-M locks. You cannot avoid this for indexing or schema modification queries. Agree with StrayCatDBA and their answer. Schema Stability locks are one of those necessary parts of SQL Server.

Is there a way to remove lock on feature class?

The proposed solution by @StacyR will work in all situations except for exclusive edit locks (ED) according to arcgis help documentation. If the locks are being created by your code, then you aren’t cleaning up after yourself. Release all references to feature classes, workspaces, cursors, etc.

Why does my computer lock my geodatabase?

For example, a .lock file named xxx.PLUTO.15332.sr.lock indicates the computer PLUTO is accessing the data.As a last resort, you can clear all active locks by restarting the computer containing the file geodatabase. However, before you do this, make sure nobody is accessing the data; otherwise, their work may not be saved.

Where do I find locked files in ArcGIS?

To keep track of locked datasets, ArcGIS places *.lock files in the file geodatabase folder. When a process terminates, the .lock files associated with it are automatically deleted. In some cases, however, such as when a process ends prematurely, .lock files may be left behind in the geodatabase folder.

Why does geodatabase not expand on computer 2?

When I try to expand the File Geodatabase on Computer 2 an error comes up stating “A schema lock cannot be acquired because of an existing lock.” and the GeoDatabase will not expand for editing feature classes. Are there any solutions to this problem?

What does a schema lock in ArcGIS mean?

A schema is the structure or design of a database or database object such as a feature class or table. A schema lock means that another application is accessing a database, and you are not allowed to alter its structure by adding or removing fields.

When to use ArcGIS to change geodatabase schema?

Any number of shared locks can be established on a single feature class or table at any given time. When you use ArcGIS to modify your geodatabase schema—for example, to add a field or alter rules—ArcGIS attempts to establish an exclusive lock on the data being altered.