user63750: In ~/.bitcoin/bitcoin.conf I set prune=5000.
That reduced the blockchain size to 5G.
du -sch /mnt/btrfs/bitcoind/*
...
5.0G   /mnt/btrfs/bitcoind/blocks
2.8G   /mnt/btrfs/bitcoind/chainstate
17G    /mnt/btrfs/bitcoind/indexes
....
25G    total

This is indeed a x10 improvement, before pruning, my bitcoind data directory was roughly 250G. Yet, it's still 25G total. I need to run on a small SD card where there is only 10G of free space.
Now /mnt/btrfs/bitcoind/indexes/txindex/*.ldb files take up the majority of space, 17G.
Is there a way to prune the txindex/*.ldb files?

user48884: If you have turned off -txindex (which should have happened when you enabled pruning), then you can just delete the the indexes/txindex folder as it isn't being used.

63750: <p>In <code>~/.bitcoin/bitcoin.conf</code> I set <code>prune=5000</code>.</p>

<p>That reduced the blockchain size to 5G.</p>

<pre><code>du -sch /mnt/btrfs/bitcoind/*
...
5.0G   /mnt/btrfs/bitcoind/blocks
2.8G   /mnt/btrfs/bitcoind/chainstate
17G    /mnt/btrfs/bitcoind/indexes
....
25G    total
</code></pre>

<p>This is indeed a x10 improvement, before pruning, my bitcoind data directory was roughly 250G. Yet, it's still 25G total. I need to run on a small SD card where there is only 10G of free space.</p>

<p>Now <code>/mnt/btrfs/bitcoind/indexes/txindex/*.ldb</code> files take up the majority of space, 17G.</p>

<p>Is there a way to prune the txindex/*.ldb files?</p>
 48884: <p>If you have turned off <code>-txindex</code> (which should have happened when you enabled pruning), then you can just delete the the <code>indexes/txindex</code> folder as it isn't being used.</p>
