DPS 6.3 takes 100% of CPU time
I've 2 couple of DPS 6.3 proxy servers running upstream 2 couple of DS 6.3 on RHAS 4U6, JRE 1.5.0_16-b02
located on 2 different sites.(6.3_KS_6661375_6670752_6654625_6513526_6653253_663073_6723858 B2008.0717.2043)
I notice about once a week to every 2 weeks that a proxy server on each site starts to send
to me warning messages about an LDAP data source not available on the remote site.
The proactive monitor thread logs messages such as "exceeded maximum allowed timeout of 10000 ms" .
The problem is that when it occurs, the proxy starts to take all the available CPU time so that there's
no other solution than restarting it .
Known problem ?
The problem occured today, I had about 35 threads running among which the 5 below were taking all the CPU time,
the others being under 2% CPU :
PID USER PR NI %CPU TIME+ %MEM VIRT RES SHR S COMMAND
15333 root 25 0 90 14:03.92 55.3 1003m 558m 11m R java
15309 root 21 0 85 15:12.86 55.3 1003m 558m 11m R java
15353 root 23 0 85 17:57.53 55.3 1003m 558m 11m R java
15335 root 25 0 68 16:56.31 55.3 1003m 558m 11m R java
15312 root 25 0 63 4175:46 55.3 1003m 558m 11m R java
The jstack trace extract is as follows for the above threads:
Thread 15309: (state = IN_VM)
- java.lang.Throwable.getStackTraceElement(int) @bci=0 (Compiled frame; information may be imprecise)
- java.lang.Throwable.getOurStackTrace() @bci=34, line=592 (Compiled frame)
- java.lang.Throwable.getStackTrace() @bci=1, line=583 (Compiled frame)
- com.sun.directory.proxy.util.StringBufferPool.getBuffer() @bci=130, line=109 (Compiled frame)
- com.sun.directory.proxy.util.Log.exceptionToString(java.lang.Exception) @bci=3, line=892 (Compiled frame)
- com.sun.directory.proxy.asn1.ASN1Reader.readElement() @bci=958, line=513 (Compiled frame)
- com.sun.directory.proxy.asn1.ASN1Reader.readElement(int) @bci=36, line=226 (Compiled frame)
- com.sun.directory.proxy.server.MultiplexedOpConnectionV2.readMessage(int, int) @bci=309, line=338 (Compiled frame)
- com.sun.directory.proxy.server.OpConnection.readMessage(int) @bci=12, line=333 (Compiled frame)
- com.sun.directory.proxy.server.LDAPServer.getConnection(int, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest, int) @bci=449, line=1806 (Compiled frame)
- com.sun.directory.proxy.server.LDAPServer.getReadConnection(int, boolean, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest) @bci=284, line=1649 (Compiled frame)
- com.sun.directory.proxy.extensions.ProportionalLoadBalancingAlgorithm.getSearchConnection(com.sun.directory.proxy.server.ClientOperation, int, boolean, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest) @bci=371, line=2132 (Compiled frame)
- com.sun.directory.proxy.server.BackendSet.getSearchConnection(com.sun.directory.proxy.server.ClientOperation, com.sun.directory.proxy.server.ClientConnection, int, boolean, com.sun.directory.proxy.ldap.BindRequest) @bci=70, line=822 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.getSearchContext(com.sun.directory.proxy.server.ClientOperation, boolean, java.lang.StringBuffer, com.sun.directory.proxy.server.DataViewOpContext) @bci=152, line=220 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.getSearchContext(com.sun.directory.proxy.server.ClientOperation, java.lang.StringBuffer, com.sun.directory.proxy.server.DataViewOpContext) @bci=5, line=137 (Compiled frame)
- com.sun.directory.proxy.server.WorkerThread.runThread() @bci=166, line=150 (Compiled frame)
Error occurred during stack walking:
Thread 15312: (state = IN_JAVA)
Thread 15333: (state = IN_VM)
- java.lang.Thread.yield() @bci=0 (Compiled frame; information may be imprecise)
- com.sun.directory.proxy.server.MultiplexedOpConnectionV2.readFromNetwork(int, int) @bci=72, line=663 (Compiled frame)
- com.sun.directory.proxy.server.MultiplexedOpConnectionV2.readMessage(int, int) @bci=309, line=338 (Compiled frame)
- com.sun.directory.proxy.server.OpConnection.readMessage(int) @bci=12, line=333 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.processSearchRequest(com.sun.directory.proxy.server.LDAPDataViewOpContext, com.sun.directory.proxy.ldap.LDAPMessage, com.sun.directory.proxy.server.DataViewConsumer) @bci=66, line=3387 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataViewOpContext.processSearchRequest(com.sun.directory.proxy.ldap.LDAPMessage, com.sun.directory.proxy.server.DataViewConsumer) @bci=10, line=203 (Compiled frame)
- com.sun.directory.proxy.server.WorkerThread.runThread() @bci=166, line=150 (Compiled frame)
Error occurred during stack walking:
Thread 15335: (state = IN_VM)
- java.net.SocketInputStream.socketRead0(java.io.FileDescriptor, byte[], int, int, int) @bci=0 (Compiled frame; information may be imprecise)
- java.net.SocketInputStream.read(byte[], int, int) @bci=84, line=129 (Compiled frame)
- com.sun.directory.proxy.asn1.ASN1Reader.readElement(int) @bci=36, line=226 (Compiled frame)
- com.sun.directory.proxy.server.MultiplexedOpConnectionV2.readMessage(int, int) @bci=309, line=338 (Compiled frame)
- com.sun.directory.proxy.server.OpConnection.readMessage(int) @bci=12, line=333 (Compiled frame)
- com.sun.directory.proxy.server.LDAPServer.getConnection(int, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest, int) @bci=449, line=1806 (Compiled frame)
- com.sun.directory.proxy.server.LDAPServer.getReadConnection(int, boolean, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest) @bci=284, line=1649 (Compiled frame)
- com.sun.directory.proxy.extensions.ProportionalLoadBalancingAlgorithm.getSearchConnection(com.sun.directory.proxy.server.ClientOperation, int, boolean, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest) @bci=371, line=2132 (Compiled frame)
- com.sun.directory.proxy.server.BackendSet.getSearchConnection(com.sun.directory.proxy.server.ClientOperation, com.sun.directory.proxy.server.ClientConnection, int, boolean, com.sun.directory.proxy.ldap.BindRequest) @bci=70, line=822 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.getSearchContext(com.sun.directory.proxy.server.ClientOperation, boolean, java.lang.StringBuffer, com.sun.directory.proxy.server.DataViewOpContext) @bci=152, line=220 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.getSearchContext(com.sun.directory.proxy.server.ClientOperation, java.lang.StringBuffer, com.sun.directory.proxy.server.DataViewOpContext) @bci=5, line=137 (Compiled frame)
- com.sun.directory.proxy.server.WorkerThread.runThread() @bci=166, line=150 (Compiled frame)
Error occurred during stack walking:
Thread 15353: (state = IN_VM)
- java.lang.Throwable.fillInStackTrace() @bci=0 (Compiled frame; information may be imprecise)
- java.lang.Throwable.<init>() @bci=10, line=181 (Compiled frame)
- com.sun.directory.proxy.util.Log.exceptionToString(java.lang.Exception) @bci=3, line=892 (Compiled frame)
- com.sun.directory.proxy.asn1.ASN1Reader.readElement() @bci=958, line=513 (Compiled frame)
- com.sun.directory.proxy.asn1.ASN1Reader.readElement(int) @bci=36, line=226 (Compiled frame)
- com.sun.directory.proxy.server.MultiplexedOpConnectionV2.readMessage(int, int) @bci=309, line=338 (Compiled frame)
- com.sun.directory.proxy.server.OpConnection.readMessage(int) @bci=12, line=333 (Compiled frame)
- com.sun.directory.proxy.server.LDAPServer.getConnection(int, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest, int) @bci=449, line=1806 (Compiled frame)
- com.sun.directory.proxy.server.LDAPServer.getReadConnection(int, boolean, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest) @bci=284, line=1649 (Compiled frame)
- com.sun.directory.proxy.extensions.ProportionalLoadBalancingAlgorithm.getSearchConnection(com.sun.directory.proxy.server.ClientOperation, int, boolean, com.sun.directory.proxy.server.ClientConnection, com.sun.directory.proxy.ldap.BindRequest) @bci=371, line=2132 (Compiled frame)
- com.sun.directory.proxy.server.BackendSet.getSearchConnection(com.sun.directory.proxy.server.ClientOperation, com.sun.directory.proxy.server.ClientConnection, int, boolean, com.sun.directory.proxy.ldap.BindRequest) @bci=70, line=822 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.getSearchContext(com.sun.directory.proxy.server.ClientOperation, boolean, java.lang.StringBuffer, com.sun.directory.proxy.server.DataViewOpContext) @bci=152, line=220 (Compiled frame)
- com.sun.directory.proxy.server.LDAPDataView.getSearchContext(com.sun.directory.proxy.server.ClientOperation, java.lang.StringBuffer, com.sun.directory.proxy.server.DataViewOpContext) @bci=5, line=137 (Compiled frame)
- com.sun.directory.proxy.server.WorkerThread.runThread() @bci=166, line=150 (Compiled frame)
Error occurred during stack walking:
I'll double check the proxy logs but the last time it occured, I had such like messages:
[04/Nov/2008:10:06:02 +0100] - CONN - WARN - [Thread Worker Thread 33] Unable to create a connection to LDAP server ..... Exception: Unable to open socket to ..... -- exceeded maximum allowed timeout of 10000 ms
[04/Nov/2008:10:06:02 +0100] - CONN - WARN - [Thread Worker Thread 32] Unable to create a connection to LDAP server ......Exception: Unable to open socket to ..... -- exceeded maximum allowed timeout of 10000 ms
[04/Nov/2008:10:06:02 +0100] - BACKEND - WARN - Availability check indicated that LDAP server ...... is not available. Stopping server.
[04/Nov/2008:10:06:02 +0100] - BACKEND - WARN - Availability check indicated that LDAP server ...... is not available. Stopping server.
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2457 Thread_7542 DispatchQueue_1: com.apple.main-thread (serial)
2457 start
2457 main
2454 -[NSRunLoop(NSRunLoop) run]
2439 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
2160 CFRunLoopRunSpecific
2087 __CFRunLoopRun
670 machport_insertmember
662 mach_msg
661 machmsgtrap
1 mach_msg
5 machport_insertmember
3 migget_replyport
596 machport_extractmember
589 mach_msg
577 machmsgtrap
12 mach_msg
4 machport_extractmember
3 migget_replyport
389 mach_msg
371 machmsgtrap
18 mach_msg
355 __CFRunLoopDoSources0
237 _MessageAvailable(void*)
110 XprtGetMessage
106 XPRT::InternalGetMessage(void*, unsigned int&, void*&, void*&, bool)
39 XPRT::TMessageQueue::GetMessage(bool)
14 XPRT::TPtrList::RemoveHead()
7 XPRT::TList<void*, XPRT::TDynamicTraits>::FreeNode(XPRT::TList<void*, XPRT::TDynamicTraits>::TNode*)
6 XPRT::TList<void*, XPRT::TDynamicTraits>::FreeNode(XPRT::TList<void*, XPRT::TDynamicTraits>::TNode*)
1 XPRT::TDynamicTraits::VOrphanElement(void*) const
7 XPRT::TPtrList::RemoveHead()
11 pthreadmutexunlock
8 pthreadmutexlock
4 spinlock
2 OSSpinLockUnlock
2 pthreadmutexlock
3 XPRT::TMessageQueue::GetMessage(bool)
3 _spinlock
31 free
20 szone_size
11 free
24 szonefree_definitesize
23 szonefree_definitesize
1 spinlock
5 XPRT::InternalGetMessage(void*, unsigned int&, void*&, void*&, bool)
5 operator delete(void*)
1 XPRT::TCritSec::Unlock()
1 _spinlock
2 XprtTlsGetValue
2 pthread_getspecific
110 XprtGiveMessage
85 COOL::TSocket::SocketMessageProc(unsigned int, void*, void*)
50 XprtPostMessage
48 XPRT::InternalPostMessage(void*, unsigned int, void*, void*)
25 operator new(unsigned long)
21 malloc
18 malloczonemalloc
10 szonemalloc_shouldclear
6 szonemalloc_shouldclear
4 _cpunumber
5 malloczonemalloc
2 _spinlock
1 szone_malloc
3 malloc
4 operator new(unsigned long)
10 XPRT::TMessageQueue::PostMessage(XPRT::SMessage*)
5 XPRT::TPtrList::AddTail(void*)
4 XPRT::TList<void*, XPRT::TDynamicTraits>::NewNode(void*, XPRT::TList<void*, XPRT::TDynamicTraits>::TNode*, XPRT::TList<void*, XPRT::TDynamicTraits>::TNode*)
1 XPRT::TPtrList::AddTail(void*)
4 pthreadmutexlock
1 _spinlock
6 pthreadmutexunlock
5 pthreadmutexunlock
1 spinlock
2 XPRT::InternalPostMessage(void*, unsigned int, void*, void*)
2 _spinlock
1 XPRT::TCritSec::Lock()
1 dyldstub__spinlock
1 dyldstub__spinunlock
2 XprtPostMessage
14 COOL::TSocket::FireDataAvailable()
13 COOL::TProxiedSocket::OnDataAvailable(IInputStream*, IUnknown*)
6 XPTL::CComObject<COOL::TProxiedSocket>::AddRef()
5 XPTL::CComObject<COOL::TProxiedSocket>::Release()
2 COOL::TProxiedSocket::OnDataAvailable(IInputStream*, IUnknown*)
1 COOL::TSocket::FireDataAvailable()
7 non-virtual thunk to COOL::TProxiedSocket::OnDataAvailable(IInputStream*, IUnknown*)
6 COOL::TSocket::SocketMessageProc(unsigned int, void*, void*)
6 XPRT::TPtrFromPtrMap::Lookup(void*, void*&) const
6 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::Lookup(void*, void*&) const
3 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::GetNode(void*, unsigned int&, unsigned int&, XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::TNode*&) const
2 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::GetNode(void*, unsigned int&, unsigned int&, XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::TNode*&) const
1 XPRT::TDynamicKeyTraits::VHashKey(void const*) const
3 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::Lookup(void*, void*&) const
2 XPTL::CComObject<COOL::TSocket>::AddRef()
17 XPRT::TMessageMap::Lookup(unsigned int)
7 XPRT::TPtrFromPtrMap::Lookup(void*, void*&) const
5 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::Lookup(void*, void*&) const
4 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::GetNode(void*, unsigned int&, unsigned int&, XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::TNode*&) const
3 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::GetNode(void*, unsigned int&, unsigned int&, XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::TNode*&) const
1 XPRT::TDynamicKeyTraits::VHashKey(void const*) const
1 XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::Lookup(void*, void*&) const
2 XPRT::TPtrFromPtrMap::Lookup(void*, void*&) const
3 _spinlock
3 pthreadmutexunlock
2 XPRT::TMessageMap::Lookup(unsigned int)
2 pthreadmutexlock
1 OSSpinLockUnlock
1 pthreadmutexlock
8 XprtGiveMessage
6 _MessageAvailable(void*)
4 CFRunLoopSourceSignal
3 CFRunLoopSourceSignal
1 spinlock
4 _IMWillLog
2 _spinlock
1 OSSpinLockUnlock
85 CFSetApplyFunction
84 CFBasicHashApply
40 CFBasicHashGetBucket
28 _CFSetApplyFunction_block_invoke1
20 __CFRunLoopCollectSources0
12 __CFRunLoopCollectSources0
4 CFRetain
3 _CFRetain
1 OSAtomicCompareAndSwap32Barrier
1 _compare_andswap32
8 _CFSetApplyFunction_block_invoke1
16 CFBasicHashApply
1 CFSetApplyFunction
16 __CFRunLoopDoSources0
4 CFRelease
3 _CFRelease
2 CFGetTypeID
2 dyldstubOSAtomicCompareAndSwap32Barrier
2 dyldstub_IMWillLog
1 CFBasicHashGetCount
1 CFSetGetCount
1 OSAtomicCompareAndSwap32Barrier
1 _compare_andswap32
1 OSSpinLockUnlock
29 CFSetContainsValue
25 CFBasicHashGetCountOfKey
25 _CFBasicHashFindBucket1
13 _CFBasicHashFindBucket1
10 __CFStringHash
1 CFHash
1 __CFBasicHashStandardCallback
4 CFSetContainsValue
24 __CFRunLoopRun
9 _spinlock
5 dispatch_get_main_queue_port4CF
3 CFRunLoopGetMain
2 OSSpinLockUnlock
2 dyldstubOSSpinLockLock
1 dyldstub_mach_msgtrap
1 pthread_getspecific
1 pthreadmainnp
36 __CFRunLoopFindMode
31 CFSetGetValue
30 CFBasicHashFindBucket
29 _CFBasicHashFindBucket1
9 __CFStringHash
8 _CFBasicHashFindBucket1
6 CFHash
5 __CFBasicHashStandardCallback
3 CFEqual
2 __CFBasicHashStandardCallback
1 __CFRunLoopModeHash
1 CFBasicHashFindBucket
1 CFSetGetValue
2 __bzero
2 memset
1 __CFRunLoopFindMode
17 __CFRunLoopModeIsEmpty
17 CFSetContainsValue
17 CFBasicHashGetCountOfKey
17 _CFBasicHashFindBucket1
12 __CFStringHash
5 _CFBasicHashFindBucket1
8 CFRunLoopRunSpecific
7 _spinlock
2 spinlock
2 dyldstub_machmsg
1 dyldstubOSSpinLockUnlock
121 _CFRunLoopFinished
80 __CFRunLoopFindMode
66 CFSetGetValue
63 CFBasicHashFindBucket
57 _CFBasicHashFindBucket1
22 __CFBasicHashStandardCallback
16 CFEqual
14 CFEqual
2 __CFRunLoopModeEqual
6 __CFBasicHashStandardCallback
17 _CFBasicHashFindBucket1
9 __CFStringHash
6 CFHash
3 __CFRunLoopModeHash
5 CFBasicHashFindBucket
1 __CFBasicHashStandardCallback
3 CFSetGetValue
6 __bzero
5 __CFRunLoopFindMode
2 memset
1 _CFRuntimeSetInstanceTypeID
29 __CFRunLoopModeIsEmpty
19 CFSetContainsValue
14 CFBasicHashGetCountOfKey
13 _CFBasicHashFindBucket1
7 __CFStringHash
3 _CFBasicHashFindBucket1
2 __CFBasicHashStandardCallback
1 CFHash
1 CFBasicHashGetCountOfKey
5 CFSetContainsValue
6 pthreadmainnp
2 pthread_getspecific
1 CFRunLoopGetMain
1 __CFRunLoopModeIsEmpty
6 _CFRunLoopFinished
2 OSSpinLockUnlock
2 _spinlock
2 dyldstub_pthread_mainnp
39 _CFAutoreleasePoolPop
23 _CFAutoreleasePoolPop
7 pthread_setspecific
3 pthread_getspecific
2 objcgetFreedObjectClass
2 objc_collectingEnabled
2 pthread_self
29 -[NSCFString isEqual:]
11 -[NSCFString isEqual:]
8 CFStringGetCStringPtr
4 object_getClass
3 objcmsgSendvtable2
2 _CFStringGetLength2
1 NSClassFromObject
28 CFAbsoluteTimeGetCurrent
21 gettimeofday
18 __gettimeofday
12 __nanotime
6 __gettimeofday
3 gettimeofday
7 CFAbsoluteTimeGetCurrent
17 _CFAutoreleasePoolPush
8 pthread_setspecific
7 _CFAutoreleasePoolPush
2 objc_collectingEnabled
13 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
6 NSPopAutoreleasePool
2 NSPopAutoreleasePool
2 _CFExecutableLinkedOnOrAfter
2 objc_collectingEnabled
5 _spinlock
4 objc_msgSend
3 dyldstub_CFStringGetLength2
3 dyldstub_pthreadsetspecific
2 CFRunLoopRunInMode
2 CFRunLoopGetCurrent
2 dyldstubCFStringGetCStringPtr
2 dyldstubOSSpinLockUnlock
1 dyldstub__objcgetFreedObjectClass
1 dyldstubgettimeofday
1 dyldstub_objccollectingEnabled
1 dyldstub_pthreadgetspecific
1 objcmsgSendvtable12
9 objc_msgSend
3 -[NSRunLoop(NSRunLoop) run]
1 +[NSDate distantFuture]
1 CFRunLoopRunInMode
1 NSPushAutoreleasePool
3 dyldstub_objcmsgSend
2457 Thread_7543 DispatchQueue_2: com.apple.libdispatch-manager (serial)
2457 start_wqthread
2457 pthreadwqthread
2457 dispatch_workerthread2
2457 dispatch_queueinvoke
2457 dispatch_mgrinvoke
2457 kevent
2457 Thread_7553
2457 thread_start
2457 pthreadstart
2457 XPRT::_ThreadProc(void*)
2457 XPRT::TTimer::ThreadProc(void*)
2457 XPRT::TCondVar::Wait(int)
2457 pthread_condwait
2457 _semwaitsignal
2457 Thread_7554
2457 thread_start
2457 pthreadstart
2457 XPRT::_ThreadProc(void*)
2457 COOL::TSocket::SocketThreadProc(void*)
2457 select$DARWIN_EXTSN
Total number in stack (recursive counted multiple, when >=5):
11 _spinlock
6 OSSpinLockUnlock
5 __CFBasicHashStandardCallback
5 __CFStringHash
5 _CFBasicHashFindBucket1
5 spinlock
Sort by top of stack, same collapsed (when >= 5):
_semwaitsignal 2457
kevent 2457
select$DARWIN_EXTSN 2457
machmsgtrap 1609
__CFStringHash 47
_CFBasicHashFindBucket1 46
CFBasicHashGetBucket 40
_spinlock 37
mach_msg 31
__CFRunLoopRun 24
_CFAutoreleasePoolPop 23
szonefree_definitesize 23
szone_size 20
pthreadmutexunlock 19
CFEqual 17
CFBasicHashApply 16
__CFRunLoopDoSources0 16
pthread_setspecific 15
CFHash 14
-[NSRunLoop(NSRunLoop) runMode:beforeDate:] 13
objc_msgSend 13
__CFBasicHashStandardCallback 12
__CFRunLoopCollectSources0 12
__nanotime 12
-[NSCFString isEqual:] 11
free 11
CFSetContainsValue 9
OSSpinLockUnlock 9
spinlock 9
CFRunLoopRunSpecific 8
CFStringGetCStringPtr 8
XprtGiveMessage 8
_CFSetApplyFunction_block_invoke1 8
__bzero 8
pthread_getspecific 8
CFAbsoluteTimeGetCurrent 7
XPRT::TPtrList::RemoveHead() 7
_CFAutoreleasePoolPush 7
non-virtual thunk to COOL::TProxiedSocket::OnDataAvailable(IInputStream*, IUnknown*) 7
pthreadmainnp 7
pthreadmutexlock 7
CFBasicHashFindBucket 6
COOL::TSocket::SocketMessageProc(unsigned int, void*, void*) 6
XPRT::TList<void*, XPRT::TDynamicTraits>::FreeNode(XPRT::TList<void*, XPRT::TDynamicTraits>::TNode*) 6
XPTL::CComObject<COOL::TProxiedSocket>::AddRef() 6
_CFRunLoopFinished 6
_MessageAvailable(void*) 6
__CFRunLoopFindMode 6
__gettimeofday 6
migget_replyport 6
objc_collectingEnabled 6
szonemalloc_shouldclear 6
XPRT::InternalGetMessage(void*, unsigned int&, void*&, void*&, bool) 5
XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::GetNode(void*, unsigned int&, unsigned int&, XPRT::TMap<void*, void*, XPRT::TDynamicKeyTraits, XPRT::TDynamicTraits>::TNode*&) const 5
XPTL::CComObject<COOL::TProxiedSocket>::Release() 5
dispatch_get_main_queue_port4CF 5
machport_insertmember 5
malloczonemalloc 5
operator delete(void*) 5
Sample analysis of process 517 written to file /dev/stdout -
When I run as root or normal User
zenity --notification --text="test"
The zenity process takes 100% Cpu time
System:
Arch 32bit gnome 2.22
Last edited by brickwedde.eu (2008-05-06 11:26:00)I GOT IT... I think.
zenity --notification actually calls libnotify! I was trying out a script and suddenly realized something, because by chance dbus decided to take a break. Take a look at these two code fragments.
$ zenity --info --text "hello"
$ _
$ zenity --notification --text "hello"
libnotify-Message: Unable to get session bus: Failed to connect to socket /tmp/dbus-jmMdFXbznS: Connection refused
<hang>
<100% CPU usage>
I've figured out why: it's basic socket programming gone wrong. The notification part of zenity calls libnotify, tries to connect to libnotify's socket, and fails, using 100% CPU waiting for the connection to... end a stream that never started.
A possible solution is to just use notify-send.
-dav7
Last edited by dav7 (2008-05-09 00:27:30) -
Hello,
I have a webapp running on Tomcat 5.0.28/RHEL 3.0. After some time (approximatively 1 hour), a java process take 100% cpu load and never stop, but the application do nothing.
Some detail on my configuration :
Distribution : Redhat Enterprise Linux 3.0 (updated)
Kernel 2.4.21-37.0.1.ELsmp
Glibc 2.3.2-95.37
JVM : JRockit 1.4.2.08 (the last one)
Tomcat : 5.0.28
Server : 2*Xeon 3GHz HT, 2Go RAM
JVM param : -Xmx:256m -Xms:256m
Thanks for your answers ...Try taking thread dump (send a SIGQUIT to JRockit using "kill"). If you
get a thread dump, the VM is alive, and it's probably your java program
that's broken. In that case, make a JRA recording to see what's happening:
http://e-docs.bea.com/jrockit/docs142/usingJRA/jra.html
The methods pane is probably what you're looking for.
If you don't get any thread dump when sending a SIGQUIT to JRockit,
come back here.
Regards //Johan
Gr?goire Rolland wrote:
Hello,
I have a webapp running on Tomcat 5.0.28/RHEL 3.0. After some time (approximatively 1 hour), a java process take 100% cpu load and never stop, but the application do nothing.
Some detail on my configuration :
Distribution : Redhat Enterprise Linux 3.0 (updated)
Kernel 2.4.21-37.0.1.ELsmp
Glibc 2.3.2-95.37
JVM : JRockit 1.4.2.08 (the last one)
Tomcat : 5.0.28
Server : 2*Xeon 3GHz HT, 2Go RAM
JVM param : -Xmx:256m -Xms:256m
Thanks for your answers ... -
Hello,
I'm wondering the best way to send a serial command when a button is pressed. Right now I have a while loop that checks if the button is pressed each time. If is is, it sends the serial command and adds the response to a text box via a shift register. If not, the original text box info is passed to the shift register. However, this loop takes 100% cpu (ok, only one core at 100% so technically %50), and I think its because the text box is getting overwriten every cycle. However, I'm not sure how else to do it. Attached is a print screen, let me know if you would like the file.
Thanks,
Eric
Solved!
Go to Solution.
Attachments:
loop1.png 42 KBAn event structure is the best way. The next best way is to simply put in a wait in the loop.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines -
I tried to add this in the topic already open but it kept sending me through the unending rabbit holes!
My question is: How do I figure out what release I was on, get rid of this one and got back to a functional firefox that moves in realtime. I already did all the reset and etc.... I just want to go back to the speed I had. This halting , hanging up misery of a browzer is Sad. I have had firefox for years and always recommended it ..... BUT NOT ANY MORE. I agree with the other poster ... there should be a rollback feature. Peoples time has value and right now FireFox is sucking the value down a rabbit hole.
See Below Comment Feedback submitted before I finally got here:
This new version of FireFox is making me nutz! It is SUCKING 100% CPU time almost constantly. I could just pull my hair out. I wpdated once a month or so ago and it slowed down..... but the latest update before I did the reset really slowed me down. I came here to fix it a couple of dayz ago and did the reset firefox and now it IS RUNNING SO POORLY AND SLOW I AM ABOUT TO KILL IT OFF MY MACHINE!!! Yes that is me yelling - and it happened in SSSSSSSSSSSSS LLLLLLLLL OOOOOOOO WWWWWWWWWW Motion. I have run all the security scans and cleanups ---this needs a fix ASAP!!! PS: The hang ups and slowness is EVERYWHERE I go. I only get speed doing programs not connected to ON LINE.Hello,
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
Did this fix your problems? Please report back to us!
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