<div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr">On Tue, Feb 21, 2017 at 12:12 AM Simone Tiraboschi <<a href="mailto:stirabos@redhat.com">stirabos@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg"><div class="gmail_extra gmail_msg"><div class="gmail_quote gmail_msg">On Mon, Feb 20, 2017 at 9:39 PM, Roy Golan <span dir="ltr" class="gmail_msg"><<a href="mailto:rgolan@redhat.com" class="gmail_msg" target="_blank">rgolan@redhat.com</a>></span> wrote:<br class="gmail_msg"><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class="gmail_msg"><span class="gmail_msg"><div class="gmail_msg"><br class="gmail_msg"><div class="gmail_extra gmail_msg"><br class="gmail_msg"><div class="gmail_quote gmail_msg">On Feb 20, 2017 9:35 PM, "Doug Ingham" <<a href="mailto:dougti@gmail.com" class="gmail_msg" target="_blank">dougti@gmail.com</a>> wrote:<br type="attribution" class="gmail_msg"><blockquote class="m_-1583573379174239055m_-9011485876225134504quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg">16GB is just the recommended amount of memory. The more items your Engine has to manage, the more memory it will consume, so whilst it might not be using that amount of memory at the moment, it will do as you expand your cluster.<br class="gmail_msg"></div></blockquote></div></div></div><div dir="auto" class="gmail_msg"> </div></span><div dir="auto" class="gmail_msg">It will never really need this amount of memory. There is no reason to configure the heap for 16gb.</div><span class="gmail_msg"><div dir="auto" class="gmail_msg"><br class="gmail_msg"></div><div dir="auto" class="gmail_msg"><br class="gmail_msg"></div><div dir="auto" class="gmail_msg"><div class="gmail_extra gmail_msg"><div class="gmail_quote gmail_msg"><blockquote class="m_-1583573379174239055m_-9011485876225134504quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg"></div><div class="gmail_extra gmail_msg"><div class="m_-1583573379174239055m_-9011485876225134504elided-text gmail_msg"><br class="gmail_msg"><div class="gmail_quote gmail_msg">On 20 February 2017 at 16:22, FERNANDO FREDIANI <span dir="ltr" class="gmail_msg"><<a href="mailto:fernando.frediani@upx.com" class="gmail_msg" target="_blank">fernando.frediani@upx.com</a>></span> wrote:<br class="gmail_msg"><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello folks<br class="gmail_msg">
<br class="gmail_msg">
I have a Engine dedicated machine running with 4GB of memory. It has been working fine without any apparent issues.<br class="gmail_msg">
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If I check the system memory usage it rarely goes over 1.5GB.<br class="gmail_msg">
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But when I upgrade oVirt Engine it complains with the following message: "[WARNING] Less than 16384MB of memory is available".<br class="gmail_msg">
</blockquote></div></div></div></blockquote></div></div></div><div dir="auto" class="gmail_msg"><br class="gmail_msg"></div></span><div dir="auto" class="gmail_msg">Please open a bug with all the details, we should address that. </div></div></blockquote><div class="gmail_msg"><br class="gmail_msg"></div></div></div></div><div dir="ltr" class="gmail_msg"><div class="gmail_extra gmail_msg"><div class="gmail_quote gmail_msg"><div class="gmail_msg">Currently we are tuning the java heap size to 1/4 of the system memory.</div><div class="gmail_msg">On hosted-engine-setup side we propose to assign to the engine VM 16GB (so java heap = 4GB) as recommended and 4GB as a minimum suggested value.</div></div></div></div><div dir="ltr" class="gmail_msg"><div class="gmail_extra gmail_msg"><div class="gmail_quote gmail_msg"><div class="gmail_msg"><br class="gmail_msg"></div></div></div></div></blockquote><div><br></div><div>So for a machine with 64Gb we would put 16Gb doesn't make sense.(for non hosted engine but in the future this may change) . we should elaborate the calculation to top 4Gb.<br><br></div><div>Also what is the purpose of the warning that you have less than 16Gb of available ram?<br><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg"><div class="gmail_extra gmail_msg"><div class="gmail_quote gmail_msg"><div class="gmail_msg"></div><div class="gmail_msg"> </div><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class="gmail_msg"><span class="gmail_msg"><div dir="auto" class="gmail_msg"><div class="gmail_extra gmail_msg"><div class="gmail_quote gmail_msg"><blockquote class="m_-1583573379174239055m_-9011485876225134504quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="gmail_extra gmail_msg"><div class="m_-1583573379174239055m_-9011485876225134504elided-text gmail_msg"><div class="gmail_quote gmail_msg"><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br class="gmail_msg">
Why is all that required if the real usage doesn't show that need ? Or am I missing anything ?<br class="gmail_msg">
<br class="gmail_msg">
Fernando Frediani<br class="gmail_msg">
<br class="gmail_msg">
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</blockquote></div><br class="gmail_msg"><br class="gmail_msg" clear="all"><br class="gmail_msg"></div><font class="gmail_msg" color="#888888">-- <br class="gmail_msg"><div class="m_-1583573379174239055m_-9011485876225134504m_-4798544811954714389gmail_signature gmail_msg" data-smartmail="gmail_signature">Doug</div>
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