Lightsail Instance 1GB/1Core Keeps going down

Question

I've tried running a LightSail WordPress instance for awhile now (4-5 months) and I'm having some stability problems.  I started out with the low end instance 512MB/1Core and started having issues where it will occasionally go down.  It says still running but it's unreachable.  This is usually coincided with some network traffic and a short CPU spike.  This usually doesn't last very long but it never comes back up.  If I stop, wait, start then it works again.  If I add a R53 healthcheck it will go down within 24 hours.  I only get about 50 visits a day (max) to the site so I know it's very low traffic.  
  
I thought maybe the instance was underpowered so I upped it to 1GB/1core and it went down again today after running only about 1 day.  
  
There's clearly something wrong here.  Can I get some assistance on determining what is going on here?  
  
Thanks in advance!

Accepted Answer

I'm able to run a number of basic wordpress servers in a single 512mb lightsail instance.  
  
The only thing I did was buy 8gb of extra storage and make it a swap partition.  
  
Before I had the swap partition, the mySQL server was constantly crashing due to OOM problems.  
  
I blogged about it here: https://www.geekyramblings.net/2018/02/01/amazon-lightsail#512mb-isnt-a-lot-of-memory  
  
david

Answer

This definitely fixed my problem.  After implementing a swapfile, the instance has been stable ever since.  
  
I appreciate your help!!

Answer

David, thank you.  I will give this a shot and see if it fixes my problem.  I appreciate you taking the time to respond to my question.  
  
I will let you know how it works out!  
  
Regards,  
  
Shawn

Lightsail Instance 1GB/1Core Keeps going down

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