Cannot connect to mysql server
[530211450FCD7FAD57BCBD082C766733] [ERR] Errore JDBC:java.lang.NoClassDefFoundError: java/sql/SQLClientInfoException.
Even i already set mysql-connector-java-5.1.3-rc-bin in JDK1.5\lib\ext folder.
SQLClientInfoException is a rather new class that was added only in Java 6.
It seems that this version of the MySQL JDBC driver requires Java 6.
Similar Messages
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Connection to db rejected.Cannot connect to MySQL server
here is the excaption
connectToDb:02 - connection to db rejected.Cannot connect to MySQL server on localhost:3306. Is there a MySQL server running on the machine/port you are trying to connect to? (java.net.BindException)
and her is the class
import java.io.*;
import java.sql.*;
import java.util.*;
public class DBconnect
{ final static private String _url = "jdbc:mysql://localhost:3306/diamonds"; //final static private String _driver = "sun.jdbc.odbc.JdbcOdbcDriver";
//final static private String _url = "jdbc:odbc:diamonds"; //final static private String _driver = "sun.jdbc.odbc.JdbcOdbcDriver";
public Connection _con = null;
//private static Driver driver = null;
private static Properties properties = null;
Statement stmt = null;
public PrintStream out;
**connectToDb **
public void connectToDb() throws IOException
//connect to the server and open the database
try{
Class.forName("org.gjt.mm.mysql.Driver");
//Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//driver = (Driver)Class.forName (_driver).newInstance();
properties = new Properties();
properties.put("user","sa");
properties.put("password","");
catch (ClassNotFoundException e)
System.out.println("class not found:");
e.printStackTrace();
catch (Exception e) {
e.printStackTrace();
throw new IOException("connectToDb:01- JDBC driver not found."+e.getMessage());
synchronized void open()throws Exception
try
if(_con == null)
try
_con = DriverManager.getConnection(_url,properties);
//_con = driver.connect(_url,properties);
catch (SQLException e)
e.printStackTrace();
System.out.println("connectToDb:02 - connection to db rejected."+e.getMessage());
stmt = _con.createStatement();
catch (Exception e)
e.printStackTrace();
System.out.println("connectToDb:02 - connection to db rejected."+e.getMessage());
synchronized void close()
try
if(_con != null)
if(!_con.isClosed())
stmt.close();
_con.close();
_con = null;
catch (Exception e)
System.out.println("es:fail to close connection!!");
}the problem occars when there are a lot of queries that the project is sending to the DB (about 10000) the last half queries fails and send an excaption .
after 2 minutes the system seems like working fine.
I am stack with this problem about a year and cann't resolve it.
any idea????
regards
amnon mwell...new it seems to work fine, but is it ok to
keep connection open for good ???
isn't there any other alternative ???I am bit confused are you pooling the connections?
If so, actually the connections will not always stay open.. they will time out after a while when they are not in use but to specifically answer your question.. how could it possible be a bad thing. If the server/your app was getting bogged down with opening and closing connections then pooling solves this..
Finally as to your question of the alternatives... if the problem was opening and closing connections and reusing them through a pool solved this then I think the answer is no. If you don't like a specific part of the way the pool works it is probably configurable in some way and you could always implement your own pool.. although I wouldn't overly recommend that. The bottom line is that you need to keep your connections open for reuse.. pooling is the simplest way to achieve this.. but no there is no alternative to keeping your connections open if you are having the load problems you described. -
I have a List which is having around 14000 items in it.while opening that list in datasheet view it is giving error .
Below is a summary of the issue:
After selecting datasheet view beow error occurs:
"Cannot connect to the server at this time. You can continue working with this list, but some data may not be available."
"Unable to retrieve all data."
The item counts displays say 100 out of 14000 items.
Exporting List to excel is giving only 2000 records out of 14000 records.
Other Observations -
This is happening to only one list on the site .There are other lists in the site whose no. of records is equal to 8000 to 9000.They are working absolutely fine without any error.
Also, If I am saving this list as a template and creating another list with it ,then it is working absolutely fine with 14000 records,so the issue does not seem to be related with no. of records as the template list is working fine.
I have checked the Alternate access mapping setting ,its fine.
It should not be related to lookup,datefield or any other column as the list created from it template is working fine with all these columns.
I checked below links also ,but doesn't seem to work in my case.
http://social.technet.microsoft.com/forums/en-US/sharepointadminprevious/thread/974b9168-f548-409b-a7f9-a79b9fdd4c50/
http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/thread/87077dd8-a329-48e8-b42d-d0a8bf87b082
http://social.msdn.microsoft.com/Forums/en-US/sharepointgeneral/thread/dc757598-f670-4229-9f8a-07656346b9b0I have spent two days to resolve this issue. Microsoft has released two KBs with reference to this issue...but are not appearing in search results at the top.
I am sharing my finding.
1. First install the
KB2552989 (Hopefully you might have already installed it. The KB detetcts it and informs the user.)
2. Then update registry by adding new key for data fetch timeout as mentioned inKB2553007
These two steps resolved the issue in our environment. Hope it might help others as well.
Pradip T. ------------- MCTS(SharePoint 2010/Web)|MCPD(Web Development) https://www.mcpvirtualbusinesscard.com/VBCServer/paddytakate/profile -
Hi,
Me and a collegue is administrering our new enterprise BI portal in SharePoint 2013 (On Premise) and have a problem with using a specific Excel file including general ledger data as data source through a BISM file.
This particular BISM file can't be saved without getting the error message "There were errors found while validating the page: Cannot connect to the server or database."
BISM files against other Excel sheets and sources (for example SSAS tabular databases) works well.
Can anyone help us pinpointing whats wrong here, this is a really important stakeholder in our organization requesting this reporting?
Cheers!Hi E.SWARD ,
My self created a Power pivot excel then i want to use this excel to create BI file . Still i am getting the same error . Pls help me to resolve this issue
Cannot connect to the server or database.
I am getting the similar error , if i use Tabular analysis server instance .
Subhash -
My mini iPad suddenly will not connect to the internet or retrieve my email. I'm getting an error message that says "cannot connect to the server". How do I fix this?
Nevermind. I found the answer from someone else's question. Thank you.
-
Hi all
I've been running Windows Server 2012 R2 with the Essentials Experience in test for a Windows 8.1 client environment, on an HP ProLiant MicroServer N54L. Overall I've found the Essential Experience set-up over WHS2011 and WHSv1 okay; still looking to extract
any real value over the former versions.
This box has been up and running for a few months now, with client backups of a Win 8.1 box scheduled and running successfully every day. However when trying to conduct any file restores from the backups, to the client, I receive an error dialog once I go
through motions from the Dashboard:
On the 'Devices' tab, right-click the appropriate client and select 'Restore files or folders for the computer'
'Restore Files of Folders' dialog pops up, asking me to 'Choose a backup' from the list of all the backups that have run
Select any one in the list - have tried numerous backups; automatic, manual, etc. same result every time
Brings up the dialog to 'Choose a volume', choose either C: or D: partitions of the same fixed drive - again, no difference which one I choose, the outcome is the same
'Opening the volume' dialog starts, with progress bar, runs to about 4% complete the pops up the dialog 'The restore process did not succeed'. Full error in the dialog, "The restore process did not succeed because your computer cannot connect to the
server. Make sure that the computer is connected to the networkm and then try again
If my computer cannot connect to the server - how can I get that far? How can I open the dashboard, select a client, select from a list of backups, select a volume to restore, etc. What is going on here?Hi,
Please check if a "host" entry for the server is added to the client. For more detailed information, please refer to the threads below:
Unable to Restore files or folders from a Client Backup
http://social.technet.microsoft.com/Forums/en-US/d1d001bd-20c5-4f09-861d-526c31567963/unable-to-restore-files-or-folders-from-a-client-backup
Can't restore anything
http://social.technet.microsoft.com/Forums/windowsserver/en-US/98e269b5-2bd1-449e-a213-e386ae15266f/cant-restore-anything?forum=winserveressentials
Regards,
Mandy
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place. -
Why does my Apple TV keep giving me the message "Apple TV cannot connect to the server" when I try and rent a movie to watch?
Hello dprice3885,
Thanks for using Apple Support Communities.
Take a look at the Wi-Fi troubleshooting since you can access the network but not the content.
Apple TV: Basic troubleshooting
http://support.apple.com/kb/HT6106
Apple TV (2nd and 3rd generation): Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/TS4546
Have a nice day,
Mario -
Dear Fellas:
I received "database error #2002 can not connect local mysql server to socket through '/var/run/mysqld/mysqld.sock'(2)" on mac os x 10.9.2.
mysql info:
ps -ef | grep mysql
0 66 1 0 11:06AM ?? 0:00.04 /bin/sh /usr/local/mysql/bin/mysqld_safe --user=mysql
74 225 66 0 11:06AM ?? 0:02.50 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/data/Chuans-MacBook-Pro-2.local.err --pid-file=/usr/local/mysql/data/Chuans-MacBook-Pro-2.local.pid --socket=/var/run/mysqld/mysqld.sock
501 952 947 0 3:52PM ttys000 0:00.00 grep mysql
Please help!!Fascinated and guessing:
Something related to sock(2) because that's not part of your copied info. I'm thinking you've doubled up on sockets and the second socket doesn't exist, meaning you should be connecting to the first socket "mysqld.sock" whether automatic or not.
I've only used GUI tools on purpose, so does this mean you've already got MySQL running and you tried to launch it again manually? Perhaps you already have one instance of a db and you're trying to launch a second instance, and the two can't coexist with a single user local db?
Assuming this is all local, I'd shut down the db service and restart it, out of hand. I've seen similar messages when I set the db to start up on boot, and it didn't finish shutting down when I tried to restart it manually. Usually the GUI won't let me turn it on because it reports it's already running, but in that case it hadn't finished performing what the GUI was reporting.
Just speculating. -
Error message received submitting form via email - "Acrobat cannot connect to the server"
Some of my users are unable to submit form data. The forms are set up to be submitted via email and only a few of the users are effected. They have installed the latest versions of both Acrobat and Adobe Reader.
"Acrobat cannot connect to the server, but will automatically submit your form once the server is online. You can check tracker for the status of this submission."
"You have already submitted the data on this form and it is waiting to be sent. Further changes are not allowed until the prior data is sent."
I know that this question has been asked before, but there has not been a response. This is very frustrating.
Thanks for any help or sugesstions.I have this exact same error, but also have not yet found a workaround.
Only sporatic users get the error, and I've been unable to duplicate it from my machine. I am on Adobe Reader v 10.1.2.
Actually I can get around the error if I were to downgrade to Adobe v9, but that is a bandaid fix - not really a secure answer. -
Ipod screen says to connect to itunes but won't let me enter my password. Tried recovery mode but when I click 'restore' itunes says it cannot connect to update server. Help!
Place the iPOo in recovery mode for the passcode issue. For recovery mode:
iPhone and iPod touch: Unable to update or restore
Also see:
iTunes for Windows: iTunes cannot contact the iPhone, iPad, or iPod software update server -
Hi all,
In SAP is it possible to connect a mysql database and get data from? Our resources(machines) have a server and this server keeps data about production. And i want to connect this db server and get data with my syntax, constraints? Can i directly do that in SAP ?
Regards,I only want to connect the mysql server and get some of data from tables on mysql and save this data in the table of SAP system ? How can i do that ?
Regards, -
I updated to mountain lion and now mail cannot connect to my server
I updated to mountain lion and now mail cannot connect to my server. It says check your user name and password are correct. Well they are, and were. Nothing has changed except the mac OS.
Has anyone else suffered this and knows a way around it? Too annoying to log into my mail every 15mins via a web page anymore.
Efforts tried to resolve this so far:
retyped user name and password, removed account and created a new account, restarted computer, software update, searched forums. so far all have proved unsuccessful.
I have also written to my mail provider and am waiting for feed back from them, but if anyone has any advice it would be gratefully received.
Many thanks,
MikeMany users upgrading to Mountain Lion have run into this problem, myself included. You likely have corrupted settings for your "Outgoing Mail Server (SMTP)" for each of the failed Accounts. Open Mail>go to Mail's Preferences>Accounts>select an Account in the left column to work on>then set up your Outgoing Mail Server which will INCLUDE resetting up your Password, as its asking you to. Click on "SMTP Outgoing Mail Server" near the bottom of the Accounts window while your mail account is highlighted in the left hand column. When you click on SMTP... you will see a drop down box icon offered at the right side of the line. Click it and then select at the bottom of the the list "Edit SMTP Mail Server". Fill in the required settings for your ISP mail account using their recommended settings.
-
My ipod is in recovery mode and my itunes cannot connect to the server what do i do?
my ipod is in recovery mode and my itunes cannot connect to the server what do i do?
Update Server
Try:
- Powering off and then back on your router.
- iTunes for Windows: iTunes cannot contact the iPhone, iPad, or iPod software update server
- Change the DNS to either Google's or Open DNS servers
Public DNS — Google Developers
OpenDNS IP Addresses
- Try on another computer/network
- Wait if it is an Apple problem -
Report cannot connect to OID server
Hi all ,
When I try test Report on Oracle Applaication
http://hercules.dati.lv:7785/reports/rwservlet/getserverinfo?server=rep_hercules&authid=portal/sys_new904
then get error message
REP-50200: Cannot connect to OID server.
URL http://hercules.dati.lv:7785/reports/rwservlet/
works fine.
Connect with sqlplus portal/sys_new904 to Infrasructure is ok also.
What a problem may be ?
We can't run any reports on iAS :(
We have iAS 10g on Solaris 8.
Thanks a lot,
Pavel.Hi,
let me start asking teh question if you need reports to conenct to OID. This is required when you want to authenticate users via SSO or when you use Reports access control security to protect Reports Servers and Reports definition files.
If the answer two both are NO, try
SINGLESIGNON=NO in rwservlet.properties located in ApplicationServerHome\reports\conf
and remove the elements
<security id="rwSec" class="oracle.reports.server.RWSecurity">
<!--property name="securityUserid" value="%PORTAL_DB_USERNAME%/%PORTAL_DB_PASSWORD%@%PORTAL_DB_TNSNAME%" confidential="yes" encrypted="no"/-->
<property name="oidEntity" ...
</security>
from the <Reports Srever name>.conf file
Restart the application server and you should be fine. I don't know why Reports Srever can't connect to OID, did you try and connect to DAS http://server:port/oiddas
If this fails too, then possibly the problem occured when configuring the OID access during the midtier installation
Frank -
BPC Excel: The system cannot connect to the server. There might be network
Hi Guys,
I get the following error when i try to connect to BPC Excel: The system cannot connect to the server. There might be network or security issue.
This only happen on clients machines, I have installed the client tools on the server and tested, i can connect to Excel but not on the machine. My MS office version is the same as the one on the server. BPC is ver 5.04
Has anyone experienced the same problem.
your help will be greatly appreciated.Let me summarize your issue to see if I may help. If I cannot, then you will need to work with SAP Support on the connection problem.
- You have a single or multi-server setup?
- Installed using BPC 5.1 SP3, (or 5.0.502) correct?
- You can enter the BPC on the server, both via BPC Excel and BPC Admin?
- When you initiate BPC Admin on your client, so can connect to the Server and perform Admin operations?
- When you initiate BPC for Excel, and walk through the connection wizard, you cannot connect to the server?
- When you are in the Connection Wizard, are you using a path or a Server designation?
- Is the system on a single domain?
- When you added users to the Admin Security profile, they were selected from a DOMAIN?
- You have processed security and assigned ALL TASKS currently and processed the MEMBER ACCESS profiles, yes?
After all of this, have you uninstalled 1 BPC client, cleared the ProgramFiles/BPC folder, and deleted the local stored BPC information? If you haven't, just for simplification, I would attempt this process.
You also hae read all the SAP Support Notes regarding using Excel2007 with BPC and the issues you may experience?
Please let me know and maybe we can help.
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