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[Tut] [Fixed] Sendy Loading Lists Not Working (Loads Forever)

#1
[Fixed] Sendy Loading Lists Not Working (Loads Forever)

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<div class="kksr-legend" style="font-size: 19.2px;"> 5/5 – (1 vote) </div>
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<p>If you’re landing here, chances are you run a <strong><a rel="noreferrer noopener" href="https://sendy.co/" data-type="URL" data-id="https://sendy.co/" target="_blank">Sendy</a></strong> instance on Amazon EC2 hosting <em>“Simple Email Service (SES)”</em> for email marketing and experience the following problem:</p>
<ul>
<li><strong>Error 1</strong>: <em>“View All Lists” Not Working/Loading</em></li>
<li><strong>Error 2</strong>: <em>“Send Newsletter Now!” Not Working/Loading (Recipients loads forever)</em></li>
</ul>
<p>Here’s a screenshot on my Sendy instance — the lists don’t load!</p>
<div class="wp-block-image">
<figure class="aligncenter size-large"><img loading="lazy" decoding="async" width="1024" height="546" src="https://blog.finxter.com/wp-content/uploads/2023/02/image-179-1024x546.png" alt="" class="wp-image-1129903" srcset="https://blog.finxter.com/wp-content/uploads/2023/02/image-179-1024x546.png 1024w, https://blog.finxter.com/wp-content/uplo...00x160.png 300w, https://blog.finxter.com/wp-content/uplo...68x410.png 768w, https://blog.finxter.com/wp-content/uplo...ge-179.png 1219w" sizes="(max-width: 1024px) 100vw, 1024px" /><figcaption class="wp-element-caption"><strong>Error 1</strong>: <em>“View All Lists” Not Working/Loading</em></figcaption></figure>
</div>
<div class="wp-block-image">
<figure class="aligncenter size-full"><img decoding="async" loading="lazy" width="679" height="777" src="https://blog.finxter.com/wp-content/uploads/2023/02/image-180.png" alt="" class="wp-image-1129904" srcset="https://blog.finxter.com/wp-content/uploads/2023/02/image-180.png 679w, https://blog.finxter.com/wp-content/uplo...62x300.png 262w" sizes="(max-width: 679px) 100vw, 679px" /><figcaption class="wp-element-caption"><strong>Error 2</strong>: <em>“Send Newsletter Now!” Not Working/Loading (Recipients loads forever)</em></figcaption></figure>
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<h2>How to Fix?</h2>
<p>To fix these two errors, you simply need a bigger Amazon EC2 instance in all likelihood. Per default, Sendy installs the Amazon <code>t2.micro</code> instance that has only 1 GiB of memory. </p>
<p>For large lists, however, this is not enough. The instance is likely overwhelmed with all the list data if you have, say, 100k+ subscribers. To overcome the small memory, the instance needs to store parts of the “memory data” (i.e., the list) on stable storage, which reduces performance by orders of magnitude. Hence, the timeout on all major browsers.</p>
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<figure class="aligncenter size-large"><img decoding="async" loading="lazy" width="1024" height="76" src="https://blog.finxter.com/wp-content/uploads/2023/02/image-181-1024x76.png" alt="" class="wp-image-1129988" srcset="https://blog.finxter.com/wp-content/uploads/2023/02/image-181-1024x76.png 1024w, https://blog.finxter.com/wp-content/uplo...300x22.png 300w, https://blog.finxter.com/wp-content/uplo...768x57.png 768w, https://blog.finxter.com/wp-content/uplo...ge-181.png 1153w" sizes="(max-width: 1024px) 100vw, 1024px" /><figcaption class="wp-element-caption"><em>Amazon EC2 instance types</em></figcaption></figure>
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<h2>How to Increase the EC2 Instance Running SES?</h2>
<p>To increase the capabilities of your instance and fix this error, just follow these three steps:</p>
<ul>
<li><strong>Step 1: </strong>Stop the instance at the Amazon EC2 region: <a rel="noreferrer noopener" href="https://eu-central-1.console.aws.amazon.com/ec2/home" target="_blank">https://eu-central-1.console.aws.amazon.com/ec2/home</a></li>
<li><strong>Step 2: </strong>Wait for the instance to stop and change the instance type from <code>t2.micro</code> to <code>t2.small</code> to double its memory capabilities. If you need more power later, try to increase it even more. See instance types <a rel="noreferrer noopener" href="https://ec2pricing.net/" data-type="URL" data-id="https://ec2pricing.net/" target="_blank">here</a>.</li>
<li><strong>Step 3: </strong>Restart the instance again. And voilà – your Sendy installation should work again!</li>
</ul>
<figure class="wp-block-image size-large"><img decoding="async" loading="lazy" width="1024" height="323" src="https://blog.finxter.com/wp-content/uploads/2023/02/image-177-1024x323.png" alt="" class="wp-image-1129898" srcset="https://blog.finxter.com/wp-content/uploads/2023/02/image-177-1024x323.png 1024w, https://blog.finxter.com/wp-content/uplo...300x95.png 300w, https://blog.finxter.com/wp-content/uplo...68x242.png 768w, https://blog.finxter.com/wp-content/uplo...ge-177.png 1396w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>
<p>See here: <a href="https://sendy.co/forum/discussion/669/ec2-micro-strong-enough-to-sendy-50k-mails" target="_blank" rel="noreferrer noopener">https://sendy.co/forum/discussion/669/ec2-micro-strong-enough-to-sendy-50k-mails</a></p>
<div class="wp-block-image">
<figure class="aligncenter size-large"><img decoding="async" loading="lazy" width="1024" height="210" src="https://blog.finxter.com/wp-content/uploads/2023/02/image-178-1024x210.png" alt="" class="wp-image-1129899" srcset="https://blog.finxter.com/wp-content/uploads/2023/02/image-178-1024x210.png 1024w, https://blog.finxter.com/wp-content/uplo...300x62.png 300w, https://blog.finxter.com/wp-content/uplo...68x158.png 768w, https://blog.finxter.com/wp-content/uplo...ge-178.png 1222w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>
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<p>I hope this worked for you – thanks for checking out this tutorial! <img src="https://s.w.org/images/core/emoji/14.0.0/72x72/2665.png" alt="♥" class="wp-smiley" style="height: 1em; max-height: 1em;" /> </p></p>
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https://www.sickgaming.net/blog/2023/02/...s-forever/
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