Why can't we use runClinicalPipeline while ctakesCVD is in use?

[Reed Villanueva <vi...@gmail.com>]

Running bin/runClinicalPipeline.sh the the bin/runctakesCVD.sh is also
being used throws a jdbc connection error:


> 22 Mar 2018 22:22:40  INFO UmlsUserApprover - Checking UMLS Account at
> https://uts-ws.nlm.nih.gov/restful/isValidUMLSUser for user myuser:
> ......22 Mar 2018 22:22:42  INFO UmlsUserApprover -   UMLS Account at
> https://uts-ws.nlm.nih.gov/restful/isValidUMLSUser for user myuser has
> been validated
> 22 Mar 2018 22:22:42  INFO JdbcConnectionFactory - Connecting to
> jdbc:hsqldb:file:resources/org/apache/ctakes/dictionary/lookup/fast/sno_rx_16ab/sno_rx_16ab:
> .................................................. 50
> ...........
> 22 Mar 2018 22:23:03 ERROR JdbcConnectionFactory -   Could not create
> Connection with
> jdbc:hsqldb:file:/home/myuser/apache-ctakes-4.0.0/resources/org/apache/ctakes/dictionary/lookup/fast/sno_rx_16ab/sno_rx_16ab
> as sa
> java.sql.SQLException: Database lock acquisition failure: lockFile:
> org.hsqldb.persist.LockFile@87544bb[file
> =/home/myuser/apache-ctakes-4.0.0/resources/org/apache/ctakes/dictionary/lookup/fast/sno_rx_16ab/sno_rx_16ab.lck,
> exists=true, locked=false, valid=false, ] method: checkHeartbeat read:
> 2018-03-23 08:22:52 heartbeat - read: -9441 ms.
> at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
> at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
> at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)


Ending the ctakesCVD process and rerunning the runClinicalPipeline script
then seems to work.

Does anyone know why this is exactly? Is there perhaps a way to change this
(say changing some allowed connection count value in some config file)?
Thanks.