user124991: I am running my lnd node since about 60 days. Looking at the file channel.db, I found it grows currently about 500M per day:
btc@xxx:~/.lnd$ ls -al ./data/graph/mainnet/channel.db
-rw------- 1 btc btc 15776518144 Oct 19 14:31 ./data/graph/mainnet/channel.db

-rw------- 1 btc btc 16874332160 Oct 21 12:59 channel.db

What is in that file that needs 16GB and when will it stop growing?
Running lnd 0.13.3 on i9-9900K CPU Ubuntu 20.04, bitcoin-core.
EDIT: New data from Oct 27 added:
It's now
-rw------- 1 btc btc 23279489024 Oct 27 09:20 channel.db

Growth of about 5 GB in 6 days with 2 amts forwarded and 1 new channel opened. Think I stop operating this. Someone with good alternatives to lnd?

user124991: Like vincenzopalazzo commented - it never stops growing by design. Solution is to add
db.bolt.auto-compact=true

to the lnd config. Then the db gets "compacted" (means cleaned-up here) at lnd's startup. But take care for enough disk space. Why it sometimes grows so fast could not be revealed.
The complete discussion is here: https://github.com/lightningnetwork/lnd/issues/5705

124991: <p>I am running my lnd node since about 60 days. Looking at the file channel.db, I found it grows currently about 500M per day:</p>
<pre><code>btc@xxx:~/.lnd$ ls -al ./data/graph/mainnet/channel.db
-rw------- 1 btc btc 15776518144 Oct 19 14:31 ./data/graph/mainnet/channel.db

-rw------- 1 btc btc 16874332160 Oct 21 12:59 channel.db
</code></pre>
<p>What is in that file that needs 16GB and when will it stop growing?
Running lnd 0.13.3 on i9-9900K CPU Ubuntu 20.04, bitcoin-core.</p>
<p>EDIT: New data from Oct 27 added:</p>
<p>It's now</p>
<pre><code>-rw------- 1 btc btc 23279489024 Oct 27 09:20 channel.db
</code></pre>
<p>Growth of about 5 GB in 6 days with 2 amts forwarded and 1 new channel opened. Think I stop operating this. Someone with good alternatives to lnd?</p>
 124991: <p>Like vincenzopalazzo commented - it never stops growing by design. Solution is to add</p>
<pre><code>db.bolt.auto-compact=true
</code></pre>
<p>to the lnd config. Then the db gets &quot;compacted&quot; (means cleaned-up here) at lnd's startup. But take care for enough disk space. Why it sometimes grows so fast could not be revealed.</p>
<p>The complete discussion is here: <a href="https://github.com/lightningnetwork/lnd/issues/5705" rel="nofollow noreferrer">https://github.com/lightningnetwork/lnd/issues/5705</a></p>
