Possible LDAP deadlock

Jeff_McAdams · June 20, 2006, 2:08pm

OK…I’‘ve mentioned that I’‘m still having LDAP issues (seemingly) in previous threads. I’‘ve finally gotten a thread dump when the server wedges (ain’'t intermittent problems a pain to diagnose?)

Some setup info…

SuSE 10.0, rpm install, LDAP auth and user providers (not using group or vcard providers currently, though I would like to get back to using them sooner or later, but anything that exacerbates these LDAP wedges is bad for me right now).

I have a shared roster group manually created (since I’‘m not currently using the LDAP group provider) with all users added to it and the shared roster group being present in everyone’‘s roster (basically, everyone in the company shows up in everyone else’‘s roster). When whatever it is happens, any operation on the server that retrieves all users (such as logging in and pulling the roster with that shared roster group with all users, or going to the edit group page for the shared group, which displays all the users in the group, will hang and never return. I can click on other pages in the admin console and they will return, but not anything that deals with the full list of users. I suspect, but have not be able to confirm, that if I went to through the pages of users in the user’‘s summary, I would hit a page that would hang waiting for a specific user to return…I haven’‘t confirmed this, yet, however. I will try to do that next time this wedges…perhaps there’'s a specific user object that is triggering this and I can narrow it down to 15 users, at least, doing that.

wildfire.xml (with large comments eliminated to save space):

<adminDN/>
<adminPassword/>
<sslEnabled>true</sslEnabled>
<groupSearchFilter><![CDATA[(&(cn=)(cn=Users))]]></FN>
        <NICKNAME attrs="uid"></NICKNAME>

uid: home: shell:

and the thread dump:

Full thread dump Java HotSpot™ Server VM (1.5.0_06-b05 mixed mode):

“Client SR - 32872251” daemon prio=1 tid=0x082f87e0 nid=0x6458 waiting for monitor entry

at org.jivesoftware.wildfire.user.UserManager.getUser(UserManager.java:169)

waiting to lock (a java.lang.String)

at org.jivesoftware.wildfire.user.User.getRoster(User.java:280)

at org.jivesoftware.wildfire.handler.IQRosterHandler.manageRoster(IQRosterHandler. java:187)

at org.jivesoftware.wildfire.handler.IQRosterHandler.handleIQ(IQRosterHandler.java :104)

at org.jivesoftware.wildfire.handler.IQHandler.process(IQHandler.java:48)

at org.jivesoftware.wildfire.IQRouter.handle(IQRouter.java:265)

at org.jivesoftware.wildfire.IQRouter.route(IQRouter.java:96)

at org.jivesoftware.wildfire.PacketRouter.route(PacketRouter.java:65)

at org.jivesoftware.wildfire.net.SocketReader.processIQ(SocketReader.java:396)

at org.jivesoftware.wildfire.net.ClientSocketReader.processIQ(ClientSocketReader.j ava:50)

at org.jivesoftware.wildfire.net.SocketReader.readStream(SocketReader.java:264)

at org.jivesoftware.wildfire.net.SocketReader.run(SocketReader.java:119)

at java.lang.Thread.run(Unknown Source)

“SunJsseListener1-2” prio=1 tid=0x080dee50 nid=0x6405 in Object.wait()

at java.lang.Object.wait(Native Method)

waiting on <0x7b3b16f0> (a org.mortbay.util.ThreadPool$PoolThread)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:522)
locked <0x7b3b16f0> (a org.mortbay.util.ThreadPool$PoolThread)

“Client SR - 7141756” daemon prio=1 tid=0x080dcf58 nid=0x63d4 waiting for monitor entry

at org.jivesoftware.wildfire.roster.RosterManager.getRoster(RosterManager.java:88)

waiting to lock <0x5bcc0868> (a java.lang.String)
at org.jivesoftware.wildfire.handler.PresenceUpdateHandler.broadcastUpdate(Presenc eUpdateHandler.java:257)
at org.jivesoftware.wildfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:109)
at org.jivesoftware.wildfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:153)
at org.jivesoftware.wildfire.SessionManager$ClientSessionListener.onConnectionClos e(SessionManager.java:1288)
at org.jivesoftware.wildfire.net.SocketConnection.notifyCloseListeners(SocketConne ction.java:552)
locked <0x62305468> (a java.util.HashMap)

at org.jivesoftware.wildfire.net.SocketConnection.close(SocketConnection.java:374)

at org.jivesoftware.wildfire.handler.IQAuthHandler.login(IQAuthHandler.java:199)

at org.jivesoftware.wildfire.handler.IQAuthHandler.handleIQ(IQAuthHandler.java:140 )