Hi Michael, I was finally able to reproduce your issue this evening. The possible change was that connection saves use non-ex write locks now, rather than exclusive write locks. I've looked carefully at the file-based locking code for this though and found no obvious problems. I'll keep looking.
Karl On Wed, Jan 14, 2015 at 7:22 PM, Michael Wilken <[email protected]> wrote: > Hi, > > I'm running into a hanging issue when trying to use the new 2.0 release. > Using the multiprocess-file-example, I do the following: > > 1. start-database.sh > 2. initialize.sh > 3. start-webapps.sh > 4. start-agents.sh > > Then, go to the mcf-crawler-ui, create a new Null output connection, and > try to save it. My browser then just spins (I've given it up to 30 > minutes, and nothing happens). > > A stack trace shows the Jetty process hanging here: > > "qtp638408253-18" prio=5 tid=0x00007fdb3cc30000 nid=0x7403 in > Object.wait() [0x000000012366f000] > java.lang.Thread.State: TIMED_WAITING (on object monitor) > at java.lang.Object.wait(Native Method) > - waiting on <0x000000011bdf15a0> (a java.lang.Integer) > at org.apache.manifoldcf.core.system.ManifoldCF.sleep(ManifoldCF.java:1259) > - locked <0x000000011bdf15a0> (a java.lang.Integer) > at > org.apache.manifoldcf.core.lockmanager.LockObject.obtainGlobalNonExWriteLock(LockObject.java:245) > at > org.apache.manifoldcf.core.lockmanager.LockObject.enterNonExWriteLock(LockObject.java:190) > - locked <0x000000011b30c440> (a > org.apache.manifoldcf.core.lockmanager.FileLockObject) > at > org.apache.manifoldcf.core.lockmanager.LockGate.enterNonExWriteLock(LockGate.java:219) > at > org.apache.manifoldcf.core.lockmanager.BaseLockManager.enterNonExWrite(BaseLockManager.java:959) > at > org.apache.manifoldcf.core.lockmanager.BaseLockManager.enterNonExWriteLock(BaseLockManager.java:731) > at > org.apache.manifoldcf.core.lockmanager.LockManager.enterNonExWriteLock(LockManager.java:276) > at > org.apache.manifoldcf.agents.outputconnection.OutputConnectionManager.save(OutputConnectionManager.java:301) > at org.apache.jsp.execute_jsp._jspService(execute_jsp.java:1047) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) > > These steps work fine in the 1.7.2 release. Also, the single process > example work as expected with these steps. > > Did I miss a step needed in the 2.0 release with the 'file' example? > > Thanks, > -mike > > >
