TSVN locking Bug

When using TSVN 1.7.6 locking errors of the following type were being seen
when attempting a merge:

Error 'C:\path\to\file' is already locked via
Error 'C:\path\to\file'.

TSVNCache was disabled to see if this would have an effect but it did not
work.

To try and resolve the problem an upgrade to TSVN 1.8.12 was carried out.
However, following the upgrade, when attempting a merge, the following
locking error started occuring instead:

Error sqlite[S5]: database is locked
Error Additional errors:
Error sqlite[S5]: database is locked
Error Another process is blocking the working copy database, or the
underlying filesystem does not spport file locking; if the working copy is
on a network filesystem, make sure file locking has been enabled on the
file server.

This occurred partway through the merge after some data has been
transferred.

Just before the failure of the merge operation process monitor showed a
LockFile operation being carried out against the wc.db file. In addition
the monitor shows read_conflict errors relating to the wc.db file.

An upgrade to TSVN 1.9.3 was carried out but this second locking issue
persisted.

A windows shortcut file within the repository was highlighted as a
potential cause, which appeared to resolve the second locking issue.
However following this the original locking issue returned.

What further investigation can be carried out the determine the source of
these locking problems?

*IAN DAWSON* SUPPORT ENGINEER

*T *+44 114 3039985 / +1 925-808-7321
*E* ian.dawson_at_wandisco.com

*www.wandisco.com <http://www.wandisco.com>*

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