SUN JES 8.1 Q2UR2: Long time taken in getting database connection.
Application server registered intermittent slowness in getting database connection from javax.sql.DataSource. Based on the following JMX value, the application servers still haven�t reached the threshold. Its identified the slowness was due to application server performing validation (select count(*) from dual).
Sample code:
ds.getConnection(username, password); // where DS is the javax.sql.DataSource
Network
It is observed that the bi-directional ping stats showed that the response time < 1.19 ms. Network Switch port utilisation was <30% and there were no errors and collision detected.
Database
Based on oracle database statspack, it showed that the database is healthy. On top of that, the following query was scheduled to be executed every second to monitor Select count(*) from dual elapsed time.
select sess.sid, sess.serial#, sess.client_info, sess.program, sql.sql_text, sql.elapsed_time from V$SESSION sess, V$SQL sql where sess.sql_hash_value=sql.hash_value and upper(sql.sql_text) like 'SELECT COUNT(*) FROM DUAL' order by sess.sid
Basically this query will capture the cumulative elapsed time per session id. This query is able to caption �Select count(*) from dual� that ran more than 2 seconds.
Example 1 � how the cumulative elapsed time registered in the log:
2006_11_02_16_53_55,Connection 1, SID 1 perform a select count(*) from dual. Oracle registered elapsed time 10 ms.
2006_11_02_16_53_55,Connection 2, SID 2 perform a select count(*) from dual. Oracle registered elapsed time 10 ms.
2006_11_02_16_54_57,Connection 1, SID 1 perform a select count(*) from dual. Oracle registered elapsed time 20 ms.
2006_11_02_16_54_58,Connection 1, SID 1 perform a select count(*) from dual. Oracle registered elapsed time 30 ms.
2006_11_02_16_54_58,Connection 2, SID 2 perform a select count(*) from dual. Oracle registered elapsed time 20 ms.
Example 2 � If query ran more than 2 sec:
2006_11_02_16_53_55,Connection 1, SID 1 perform a select count(*) from dual. Oracle registered elapsed time 10 ms.
2006_11_02_16_53_57,Connection 1, SID 1 perform a select count(*) from dual. Oracle registered elapsed time 20 ms.
2006_11_02_16_54_57,Connection 1, SID 1 perform a select count(*) from dual. Oracle registered elapsed time 2030 ms. << if query that ran more than 2 secs, there will be a sudden jump of 2 secs in the subsequent cumulative elapsed time.
Previously based on jmx log, it do registered 10k connections was acquired in 1 second and only 6 active connections was used. If same connection was used and on the same second, the cumulative elapsed time will registered in the log. The longest elapsed time that registered in 2 Nov 2006 01:00 pm to 05:00 pm logs was 800 ms but long get database connection still registered 5 to 7 seconds.
Questions:
1) Is it possible that I can use dtrace to capture the bottleneck?
System information:
Oracle:
DriverVersion: [10.2.0.1.0]
DriverMajorVersion: [10]
DriverMinorVersion: [2]
DriverName: [Oracle JDBC driver]
URL: [jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST= (ADDRESS=(PROTOCOL = TCP) (HOST = XXXXXX) (PORT = 1524)) (ADDRESS=(PROTOCOL = TCP) (HOST = XXXXXX) (PORT = 1524))) (CONNECT_DATA = (SID = CP_P)) (source_route=yes))]
UserName: [CP_P1]
Database Product Name: [Oracle]
Database Product Version: [Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.6.0 - Production]
Database Product Major: [9]
Database Product Minor: [2]
Drivers: Type 4
JDK
JDBC Major: [10]
JDBC Minor: [2]
The JDK version is 1.5.0_02
SUN JES Application Server
Sun Java System Application Server Enterprise Edition 8.1_02 running under solaris 10
Massive Crossposting:
http://forum.java.sun.com/thread.jspa?threadID=790473&messageID=4491822#4491822
http://forum.java.sun.com/thread.jspa?threadID=790472&messageID=4491819#4491819
http://forum.java.sun.com/thread.jspa?threadID=790471&messageID=4491817#4491817
http://forum.java.sun.com/thread.jspa?threadID=790470&messageID=4491816#4491816
http://forum.java.sun.com/thread.jspa?threadID=790469&messageID=4491815#4491815
http://forum.java.sun.com/thread.jspa?threadID=790468&messageID=4491814#4491814
http://forum.java.sun.com/thread.jspa?threadID=790466&messageID=4491812#4491812
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SUN JES 8.1 Q2UR2: Intermittently application server jvm crashed.
Application server jvm intermittently crashed but due to the feature in SUN JES 8.1 ur2 the application server will auto restarts the service. Most of the JVM crashes were due to memory corruption.
The following are SUN findings:
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System information:
Oracle:
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DriverMinorVersion: [2]
DriverName: [Oracle JDBC driver]
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SUN JES Application Server
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JVM crashes were due to memory corruption.
And how do you know that?
csgan97: Based on sun support input where its due to either trying to read or write to a memory (pblock) that causes the crash.
could identify as a pblock issue
----------------- lwp# 102 / thread# 102 -------------------- fef40f90 lwpkill (6, 0, fef24a98, ffffffff, fef68284, 6) + 8
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# C [libns-httpd40.so+0x308fc] pblock_kpinsert+0x17c #
The following are SUN findings:Meaning Sun (the company) and not you or someone else determined this?
csgan97: From Sun support engineer
1) Multithreading issue that causes 2 threads writing
on the same memory blockSo? That might indicate a bug in your code. By itself it doesn't mean that it caused the crash.
csgan97: If there is a bug, we would like to identify it. All findings are hypothesis and we still dont have evident to really prove that is multithreading issue. Is it possible to use dtrace to track?
2) Based on dtrace, it indicated that there was a
race condition happens but the jvm doesn�t crash
during the occurrence.Again so? I wouldn't expect that to cause a crash.
csgan97: Why? During the jvm crashed, the dtrace monitoring doesnt indicate any race condition. It only indicated twice but during that time the jvm doesnt crash.
DriverName: [Oracle JDBC driver]
URL: [jdbc:oracle:thinIf it is memory corruption then it would be a JVM bug not this driver because it is java only.
If you have any JNI or 3rd party libraries that use JNI then those are the most likely source.
csgan97: A far as we know there isnt any JNI or 3rd party libraries that use JNI. -
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@BALAHi,
To understand more about the issue, I’d like to confirm the following information:
1. What’s your Exchange 2010 version?
http://support.microsoft.com/kb/2536517/en-us
2. Do you install other software, like SQL, on the same Exchange Server?
3. Change another admin account to access EMS.
Thanks,
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TechNet Community Support -
Long time taken to fetch data from Database Table
Moved to correct forum by moderator.
I had a requirement where i need to fetch records from table A912 for the matching entries in an internal table and satisfying some conditions.
The Internal Table(it_out) has 1,206 entries, while Databse table(A912) has 9,758,234 entries.
The Structure of Internal Table and Select Query are,
TYPES : BEGIN OF ty_a912,
matnr LIKE a912-matnr, "Material
kunwe LIKE a912-kunwe, "Ship-to party
datbi LIKE a912-datbi, "Validity end dt
datab LIKE a912-datab, "Validity start
knumh LIKE a912-knumh, "Cond rec no.
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TYPES : BEGIN OF ty_out,
erdat LIKE vbak-erdat, "Date
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fkdat LIKE vbkd-fkdat, "Billing Date
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matnr LIKE vbap-matnr, "Material
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zcarp LIKE konv-kbetr, "ZCAR Price
zrfcp LIKE konv-kbetr, "ZRFC Price
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ctrnm TYPE char80, "Contract Name
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SELECT
matnr kunwe datbi datab knumh
FROM a912
INTO TABLE t_a912
FOR ALL ENTRIES IN t_out
WHERE matnr EQ t_out-matnr
AND kunwe EQ t_out-kunnr
AND datbi GE t_out-fkdat
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Please suggest some valid solution for this issue.
Edited by: Matt on Dec 3, 2008 10:08 AMPrabhakar Manoharan wrote:>
> Moved to correct forum by moderator.
>
> I had a requirement where i need to fetch records from table A912 for the matching entries in an internal table and satisfying some conditions.
> The Internal Table(it_out) has 1,206 entries, while Databse table(A912) has 9,758,234 entries.
>
Hi,
can you give us an SQL trace in ST05? The SQL Trace (ST05) Quick and Easy
The FAE will be processed in a special way: see https://forums.sdn.sap.com/click.jspa?searchID=-1&messageID=6630311
If an index is NOT supported the FAE part will take forever...
if t_out is filled by another table you may go for a join? But again, index support is the key
bye
yk
Edited by: YukonKid on Dec 4, 2008 10:31 AM -
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Any thoughts? Thanks in advance!Maybe try this, i am not sure that it will resolve the problem, but it is worth trying anyways.
http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/eef49e64-157c-4082-8e80-52e48309691f
Hi All,
I've seen this problem multiple times, especially with Windows 7 64-bit versions and Enterprise edition. The source of the problem appears to be the Bonjour service that is installed in the background and set to "Automatic" when installing certain 3rd
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The solution in most of the cases I've come across has been to stop and disable the Bonjour service. The Bonjour service also masquerades as a service with a name of the format "##Id_String1.6844F930_blahblahblah". Here's how to disable this service
in Windows 7:
Right-Click on Computer > Select 'Manage'
Expand the 'Services and Applications' section in the bottom of the Left-Nav dialog and Select 'Services'
Sort the Services list by name and look for either "Bonjour" or the "##Id_String..." name mentioned above
Right-Click on the service and select 'Properties'
Click the 'Stop' button to stop the service
Select 'Disabled' from the 'Startup type' drop down list
Click 'Apply' and then 'OK'
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Hope this helps.
cheers,
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Time to upgrade: Long time Apple user, get the Iphone 4 or Droid 3???
Hello,
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Tony1790 wrote:
Hello,
It's time to upgrade to a new phone for both me and the wife, she needs a new phone now as her LG env3 is acting up. I'm a looong time Apple user, and of course the Apple iphone is a natural to pick, however It'll cost $350 for 2 when we use the last $50 credit for new/every 2. The new Droid 3 looks very interesting and we can get 2 for $149 for both with the credit and the BOGO sale going on.
So which should we get, mainly use the phone for talk, texting and will of course check emails, etc once we get a smart phone. The Env3's we have now are good at texting with the keyboard and of course good for talking.
If we go for the Apple, I could get her the iphone 4 for her and I can wait for the iphone 5 if it's actually coming out this year.
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MBP takes long time to restore wired network connection after wake-up
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My Mid-2010 MBP (MacBookPro6,2) has been experiencing this problem recently -- Whenever I wake up the computer from sleep, it needs approximately 10 seconds to restore its wired network connection. I know there are other annoying connection issues with MBP's WiFi/AirPort out there, but I'm talking about the wired connection here.
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http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/eef49e64-157c-4082-8e80-52e48309691f
Hi All,
I've seen this problem multiple times, especially with Windows 7 64-bit versions and Enterprise edition. The source of the problem appears to be the Bonjour service that is installed in the background and set to "Automatic" when installing certain 3rd
party applications. Apple applications like iTunes and Adobe applications like Acrobat Professional and Creative Suites have been known to cause this problem. I've also seen virtualization software like VMWare and VirtualBox cause similar issues
with network adapters.
The solution in most of the cases I've come across has been to stop and disable the Bonjour service. The Bonjour service also masquerades as a service with a name of the format "##Id_String1.6844F930_blahblahblah". Here's how to disable this service
in Windows 7:
Right-Click on Computer > Select 'Manage'
Expand the 'Services and Applications' section in the bottom of the Left-Nav dialog and Select 'Services'
Sort the Services list by name and look for either "Bonjour" or the "##Id_String..." name mentioned above
Right-Click on the service and select 'Properties'
Click the 'Stop' button to stop the service
Select 'Disabled' from the 'Startup type' drop down list
Click 'Apply' and then 'OK'
Reboot your machine and see if the "Multiple Networks" issue is resolved. If so, you should have internet connectivity again.
Hope this helps.
cheers,
Aaron -
system is running windows 7, ATT DSL .
Maybe try this, i am not sure that it will resolve the problem, but it is worth trying anyways.
http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/eef49e64-157c-4082-8e80-52e48309691f
Hi All,
I've seen this problem multiple times, especially with Windows 7 64-bit versions and Enterprise edition. The source of the problem appears to be the Bonjour service that is installed in the background and set to "Automatic" when installing certain 3rd
party applications. Apple applications like iTunes and Adobe applications like Acrobat Professional and Creative Suites have been known to cause this problem. I've also seen virtualization software like VMWare and VirtualBox cause similar issues
with network adapters.
The solution in most of the cases I've come across has been to stop and disable the Bonjour service. The Bonjour service also masquerades as a service with a name of the format "##Id_String1.6844F930_blahblahblah". Here's how to disable this service
in Windows 7:
Right-Click on Computer > Select 'Manage'
Expand the 'Services and Applications' section in the bottom of the Left-Nav dialog and Select 'Services'
Sort the Services list by name and look for either "Bonjour" or the "##Id_String..." name mentioned above
Right-Click on the service and select 'Properties'
Click the 'Stop' button to stop the service
Select 'Disabled' from the 'Startup type' drop down list
Click 'Apply' and then 'OK'
Reboot your machine and see if the "Multiple Networks" issue is resolved. If so, you should have internet connectivity again.
Hope this helps.
cheers,
Aaron -
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After updating to Firefox 3.6 and attempting to follow the link to update Flash player (the link was broken), Firefox began to work VERY slowly. I closed the browser and, when I tried to open it again, it took in excess of 30 minutes to open, which it finally did. However, while it was initially able to open some websites (google.com), it reached the point of being unable to open anything at all.
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Pbms w T400 after bios update: long time to boot, TPM&internet connect pbms
Hello,
I have a T400 thinkpad, type 7417 that I bought in the US in Nov 2008 (it was downgraded from vista to xp). In November 2011 the computer was running slow so I decided to clean it up a bit and then do the maintenance recommended by the thinkvantage program. I proceeded to do all the smaller updates and the last one that was recommended was updating the BIOS (from what I understood). I left the computer doing these updates overnight, making sure it was plugged into a power source as specified by the update.
The next morning I found that my computer took 5-10minutes to start up and when it did, the screen resolution was altered as if it was in safe mode or something…I removed the HD and saved my data, then tried to use the Rescue and Recovery program to revert to factory settings. Although it seems that the factory settings were indeed restored I still have many problems with the computer. 1. it takes 5-10min to start (blank screen pre-windows logo) 2. it gives me 2 error messages once it has booted: 2a. "Tvttcsd application has encountered a pbm and needs to close." 2b. "There was a pbm connecting to the tpm (security devie) on this computer. It is possible that anti-virus or firewall software is blocking the connection. A missing or disabled driver could also cause this problem. Please refer to the online documentation for more information." 3. it cannot connect to the internet (either wifi or ethernet) 4. Ad-aware tells me it detects a malicious program running but cannot seem to clear it. I have seen several threads about these problems but cannot figure out if they are all connected or not. Before touching anything I was hoping for some help on how to proceed - I am no expert but I can follow instructions I am currently running avast on the computer to hopefully get rid of whatever viruses there may be and see if that can solve the problem. All help is really really welcome please!!!! lore
Solved!
Go to Solution.lore schrieb:
"There was a pbm connecting to the TPM (security device) on this computer. It is possible that anti-virus or firewall software is blocking the connection. A missing or disabled device driver could also cause the pbm. Refer to oline docs for more info."
When I try to look into the Windows firewall I get the following error message:
"Cannot start Windows firewall/internet connection sharing service."
Not sure if both of these are related or not. Any ideas? Would re-installing windows help?
Thanks so much for your help! lore
Did you "optimize" your computer with "Tuneup utilities"? This might cause problems like that.
Also check, whether the services "Windows Firewall" is set to start "Automatic" and running.
Third party desktop-firewall like Zonealarm, Kaspersky or Symantec Internet Security also can cause that problem. In that case remove it including all policies, test the connection and re-install it. Activate training-mode and disallow automatic blocking unknown outgoing connections.
My home-forum: http://www.thinkpad-forum.de
Wiki: Deutsches ThinkPad-Wiki English ThinkWiki
My ThinkPad-Collection -
BPM Process chain takes long time to process
We have BI7, Netweaver 2004s on Oracle and SUN Solaris
There is a process chain (BPM) which pulls data from the CRM system into BW. The scheduled time to run this chain is 0034 hrs. This chain should ideally complete before / around 0830 Hrs. <b>Now the problem is that every alternate day this chain behaves normally and gets completed well before 0830 hrs but every alternate day this chain fails </b> there are almost 40 chains running daily. Some are event triggered (dependent with each other) or some run in parallel. In this, (BPM) process chain, usually there are 5 requests with 3 Delta and 2 full uploads (Master Data). The delta uploads finishes in 30 minutes without any issues with very few record transfers. The first full upload is from 0034 hrs to approximately 0130 hrs and the 2nd upload is from 0130 hrs to 0230 hrs. Now if the 1st upload gets delayed then the people who are initiating these chains, stop the 2nd full upload and continue it after all the process chains are completed. Now this entire BPM process chain sometimes takes 17 -18 hrs to complete!!!!!
No other loads in CRM or BW when these process chains are running
CRM has background jobs to push IDOCS to BW which run every 2 minutes which runs successfully
Yesterday this chain got completed successfully (well within stipulated time) with over 33,00,000 records transferred but sometimes it has failed to transfer even 12,00,000 records!!
Attaching a zip file, please refer the 21 to 26 Analysis screen shot.doc from the zip file
Within the zip file, attaching Normal timings of daily process chains.xls the name explains it .
Also within the zip file refer BPM Infoprovider and data source screen shot.doc please refer this file as the infopackage (page 2) which was used in the process chain is not displayed later on in page number 6 BUT CHAIN GOT SUCESSFULLY COMPLETED
We have analyzed:--
1) The PSA data for BPM process chain for past few days
2) The info providers for BPM process chain for past few days
3) The ODS entries for BPM process chain for past few days
4) The point of failure of BPM process chain for past few days
5) The overall performance of all the process chains for past few days
6) The number of requests in BW for this process chain
7) The load on CRM system for past few days when this process chain ran on BW system
As per our analysis, there are couple of things which can be fixed in the BW system:--
1) The partner agreement (transaction WE20) defined for the partner LS/BP3CLNT475 mentions both message types RSSEND and RSINFO: -- collect IDOCs and pack size = 1 Since the pack size = 1 will generate 1 TRFC call per IDOC, it should be changed to 10 so that less number of TRFCs will be generated thus less overhead for the BW server resulting in the increase in performance
2) In the definition of destination for the concerned RFC in BW (SM59), the Technical Setting tab says the Load balancing option = No. We are planning to make it Yes
But we believe that though these changes will bring some increase in performance, this is not the root cause of the abnormal behavior of this chain as this chain runs successfully on every alternate day with approximately the same amount of load in it.
I was not able to attach the many screen shots or the info which I had gathered during my analysis. Please advice how do I attach these files
Best Regards,Hi,
Normally index creation or deletion can take long time in case your database statistics are not updated properly, so can check stat after your data loading is completed and index generation is done, Do creation of database statistics.
Then try to recheck ...
Regards,
Satya -
Oracle SQL Select query takes long time than expected.
Hi,
I am facing a problem in SQL select query statement. There is a long time taken in select query from the Database.
The query is as follows.
select /*+rule */ f1.id,f1.fdn,p1.attr_name,p1.attr_value from fdnmappingtable f1,parametertable p1 where p1.id = f1.id and ((f1.object_type ='ne_sub_type.780' )) and ( (f1.id in(select id from fdnmappingtable where fdn like '0=#1#/14=#S0058-3#/17=#S0058-3#/18=#1#/780=#5#%')))order by f1.id asc
This query is taking more than 4 seconds to get the results in a system where the DB is running for more than 1 month.
The same query is taking very few milliseconds (50-100ms) in a system where the DB is freshly installed and the data in the tables are same in both the systems.
Kindly advice what is going wrong??
Regards,
PurushothamSQL> @/alcatel/omc1/data/query.sql
2 ;
9 rows selected.
Execution Plan
Plan hash value: 3745571015
| Id | Operation | Name |
| 0 | SELECT STATEMENT | |
| 1 | SORT ORDER BY | |
| 2 | NESTED LOOPS | |
| 3 | NESTED LOOPS | |
| 4 | TABLE ACCESS FULL | PARAMETERTABLE |
|* 5 | TABLE ACCESS BY INDEX ROWID| FDNMAPPINGTABLE |
|* 6 | INDEX UNIQUE SCAN | PRIMARY_KY_FDNMAPPINGTABLE |
|* 7 | TABLE ACCESS BY INDEX ROWID | FDNMAPPINGTABLE |
|* 8 | INDEX UNIQUE SCAN | PRIMARY_KY_FDNMAPPINGTABLE |
Predicate Information (identified by operation id):
5 - filter("F1"."OBJECT_TYPE"='ne_sub_type.780')
6 - access("P1"."ID"="F1"."ID")
7 - filter("FDN" LIKE '0=#1#/14=#S0058-3#/17=#S0058-3#/18=#1#/780=#5#
8 - access("F1"."ID"="ID")
Note
- rule based optimizer used (consider using cbo)
Statistics
0 recursive calls
0 db block gets
0 consistent gets
0 physical reads
0 redo size
0 bytes sent via SQL*Net to client
0 bytes received via SQL*Net from client
0 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
9 rows processed
SQL> -
Delete Index in Process Chain Takes long time after SAP BI 7.0 SP 27
After upgrading to SAP BI 7.0 SP 27 Delete index Process & Create index process in Process chain takes long time.
For example : Delete index for 0SD_C03 takes around 55 minutes.
Before SP upgrade it takes around 2 minutes to delete index from 0SD_C03.
Regards
Madhu P MenonHi,
Normally index creation or deletion can take long time in case your database statistics are not updated properly, so can check stat after your data loading is completed and index generation is done, Do creation of database statistics.
Then try to recheck ...
Regards,
Satya -
Why iPad2 is taking too long time for a software update?
Hi, i have iPad2 with iOS 4.3, now I'd like to update to iOS 6.1.2, but it is taking too long time to update when i connect to iYunes.My internet speed is 15mbps.I am unable to understand the problem.Please help me
Hi, i have iPad2 with iOS 4.3, now I'd like to update to iOS 6.1.2, but it is taking too long time to update when i connect to iYunes.My internet speed is 15mbps.I am unable to understand the problem.Please help me
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