High memory usage by old stuck processes (nova, glance, heat, neutron, Keystone)

asked 2019-09-06 04:36:31 -0500

Hi Experts,

I am facing "Lack of available memory" alarm on one of the computes. Checking ps -aux output, I can see many old heat, nova, glance, keystone processes consuming a lot of memory,

swift 1450 0.8 0.0 270272 27212 ? Ss Jul15 658:34 /usr/bin/python swift 1452 0.8 0.0 261008 26364 ? Ss Jul15 662:55 /usr/bin/python swift 1457 0.8 0.0 330704 49924 ? Ss Jul15 660:53 /usr/bin/python swift 1460 0.8 0.0 260168 26052 ? Ss Jul15 657:11 /usr/bin/python glance 1469 0.0 0.1 374288 89292 ? Ss Jul15 0:01 /usr/bin/python glance 3310 0.0 0.1 374288 83988 ? S Jul15 0:06 /usr/bin/python glance 3311 0.0 0.1 377104 87420 ? S Jul15 0:07 /usr/bin/python glance 3313 0.0 0.1 374288 83984 ? S Jul15 0:06 /usr/bin/python glance 3317 0.0 0.1 377872 88156 ? S Jul15 0:08 /usr/bin/python nobody 3324 0.0 0.0 49632 1096 ? S Jul15 0:00 /usr/sbin/dnsma root 3325 0.0 0.0 49604 364 ? S Jul15 0:00 /usr/sbin/dnsma neutron 3337 0.9 0.1 329412 67708 ? Ss Jul15 748:47 /usr/bin/python heat 3353 0.0 0.1 391912 65944 ? S Jul15 0:07 /usr/bin/python heat 3360 0.0 0.1 391912 65944 ? S Jul15 0:06 /usr/bin/python heat 3366 0.0 0.1 391912 65944 ? S Jul15 0:06 /usr/bin/python heat 3370 0.0 0.1 395428 69988 ? S Jul15 29:45 /usr/bin/python heat 3373 0.0 0.1 391912 65944 ? S Jul15 0:06 /usr/bin/python ironic 3437 0.4 0.1 393920 84928 ? S Jul15 308:11 /usr/bin/python ironic 3441 0.0 0.1 391864 82684 ? S Jul15 9:00 /usr/bin/python ironic 3442 0.2 0.2 478736 169792 ? S Jul15 208:44 /usr/bin/python ironic 3443 0.0 0.1 392160 83052 ? S Jul15 9:08 /usr/bin/python root 3633 0.0 0.0 0 0 ? S 00:57 0:00 [kworker/7:1] root 3887 0.0 0.0 0 0 ? S 05:59 0:00 [kworker/u32:1] glance 3915 0.0 0.1 772080 96092 ? S Jul15 0:06 /usr/bin/python glance 3924 0.0 0.1 772848 97520 ? S Jul15 0:06 /usr/bin/python glance 3926 0.0 0.1 772848 97520 ? S Jul15 0:06 /usr/bin/python nova 4066 0.3 0.1 371184 99792 ? S Jul15 264:18 /usr/bin/python nova 4067 0.3 0.1 378004 106748 ? S Jul15 263:38 /usr/bin/python nova 4068 0.3 0.1 370832 99676 ? S Jul15 265:10 /usr/bin/python root 4094 0.0 0.0 0 0 ? S< Jul15 0:19 [kworker/5:1H] root 4105 0.0 0.0 0 0 ? S< Jul15 0:19 [kworker/8 ... (more)

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