I have created a web service which will do some long string calculation and will return result in json format .
Also written a demo app to test that web service.
I have tested the web service on my local machine.
Its working good when I used 64 bit compiler.
For 32 bit it doesn't work well due to memory constraints.(I am fine with 62 bit compiler)
Issue:
When I tried running my script on azure cloud. Its getting failed for heavy data calculation with error " Response status Code: does not indicate success: 502(Bad Gateway) "
I am unable to find reason for that.
Some Possibilities :
Do I require to turn any option to 64 bit explicitly for azure cloud.
By any chance timeout is happening, If yes then how to remove that
I am working on basic free trial of Microsoft azure version, Does they have some limitation for that.
I am calling the web service through "client.BaseAddress = new Uri("http://featuretracking.azurewebsites.net/");"
and local host through "http://localhost:56411/"
I have deployed as web app on azure.
There is an offical article for troubleshooting http error 502 & 503, which list some reasons below for the issue and how to troubleshoot.
requests taking a long time
application using high memory/CPU
application crashing due to an exception.
Please check eventlog.xml file in the logFiles folder via access the kudu tool https://<your-webapp-name>.scm.azurewebsites.net/ to see what happended at the time of error 502.
Related
I'm seeing errors in StackDriver logging for my Compute instance. The logs are showing repeated issues every hour, creating a lot of noise. I have a Spring Boot API deployed in a container to a VM in Compute Engine using latest stable version of Container OS.
I'm relatively new to GCP and don't understand what is causing this issue, searches have come up empty so far.
Failed to call method: org.chromium.SessionManagerInterface.RetrieveActiveSessions: object_path= /org/chromium/SessionManager: org.freedesktop.DBus.Error.ServiceUnknown: The name org.chromium.SessionManager was not provided by any .service files
CallMethodAndBlockWithTimeout(...): Domain=dbus, Code=org.freedesktop.DBus.Error.ServiceUnknown, Message=The name org.chromium.SessionManager was not provided by any .service file
Error calling D-Bus proxy call to interface '/org/chromium/SessionManager': The name org.chromium.SessionManager was not provided by any .service files
The same 3 lines are repeating every hour. Anyone aware of what might be causing this or how to fix/suppress these?
I looked into this error, and as per my findings:
The error message that you have been receiving is a manifestation of Chrome to reliably exit shortly after starting up.
The UI’s job (which encompasses Chrome, the session_manager and the window manager) gets shut down by upstart because of it's thrashing, and when the test tries to restart the session_manager, the session_manager cannot communicate it over to the D-Bus.
The crash collection software in Container OS was originally for Chromebooks (The laptop using Chrome browser). So the code typically expects Chrome and some other related software on the system.
However, Container OS is a server OS, and does not have Chrome. So if Chrome is missing, the software will report some errors. They are actually not real failures, just some verbose error messages.
Overall, It is safe to ignore these logs and continue using your VM Instances.
Hope this helps.
I have installed hyperledger composer locally. But on localhost it gives error :
Error : Error trying to ping.
Error: No business network has been
specified for this connection.
I am not able to add model and script file as well.
This is the errors showing in terminal
error: [Hyperledger-Composer] undefined:HLFConnection :ping() Error: Error trying to ping. Error: No business network has been specified for this connection
at _checkRuntimeVersions.then.catch (/usr/local/lib/node_modules/composer-playground/node_modules/composer-connector-hlfv1/lib/hlfconnection.js:787:34)
at <anonymous>
at runMicrotasksCallback (internal/process/next_tick.js:121:5)
at _combinedTickCallback (internal/process/next_tick.js:131:7)
at process._tickCallback (internal/process/next_tick.js:180:9) error: [Hyperledger-Composer] undefined:ConnectorServer :Error: Error trying to pi
I think I solved this problem.
About the error
The error reason is No business network has been specified for this connection., this does not happen when you first time to run composer-playground, because that time, you truly do not have a network and you either do not have card too, so there is a modal pop up Let's blockchain.
This only happened when you stop/delete your business network net, or there is no business network running but you also have the business card linked to the network.
Solution
Follow the tutorial to create a new business network locally
restart your farbric tool by stopFabric.sh and startFabric.sh, (* this is not to start your business network but your fabric)
run your playground again composer-playground
probably you will also see the error again (error trying to ping), but no worry
find a button at top right corner which is folded My Business Networks
delete the card without connection or deploy a new network
This worked for me, hope it will work for you too. This kind of process design limitation, the card is still there even you delete your network or your are trying to start your playground even you did not start your network. This is why this error happened I think.
Addition, More about playground
Hyperledger Composer Playground (Playground from now on) uses your
browser's local storage to simulate the blockchain network's state
storage, which means you don't need to run a real validating peer
network to use Playground.
Using browser-only mode, you can model and test the business network
using a mock blockchain ledger that resides in your browser's local
storage.
How to delete cache in browser Chrome
This probably can solve many errors.
In Chrome, for example, under Settings > Advanced > Content Settings >
Cookies > All cookies and site data > localhost, click the trashcan
icon to remove local storage. If you're using a different browser,
follow the instructions specific to that browser, and delete all local
storage.
References
A very good IBM blockchain/ composer tutorial, just old, need to be pay attention to that some commands not working in the same way on new version of composer
I got the same issue here. I'm not sure what's wrong(maybe because I fail to create a business network last time). But since the playground store the data with browser local storage. I simply clear the local storage and fix it.
I had the same issue and it got fixed.
Clear the cache of your browser and refresh the page!
Noticed composer wasnt running in the terminal.
Runcomposer-playgroundin the terminal and retry.
I am getting an EOSError code 5 - Access Denied when the
TServiceApplication attempts to register the service with the
ServiceManager.
I am using XE2 Win7 64 bit. The error occurs for both 32 and 64 bit
targets.
I have a datamodule that uses ADO to connect to a database, and the web
services server code. All the code is used in a WinUI project which
works. I also have an untested ISAPI DLL based on the same core code.
This is the first time I have tried incorporating a Web Services Server
into an NT Service.
I have traced the VCL code that produces the error at line 1027 of
Vcl.SvcMgr but I don't know why I am getting the Access Denied error. I
have written other NT Services that connect to the database through ADO
and have not encountered such an error (although written with XE).
Any pointers would be appreciated.
You are likely encountering a UAC permissions issue that expects you to run the service install process in an elevated state, such as from a cmd.exe instance that was launched via the "Run as administrator" option, but you are not actually doing so. If you are having this problem with only some services and not others, then the affected services likely do not contain a UAC manifest but contain characteristics that are triggering UAC's Installer Detection feature, typically (but not restricted to) having reserved keywords in your service's filename or version resource.
I need a little help solving an issue regarding .NET web services. I have a desktop application that consumes my main web service. One of the methods gets some report data, but in order to do that, web service (A) calls a method in web service (B). Depending what parameters I pass into "A"s method, it either works or fails. If I pass in a filter, the dataset is pretty small, when I don't pass in a filter obviously the dataset is very large. Additionally, if I run web service "A" in debug mode and point my desktop app to the local version (meanwhile B is on our production server), it works wether I filter the data or not. The error I get is a 502 Bad Gateway on production, and a 502 - Web server received an invalid response while acting as a gateway or proxy server.
We have a web farm with some ARR's, so I went into the web farm's ARR, and found "Proxy" settings and adjusted the timeout to 1200 seconds (whereas my app usually fails within 20-30 seconds) and I'm still receive this error. The HTTP version is in "Pass through" mode with the "keep alive" checkbox checked.
We have no issues using a windows service consuming a web service or anything like that, just when one web service consumes another web service.
Addition,
I'm not using any sessions in my web service methods, and I believe the webmethod I call in web service "B" does have a cacheduration value set of 5 minutes.
I'm scratching my head on this for my lack of knowledge of IIS 7, and many other things. If anyone has any ideas or can point me in the right direction I would certainly appreciate it.
I thought I'd come here and answer this question in case anyone else ran into the same issue. This issue was not server related at all. It was code related. In my code I had a datatable (c#), and was doing a datatable.select(....) where I would pass in a filter with many "OR"'s. Ex. Filter = 'x' OR 'y' OR 'z' etc etc. I had around 100 of these, which caused the datatable.select method to produce a stackoverflow exception. I changed the code to do an "IN (x,y,z)" and it works fine now. Hope this helps someone.
After installing VMware Server I get the following error when I try to access the VMware web-based server manager:
The VMware Infrastructure Web Service
at "http://localhost:8222/sdk" is not
responding
Go into the services manager and check that the 'VMware Host Agent' service is running. If not, then start it and then try browsing to the site again.
Vmware Hostd was not working for me either.
However, in trying to start the service it stopped automatically. Typically when this happens it is because there is an error in your config.xml.
C:\ProgramData\VMware\VMware Server\hostd\config.xml
In my case, checking the logs at:
C:\ProgramData\VMware\VMware Server
showed it erroring out after "Trying hostsvc".
Searching the config.xml for hostsvc showed references to several things, the first thing was the datastore. In checking my datastores.xml file:
C:\ProgramData\VMware\VMware Server\hostd\datastores.xml .
I found it full of all sorts of random characters instead of a properly formed XML document.
Renaming datastores.xml to datastorex.xml.bad allowed me to start the service. At which point I had to add back my datastores through the GUI.
Hopefully this will help someone else out. I did not find any other references in Google to this issue.
Try accessing via "http://localhost:8222" without the /sdk. You can also try the secure site via "https://localhost:8333".