Need your help on this my Cpanel account seems to have an error thus whenever I try to edit a file after then when clicking on SAVE button it takes so long to respond and in the end following message displayed
HTTP ERROR 0: communication failure Show/See Details
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I am new in codelaboratory and I am not knew how works. For example, I create a new file but when i try to run it appears this message: "We have received your request to access Colaboratory backends. We will notify you when Colaboratory is ready for you to use."
Access to code execution currently requires signing up.
The message you received indicates that you have registered.
I'd expect to receive a notification within a few hours that your request has been approved.
I currently registered my Quecklink GV500 to cumulocity and I'm able to receive some events and measurements.
But when I try to send command to my Quecklink GV500 registered in Cumulocity but I always hava a FAILED response. For example, I tried to send this command (which is fully supported by the GV500) from SHELL tab: AT+GTTMA=gv500,+,1,0,0,,,,,,FFFF$
And as result I got:
Failure reason: Command currently not supported
I also tried to get the agent logs by using "Log file request" in the "Log" tab of my Device and as result I got:
Failure reason: Cannot build command. Search parameters only allow the
following characters [a-zA-Z0-9_]
Is it normal?
When I look the general information in "Info" tab I have:
Send connection: online
Push connection: inactive
Is it normal that Push connection is marked as inactive?
The tracker-agent in it current state does not use a push connection for receiving operations but does a polling of the operations. Therefore the push connection is always shown as inactive.
If you receive "Failure reason: Command currently not supported" it is an error from the agent not the device. The agent seems not to support shell operations for Queclink.
As for the error on the log file request it seems that there was an unsupported character in the search parameter. Maybe you can share what you entered for the parameters in the UI
Thanks for your answer. For the log file request I let blank value in the search input field. If I try to enter "gl200", I get the following error: Command currently not supported.
So to resume can you confirm that Quecklink devices can't be managed from Cumulocity for the moment? It's supported for which device?
I'm fetching messages on background from IMAP server using performFetchWithCompletionHandler.
The first thing I do on method implementation is check for network reachability, discarding operation if its no available.
Then I start refresh process executing fetchMessagesOperationWithFolder on a IMAP session.
As result of this operation I usually receive no error, but sometimes I receive an MCOErrorParse (Unable to parse response from server), MCOErrorConnection (A stable connection to the server could not be established) or MCOErrorAuthentication (Unable to authenticate with the current session's credentials).
Can all this errors be produced due to connection failure?
I want to handle the MCOErrorAuthentication to notify user on the credentials error, but in this scenario the credentials are ok, so when I perform any operation when on foreground again with network reachability it will succeed.
Should I do an extra network connection check before proceed on those errors? Should I create a new IMAP session on every operation?
Thanks!
Edit
I'm adding ConnectionLog, it take me long to reproduce the error. Its very clear why I receive a MCOErrorAuthentation: I'm not loading password well.
2014-12-18 21:00:41.212 * OK Gimap ready for requests from 85.58.177.133 et58mb78762219web
2014-12-18 21:00:41.222 1 CAPABILITY
2014-12-18 21:00:41.302 * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH AUTH=XOAUTH2 AUTH=PLAIN AUTH=PLAIN-CLIENTTOKEN
1 OK Thats all she wrote! et58mb78762219web
2014-12-18 21:00:41.304 2 LOGIN “polferresamon#gmail.com" ""
2014-12-18 21:00:41.378 2 NO Empty username or password. et58mb78762219web
2014-12-18 21:00:41.380 Error fetching messages: Unable to authenticate with the current session's credentials.
So, to really solve MCOErrorAuthentication I have to check IMAP session init, and the process where I'm loading email and password when returning from background.
I guess parse and connection errors are due to connection issues.
Thanks for your help.
We have seen much more SSL error than before when we move to a new server. The total SSL error rate is not high. Many of them are:
error:140943E8:SSL routines:SSL3_READ_BYTES:reason(1000):s3_pkt.c:1256:SSL alert number 0
We finally found these requests are actually successful requests. Why these error was generated is that openssl found these were fatal error. Add more debug info show that:
ssl_callback_info:SSL_CB_READ_ALERT fatal error close notify
But from rfc2246:
7.2.1. Closure alerts
The client and the server must share knowledge that the connection is
ending in order to avoid a truncation attack. Either party may
initiate the exchange of closing messages.
close_notify
This message notifies the recipient that the sender will not send
any more messages on this connection. The session becomes
unresumable if any connection is terminated without proper
close_notify messages with level equal to warning.
We are wondering if there some special clients send "alert 0" as fatal . Or this related some known issue of openssl. We are using openssl-1.0.1e now. Before migration we used openssl-1.0.0-25.
Any suggestions would be appreciated.
Update:
I investigated the access log and found almost all the "fatal alert 0" was sent by Safari on Apple devices(Mac, iPhone, iPad).
Through the code of libsecurity_ssl which the library of SSL engine. I found that this library would send "fatal alert 0" in sometimes that was totally different with other SSL libraries, for example openssl, NSS.
SSLFatalSessionAlert(SSL_AlertCloseNotify, ctx);
http://www.opensource.apple.com/source/libsecurity_ssl/libsecurity_ssl-32463/lib/sslRecord.c
This mostly occurred when Safari meet unexpected abort of the connection. As my server would not sent a "warning alert 0" to close the connection.
I have one user who gets the following error when trying to login, "Silverlight client load operation failed for query "Login". [GenericParameterNotValid]". The odd thing is that other users are able to login without issue and I can login using the "problem" account from other machines.
At this point I think it's got to be a client side configuration issue.
My next step is to confirm the Client Side Silverlight Version, but I don't know where to go after that.
Do you have any suggestions?
Install Silverlight Developer runtime on the client to get more details on the error.
Try deleting the user's profile.
This thread might help you.
Just leaving a breadcrumb here. We had the following error in a Silverlight RIA Services application attempting to login:
Load operation failed for query 'Login'. Error in deserializing body of the request message for the operation 'Login'. The OperationFormatter could not deserialize any information from the Message because the Message is empty (IsEmpty = true).
This was in Server 2003 with IE 8. Turns out a restart of the browser made the problem go away! Very frustrating.