9:38 p.m.
[
https://issues.jboss.org/browse/AS7-6711?page=com.atlassian.jira.plugin.s...
]
Brian Stansberry commented on AS7-6711:
---------------------------------------
It's simpler than the original description. Multiple servers aren't required, nor
is restart-servers required. Calling /server-group=x:start-servers when the master HC has
just a single server in group "x" will result in the problem.
The problem is that:
1) OperationCoordinatorStepHandler calls context.acquireControllerLock() at line 209. The
lock will be held until the server connects.
2) The registering server needs to acquire the lock as part of registration,
ServerToHostProtocolHandler line 254. Until it gets the lock, it cannot connect.
This deadlocks.
A likely workaround is to not run servers on the master HostController. The lock acquired
in 1) is done on the master.
Unable to restart server group in domain mode
---------------------------------------------
Key: AS7-6711
URL: https://issues.jboss.org/browse/AS7-6711
Project: Application Server 7
Issue Type: Bug
Components: Domain Management
Affects Versions: EAP 6.1.0.Alpha (7.2.0.Final)
Reporter: Brian Stansberry
Assignee: Brian Stansberry
Priority: Critical
Fix For: 8.0.0.Alpha1
Attachments: AS7-6711-threads.txt
Restarting the servers in the standard domain.xml main-server-group will result in a hang
in the CLI and in the master HC.
To reproduce start the standard domain.sh and in another window launch the CLI and:
[domain@localhost:9999 /] /server-group=main-server-group:restart-servers
Resulting console log output:
[Host Controller] 18:17:30,511 INFO [org.jboss.as.host.controller]
(management-handler-thread - 3) JBAS010923: Stopping server server-one
18:17:30,515 INFO [org.jboss.as.process.Server:server-one.status]
(ProcessController-threads - 5) JBAS012018: Stopping process 'Server:server-one'
[Server:server-one] 18:17:30,599 INFO [org.jboss.as.connector.deployment] (MSC service
thread 1-4) JBAS010410: Unbound JCA ConnectionFactory [java:/JmsXA]
[Server:server-one] 18:17:30,600 INFO [org.jboss.as.connector.subsystems.datasources]
(MSC service thread 1-3) JBAS010409: Unbound data source
[java:jboss/datasources/ExampleDS]
[Server:server-one] 18:17:30,611 INFO [org.apache.coyote.http11] (MSC service thread
1-1) JBWEB003075: Coyote HTTP/1.1 pausing on: http-localhost/127.0.0.1:8080
[Server:server-one] 18:17:30,612 INFO [org.apache.coyote.http11] (MSC service thread
1-1) JBWEB003077: Coyote HTTP/1.1 stopping on : http-localhost/127.0.0.1:8080
[Server:server-one] 18:17:30,616 INFO [org.jboss.as.messaging] (ServerService Thread
Pool -- 79) JBAS011605: Unbound messaging object to jndi name
java:jboss/exported/jms/RemoteConnectionFactory
[Server:server-one] 18:17:30,615 INFO [org.apache.catalina.core] (MSC service thread
1-2) JBWEB001079: Container
org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/] has not been
started
[Server:server-one] 18:17:30,640 INFO [org.jboss.as.connector.deployers.jdbc] (MSC
service thread 1-3) JBAS010418: Stopped Driver service with driver-name = h2
[Server:server-one] 18:17:30,664 INFO [org.hornetq.ra] (MSC service thread 1-4)
HQ151005: HornetQ resource adaptor stopped
[Server:server-one] 18:17:30,704 INFO [org.hornetq.core.server] (MSC service thread 1-3)
HQ221004: HornetQ Server version 2.3.0.CR1 (buzzzzz!, 122)
[93f152f7-8aa1-11e2-8c0e-99b598ec3b97] stopped
[Host Controller] 18:17:30,722 INFO [org.jboss.as.host.controller] (Remoting
"pingguo.local:MANAGEMENT" read-1) JBAS010926: Unregistering server server-one
[Server:server-one] 18:17:30,754 INFO [org.jboss.as] (MSC service thread 1-3)
JBAS015950: JBoss AS 8.0.0.Alpha1-SNAPSHOT "TBD" stopped in 189ms
[Server:server-one]
18:17:30,815 INFO [org.jboss.as.process.Server:server-one.status] (reaper for
Server:server-one) JBAS012010: Process 'Server:server-one' finished with an exit
status of 0
[Host Controller] 18:17:30,818 INFO [org.jboss.as.host.controller]
(ProcessControllerConnection-thread - 2) JBAS010926: Unregistering server server-one
[Host Controller] 18:17:30,836 INFO [org.jboss.as.host.controller]
(management-handler-thread - 3) JBAS010922: Starting server server-one
18:17:30,845 INFO [org.jboss.as.process.Server:server-one.status]
(ProcessController-threads - 5) JBAS012017: Starting process 'Server:server-one'
[Server:server-one] 18:17:31,676 INFO [org.jboss.modules] (main) JBoss Modules version
1.2.0.CR2
[Server:server-one] 18:17:32,178 INFO [org.jboss.msc] (main) JBoss MSC version
1.1.1.Final
[Server:server-one] 18:17:32,332 INFO [org.jboss.as] (MSC service thread 1-4)
JBAS015899: JBoss AS 8.0.0.Alpha1-SNAPSHOT "TBD" starting
[Server:server-one] 18:17:32,530 INFO [org.xnio] (MSC service thread 1-3) XNIO Version
3.1.0.Beta9
[Server:server-one] 18:17:32,538 INFO [org.xnio.nio] (MSC service thread 1-3) XNIO NIO
Implementation Version 3.1.0.Beta9
[Server:server-one] 18:17:32,559 INFO [org.jboss.remoting] (MSC service thread 1-3)
JBoss Remoting version 3.2.15.GA
[Host Controller] 18:17:33,607 INFO [org.jboss.as.domain.controller.mgmt] (Remoting
"pingguo.local:MANAGEMENT" task-16) JBAS010920: Server [Server:server-one]
registered using connection [Channel ID 2bacdeb7 (inbound) of Remoting connection 49660c5f
to /127.0.0.1:60647]
After that everything hangs.
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Brian Stansberry (JIRA)