<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div>Thanks for the prompt feedback.</div><div><br></div><div>This [*] is the output of "openstack hypervisor show <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a>"</div><div><br></div><div>Let me also add that if I restart openstack-nova-compute on the hypervisor, then "nova host-describe" shows the right information for a few seconds:</div><div><br></div><div><br></div><div>[root@cld-ctrl-01 ~]# nova host-describe <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a></div><div>+-----------------------------+----------------------------------+-----+-----------+---------+</div><div>| HOST | PROJECT | cpu | memory_mb | disk_gb |</div><div>+-----------------------------+----------------------------------+-----+-----------+---------+</div><div>| <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> | (total) | 8 | 32722 | 241 |</div><div>| <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> | (used_now) | 19 | 39424 | 95 |</div><div>| <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> | (used_max) | 19 | 38912 | 95 |</div><div>| <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> | b08eede75d5e4be4b0fe21e68fa9c688 | 1 | 2048 | 20 |</div><div>| <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> | 7890b3e262264529a19f9743cf2f14bc | 16 | 32768 | 50 |</div><div>| <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> | 4d8187cffa6a4085ad4a357b8a5afc03 | 2 | 4096 | 25 |</div><div>+-----------------------------+----------------------------------+-----+-----------+---------+</div><div><br></div><div><br></div><div>but after a while it goes back publishing 16256 MB as used_now</div><div><br></div><div>Thanks, Massimo</div><div><br></div><div>[*]</div><div><div># openstack hypervisor show <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a></div><div>+----------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+</div><div>| Field | Value |</div><div>+----------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+</div><div>| aggregates | [u'Unipd-AdminTesting-Unipd', u'Unipd-HPC-Physics', u'Unipd-model-glasses---DISC', u'Unipd-DECAMP', u'Unipd-Biodiversity-Macro-biomes', u'Unipd- |</div><div>| | CMB4PrimordialNonGaussianity', u'Unipd-Links-in-Channel', u'Unipd-TC4SAP', u'Unipd-Diabetes_Risk', u'Unipd-LabTrasporti', u'Unipd-Hydrological_DA', u'Unipd- |</div><div>| | Smart_Enterprise_in_Cloud', u'Unipd-DEM_Sim_ICEA', u'Unipd-Plasmonics', u'Unipd-QuBiMM', u'Unipd-MedComp', u'Unipd-BigDataComputingCourse', u'Unipd-DSB---Sci.-Biomed', u |</div><div>| | 'Unipd-Notion', u'Unipd-The_role_of_trade-offs_in_competitive_ecosystems', u'Unipd-MMS_Cloud', u'Unipd-SID2016', u'Unipd-QuantumFuture', u'Unipd-Link_Translocation-DFA', |</div><div>| | u'Unipd-Hopping_Transport_in_Lithium_Niobate', u'Unipd-Negapedia', u'Unipd-SIGNET-ns3', u'Unipd-SIGNET-MATLAB', u'Unipd-QST', u'Unipd-AbinitioTransport', u'Unipd- |</div><div>| | CalcStat', u'Unipd-PhysicsOfData-students', u'Unipd-DiSePaM', u'Unipd-Few-mode-optical-fibers', u'Unipd-cleva'] |</div><div>| cpu_info | {"vendor": "Intel", "model": "SandyBridge-IBRS", "arch": "x86_64", "features": ["pge", "avx", "xsaveopt", "clflush", "sep", "syscall", "tsc-deadline", "dtes64", "stibp", |</div><div>| | "msr", "xsave", "vmx", "xtpr", "cmov", "ssse3", "est", "pat", "monitor", "smx", "pbe", "lm", "tsc", "nx", "fxsr", "tm", "sse4.1", "pae", "sse4.2", "pclmuldq", "cx16", |</div><div>| | "pcid", "vme", "mmx", "osxsave", "cx8", "mce", "de", "rdtscp", "ht", "dca", "lahf_lm", "pdcm", "mca", "pdpe1gb", "apic", "sse", "pse", "ds", "invtsc", "pni", "tm2", |</div><div>| | "aes", "sse2", "ss", "ds_cpl", "arat", "acpi", "spec-ctrl", "fpu", "ssbd", "pse36", "mtrr", "popcnt", "x2apic"], "topology": {"cores": 4, "cells": 2, "threads": 1, |</div><div>| | "sockets": 1}} |</div><div>| current_workload | 0 |</div><div>| disk_available_least | 124 |</div><div>| free_disk_gb | 146 |</div><div>| free_ram_mb | -6702 |</div><div>| host_ip | 192.168.60.150 |</div><div>| host_time | 11:56:28 |</div><div>| hypervisor_hostname | <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> |</div><div>| hypervisor_type | QEMU |</div><div>| hypervisor_version | 2010000 |</div><div>| id | 132 |</div><div>| load_average | 0.11, 0.19, 0.21 |</div><div>| local_gb | 241 |</div><div>| local_gb_used | 23 |</div><div>| memory_mb | 32722 |</div><div>| memory_mb_used | 16255 |</div><div>| running_vms | 4 |</div><div>| service_host | <a href="http://cld-blu-01.cloud.pd.infn.it">cld-blu-01.cloud.pd.infn.it</a> |</div><div>| service_id | 171 |</div><div>| state | up |</div><div>| status | enabled |</div><div>| uptime | 85 days, 34 min |</div><div>| users | 1 |</div><div>| vcpus | 8 |</div><div>| vcpus_used | 19 |</div><div>+----------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+</div><div>[root@cld-ctrl-01 ~]# </div></div><div><br></div><div><br></div><div><br></div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 27, 2019 at 11:47 AM Sean Mooney <<a href="mailto:smooney@redhat.com">smooney@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Wed, 2019-02-27 at 09:33 +0100, Massimo Sgaravatto wrote:<br>
> In the dashboard of my OpenStack Ocata cloud I see that the reported memory usage is wrong for the hypervisors.<br>
> As far as I understand that information should correspond to the "used_now" field of the "nova host-describe" <br>
nova host-describe has been removed in later version of nova.<br>
> command. And indeed considering an hypervisor: <br>
> <br>
> <br>
> # nova host-describe <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a><br>
> +-----------------------------+----------------------------------+-----+-----------+---------+<br>
> | HOST | PROJECT | cpu | memory_mb | disk_gb |<br>
> +-----------------------------+----------------------------------+-----+-----------+---------+<br>
> | <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a> | (total) | 8 | 32722 | 241 |<br>
> | <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a> | (used_now) | 19 | 16259 | 23 |<br>
> | <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a> | (used_max) | 19 | 38912 | 95 |<br>
> | <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a> | b08eede75d5e4be4b0fe21e68fa9c688 | 1 | 2048 | 20 |<br>
> | <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a> | 7890b3e262264529a19f9743cf2f14bc | 16 | 32768 | 50 |<br>
> | <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a> | 4d8187cffa6a4085ad4a357b8a5afc03 | 2 | 4096 | 25 |<br>
> +-----------------------------+----------------------------------+-----+-----------+---------+<br>
> <br>
> <br>
> So for the memory it reports 16259 for used_now, while as far as far I understand it should be 38912 + the memory used<br>
> by the hypervisor<br>
> <br>
> Am I missing something ?<br>
the hypervisors api's memory_mb_used is (reserved memory + total of all memory associtate with instance on the host).<br>
i would have expected used_now to reflect that.<br>
what does "openstack hypervisor show <a href="http://cld-blu-01.cloud.pd.infn.it" rel="noreferrer" target="_blank">cld-blu-01.cloud.pd.infn.it</a>" print.<br>
<br>
> <br>
> Thanks, Massimo<br>
> <br>
<br>
</blockquote></div></div></div></div></div></div></div></div></div>