svn commit: r1612535 - /jena/trunk/jena-tdb/src/main/java/com/hp/hpl/jena/tdb/base/file/LocationLock.java

[rvesse]

Author: rvesse
Date: Tue Jul 22 10:34:38 2014
New Revision: 1612535

URL: http://svn.apache.org/r1612535
Log:
Issue a warning when unable to obtain a PID when trying to obtain the lock 
(JENA-648)

Modified:
    
jena/trunk/jena-tdb/src/main/java/com/hp/hpl/jena/tdb/base/file/LocationLock.java

Modified: 
jena/trunk/jena-tdb/src/main/java/com/hp/hpl/jena/tdb/base/file/LocationLock.java
URL: 
http://svn.apache.org/viewvc/jena/trunk/jena-tdb/src/main/java/com/hp/hpl/jena/tdb/base/file/LocationLock.java?rev=1612535&r1=1612534&r2=1612535&view=diff
==============================================================================
--- 
jena/trunk/jena-tdb/src/main/java/com/hp/hpl/jena/tdb/base/file/LocationLock.java
 (original)
+++ 
jena/trunk/jena-tdb/src/main/java/com/hp/hpl/jena/tdb/base/file/LocationLock.java
 Tue Jul 22 10:34:38 2014
@@ -27,6 +27,7 @@ import org.apache.jena.atlas.io.IO;
 
 import com.hp.hpl.jena.tdb.TDBException;
 import com.hp.hpl.jena.tdb.sys.ProcessUtils;
+import com.hp.hpl.jena.tdb.sys.SystemTDB;
 
 /**
  * Represents a lock on a TDB location
@@ -163,6 +164,7 @@ public class LocationLock {
             if (pid == NO_OWNER) {
                 // In the case where we cannot obtain our PID then we cannot
                 // obtain a lock
+                SystemTDB.errlog.warn("Location " + 
location.getDirectoryPath() + " cannot be locked as unable to obtain PID of 
current process, if another JVM accessed this location while this process is 
accessing it then data corruption may occur");
                 return;
             }