Ran dnsbench in varying number of test containers to test DNS QPS and reliability. Worker nodes were n1-standard-2 GCE instances.
~ 1300 QPS
Girish Kalele girishkalele
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| <?xml version="1.0" encoding="UTF-8"?> | |
| <?xml-stylesheet type="text/xsl" href="/bind9.xsl"?> | |
| <isc version="1.0"> | |
| <bind> | |
| <statistics version="2.2"> | |
| <views> | |
| <view> | |
| <name>_default</name> | |
| <zones> | |
| <zone> |
girishkalele
/ gist:4f36ccf342e87eeba064e63b14ebe0aa
Created
July 5, 2016 23:30
Pprof full traces kube-dns
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| (pprof) top1000 | |
| 5.54s of 6.37s total (86.97%) | |
| Dropped 138 nodes (cum <= 0.03s) | |
| Showing top 100 nodes out of 195 (cum >= 3.41s) | |
| flat flat% sum% cum cum% | |
| 1.46s 22.92% 22.92% 1.57s 24.65% syscall.Syscall | |
| 0.30s 4.71% 27.63% 0.30s 4.71% runtime.futex | |
| 0.30s 4.71% 32.34% 0.30s 4.71% runtime.usleep | |
| 0.28s 4.40% 36.73% 0.28s 4.40% runtime.readvarint |
girishkalele
/ Kubernetes_1.3_DNS_Perf.md
Created
June 20, 2016 21:29
Kubernetes 1.3 DNS Reliability and Performance testing
girishkalele
/ laundromat.sh
Last active
June 17, 2016 00:55
Launder using routing into a loopback tunnel
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| #!/bin/bash | |
| # SIGSTOP kube-proxy | |
| kill -STOP `ps auxwww | grep kube-proxy | grep -v /bin/sh | grep -v grep | awk '{print $2}'` | |
| export NODEID="3" | |
| export CBRA="10.244.$NODEID.1" | |
| export ETHA="10.128.0.$NODEID" | |
| # GRE point to point tunnel to launder packets |
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| FROM ubuntu | |
| MAINTAINER Abhishek Shah "[email protected]" | |
| ADD README.md README.md | |
| #ADD Dockerfile Dockerfile | |
| RUN apt-get -q update | |
| #Install dependencies needed for building dnsperf | |
| RUN apt-get install -y build-essential |
girishkalele
/ gist:e3645d4bbe8eb95f0ee0db3d24649824
Last active
May 1, 2019 01:19
proxy/userspace unit test failure
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| https://github.com/kubernetes/kubernetes/issues/26364 | |
| E0607 14:09:38.968177 116580 proxysocket.go:218] ReadFrom failed, exiting ProxyLoop: read udp [::]:43857: use of closed network connection | |
| E0607 14:09:39.218909 116580 proxysocket.go:292] WriteTo failed: write udp [::]:35756->127.0.0.1:38629: use of closed network connection | |
| E0607 14:09:39.219070 116580 proxysocket.go:238] SetDeadline failed: set udp 127.0.0.1:49782: use of closed network connection | |
| E0607 14:09:39.486255 116580 proxysocket.go:218] ReadFrom failed, exiting ProxyLoop: read udp [::]:35503: use of closed network connection | |
| panic: test timed out after 2m0s | |
| goroutine 114 [running]: | |
| panic(0xc6b280, 0xc820216dd0) |