<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Sharding almost solves the problem (for inactive blocks), but it was considered as stable just today :)</div><div class=""><br class=""></div><div class=""><a href="http://blog.gluster.org/2016/06/glusterfs-3-8-released/" class="">http://blog.gluster.org/2016/06/glusterfs-3-8-released/</a></div><div class=""><span style="color: rgb(51, 51, 51); font-family: Helvetica, Arial, sans-serif; background-color: rgb(255, 255, 255);" class="">- Sharding is now stable for VM image storage.</span></div><br class=""><div apple-content-edited="true" class="">
<div class=""><div class="">--</div><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="">Dmitry Glushenok</div><div class="">Jet Infosystems</div><div class=""><br class=""></div></div></div></div></div></div></div><div><blockquote type="cite" class=""><div class="">15 июня 2016 г., в 19:42, Gandalf Corvotempesta <<a href="mailto:gandalf.corvotempesta@gmail.com" class="">gandalf.corvotempesta@gmail.com</a>> написал(а):</div><br class="Apple-interchange-newline"><div class="">2016-06-15 18:12 GMT+02:00 Дмитрий Глушенок <<a href="mailto:glush@jet.msk.su" class="">glush@jet.msk.su</a>>:<br class=""><blockquote type="cite" class="">Hello.<br class=""><br class="">May be because of current implementation of rotten bits detection - one hash<br class="">for whole file. Imagine 40 GB VM image - few parts of the image are modified<br class="">continuously (VM log files and application data are constantly changing).<br class="">Those writes making checksum invalid and BitD has to recalculate it<br class="">endlessly. As the result - checksum of VM image can never be verified.<br class=""></blockquote><br class="">I think you are right<br class="">But what about sharding? In this case, the hash should be created for<br class="">each shard and not the whole file.<br class=""></div></blockquote></div><br class=""></body></html>