<p><a target="_blank" rel="noopener noreferrer" href="https://user-images.githubusercontent.com/232186/94858600-3fe7c680-046e-11eb-9120-ffd65a458c47.png"><img width="554" alt="Screen Shot 2020-10-02 at 5 15 00" src="https://user-images.githubusercontent.com/232186/94858600-3fe7c680-046e-11eb-9120-ffd65a458c47.png" style="max-width:100%;"></a></p>
<p>Bisq currently uses the mempool.space API for fee estimation, selecting<br>
the "medium" priority fee, which generally works very well. However, if<br>
your timing is bad, sometimes the mempool can quickly fill up and your<br>
TX can get stuck for several hours or even days, which degrades the UX<br>
of Bisq.</p>
<p>This PR changes the Pricenode code to always use "high" priority fees,<br>
which would at the time of writing use 99 sat/vB instead of 85 sat/vB,<br>
and hopefully prevent the above-mentioned issue from occuring. Of<br>
course if the mempool is empty the minimum fees would still be used, as<br>
this only changes the "priority" from medium to high.</p>
<p>Fee estimates: <a rel="nofollow" href="https://mempool.space/">https://mempool.space/</a><br>
API endpoint: <a rel="nofollow" href="https://mempool.space/api/v1/fees/recommended">https://mempool.space/api/v1/fees/recommended</a></p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/bisq-network/bisq/pull/4585'>https://github.com/bisq-network/bisq/pull/4585</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Increase our mempool fee estimation from "medium" to "high" priority</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/bisq-network/bisq/pull/4585/files#diff-3e64274e885080e4fa36c5d557316e91">pricenode/src/main/java/bisq/price/mining/providers/MempoolFeeRateProvider.java</a>
    (2)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/bisq-network/bisq/pull/4585.patch'>https://github.com/bisq-network/bisq/pull/4585.patch</a></li>
  <li><a href='https://github.com/bisq-network/bisq/pull/4585.diff'>https://github.com/bisq-network/bisq/pull/4585.diff</a></li>
</ul>

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