Resolver 2 Not Adjusted
Darios Uclaray
From some weeks I try to write a code treating the resolver signals and measuring the phase between it and the motor phase (they have the same number of poles, so both signals have the same frequency). I don't have any demodulation kit on Labview so I 've done an home-made demodulation (sinwtcosA -> cosA and sinwtsinA -> sinA) that gives sines with some imperfections.
OK I've realized the demodulation helped with the AM theory, I think I've done quite the same as you. The output signal is exactly at the good frequency but with a phase shift with the original enveloppe. I read it is normal in AM demodulation (and in radio listening, it is not a pb), and that I need to make a Phase Locked Loop.
The resolver alignment error will have a slight wobble due to manufacturing imperfections, convert to rms error/max error. Then repeat the test in both directions, adjusting the resolver alignment until you get the same error in both directions.
After a few reboots the problem reappears. It appears that the modification-check done by dns-resolver has a bug in it. I have seen this phenomenon on two machines. Once on my laptop (wireless), and several times on a wired box. The box may not have been properly shut down, but I know my laptop was.
This is part of syconfig-netconfig package (/etc/netconfig.d/dns-resolver). Note that implementation was changed in Leap 15.1, it now generates file in private directory and avoids keeping and checking md5sum completely. If you want to use netconfig at all you are expected to link /etc/resolv.conf to this private file.
I'm planning on using a set of a little bit more sophisticated conventions to import assets in my webpack project. So I'm trying to write a plugin that should rewrite parts of requested module locators and then pass that down the resolver waterfall.
The docs were missing the third parameter (message) of the doResolve() method, resulting in an error when using the code as shown there. That's why I had given up on the doResolve() method when I found it before putting the question up on SO.
When 123.123.123.123 goes down DNS queries become impossible slow, I'm assuming that Linux retries the first one each time. Is there a way to get linux to be smarter about this? Health checks or something? Or do I misunderstand how resolv.conf should work?
What happens is that the resolver library will try to use the nameservers listed in /etc/resolv.conf from top to bottom if no rotate option is present. If rotate is present, then it does a round-robin selection. If the resolver goes to the bottom of the list and the server doesn't respond within X seconds (considering X is the timeout parameter) then it will repeat the whole process of round robin selection again for Y-1 times (where Y is the value of attempts).
However a bit of caution would be to avoid dig and friends for testing these resolv.conf options. As they avoid resolver library and directly ask the nameservers. getent hosts is the better command to use. Note that anything that uses glibc resolver will have to obey /etc/resolv.conf file.
I double checked that my dynamic/$SERVICE.toml file referenced the same certResolver = "letsencrypt" and yet i was still getting errors akin to the router $SERVICE@file uses a non-existent resolver: letsencrypt.
As soon as i removed the empty json file and adjusted my systemd checks to not mark the service as failed if the file didn't exist on disk, traefik immediately started up and wrote the expected JSON to disk.
In the traefik 1.X days, an empty acme.json file was not a problem... the file was simply overwritten w/ . the correct content. No note of this behavior change is made in the migration guide, so i'm creating this post in the hopes that some other frustrated is shepherded this way by the SEO gods in a moment of need.
TL;DR: Traefik 2.x does not indicate when the acme.json file could be opened but contains invalid data. In this case, the certificate resolver silently fails resulting in the cryptic "router uses non-existant resolver..." messages. Do not attempt to manage the JSON file outside of traefik; even a simple touch acme.json will break things w/o much of a clue in the logs.
Adjusts all references to path to destination in the pages specified by refPaths. If isExact() is true only exact references to path are adjusted, otherwise all references to child resources are adjusted, too.
Ivy comes bundled with some default settings which makes it pretty simple to use in a typical environment. This tutorial, which is close to a reference document, explains what those default settings are and how they can be adjusted to your needs.
To fully understand the concept of settings and what you can do with them, we suggest reading other tutorials related to settings (like Multiple Resolvers and Dual Resolver) or the Settings Files reference documentation.
The local repository is particularly useful when you want to do something without being disturbed by anything else happening in the environment. This means that whenever Ivy is able to locate a module in this repository it will be used, no matter what is available in others.
For instance, if you have a module declaring a dependency on the module foo with a revision of latest.integration, then if a revision of foo is found in the local repository, it will be used, even if a more recent revision is available in other repositories.
This may be disturbing for some of you, but imagine you have to implement a new feature on a project, and in order to achieve that you need to modify two modules: you add a new method in module foo and exploit this new method in module bar. Then if you publish the module foo to your local repository, you will be sure to get it in your bar module, even if someone else publishes a new revision of foo in the shared repository (this revision not having the new method you are currently adding).
But be careful, when you have finished your development and publish it on the shared repository, you will have to clean your local repository to benefit from new versions published in the shared repository.
By default, the local repository lies in $ivy.default.ivy.user.dir/local. This is usually a good place, but you may want to modify it. No problem, you just have to set the ivy.local.default.root Ivy variable to the directory you want to use:
By default, the shared repository lies in $ivy.default.ivy.user.dir/shared. This is fine if you work alone, but the shared repository is supposed to be, mmm, shared! So changing this directory is often required, and it is usually modified to point to a network shared directory. You can use the ivy.shared.default.root variable to specify a different directory. Moreover, you can also configure the layout with variables similar to the ones used for the local repository:
Despite its ease of use, we suggest reading the Best practices to have a good understanding of the pros and cons of using a public unmanaged repository before depending on such a repository for your enterprise build system.
No problem, Ivy is very flexible and can be configured with specific settings to match your needs and environment. But before considering writing your own settings from scratch, we suggest reading the following where you will learn how to leverage a part of the default settings and adjust the rest.
OK, so not much info here, except a lot of inclusions. These inclusions have been done on purpose so that you can easily change only one part of the Ivy settings and easily benefit from the rest. For example, if you want to define your own public resolver, you will just have to configure Ivy with the settings like the following:
To finish this example, you have to write your own Ivy settings file (that you will make available at -public.xml in this example) for defining your own public resolver. For instance, the contents of such a file could be:
The information contained in this article has been verified as up-to-date on the date of the original publication of the article. HashiCorp endeavors to keep this information up-to-date and correct, but it makes no representations or warranties of any kind, express or implied, about the ongoing completeness, accuracy, reliability, or suitability of the information provided.
All information contained in this article is for general information purposes only. Any reliance you place on such information as it applies to your use of your HashiCorp product is therefore strictly at your own risk.
This guide provides instructions on customizing request timeouts within Consul's Service Mesh, specifically tailored for services, whether they have an Ingress Gateway or not. It encompasses modifying timeouts from the default 15 seconds to accommodate services that necessitate additional processing time, effectively mitigating 504 Gateway Timeout errors. The procedure entails updating the service-router or service-resolver with adjusted timeout settings and is indispensable for operators managing services with prolonged processing requirements. This article complements the content on Override Envoy's local app request timeout and can be used in conjunction with it for comprehensive timeout management within the Service Mesh architecture.
When services in the mesh have longer request times, operators may encounter more 504 Gateway timeout errors even if the local app request timeout is overridden. This is due to the downstream needing more time to wait for the entire request to finish. By default the timeout is 15 seconds, but with the following steps, this can be decreased or increased allowing upstream requests to be prolonged.
You have the option to fine-tune the request timeout for a service at the ingress gateway level, offering a strategic approach to prevent bottlenecks. This level of control allows for precise adjustments, particularly beneficial for data-intensive services requiring additional time to complete requests.
This is a common problem for many Sylius users. Sometimes the checkout process we have designed is not suitable for your custom business needs.Therefore you need to learn how to modify it, when you will need to for example:
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