Answers.Body: <p>It appears those emails are being generated by something called <a href="https://www.interserver.net/tips/kb/disable-lfd-excessive-resource-usage-alert/" rel="nofollow noreferrer">Config Server Firewall</a> running on your server.  I don't know if your host gives you access to configure settings in it, but it looks like they have allocated you 512M of memory and you're exceeding that.</p>
  
  <p>You can hit that easy enough with image transforms and spikes/surges in traffic can amplify that effect.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-02-02T21:01:23.073Z
Answers.Text: Thanks @brad-bell. Yes, these emails are coming from CSF. I've increased PT_USERMEM to 1024MB so that should help quite a bit. I still don't know the difference btw virtual memory and swap, but it's encouraging to know that I can safely set a high threshold. And it's especially helpful to know that a traffic spike could be causing virtual memory to be used. Cheers!
Answers.UserDisplayName: plaintxt
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-02-02T21:10:31.197Z
Answers.Text: Oh and here's [Digital Ocean's explanation of Virtual Memory](https://www.digitalocean.com/community/tutorials/how-to-configure-virtual-memory-swap-file-on-a-vps).
Answers.UserDisplayName: plaintxt
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-02-01T23:33:04.813Z
Answers.LastActivityDate: 2018-02-01T23:33:04.813Z
Answers.UserDisplayName: Brad Bell
Body: <p>Our server is generating lots of emails that follow this template:</p>
  
  <p><strong>subject</strong>: </p>
  
  <pre><code>lfd on host.foo.com: Excessive resource usage: foo (24056 (Parent PID:16356))
  </code></pre>
  
  <p><strong>body</strong>:</p>
  
  <pre><code>Time:         Wed Jan 31 11:31:20 2018 -0500
  Account:      foo
  Resource:     Virtual Memory Size
  Exceeded:     556 &gt; 512 (MB)
  Executable:   /opt/cpanel/ea-php71/root/usr/bin/php-cgi
  Command Line: /opt/cpanel/ea-php71/root/usr/bin/php-cgi /home/foo/public_html/index.php
  PID:          24056 (Parent PID:16356)
  Killed:       No
  </code></pre>
  
  <p>Sometimes I can attribute these to image transforms, but other times they appear somewhat randomly. I received 13 in a row earlier today. I've seen this type of email from several servers that run Craft sites. I've researched excessive resource emails in general, but the answer always seems to be "just add it to csf.pignore" - which I don't want to do.</p>
  
  <p>So, I'm wondering if anyone knows what Craft process may be generating this type of email. I don't think that we're doing anything out of the ordinary. </p>
  
  <p>Thanks!</p>
  
Tags: <server>
Title: Excessive resource usage / virtual memory size
ThreadText: # Excessive resource usage / virtual memory size
  
  (Asked by: username_0 on 2018-01-31)
  
  Our server is generating lots of emails that follow this template:
  
  **subject**:
  
  ```
  lfd on host.foo.com: Excessive resource usage: foo (24056 (Parent PID:16356))
  
  ```
  
  **body**:
  
  ```
  Time:         Wed Jan 31 11:31:20 2018 -0500
  Account:      foo
  Resource:     Virtual Memory Size
  Exceeded:     556 > 512 (MB)
  Executable:   /opt/cpanel/ea-php71/root/usr/bin/php-cgi
  Command Line: /opt/cpanel/ea-php71/root/usr/bin/php-cgi /home/foo/public_html/index.php
  PID:          24056 (Parent PID:16356)
  Killed:       No
  
  ```
  
  Sometimes I can attribute these to image transforms, but other times they appear somewhat randomly. I received 13 in a row earlier today. I've seen this type of email from several servers that run Craft sites. I've researched excessive resource emails in general, but the answer always seems to be "just add it to csf.pignore" - which I don't want to do.
  
  So, I'm wondering if anyone knows what Craft process may be generating this type of email. I don't think that we're doing anything out of the ordinary.
  
  Thanks!
  
  **Tags:** server
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-02-01. Score: 0 | Accepted answer
  
  It appears those emails are being generated by something called [Config Server Firewall](https://www.interserver.net/tips/kb/disable-lfd-excessive-resource-usage-alert/) running on your server. I don't know if your host gives you access to configure settings in it, but it looks like they have allocated you 512M of memory and you're exceeding that.
  
  You can hit that easy enough with image transforms and spikes/surges in traffic can amplify that effect.
  
  > **Comments:**
  > **username_0**: Thanks @username_1. Yes, these emails are coming from CSF. I've increased PT_USERMEM to 1024MB so that should help quite a bit. I still don't know the difference btw virtual memory and swap, but it's encouraging to know that I can safely set a high threshold. And it's especially helpful to know that a traffic spike could be causing virtual memory to be used. Cheers!  
  > **username_0**: Oh and here's [Digital Ocean's explanation of Virtual Memory](https://www.digitalocean.com/community/tutorials/how-to-configure-virtual-memory-swap-file-on-a-vps).  
  
  ---
  
  