Limiting network traffic on linux

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  ## 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








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using docker(# export import container)

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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 ...
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CUDA error: no kernel image is available for execution on the device

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  ## pytorch reinstall (keras) [min@ai grecognition]$ conda uninstall pytorch Collecting package metadata (repodata.json): done Solving environment: done ==> WARNING: A newer version of conda exists. <== current version: 4.10.3 latest version: 4.13.0 Please update conda by running $ conda update -n base -c defaults conda ## Package Plan ## environment location: /home/min/anaconda3/envs/keras removed specs: - pytorch The following packages will be downloaded: package | build ---------------------------|----------------- debugpy-1.5.1 | py37h295c915_0 1.7 MB entrypoints-0.4 | py37h06a4308_0 16 KB ipython-7.31.1 | py37h06a4308_0 1013 KB jedi-0.18.1 | py37h06a4308_1 980 KB jupyter_client-7.2.2 | py37h06a4308_0 190 KB jupyter_core-4.10.0 | py37h06a4308_0 75 KB nest-...
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resize tomcat heap

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#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 ...
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