Seeing this error seemingly randomly (never been able to recreate):
Intermittent A call to SSPI failed, see inner exception, he message or signature supplied for verification has been altered
.net 4.5 connecting to MYSQL 5.7.21 on RDS.
Is this an issue on our end or on AWS' end?
Related
I have this error
[ERROR]: Exception on / [POST]
as the last entry in the Log tab of the Cloud Function after testing the function failed with:
Error: function terminated. Recommended action: inspect logs for termination reason. Additional troubleshooting documentation can be found at https://cloud.google.com/functions/docs/troubleshooting#logging Details:
500 Internal Server Error: The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.
What to do?
Just sharing this since it surprised me. The log just needs some dozen seconds to really finish the entries. In my case, I went to the Log directly after the failed test, and then jumped to Edit of the CF right after seeing that log entry error at the bottom, thinking it would be all to gain from the log.
Then I changed my mind, went back to the Log tab and saw the real error entry only coming after that [ERROR]: Exception on / [POST].
Not important since you will have another error anyway: I had used create_engine() function without the needed module prefix sqlalchemy.create_engine(). (Side-note: Querying your own db does not seem to work anyway in a CF unless you use a VPC connector, do not think from this example that it might be possible).
We are currently using SQL Server Reporting Services. We routinely (daily) experience failures of numerous subscription reports during various times of the day/night. There are times when several of the same reports fail. The failures are intermittent and don't exhibit any specific pattern. When we re-schedule the reports to run almost immediately, sometimes we receive subsequent failures and sometimes the reports running successfully.
The status is: Failure sending mail: One or more errors occurred. Mail will not be resent.
We have opened the LOG file in here -> C:\Program Files\Microsoft SQL Server\MSSQL.2\Reporting Services\LogFiles look for filename: ReportServerService.log*
The following error message shows up for each failure in the
ERROR: Error sending email.
Exception: System.AggregateException: One or more errors occurred. ---> System.Net.Mail.SmtpException:
The server committed a protocol violation
The server response was:
at System.Net.Mail.SendMailAsyncResult.End(IAsyncResult result)
at System.Net.Mail.SmtpClient.SendMailCallback(IAsyncResult result)
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait(TimeSpan timeout)
at Microsoft.ReportingServices.EmailDeliveryProvider.EmailProvider.Deliver(Notification notification)
---> (Inner Exception #0) System.Net.Mail.SmtpException: The server committed a protocol violation The server response was:
at System.Net.Mail.SendMailAsyncResult.End(IAsyncResult result)
at System.Net.Mail.SmtpClient.SendMailCallback(IAsyncResult result)<---
. Additional Information: SmtpException StatusCode:GeneralFailure
Unfortunately, the error is very vague and is extremely difficult to troubleshoot. Due to this on-going problem, we have to re-run up to about 20 reports daily. We have conducted extensive research and analysis of our report and SMTP server configurations but are still unable to resolve this annoying problem.
If anyone has experienced this issue and/or can provide some insight on how to permanently solve it, please let me know as soon as possible.
Thanks.
Obviously late, but this was probably caused when microsoft forced everything to TLS 1.2 and degraded 1.0
The fix was to add the below dwords to the registry so it wouldn't attempt TLS 1.0
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]
"SystemDefaultTlsVersions" = dword:00000001
"SchUseStrongCrypto" = dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SystemDefaultTlsVersions" = dword:00000001
"SchUseStrongCrypto" = dword:00000001
I am running Visual Studio 2010, and attempting to update my Entity Framework project using the Update Wizard. When I attempt to add a single table from the MySql database, the add tab will show the table that I am attempting to add, however when I click finish, I get the following error message.
Unable to generate the model because of the following exception: 'An error occurred while executing the command definition. See the inner exception for details.
Fatal error encountered during command execution.
Fatal error encountered attempting to read the resultset.
Reading from the stream has failed.
Attempted to read past the end of the stream.
I get the same error message if attempt to create the Entity Framework from scratch. In addition, Server Explorer shows that the connection is successful when I test it.
I have also contacted Host Gator who is hosting the database and they where not able to see any issues on their side.
The problem ended up being that our shared server, was not able to handle the Update Request from the Entity Connector Framework and was timing out. Once we moved our database over to a different server we no longer had an issue.
We are migrating some websites onto a cloud infrastructure running Windows 2008 virtual machines. These websites all run on ColdFusion with MySQL databases. They currently are running in our CoLo with no problems. Additionally, they are running on our development network in our offices with no problems.
We are setting up our cloud to match as closely as possible the configuration we currently use which is, essentially, CF10 + IIS on one server and MySQL on a separate machine. We are 99% finished and most things are running great. However....
We have run into a couple, as in 2, places where we click a link/button and are greeted with:
Error Executing Database Query.
Communications link failure The last packet successfully received from the server was 0 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
Scanning the stack-trace I also find:
Caused by: java.net.SocketException: Connection reset
The communications link error is ALWAYS: 0ms.
What's most puzzling is the Queries that seem to be causing this are simple queries that are used ALL OVER the sites with no problems. Why they are failing at hese 2 particular places has us at wits end.
Our only clue is, looking at the CF Error description of what scripts are called, we can see the script where the query is failing is getting called twice? For example, one of the occurences is in our Application file:
>The error occurred in D:/Our_Web_Sites/oursite/Application.cfm: line 73
>Called from D:/Our_Web_Sites/oursite/Application.cfm: line 17
>Called from D:/Our_Web_Sites/oursite/Application.cfm: line 1
>Called from D:/Our_Web_Sites/oursite/Application.cfm: line 73
>Called from D:/Our_Web_Sites/oursite/Application.cfm: line 17
>Called from D:/Our_Web_Sites/oursite/Application.cfm: line 1
We can find nothing in our CF code that would be causing the script to be called twice so our guess is the first call is failing on the Query so CF tries again...only to fail and error.
Googling this issue I've found lots of posts about changing the MySQL timeouts. None of those worked and I didn't expect them to since what we're dealing with doesn't appear to be a timeout issue. These pages fail each and every time.
The closest we've come to a solution came from this blog posting:
http://www.talkingtree.com/blog/index.cfm/2011/1/12/Validation-Query-for-MySQL-communications-link-failure!
If we UNCHECK the "Maintain connections across client requests. " setting in CFAdmin then the error goes away. The blog suggests leaving that checked, which is our preference, and using Connection Validation of "SELECT 1;". Try that...same error.
We've also tried the JDBC AutoConnect=true option. No effect.
Downloaded latest JDBC Connector and used it instead of standard CF10-MySQL connector. No effect.
Again, 99% of the site works with the exception of these two links, both of which work just fine in all our other environments. Any other ideas?
I feel like I've had a similar problem every time I upgrade CF or MySQL. Usually a change in the JDBC driver or connection string helps, which I see you already tried.
Have you checked the MySQL error log for any hints? Ours is in /var/lib/mysql (whatever your 'datadir' variable is set to) and ends with a .err extension.
Also, maybe trying some of the other JDBC connection string options for your version? I see some extended logging you can enable.
http://dev.mysql.com/doc/refman/5.1/en/connector-j-reference-configuration-properties.html
Found the issue. We are running our network on Savvis' cloud infrastructure. The Windows server instances we were using from Savvis had Trend Micro Deep Security Agent installed. This is an intrusion protection system and it was the problem. Disabling the service cleared up all communication errors. I have no clue why it was rejecting some queries that it had just accepted previously. I am just glad to (finally) put this behind me!
I get the following exception in my project (.NET socket server):
ERROR HY000: [ODBC Driver 3.51] Can't connect to MySQL server 'someHost' (10060)
The error does not occur every single time, though. So that rules out configuration errors or incorrect login details. Also when I show all my %max% variables, I'm not getting close on any of them. Unfortunately the verbosity of the logging cannot be changed, and the logs have not been written to recently.
What can cause these sporadic connect failures?