ubuntu-14.04

问题 I`m just installed a Glassfish 4.1 on Ubuntu 14.04 and trying to ping DerbyPool but it fails with java.net.ConnectException. Ping Connection Pool failed for DerbyPool. Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused. Please check the server.log for more details. server.log: [2015-01-02T20:51:12.361+0200] [glassfish 4.1] [WARNING] [test.connection.pool.failed] [javax.enterprise.resource

问题 I am on ubuntu 14.04 and I also upgrade docker to recent version. Whenever I do a sudo /etc/init.d/docker start I get a successful pid as follows, docker start/running, process 16267 When I view the PID details, I see nothing - ps -p 16267 PID TTY TIME CMD And when I try to do a sudo docker version I see the below - Client API version: 1.16 Go version (client): go1.2.1 OS/Arch (client): linux/amd64 2015/01/10 10:30:49 Cannot connect to the Docker daemon. Is 'docker -d' running on this host?

问题 I have recently discovered that the performance of a cblas_sgemm call for matrix multiplication dramatically improves if the matrices have a "large" number of zeros in them. It improves to the point that it beats its cublas cousin by around 100 times. This could be most probably attributed to some automatic detection of sparsity and suitable format conversion by cblas_sgemm function. Unfortunately, no such behavior is exhibited by its cuda counterpart i.e. cublasSgemm. So, the question is,

问题 I am getting error while installing topicmodels package in R . on running install.packages("topicmodels",dependencies=TRUE) following are the last few lines I am getting. Please help. My R version is 3.1.3 . g++ -I/usr/share/R/include -DNDEBUG -fpic -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c utilities.cpp -o utilities.o gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -fpic -g -O2 -fstack-protector --param=ssp

问题 I have ubuntu 14.04 EC2 instance. I have installed php 7 on it. when I execute any php command like php --version or any other. I get following error PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_mysqli.dll' - /usr/lib/php/20151012/php_mysqli.dll: cannot open shared object file: No such file or directory in Unknown on line 0 I have tried following enable php_mysqli.dll in php.ini enable mysqli.so enable php_mysqli.so sudo apt-get install php-mysql but

问题 I am trying to install letsencrypt on ubuntu 14 on DigitalOcean Server but getting this issue. I tried sudo to install but same error, also try to install libs but nothing happen. apt-key update result : gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed gpg: key FBB75451: "Ubuntu CD Image Automatic Signing Key <cdimage@ubuntu.com>" not changed gpg: key C0B21F32: "Ubuntu Archive Automatic Signing Key (2012) <ftpmaster@ubuntu.com>" not changed gpg: key

问题 I'm using mysql as the database for a rails app and trying to bundle install the mysql2 gem. During the step Installing mysql2 0.3.19 with native extensions rather than failing and giving me an error message, it simply hangs and never gives any output at all. For background I'm installing on a fresh digital ocean droplet that comes with rails installed on Ubuntu 14.04, using ruby 2.0.0 and without specifying a version for the mysql2 gem. 回答1: It looks like I had the wrong version of mysql

问题 I have successfully installed Laravel on Apache2 with php as a module. The instructions are simple. However, when I try with fcgi it does not work. So it has to do with the server configuration. After I visited http://<mylaraveldomain> (domain not public), I looked at /var/log/apache2/error.log and got this error message [Thu Mar 26 22:52:34.012794 2015] [fcgid:warn] [pid 30834] (104)Connection reset by peer: [client 65.92.253.153:7785] mod_fcgid: error reading data from FastCGI server [Thu

问题 please help me in this. I tried installing Rcpp using sudo apt-get install r-cran-rcpp and from R-Studio and got the same error: > install.packages("Rcpp", dependencies=TRUE) Installing package into ‘/home/sukumar/R/x86_64-pc-linux-gnu-library/3.3’ (as ‘lib’ is unspecified) also installing the dependency ‘highlight’ trying URL 'http://cran.rstudio.com/src/contrib/highlight_0.4.7.tar.gz' Content type 'application/x-gzip' length 356443 bytes (348 KB) ============================================

问题 Linux is totally new to me. i am trying to install .Net Core in ubuntu 14.05. I try following command to install ubuntu sudo sh -c 'echo "deb [arch=amd64] https://apt-mo.trafficmanager.net /repos/dotnet-release/ trusty main" > /etc/apt/sources.list.d /dotnetdev.list' sudo apt-key adv --keyserver apt-mo.trafficmanager.net --recv-keys 417A0893 sudo apt-get update These command run successfully when i run below command i got error sudo apt-get install dotnet-dev-1.0.0-preview2-003131 My error is