Limiting network traffic on linux

-

  ## set limit

[root@localhost ~]# tc qdisc add dev ens32 root tbf rate 200kbit burst 16kbit latency 50ms




 ## reset limit

[root@localhost ~]# ifdown ens32

[root@localhost ~]# ifup ens32








댓글

댓글 쓰기

이 블로그의 인기 게시물

resize tomcat heap

-
#before heap size [root@localhost min]# jmap -heap 109487 Attaching to process ID 109487, please wait... Debugger attached successfully. Server compiler detected. JVM version is 25.252-b09 using thread-local object allocation. Parallel GC with 2 thread(s) Heap Configuration: MinHeapFreeRatio = 0 MaxHeapFreeRatio = 100 MaxHeapSize = 987758592 (942.0MB) NewSize = 20971520 (20.0MB) MaxNewSize = 329252864 (314.0MB) OldSize = 41943040 (40.0MB) NewRatio = 2 SurvivorRatio = 8 MetaspaceSize = 21807104 (20.796875MB) CompressedClassSpaceSize = 1073741824 (1024.0MB) MaxMetaspaceSize = 17592186044415 MB G1HeapRegionSize = 0 (0.0MB) Heap Usage: PS Young Generation Eden Space: capacity = 278921216 (266.0MB) used = 22089864 (21.06653594970703MB) free = 256831352 (244.93346405029297MB) 7.919750357032719% used ...
자세한 내용 보기

using docker(# export import container)

-
docker에 설치된 데이터들을 backup -> restore 해보기 1. 환경준비     centos 7.6     docker 2.backup container [root@kylin hbase-2.2.0]# docker ps -a CONTAINER ID        IMAGE                             COMMAND                  CREATED             STATUS                          PORTS               NAMES 73b1430f15b7        centos                            "/bin/bash"              2 minutes ago       Exited (0) About a minute ago                       hbasemaster 4c865448f160 ...
자세한 내용 보기

Docker Error starting daemon: SELinux is not supported

-
#error message [root@localhost ~]# systemctl start docker Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details. [root@localhost ~]# systemctl status docker.service ● docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled) Active: failed (Result: exit-code) since 화 2020-04-28 08:53:09 KST; 12s ago Docs: http://docs.docker.com Process: 18314 ExecStart=/usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --init-path=/usr/libexec/docker/docker-init-current --seccomp-profile=/etc/docker/seccomp.json $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY ...
자세한 내용 보기