user33014: I'm trying to run Bitcoin Core service with full node verification on Ubuntu on testnet and it keeps resetting. The verification increases to 0.3, then resets to 0, for 2 days already. Debug.log records look like there was a process crash, but no reason mentioned: 

The server is Digital Ocean's droplet, I've already tried to increase the server CPU/RAM, no luck. Want to find the reason of what is going on here, what exactly causes such behavior.

user63817: As 0x49D1 reported: reducing the Bitcoin Core database cache helped to reduce memory usage, which caused the crashes while syncing.
In bitcoin.config dbcache=<n> or as command-line argument -dbcache=<n> where n is the database cache size in megabytes (default: 300)
Source

33014: <p>I'm trying to run Bitcoin Core service with full node verification on Ubuntu on testnet and it keeps resetting. The verification increases to 0.3, then resets to 0, for 2 days already. Debug.log records look like there was a process crash, but no reason mentioned: 
<a href="https://i.stack.imgur.com/kZJTQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kZJTQ.png" alt=""></a><br>
The server is Digital Ocean's droplet, I've already tried to increase the server CPU/RAM, no luck. Want to find the reason of what is going on here, what exactly causes such behavior.</p>
 63817: <p>As 0x49D1 reported: reducing the Bitcoin Core database cache helped to reduce memory usage, which caused the crashes while syncing.</p>

<p>In bitcoin.config <code>dbcache=&lt;n&gt;</code> or as command-line argument <code>-dbcache=&lt;n&gt;</code> where <code>n</code> is the database cache size in megabytes (default: 300)</p>

<p><a href="https://en.bitcoin.it/wiki/Running_Bitcoin" rel="nofollow noreferrer">Source</a></p>
