Hi All, We have been having issues with workflows generating intermittent errors using sqlite. We recently converted to postgresql 9.3 in an attempt to resolve the issue as suggested in prior posts. Despite switching to postgresql we continue to have these errors. Does anyone have any additional suggestions that may resolve this issue? Thanks, Todd Traceback (most recent call last): File "/opt/paml/galaxy-dist/lib/galaxy/jobs/runners/__init__.py", line 122, in prepare_job job_wrapper.runner_command_line = self.build_command_line( job_wrapper, include_metadata=include_metadata, include_work_dir_outputs=include_work_dir_outputs ) File "/opt/paml/galaxy-dist/lib/galaxy/jobs/runners/__init__.py", line 172, in build_command_line work_dir_outputs = self.get_work_dir_outputs( job_wrapper ) File "/opt/paml/galaxy-dist/lib/galaxy/jobs/runners/__init__.py", line 222, in get_work_dir_outputs for dataset in dataset_assoc.dataset.dataset.history_associations + dataset_assoc.dataset.dataset.library_associations: File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/attributes.py", line 168, in __get__ return self.impl.get(instance_state(instance),dict_) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/attributes.py", line 453, in get value = self.callable_(state, passive) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/strategies.py", line 508, in _load_for_state return self._emit_lazyload(session, state, ident_key) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/strategies.py", line 574, in _emit_lazyload result = q.all() File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/query.py", line 2115, in all return list(self) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/query.py", line 2227, in __iter__ return self._execute_and_instances(context) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/orm/query.py", line 2242, in _execute_and_instances result = conn.execute(querycontext.statement, self._params) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/engine/base.py", line 1449, in execute params) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/engine/base.py", line 1584, in _execute_clauseelement compiled_sql, distilled_params File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/engine/base.py", line 1698, in _execute_context context) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/engine/base.py", line 1691, in _execute_context context) File "/opt/paml/galaxy-dist/eggs/SQLAlchemy-0.7.9-py2.6-linux-x86_64-ucs4.egg/sqlalchemy/engine/default.py", line 331, in do_execute cursor.execute(statement, parameters) OperationalError: (OperationalError) database is locked u'SELECT library_dataset_dataset_association.id AS library_dataset_dataset_association_id, PAML EMAIL DISCLAIMER: Information contained in this message may be privileged and confidential. If the reader of this message is not the intended recipient, be notified that any dissemination, distribution or copying of this communication is strictly prohibited. If this communication is received in error, please notify the sender immediately by replying to the message and deleting from your computer. Thank you