Welcome to the Cumulus Support forum.

Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025

Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024

Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)

Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki

If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080

MX Error

Topics about the Beta trials up to Build 3043, the last build by Cumulus's founder Steve Loft. It was by this time way out of Beta but Steve wanted to keep it that way until he made a decision on his and Cumulus's future.

Moderator: mcrossley

Locked
liddelljs
Posts: 122
Joined: Sat 31 Oct 2015 10:22 pm
Weather Station: Ecowitt GW1001
Operating System: RPi 3 Raspbian Buster
Location: Perth Western Australia

MX Error

Post by liddelljs »

Hi all,
I've had an error come up on MX a couple of times now over the past couple of weeks and wonder whether anyone else has come across it before. It seems to stop the ftp upload but doesn't stop the gauges showing properly (I checked the ftp log file for errors but the file was empty). A restart of MX seems to fix the problem and no data is lost. I am still running v3038 and wonder whether I should update to 3040?

Cheers
Steve

2016-08-13 06:00:04.156 System.IO.IOException: Sharing violation on path /home/pi/CumulusMX/web/tempdata.json
at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) [0x00000] in <filename unknown>:0
at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share) [0x00000] in <filename unknown>:0
at (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor (string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare)
at System.IO.StreamWriter..ctor (System.String path, Boolean append, System.Text.Encoding encoding, Int32 bufferSize) [0x00000] in <filename unknown>:0
at System.IO.StreamWriter..ctor (System.String path, Boolean append) [0x00000] in <filename unknown>:0
at (wrapper remoting-invoke-with-check) System.IO.StreamWriter:.ctor (string,bool)
at . () [0x00000] in <filename unknown>:0
at CumulusMX.Cumulus.DoHTMLFiles () [0x00000] in <filename unknown>:0
at System.Threading.Thread.StartInternal () [0x00000] in <filename unknown>:0
User avatar
steve
Cumulus Author
Posts: 26672
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:

Re: MX Error

Post by steve »

Another process is using the tempdata.json file at the same time as MX is trying to write to it. The other process might be an external application, or it may be another process in MX itself, if you have MX configured to do something with the file other than the standard processing.

(MX should really trap this error like Cumulus 1 does, and not allow the exception to kill the upload thread)
Steve
liddelljs
Posts: 122
Joined: Sat 31 Oct 2015 10:22 pm
Weather Station: Ecowitt GW1001
Operating System: RPi 3 Raspbian Buster
Location: Perth Western Australia

Re: MX Error

Post by liddelljs »

Thanks for the response Steve. I don't think I am doing anything but the standard file processing but I'll do some checking.

Cheers
Steve
Locked