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Frank's Weblog

Frank's Weblog

https://nyan.im/
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Understanding Systemd Timer: Troubleshooting `D-Bus connection terminated` Error

<p>We run a SaaS service, when a customer creates an instance, we use terraform to create an EC2 instance and relevant cloud infrastructures. This EC2 is created with a prebuilt AMI, with our software installed. This software will be referred to as codename sinatra. After the EC2 is created, a script setup.sh will run to configure sinatra, and it will restart sinatra a few times with Systemctl.</p> <p>We noticed one of the customers has a possibility to fail when creating an instance, with the error message below(non-relevant messages are omitted):</p> <p>...Warning! D-Bus connection Terminated. Failed to wait for response: Connection reset by peer...</p> <p>The post <a href="https://nyan.im/p/systemd-dbus-connection-terminated-en">Understanding Systemd Timer: Troubleshooting `D-Bus connection terminated` Error</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2026/2/12
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理解Systemd Timer：一次`D-Bus connection terminated`错误排查

<p>我们的服务是一个SaaS服务，每当客户创建一个实例时，我们会使用terraform在云环境中创建一个EC2实例以及相关的基础设施。这个EC2使用一个预先构建的AMI创建，这个AMI当中已经安装了我们所维护的软件，这个软件在本文中将使用代号sinatra指代。在EC2被创建后，会自动运行一个脚本setup.sh来配置sinatra，期间会使用systemctl重启sinatra几次。</p> <p>我们发现一位客户在创建实例时有一定几率会失败，错误信息如下（一些无关信息已经被省略）：</p> <p>...Warning! D-Bus connection Terminated. Failed to wait for response: Connection reset by peer...</p> <p>The post <a href="https://nyan.im/p/systemd-dbus-connection-terminated-zh">理解Systemd Timer：一次`D-Bus connection terminated`错误排查</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2026/2/12
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Learning Languages Effectively with Anki

<p>As mentioned earlier, I started learning French from scratch and achieved CLB/NCLC 7 (equivalent to CEFR B2-C1) in 10 months. This is a very difficult task to accomplish, and I believe Anki played a crucial role in this process. </p> <p>Throughout the entire learning process, I did not attend any traditional courses. At the beginning, I followed the A1 and A2 online courses from NLF Academy &#124; Real French Classes - YouTube, using the Edito textbook. I spent two months completing A1. Later, because of the time pressure, after halfway through A2, I abandoned the courses and switched to self-study and exam preparation. During this process, I intensively used Anki to learn grammar, vocabulary, expressions, and other language knowledge, with the maximum number of cards reviewed per day reaching over 500. Although the process was very painful, the results were very significant.</p> <p>This post will describe how I used Anki for learning language for exam and hobby.</p> <p>The post <a href="https://nyan.im/p/anki-learn-language-en">Learning Languages Effectively with Anki</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2026/1/27
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使用Anki高效学习语言

<p>前文提到，我为了加拿大移民在从零开始学习法语，并且在10个月内考出了CLB/NCLC 7（相当于于欧标B2-C1）的成绩。这是一个非常难以完成的任务，我认为在这个过程中，Anki功不可没。</p> <p>我在整个学习过程中没有上过传统意义上的课程。在入门阶段入门的课程我使用了NLF Academy &#124; Real French Classes - YouTube的A1和A2网课，使用的是Edito教材。我用了两个月时间学完了A1。之后又因为急于赶进度，在A2学到一半之后即放弃了跟随课程，转而自学及备考。在这个过程中，我高强度使用Anki学习语法，单词，语句，等语言知识点，最多的时候每天复习的卡片数量达到了500+之多。虽然过程非常痛苦，但是效果也非常显著。</p> <p>本文将讲述我如何使用Anki以应试和兴趣目的学习语言的过程。</p> <p>The post <a href="https://nyan.im/p/anki-learn-language-zh">使用Anki高效学习语言</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2026/1/27
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Say Goodbye to H1B Anxiety – A Complete Guide for Immigration to Canada via Express Entry

<p>In late 2023, I began considering Canada’s Express Entry after failing the H1B lottery three times. After a challenging two-year journey, I finally became a Canadian Permanent Resident in 2025. This article details the entire process of applying for and receiving Canadian PR from abroad through the French language category.</p> <p>This article serves only as a sharing of personal experience and does not constitute legal advice. My application took place in mid-2025, and the information may become inaccurate over time. If you have questions regarding your application, please refer to the official websites of relevant departments or hire a Regulated Canadian Immigration Consultant (RCIC) for consultation.</p> <p>Express Entry (EE) is the most mainstream, convenient, and efficient pathway for skilled immigration to Canada. The way it works is to score applicants via the Comprehensive Ranking System (CRS). The main metrics include age, education, language, and work experience. Typically, every two weeks, Immigration, Refugees and Citizenship Canada (IRCC) conducts draws. A cutoff score is determined based on the score of candidates in the pool and the number of profiles they intend to invite. Applicants meeting this score receive an Invitation to Apply (ITA) and submit their application. Most EE applications receive a decision within 6 months.</p> <p>The post <a href="https://nyan.im/p/canada-express-entry-en">Say Goodbye to H1B Anxiety &#8211; A Complete Guide for Immigration to Canada via Express Entry</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2025/12/29
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告别H1B焦虑 – 加拿大Express Entry技术移民全流程指南

<p>H1B三抽不中后，我从2023年底开始考虑加拿大Express Entry。经过两年的各种折腾，终于在2025年底正式成为加拿大永久居民。本文将讲述通过法语定向在境外申请并获批加拿大PR的全过程。</p> <p>本文仅作为个人经验的分享，不构成法律建议。我的申请发生在2025年中，文中内容可能会随时间变化而不再准确。如果在申请过程中有疑问，请查询相关部门的官方网站或雇佣持牌移民顾问(Regulated Canadian Immigration Consultants, RCIC)咨询。</p> <p>Express Entry（下文简称EE）是加拿大的最主流且方便快捷的技术移民途径。Express Entry的运作方式是为申请者通过Comprehensive Ranking System(CRS)打分，打分的主要指标包括年龄，学历，语言，工作经验等。通常每两周，加拿大移民、难民和公民部(Immigration, Refugees and Citizenship Canada, IRCC)会执行若干项目的抽取(draw)，每次抽取会根据池中人数和邀请人数确定一个分数线，达到分数线的申请者会收到邀请(Invitation to Apply, ITA)并提交申请。Express Entry的绝大多数申请会在6个月内收到决定。</p> <p>The post <a href="https://nyan.im/p/canada-express-entry-zh">告别H1B焦虑 &#8211; 加拿大Express Entry技术移民全流程指南</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2025/12/29
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Project Miata – The Problematic Brake Job

<p>I recently replaced the brake rotors and pads on my Miata. Although neither the rotors nor the pads were worn down to the point of needing replacement, I was experiencing vibration when braking at high speeds, likely due to rusted or warped rotors. So, I decided to replace all the rotors and pads on the car. </p> <p>The post <a href="https://nyan.im/p/project-miata-brake-en">Project Miata &#8211; The Problematic Brake Job</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2025/11/13
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Project Miata – 问题百出的刹车维护

<p>最近我更换了Miata上的刹车盘和刹车片。虽然刹车盘和刹车片都没有磨损到需要更换的程度，但是可能由于刹车盘生锈或变形，在高速踩刹车的时候会出现震动的问题，于是我决定更换全车的刹车盘和片。</p> <p>The post <a href="https://nyan.im/p/project-miata-brake-zh">Project Miata &#8211; 问题百出的刹车维护</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2025/11/13
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Sending Passport from USA to Ottawa for Canadian PR Visa Stamping

<p>Recently, we are approved Canadian permanent residency through Express Entry, we received a passport request letter requesting us to send the passport to Ottawa for visa stamping.<br /> In the vast majority of countries, passport submission for visa stamping is typically handled through a local VFS Visa Application Center (VAC). For applicants in the United States, some may be required to go through VFS, while others may be instructed to mail their passports to the Case Processing Center (CPCO) in Ottawa. This guide does not apply if your Passport Request letter instructs you to submit via VFS/VAC. Please read your Passport Request letter carefully. If there is any conflict between the instructions in your letter and this guide, follow the instructions in the letter.</p> <p>The post <a href="https://nyan.im/p/canadian-pr-visa-stamping-ottawa-en">Sending Passport from USA to Ottawa for Canadian PR Visa Stamping</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2025/11/6
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加拿大PR贴签：从美国寄护照到渥太华

<p>近期通过Express Entry获批了加拿大PR，收到贴签信要求寄护照到渥太华贴签。</p> <p>在绝大多数国家，贴签通常是通过当地的VFS签证中心，美国的申请者一部分会被要求通过VFS贴签，也有可能会被要求直接寄到渥太华的Case Processing Center(CPCO)。如果你的贴签信指示你通过VFS/VAC贴签，则本文不适用。请仔细阅读贴签信中的每一句话，如果贴签信中的指示和本文冲突，以贴签信为准。</p> <p>The post <a href="https://nyan.im/p/canadian-pr-visa-stamping-ottawa-zh">加拿大PR贴签：从美国寄护照到渥太华</a> appeared first on <a href="https://nyan.im">Frank&#039;s Weblog</a>.</p>

2025/11/6
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