[Security & JAAS/JBoss] - Federated SSO for web services
by rk_jboss
Hi,
We are in the process of implementing federated SSO for non-web based applications (web services). We have some web services from different enterprises and once it is authenticated by one web service in one enterprise then it should be able to access web services exist in different enterprises and should access the web services based on their authorization level.
So, I was wondering whether JBoss Federated identity/SSO can support the following things
1) I wanted to deploy the application in FreeBSD . Does it have support to FreeBSD?
2) Can I use single sign-on, federated SSO and SAML authorization for web services?
3) Assume that it has only support for federated SSO , can I extend jboss federated API to perform or get authorization and assertion attributes from SAML to access the web services.
Pls can you point me to either documents or prototype which will give me in depth knowledge of jboss capabilities in federation.
Thanks in advance.
Thanks,
Ram
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17 years, 1 month
[JBoss Cache: Core Edition] - lots of TimeoutException
by g9yuayon
Hi,
I've been getting a lot of TimeoutExceptions when the method Cache#get() is called. My cluster is set up as below:
0. The cluster runs on JBoss Cache 3.1.0 GA. The locking scheme is MVCC. The isolation level is READ_COMMITTED.
1. Two nodes, N1, and N2. Each node is a different machine. Each node has a cache instance.
2. The node N1 only reads from cache. If it doesn't find an entry from its local cache, it will read from N2 via a ClusteredCacheLoader with synchronous replication.
3. The node N2 both reads from and writes to its cache.
If I understand it correctly, a read operation doesn't not aquire a lock, let alone a write-lock. So, why would I get many TimeoutExceptions when Cache#get() was called, as the stack trace shows? Could anyone please let me what possibly could cause this problem, and how I could solve it?
org.jboss.cache.lock.TimeoutException: Unable to acquire lock on Fqn [/parentNode/key] after [20000] milliseconds for requestor [Thread[pool-1-thread-37,5,main]]! Lock held by [null]
at org.jboss.cache.mvcc.MVCCNodeHelper.acquireLock(MVCCNodeHelper.java:157)
at org.jboss.cache.mvcc.MVCCNodeHelper.wrapNodeForWriting(MVCCNodeHelper.java:252)
at org.jboss.cache.mvcc.MVCCNodeHelper.wrapNodeForWriting(MVCCNodeHelper.java:184)
at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadIfNeeded(CacheLoaderInterceptor.java:300)
at org.jboss.cache.interceptors.CacheLoaderInterceptor.visitGetKeyValueCommand(CacheLoaderInterceptor.java:165)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:131)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:131)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.TxInterceptor.attachGtxAndPassUpChain(TxInterceptor.java:301)
at org.jboss.cache.interceptors.TxInterceptor.handleDefault(TxInterceptor.java:283)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.CacheMgmtInterceptor.visitGetKeyValueCommand(CacheMgmtInterceptor.java:77)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:178)
at org.jboss.cache.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:130)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.InterceptorChain.invoke(InterceptorChain.java:287)
at org.jboss.cache.invocation.CacheInvocationDelegate.get(CacheInvocationDelegate.java:444)
I also noticed quite many RejectedExceptions when there were many TimeoutExceptions. Are they somehow correlated?
java.util.concurrent.RejectedExecutionException
at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:1759)
at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:767)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:658)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:92)
at org.jboss.cache.marshall.CommandAwareRpcDispatcher.invokeRemoteCommands(CommandAwareRpcDispatcher.java:206)
at org.jboss.cache.RPCManagerImpl.callRemoteMethods(RPCManagerImpl.java:748)
at org.jboss.cache.loader.ClusteredCacheLoader.callRemote(ClusteredCacheLoader.java:135)
at org.jboss.cache.loader.ClusteredCacheLoader.get0(ClusteredCacheLoader.java:195)
at org.jboss.cache.loader.ClusteredCacheLoader.get(ClusteredCacheLoader.java:182)
at org.jboss.cache.loader.ChainingCacheLoader.get(ChainingCacheLoader.java:111)
at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadData(CacheLoaderInterceptor.java:496)
at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadIfNeeded(CacheLoaderInterceptor.java:315)
at org.jboss.cache.interceptors.CacheLoaderInterceptor.visitGetKeyValueCommand(CacheLoaderInterceptor.java:165)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:131)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:131)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.TxInterceptor.attachGtxAndPassUpChain(TxInterceptor.java:301)
at org.jboss.cache.interceptors.TxInterceptor.handleDefault(TxInterceptor.java:283)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.CacheMgmtInterceptor.visitGetKeyValueCommand(CacheMgmtInterceptor.java:77)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
at org.jboss.cache.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:178)
at org.jboss.cache.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:130)
at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(AbstractVisitor.java:110)
at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyValueCommand.java:97)
at org.jboss.cache.interceptors.InterceptorChain.invoke(InterceptorChain.java:287)
at org.jboss.cache.invocation.CacheInvocationDelegate.get(CacheInvocationDelegate.java:444)
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17 years, 1 month