Ldap search query takes more than 10 seconds

LDAP query takes more than 10 seconds to execute.
For validating the policy configured, the Acess Manager(Sun Java System Access Manager) contacts the LDAP (Sun Java System Directory Server 6.2) to get the users in a dynamic group. The time out value configured in Access Manager for LDAP searches is 10 seconds.
Issue : The ldap query takes more than 10 seconds to execute at some times .
The query is executing with less than 10 seconds in most of the cases, but it takes more than 10 seconds in some cases. The total number of users available in the ldap is less than 1500.
7 etime =1
6 etime =1
102 etime=4
51 etime=5
26 etime=6
5 etime=7
4 etime=8
From the ldap access logs we can see the following entry,some times the query takes more than 10 seconds,
[28/May/2012:14:21:26 +0200] conn=281 op=41433 msgId=853995 - SRCH base="dc=****,dc=****,dc=com" scope=2 filter="(&(&(***=true)(**=true))(objectClass=vfperson))" attrs=ALL
[28/May/2012:14:21:36 +0200] conn=281 op=41434 msgId=854001 - ABANDON targetop=41433 msgid=853995 nentries=884 etime=10
The query was aborted by the access manger after 10 seconds.
Please post your suggestions to resolve this issue .
1.How we can find out , why the query is taking more than 10 seconds ?
2.Next steps to resolve this issue .

Hi Marco,
Thanks for your suggestions.
Sorry for replying late. I was out of office for few weeks.
1) Have you already tuned the caches? (entry cache, db cache, filesystem cache?)
We are using db cache and we have not done any turning for cache. The application was working fine and there was no much changes in the number of users .
2) Unfortunately we don't have direct access to the environment and we have contacted the responsible team to verify the server health during the issue .
Regarding the IO operations we can see that, load balancer is pinging the ldap sever every 15 seconds to check the status of ldap servers which yields a new connection on every hit. (on average per minute 8 connections - )
3) We using cn=dsameuser to bind the directory server. Other configuration details for ldap
LDAP Connection Pool Minimum Size: 1
LDAP Connection Pool Maximum Size:10
Maximum Results Returned from Search: 1700
Search Timeout: 10
Is the Search Timeout value configured is proper ? ( We have less than 1500 user in the ldap server).
Also is there any impact if the value Maximum Results Returned from Search = set to 1700. ( The Sun document for AM says that the ideal value for this is 1000 and if its higher than this it will impact performance.
The application was running without time out issue for last 2 years and there was no much increase in the number of users in the system. ( at the max 200 users added to the system in last 2 years.)
Thanks,
Jay

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IChatAgent takes more than 100% of CPU

The iChatAgent takes more than 100% of CPU. It works normally for 10-15min with little CPU usage but then takes 100% of CPU and stays like that until I quit/kill the process. I tried waiting for hours to see it might go down is usage, but no, and the cpu fan remains on continuously.
I simply use it for text based chatting, and have disabled audio, video,microphone etc, and still this behavior that I can't use it for more than 15min.
Here is the iChat version: Version 5.0.3 (745)
Macbook Pro/10.6.4/Intel Core i7
I have tried removing ~/Library/preferences/com.apple.iChatAgent.plist as suggested elsewhere, and that hasn't helped either.

Thanks again Ralph.
No, I do not have any add-ons, just out-of-the-box ichat without any audio, video in use.
At this stage unfortunately, I can't continue using iChat as it hogs up the CPU in less than 15min. And that I do not experience any problem with other chat-clients such as AIM or jabber, so switching over to those until there is a resolution.
Suhas
Here is a process-inspection done through ActivityMonitor when it was taking 100%:
Sampling process 517 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling iChatAgent (pid 517) every 1 millisecond
Call graph:
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

What is the reason for query take more time to execute

Hi,
What is the reason for the query take more time inside procedure.
but if i execute that query alone then it excute within a minutes.
query includes update and insert.

I have a insert and update query when I execute
without Procedure then that query execute faster but
If I execute inside procedure then It takes 2 hours
to execute.Put you watch 2 hours back and the problem will disappear.
do you understand what I want to say?I understood what you wanted to say and I understood you didn't understood what I said.
What does the procedure, what does the query, how can you say the query does the same as the procedure that takes longer. You didn't say anything useful to have an idea of what you're talking about.
Everyone knows what means that something is slower than something else, but it means nothing if you don't say what you're talking about.
To begin with something take a look at this
When your query takes too long ...
especially the part regarding the trace.
Bye Alessandro

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