Ubuntu

Problem to load .csv files into Apache Cassandra with Python

由 旧时模样 提交于 2021-02-11 13:17:33
问题 I'm trying to load a .csv file with Python into Apache Cassandra database. The command "COPY" integrated with session.execute seems don't work. It gives an unexpected indent in correspondance of =',' but...I red something about and I found that the command COPY in this way is not supported. In this script time_test and p are two float variables from cassandra.cluster import Cluster cluster = Cluster() session = cluster.connect('myKEYSPACE') rows = session.execute('COPY table_test (time_test,

linux内核调试+qemu+eclipse【转】

由 橙三吉。 提交于 2021-02-11 07:04:50
本文转载自： https://blog.csdn.net/WANG__RONGWEI/article/details/54922727 一、调试环境： 在ubuntu16.04下，在虚拟机里边运行的ubuntu，装32位的运行较快，选择较新的ubuntu版本是因为安装qemu、eclipse比较简单，在安装软件上节约时间。 二、安装的软件 1----安装qemu相关软件：sudo apt-get install kvm qemu libvirt-bin virtinst virt-manager virt-viewer 创建一个kvm目录，以后会用到：sudo mkdir /opt/kvm 2----安装eclipse-cdt软件，当然不是安装jdk，eclipse cdt是一个非常强大的c/c++ ide：sudo apt install eclipse-cdt。 三、下载linux内核，建eclipse工程 在ubuntu16.04版本下，最好选择跟他本身差不多的内核版本--linux-4.4。 具体可参考： http://blog.csdn.net/ustc_dylan/article/details/5991490 ，描述比较详细，只不过如果我们选择的是较新的eclipse版本，有一点差别。 1---编译内核：内核可选择放在home目录下，好处就是以后运行eclipse

Cannot connect remotely to shiny-server and get R app working properly

由 自闭症网瘾萝莉.ら 提交于 2021-02-11 00:37:53
问题 I HAVE FIXED THIS ISSUE. Please read answer below I have installed shiny-server on Ubuntu 14.04.4 LTS with VirtualBox. After forwarding port 3838 in my router and setting a bridged network, then assigning a static IP to my virtual Ubuntu machine, I am being able to connect remotely, from a computer outside from my network and visualize the "hello" example app page, but only the HTML code is rendered. Both R and markdown iframes are not working (connection is reset and they are grayed). On the

Cannot connect remotely to shiny-server and get R app working properly

由 回眸只為那壹抹淺笑 提交于 2021-02-11 00:33:56
问题 I HAVE FIXED THIS ISSUE. Please read answer below I have installed shiny-server on Ubuntu 14.04.4 LTS with VirtualBox. After forwarding port 3838 in my router and setting a bridged network, then assigning a static IP to my virtual Ubuntu machine, I am being able to connect remotely, from a computer outside from my network and visualize the "hello" example app page, but only the HTML code is rendered. Both R and markdown iframes are not working (connection is reset and they are grayed). On the

Matplotlibrc needs to be updated?

由 微笑、不失礼 提交于 2021-02-10 22:24:31
问题 So I wiped Python 3.6 some weeks ago and seem to have incorrectly reinstalled matplotlib etc because I've been getting a bunch of errors for different things. I'm trying to run a script that displays a number of images side by side using subplot. Tried it from the command line, worked fine. But when I write it all up in a script and try to run it (I have about 24 images) I get the following error: You probably need to get an updated matplotlibrc file from http://github.com/matplotlib

Matplotlibrc needs to be updated?

由 不打扰是莪最后的温柔 提交于 2021-02-10 22:24:05
问题 So I wiped Python 3.6 some weeks ago and seem to have incorrectly reinstalled matplotlib etc because I've been getting a bunch of errors for different things. I'm trying to run a script that displays a number of images side by side using subplot. Tried it from the command line, worked fine. But when I write it all up in a script and try to run it (I have about 24 images) I get the following error: You probably need to get an updated matplotlibrc file from http://github.com/matplotlib

What's the difference between libusb.h and usb.h in ubuntu? Which one is better?

由 守給你的承諾、 提交于 2021-02-10 20:46:50
问题 I'm a newbie in libusb c programming. Should I know the difference between libusb.h and usb.h? I have installed both of them in Ubuntu(xenial) with package libusb-1.0-0-dev and libusb-dev. Which one is better? Are they from the same origin libusb.info? Thanks, 回答1: The libusb library has onetime switched from version 0.1 to version 1.0, breaking compatibility. usb.h - is a header for libusb 0.1, the older one. libusb.h - is a header for libusb 1.0, the newer one. Correspondingly, libusb-dev

What's the difference between libusb.h and usb.h in ubuntu? Which one is better?

由 别等时光非礼了梦想. 提交于 2021-02-10 20:43:11
问题 I'm a newbie in libusb c programming. Should I know the difference between libusb.h and usb.h? I have installed both of them in Ubuntu(xenial) with package libusb-1.0-0-dev and libusb-dev. Which one is better? Are they from the same origin libusb.info? Thanks, 回答1: The libusb library has onetime switched from version 0.1 to version 1.0, breaking compatibility. usb.h - is a header for libusb 0.1, the older one. libusb.h - is a header for libusb 1.0, the newer one. Correspondingly, libusb-dev

Charles Proxy and Interceptor are not tracking any http request in Ubuntu

由 做~自己de王妃 提交于 2021-02-10 20:31:49
问题 I can't seem to get any activity showing on anything relating to HTTP/proxy requests in Ubuntu. I downloaded Charles Proxy first, opened it, but shows nothing. Then I tried Interceptor (Chrome extension), also nothing. Having a look at my Ubuntu settings, it's entirely possible I'm supposed to configure something in here, in support of these options, but it's not documented at all. How I can go about listening to network requests, intercepting them and serving other/mock json when they happen

Using Persistent Host Volume for ElasticSearch with Docker-Compose

由 99封情书 提交于 2021-02-10 20:12:04
问题 Running Elasticsearch using the below docker-compose.yml is throwing an error Java.nio.file.AccessDeniedException: /usr/share/elasticsearch/data/nodes It appears that this is due to trying to mount /usr/share/elasticsearch/data in the Docker container to ./data/elasticsearch/data on the host. Tried setting user: "1000:1000" after identifying the following info, but still getting the same error. the owner/group of /usr/share/elasticsearch/data/nodes to be elasticsearch:elasticsearch the owner
订阅 Ubuntu