Bug 1772802
| Summary: | Unnecessarily high API server usage of the Node Tuning Operator's operand (openshift-tuned) | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Jiří Mencák <jmencak> |
| Component: | Node Tuning Operator | Assignee: | Jiří Mencák <jmencak> |
| Status: | CLOSED ERRATA | QA Contact: | Simon <skordas> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 4.1.z | CC: | mifiedle, nelluri, sejug, skordas, sreber |
| Target Milestone: | --- | ||
| Target Release: | 4.1.z | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1769832 | Environment: | |
| Last Closed: | 2019-12-17 07:17:12 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1761920, 1769832 | ||
| Bug Blocks: | |||
* 18 worker nodes :) Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:4084 |
Verification positive! Tested with 18 clusters, 2000 pods. before fix cluster version: 4.1.18 openshift-tuned v4.1.18-201909201915-0-gb176431-dirty request count (prometheus: apiserver_request_count{client=~"openshift-tuned.+"}): * Before test apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.140.17:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 507 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.140.17:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="LIST"} 507 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.140.17:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 2 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.159.162:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 145 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.159.162:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="LIST"} 145 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.167.244:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 597 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.167.244:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="LIST"} 597 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.167.244:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 3 sum: 2503 * After Test apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.140.17:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 9327 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.140.17:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="LIST"} 9327 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.140.17:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 1701 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.159.162:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 8818 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.159.162:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="LIST"} 8818 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.159.162:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 1542 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.167.244:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 9159 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.167.244:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="LIST"} 9159 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.167.244:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 1628 sum: 59479 ---- after fix cluster version: 4.1.0-0.nightly-2019-12-04-071458 openshift-tuned v4.1.27-201912030019-0-g80617d4-dirty request count (prometheus: apiserver_request_count{client=~"openshift-tuned.+"}): * Before test apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.136.47:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 19 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.145.237:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 24 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.163.190:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 38 sum: 81 * After test apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.136.47:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 6433 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.136.47:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 1219 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.145.237:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 6614 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.145.237:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 1311 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.163.190:6443",job="apiserver",namespace="default",resource="nodes",scope="cluster",service="kubernetes",verb="GET"} 6384 apiserver_request_count{client="openshift-tuned/v0.0.0 (linux/amd64) kubernetes/$Format",code="200",contentType="application/json",endpoint="https",instance="10.0.163.190:6443",job="apiserver",namespace="default",resource="pods",scope="cluster",service="kubernetes",verb="WATCH"} 1199 sum: 23160