Perhaps this helps?<div><a href="https://help.basho.com/entries/20141178-why-does-it-seem-that-bitcask-merging-is-only-triggered-when-a-riak-node-is-restarted">https://help.basho.com/entries/20141178-why-does-it-seem-that-bitcask-merging-is-only-triggered-when-a-riak-node-is-restarted</a><br clear="all">
<span style="font-family:Helvetica;font-size:medium"><b><font color="#255AFC"><div><font color="#000000" face="arial"><span style="font-weight:normal;font-size:small"><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse"><br>
</span></span></font></div><div><font color="#000000" face="arial"><span style="font-weight:normal;font-size:small"><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse">Additionally, maybe tweaking the threshold parameters for a merge is needed. Following link discusses threshold configuration, merge process, etc. There are further tuning tips further down this page:</span></span></font></div>
<div><font color="#000000" face="arial"><span style="font-weight:normal;font-size:small"><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse"><a href="http://wiki.basho.com/Bitcask-Configuration.html">http://wiki.basho.com/Bitcask-Configuration.html</a></span></span></font></div>
<div><font color="#000000" face="arial"><span style="font-weight:normal;font-size:small"><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse"><br><table border="0" cellpadding="2" cellspacing="2" width="100%">
<tbody><tr><td colspan="1" rowspan="2" valign="top" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font-family:arial, sans-serif"><a href="http://www.loomlearning.com/" style="color:rgb(42, 93, 176)" target="_blank"><img src="http://www.loomlearning.com/loom.gif"></a><br>
</td><td valign="top" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font-family:arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><b><i><span style="font-family:arial;font-style:normal;font-weight:normal;font-size:small"><table border="0" cellpadding="2" cellspacing="2" width="100%" style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse">
<tbody><tr><td valign="top" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font-family:arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><i><b lang="sr-Latn-RS">Jonathan Langevin</b></i><br>
<font color="gray"><small>Systems Administrator</small></font></font><br></td></tr><tr><td valign="top" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font-family:arial, sans-serif;border-top-width:1px;border-top-style:solid;border-top-color:black">
<font color="gray"><small><font face="Helvetica, Arial, sans-serif"><b>Loom Inc.</b><br>Wilmington, NC: (910) 241-0433 - <a href="mailto:jlangevin@loomlearning.com" style="color:rgb(42, 93, 176)" target="_blank">jlangevin@loomlearning.com</a> - <a href="http://www.loomlearning.com/" style="color:rgb(42, 93, 176)" target="_blank">www.loomlearning.com</a> - Skype: intel352</font></small></font></td>
</tr></tbody></table></span></i></b></font></td></tr></tbody></table></span></span></font></div></font></b></span><br>
<br><br><div class="gmail_quote">On Fri, Jul 29, 2011 at 7:36 PM, Steve Webb <span dir="ltr"><<a href="mailto:swebb@gnip.com">swebb@gnip.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
So, I'm still working on an "insert and never delete" use of riak.  I'm expiring data after a certain amount of time, but from what I've heard/read, it's not possible to trigger a merge at all with my usage pattern.<br>

<br>
So, is there a way for me to write something in erlang or something that I can throw into cron to do periodic merges and clean things up?<br>
<br>
- Steve<br><font color="#888888">
<br>
--<br>
Steve Webb - Senior System Administrator for <a href="http://gnip.com" target="_blank">gnip.com</a><br>
<a href="http://twitter.com/GnipWebb" target="_blank">http://twitter.com/GnipWebb</a><br>
<br>
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