How to access variuus database servers at the same time.
Hi All,
Here, i've to access more than one databse servers at the same time.
i've to fetch some data from AS400, and some from MS-Access and SQL-server. The problem is this should be done at the same time.
What should i do. Plz. help.
Thx. in advance.
what is exactly "at the same time"
what could prevent you from opening multiple connections?
Similar Messages
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Singletons running on two servers at the same time
Hello,
we faced one interesting situation with our application, running on clustered BEA Weblogic 9.2. We implemented some Singletons (ie. Singleton Service in a Weblogic cluster) and they are running fine. Most of the time.
Common scenarios: cluster is started -> the singletons run on one server; the server is brought down -> the singletons are started on the second server.
However, we had recently two situations where the Singletons started on both servers! Here they are:
1) We use Database Migration Basis and we have a dedicated table for Weblogic to capture current state of the singletons. Due to the fact that database (Oracle RAC) was partially available one of the Managed Server could not get the lease and probably assumed that no singleton is running, therefore started the singletons locally.
2) Network outage: we had several minutes where none of our servers could communicate between them (neither between SASU MS nor with the database). Consequence: each MS decided to start the singleton locally (after some time, which I assume is the waiting time). Once the network came back the servers could communicate again but the duplicate singletons are not deactivate, so they are running in parallel.
Anyone experienced the same or similar issues? How to prevent the above? Is the Consensus Migration Basis a better choice? (I think yes for #1 but not for situation #2).
Any helpful answer is appreciated.
Thank you, best regards,
Remus.In general its not a good idea. Running PSConfig will try to establish a lock on the configuration database. Doing that from two servers at the same time may cause the update to fail.
Paul Stork SharePoint Server MVP
Principal Architect: Blue Chip Consulting Group
Blog: http://dontpapanic.com/blog
Twitter: Follow @pstork
Please remember to mark your question as "answered" if this solves your problem. -
How many threads can be running at the same time
Hi!!
Dows anyone knows how many Threads can be running at the same time in the JVM.
I'm making a multi thread client-server app and I would like to know how much simultneous connections the JVM support. I'm using one Thread per connection.Hi, thanks to all for your answers.
I think that I made the wrong question, as you said: "that means the number of threads currently created".
I'm worry about this because my application is already online (It's a mail server -SMTP and POP3 server using ORACLE for the users database- ) and some other user post in the "multi-tread forum" that almost any JVM can only have 700 threads created at the same time, and I've never heard or read anything about this.
what you mean with the stack space (memory??)
I'm using the JavaWebServer 2.0 and a servlet to start the main Thread.
Again Thanks to all for the answers but I think that the schapel answer is the one that solve my doubt... -
Hi, we are running
Windows MultiPoint Server 2011 on 4 Dell 9010 machines and 45 Wyse E02 clients connected by 4 switches. Every week we got 2 or 3 random BSoD for all servers at the same time. Memory dump for server 2,3,4 show that the exception is from NUServer64.sys.
Please check below for the system event logs and memory dump analysis output. Any help would be appreciated!
server1:
Warning 11/17/2013 8:55:52 PM
e1cexpress 27
None
Critical 11/17/2013 8:55:48 PM
Kernel-Power 41
(63)
Error 11/17/2013 8:56:08 PM
BugCheck 1001
None
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000001e (0xffffffffc0000005, 0x0000000000000000, 0x0000000000000008, 0x0000000000000000). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 111813-19765-01.
Error 11/17/2013 8:56:03 PM
EventLog 6008
None
The previous system shutdown at 12:53:40 on 2013/11/18 was unexpected.
Error 11/17/2013 6:55:49 PM
Disk 11
None
The driver detected a controller error on \Device\Harddisk2\DR2.
Error 11/17/2013 6:55:48 PM
Disk 11
None
The driver detected a controller error on \Device\Harddisk2\DR2.
Warning 11/17/2013 3:42:08 PM
Microsoft-Windows-TerminalServices-Licensing
18 None
server2:
Warning 11/17/2013 8:55:39 PM
e1cexpress 27
None
Critical 11/17/2013 8:55:31 PM
Kernel-Power 41
(63)
Error 11/17/2013 8:55:52 PM
BugCheck 1001
None
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000007e (0xffffffffc0000005, 0xfffff80002c80166, 0xfffff880023397e8, 0xfffff88002339040). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 111813-17518-01.
Error 11/17/2013 8:55:44 PM
EventLog 6008
None
The previous system shutdown at 12:53:53 on 2013/11/18 was unexpected.
Warning 11/17/2013 7:16:07 PM
NUServer64 3
None
server3:
Warning 11/17/2013 8:55:38 PM
Microsoft-Windows-TerminalServices-Licensing
18 None
Error 11/17/2013 8:55:31 PM
BugCheck 1001
None
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000004e (0x000000000000009a, 0x0000000000417c94, 0x0000000000000006, 0x0000000000000002). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 111813-9937-01.
Warning 11/17/2013 8:55:24 PM
e1cexpress 27
None
Critical 11/17/2013 8:55:21 PM
Kernel-Power 41
(63)
Error 11/17/2013 8:55:27 PM
EventLog 6008
None
The previous system shutdown at 12:53:49 on 2013/11/18 was unexpected.
server4:
Warning 11/17/2013 8:55:33 PM
Microsoft-Windows-TerminalServices-Licensing
18 None
Warning 11/17/2013 8:55:09 PM
e1cexpress 27
None
Critical 11/17/2013 8:55:05 PM
Kernel-Power 41
(63)
Error 11/17/2013 8:55:25 PM
BugCheck 1001
None
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000000a (0x0000000100000001, 0x0000000000000002, 0x0000000000000001, 0xfffff8000328abe6). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 111813-14055-01.
Error 11/17/2013 8:55:14 PM
EventLog 6008
None
The previous system shutdown at 12:53:21 on 2013/11/18 was unexpected.
Error 11/17/2013 8:51:47 PM
NUServer64 4
None
\Device\NUServer_995D6600
<995D6600_3> Disconnect fail.
Error 11/17/2013 8:51:47 PM
NUServer64 4
None
\Device\NUServer_995D6600
<995D6600_3> Connect fail.
Warning 11/17/2013 8:51:47 PM
NUServer64 3
None
\Device\NUServer_995D6600
<995D6600_3> Connect time-out.
Warning 11/17/2013 8:50:00 PM
NUServer64 3
None
\Device\NUServer_995B9000
<995B9000_3> Hi-Perf socket active clear.
Error 11/17/2013 8:49:25 PM
NUServer64 4
None
\Device\NUServer_995D6600
<995D6600_3> Disconnect fail.
Error 11/17/2013 8:49:25 PM
NUServer64 4
None
\Device\NUServer_995D6600
<995D6600_3> Connect fail.
Warning 11/17/2013 8:49:25 PM
NUServer64 3
None
\Device\NUServer_995D6600
<995D6600_3> Connect time-out.Memory dumps:
server1:
2: kd> !analyze -v
* Bugcheck Analysis *
KMODE_EXCEPTION_NOT_HANDLED (1e)
This is a very common bugcheck. Usually the exception address pinpoints
the driver/function that caused the problem. Always note this address
as well as the link date of the driver/image that contains this address.
Arguments:
Arg1: ffffffffc0000005, The exception code that was not handled
Arg2: 0000000000000000, The address that the exception occurred at
Arg3: 0000000000000008, Parameter 0 of the exception
Arg4: 0000000000000000, Parameter 1 of the exception
Debugging Details:
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
FAULTING_IP:
+3031623733386137
00000000`00000000 ?? ???
EXCEPTION_PARAMETER1: 0000000000000008
EXCEPTION_PARAMETER2: 0000000000000000
WRITE_ADDRESS: 0000000000000000
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
BUGCHECK_STR: 0x1E_c0000005
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: System
CURRENT_IRQL: 0
TRAP_FRAME: fffff8800c744860 -- (.trap 0xfffff8800c744860)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=0000000000000000
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=0000000000000000 rsp=fffff8800c7449f0 rbp=0000000000000000
r8=0000000000000000 r9=0000000000000f44 r10=fffff80003602000
r11=0000000000000358 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei ng nz na pe nc
00000000`00000000 ?? ???
Resetting default scope
LAST_CONTROL_TRANSFER: from fffff800036c2738 to fffff80003677bc0
STACK_TEXT:
fffff880`0c743fd8 fffff800`036c2738 : 00000000`0000001e ffffffff`c0000005 00000000`00000000 00000000`00000008 : nt!KeBugCheckEx
fffff880`0c743fe0 fffff800`03677242 : fffff880`0c7447b8 00000000`00000030 fffff880`0c744860 00000000`00000000 : nt! ?? ::FNODOBFM::`string'+0x487ed
fffff880`0c744680 fffff800`03675dba : 00000000`00000008 00000000`00000000 00000009`00000000 00000000`00000030 : nt!KiExceptionDispatch+0xc2
fffff880`0c744860 00000000`00000000 : 00000000`00000030 ffffffff`fffe7960 00000000`00000000 00000000`00000000 : nt!KiPageFault+0x23a
STACK_COMMAND: kb
FOLLOWUP_IP:
nt! ?? ::FNODOBFM::`string'+487ed
fffff800`036c2738 cc int 3
SYMBOL_STACK_INDEX: 1
SYMBOL_NAME: nt! ?? ::FNODOBFM::`string'+487ed
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 521ea035
FAILURE_BUCKET_ID: X64_0x1E_c0000005_nt!_??_::FNODOBFM::_string_+487ed
BUCKET_ID: X64_0x1E_c0000005_nt!_??_::FNODOBFM::_string_+487ed
Followup: MachineOwner
server2:
0: kd> !analyze -v
* Bugcheck Analysis *
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (7e)
This is a very common bugcheck. Usually the exception address pinpoints
the driver/function that caused the problem. Always note this address
as well as the link date of the driver/image that contains this address.
Arguments:
Arg1: ffffffffc0000005, The exception code that was not handled
Arg2: fffff80002c80166, The address that the exception occurred at
Arg3: fffff880023397e8, Exception Record Address
Arg4: fffff88002339040, Context Record Address
Debugging Details:
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
FAULTING_IP:
nt!KeSetEvent+16
fffff800`02c80166 f6037f test byte ptr [rbx],7Fh
EXCEPTION_RECORD: fffff880023397e8 -- (.exr 0xfffff880023397e8)
ExceptionAddress: fffff80002c80166 (nt!KeSetEvent+0x0000000000000016)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 0000000000000000
Parameter[1]: 000000010f7f0a50
Attempt to read from address 000000010f7f0a50
CONTEXT: fffff88002339040 -- (.cxr 0xfffff88002339040)
rax=0000000000000000 rbx=000000010f7f0a50 rcx=0000000000000001
rdx=0000000000000000 rsi=fffffa800f7ec050 rdi=fffffa800f7ec1a0
rip=fffff80002c80166 rsp=fffff88002339a20 rbp=000000010f7f0a50
r8=0000000000000000 r9=0000000000000150 r10=fffff80002c06000
r11=fffff88002339a30 r12=0000000000000000 r13=fffffa800de82220
r14=fffffa800f7f0ae0 r15=0000000000000002
iopl=0 nv up ei ng nz na pe nc
cs=0010 ss=0000 ds=002b es=002b fs=0053 gs=002b efl=00010282
nt!KeSetEvent+0x16:
fffff800`02c80166 f6037f test byte ptr [rbx],7Fh ds:002b:00000001`0f7f0a50=??
Resetting default scope
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: System
CURRENT_IRQL: 0
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
EXCEPTION_PARAMETER1: 0000000000000000
EXCEPTION_PARAMETER2: 000000010f7f0a50
READ_ADDRESS: 000000010f7f0a50
FOLLOWUP_IP:
NUServer64+65f1
fffff880`0ab8c5f1 488b6c2448 mov rbp,qword ptr [rsp+48h]
BUGCHECK_STR: 0x7E
LAST_CONTROL_TRANSFER: from fffff8800ab8c5f1 to fffff80002c80166
STACK_TEXT:
fffff880`02339a20 fffff880`0ab8c5f1 : 00000000`000003f0 00000001`00000000 fffffa80`0f7ec000 00000000`00000500 : nt!KeSetEvent+0x16
fffff880`02339a90 fffff880`0ab8c8aa : fffffa80`0f7ec1a0 fffffa80`0f7eeb0c fffffa80`0f7ee2c8 00000000`00000002 : NUServer64+0x65f1
fffff880`02339ad0 fffff800`02f721d3 : fffffa80`0f7f0ae0 fffffa80`0f7ec260 fffffa80`0f7ec050 fffffa80`0c72e040 : NUServer64+0x68aa
fffff880`02339b40 fffff800`02c85261 : fffff800`02e21200 fffff800`02f72101 fffffa80`0c72e000 00000000`00000000 : nt!IopProcessWorkItem+0x23
fffff880`02339b70 fffff800`02f182ea : 501a7d4d`a14dcd79 fffffa80`0c72e040 00000000`00000080 fffffa80`0c70b6f0 : nt!ExpWorkerThread+0x111
fffff880`02339c00 fffff800`02c6c8e6 : fffff880`01f42180 fffffa80`0c72e040 fffff880`01f4d0c0 9ae0ec34`00b81aae : nt!PspSystemThreadStartup+0x5a
fffff880`02339c40 00000000`00000000 : fffff880`0233a000 fffff880`02334000 fffff880`02339370 00000000`00000000 : nt!KiStartSystemThread+0x16
SYMBOL_STACK_INDEX: 1
SYMBOL_NAME: NUServer64+65f1
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: NUServer64
IMAGE_NAME: NUServer64.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 4f66a064
STACK_COMMAND: .cxr 0xfffff88002339040 ; kb
FAILURE_BUCKET_ID: X64_0x7E_NUServer64+65f1
BUCKET_ID: X64_0x7E_NUServer64+65f1
Followup: MachineOwner
server3:
0: kd> !analyze -v
* Bugcheck Analysis *
PFN_LIST_CORRUPT (4e)
Typically caused by drivers passing bad memory descriptor lists (ie: calling
MmUnlockPages twice with the same list, etc). If a kernel debugger is
available get the stack trace.
Arguments:
Arg1: 000000000000009a,
Arg2: 0000000000417c94
Arg3: 0000000000000006
Arg4: 0000000000000002
Debugging Details:
BUGCHECK_STR: 0x4E_9a
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: System
CURRENT_IRQL: 0
LAST_CONTROL_TRANSFER: from fffff80002d629ef to fffff80002cd3bc0
STACK_TEXT:
fffff880`14417968 fffff800`02d629ef : 00000000`0000004e 00000000`0000009a 00000000`00417c94 00000000`00000006 : nt!KeBugCheckEx
fffff880`14417970 fffff800`02e0403b : fffff880`14417a08 fffffa80`10cd1b88 fffff880`144179e0 00000000`000005a0 : nt!MiBadRefCount+0x4f
fffff880`144179b0 fffff800`02e078a7 : fffffa80`12894000 00000000`00000000 fffff6fb`7ea004a0 fffff800`00000001 : nt!MiFreePoolPages+0xa8b
fffff880`14417ac0 fffff880`0ad8d07a : 00000000`00000003 fffffa80`0f4471a0 fffffa80`36747345 fffffa80`00000000 : nt!ExFreePoolWithTag+0x7c7
fffff880`14417b70 fffff800`02f702ea : fffffa80`10cd1a80 00000000`00000080 fffffa80`0c70a740 003f005c`005c0000 : NUServer64+0x1707a
fffff880`14417c00 fffff800`02cc48e6 : fffff800`02e4ee80 fffffa80`10cd1a80 fffff800`02e5ccc0 00310026`00330023 : nt!PspSystemThreadStartup+0x5a
fffff880`14417c40 00000000`00000000 : fffff880`14418000 fffff880`14412000 fffff880`144174b0 00000000`00000000 : nt!KiStartSystemThread+0x16
STACK_COMMAND: kb
FOLLOWUP_IP:
NUServer64+1707a
fffff880`0ad8d07a 440f20c0 mov rax,cr8
SYMBOL_STACK_INDEX: 4
SYMBOL_NAME: NUServer64+1707a
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: NUServer64
IMAGE_NAME: NUServer64.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 4f66a064
FAILURE_BUCKET_ID: X64_0x4E_9a_NUServer64+1707a
BUCKET_ID: X64_0x4E_9a_NUServer64+1707a
Followup: MachineOwner -
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Hi - we are updating an 8 server farm with a CU and in order to reduce downtime I am wondering whether it is supported/risky to run PSConfig on multiple SharePoint servers at the same time
I plan to run the first one by itself - then after that set 7 off at the same time
In the past I have always run them serially just to be cautious but there is pressure to reduce downtime so I want to know if there is any risk in running them simultaneously
Thanks!
JIn general its not a good idea. Running PSConfig will try to establish a lock on the configuration database. Doing that from two servers at the same time may cause the update to fail.
Paul Stork SharePoint Server MVP
Principal Architect: Blue Chip Consulting Group
Blog: http://dontpapanic.com/blog
Twitter: Follow @pstork
Please remember to mark your question as "answered" if this solves your problem. -
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