<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 apple-content-edited="true" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi,</div><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""></div><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">changelog is not enabled. I’ve checked /proc/fs/lustre/mdd/NAMEOFMDT/changelog_users and got:</div><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""></div><div style="orphans: auto; text-align: start; text-indent: 0px; widows: auto; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">current index: 0<br class="">ID index</div><div style="orphans: auto; text-align: start; text-indent: 0px; widows: auto; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""></div><div style="orphans: auto; text-align: start; text-indent: 0px; widows: auto; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Thanks,</div><div style="orphans: auto; text-align: start; text-indent: 0px; widows: auto; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Radu</div><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class="Apple-interchange-newline">
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</div></div></div><br class=""><div><blockquote type="cite" class=""><div class="">On 22 Apr 2015, at 19:52, Colin Faber <<a href="mailto:cfaber@gmail.com" class="">cfaber@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Do you have changelogs enabled?</div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Wed, Apr 22, 2015 at 2:14 AM, Radu Popescu <span dir="ltr" class=""><<a href="mailto:radu.popescu@amoma.com" target="_blank" class="">radu.popescu@amoma.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class=""><div class="">Hi,</div><div class=""><br class=""></div><div class="">I have the following Lustre setup:</div><div class=""><br class=""></div><div class="">- servers</div><div class="">- number: 9</div><div class="">- Lustre version: 2.5.3</div><div class="">- OS: CentOS 6.6<br class="">- RPM URL: <a href="https://downloads.hpdd.intel.com/public/lustre/lustre-2.5.3/el6/server/RPMS/" target="_blank" class="">https://downloads.hpdd.intel.com/public/lustre/lustre-2.5.3/el6/server/RPMS/</a></div><div class=""><br class=""></div><div class="">- clients</div><div class="">- number: 90</div><div class="">- Lustre version: 2.5.56</div><div class="">- OS: Debian Wheezy</div><div class="">- Packages were manually created from sources</div><div class="">- all clients have all 9 Lustre mountpoints</div><div class=""><br class=""></div><div class="">Lustre setup:</div><div class=""><br class=""></div><div class="">MGS + MDT + OST all stay on a single LUN which has a VG (160GB) created and 3 LVs for each of the partitions, all mounted on each server:</div><div class=""><br class=""></div><div class="">MGS - 4GB</div><div class="">MDT - 78.12GB</div><div class="">OST - 78.14GB</div><div class=""><br class=""></div><div class="">(I’ve chosen a comparable size for MDT and OST because of the small file size)</div><div class="">- Total number of files is at around 16 million, sizes between <1K and 1.7MB. They are not equally spread on all mountpoints so let’s say I have a 2M maximum number of files on a Lustre volume.</div><div class=""><br class=""></div><div class="">My problem is that MDT partition is getting full. Inodes are fine, only 3% used, which is ok, but the space used is > 50% used, and constantly dropping. So I think that within a week, I’ll be out of storage on all MDT partitions. And I didn’t specify any special options when creating MDT partitions, so bytes per inode should be at 16K (default setting).</div><div class=""><br class=""></div><div class="">Anyone has any ideas?</div><div class=""><br class=""></div><div class="">Thanks,</div><div class="">Radu</div></div><br class="">_______________________________________________<br class="">
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