ubuntu-14.04

问题 Whenever I try to install any package in R on Ubuntu 14.04, I'm getting the following error: Error in readRDS(file) : error reading from connection I already tried the methods given here but could not solve the problem. 回答1: 1- Install the latest version of R form the CRAN and try to install a package. 2- If it is possible check it with another user account. 3- Try to install the R package locally. 4- If there is an RDS file created by the old version of R you may have another sort of problem

问题 I'm getting this error when starting cassandra after upgrade. Any idea? # cassandra -f xss = -ea -javaagent:/usr/share/cassandra/lib/jamm-0.2.5.jar -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms1920M -Xmx1920M -Xmn200M -XX:+HeapDumpOnOutOfMemoryError -Xss180k The stack size specified is too small, Specify at least 228k Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. 回答1: I have fixed it by editing file /etc/cassandra

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . I have a flask app running on AWS Ubuntu server on port 5000 (flask runs default on port 5000). But when I try to access the server on that port, it never connects. I added a security group on AWS console as Custom TCP on port 5000 for any ip address 0.0.0.0/0 , but still I cannot access it. Do I have to restart

问题 I tried installing zerorpc package on node using 'npm install zerorpc' and I am getting following error. The error is because node-gyp fails to rebuild. npm http GET https://registry.npmjs.org/zerorpc npm http 304 https://registry.npmjs.org/zerorpc npm http GET https://registry.npmjs.org/underscore/1.3.3 npm http GET https://registry.npmjs.org/node-uuid/1.3.3 npm http GET https://registry.npmjs.org/msgpack/1.0.2 npm http GET https://registry.npmjs.org/zmq npm http 304 https://registry.npmjs

问题 I tried installing zerorpc package on node using 'npm install zerorpc' and I am getting following error. The error is because node-gyp fails to rebuild. npm http GET https://registry.npmjs.org/zerorpc npm http 304 https://registry.npmjs.org/zerorpc npm http GET https://registry.npmjs.org/underscore/1.3.3 npm http GET https://registry.npmjs.org/node-uuid/1.3.3 npm http GET https://registry.npmjs.org/msgpack/1.0.2 npm http GET https://registry.npmjs.org/zmq npm http 304 https://registry.npmjs

问题 I know this question asked already but those answers are not helping in any way. I am spending more time to configure mysql with hive, Every time I encounter errors and I don't understand where it goes wrong ..... as you can see in this link, hive-site.xml configuration can be seen here in the link Here is file-structure So is the reason creating this question.... Hoping this helps me to resolve. I followed these links https://dzone.com/articles/how-configure-mysql-metastore hive-site.xml

问题 I have successfully configure my symfony webapp to sending email using SMTP. But all my sending email are being put into the spool directory. This should only occurs whem there is an error in the sending. Is that correct? But if I execute the command swiftmailer:spool:send --env=prod , all my emails are sending correctly. Why my server are not sending the email immediately? Is that because I fixed an error? Is there any way to fix this? swiftmailer: spool: type: file path: %kernel.root_dir%

问题 I followed DigitalOcean's tutorials on how to set up your server with SSH, creating a new user, firewalls etc. The first tutorial in the series is linked under: https://www.digitalocean.com/community/tutorials/how-to-connect-to-your-droplet-with-ssh I've also installed Webmin on my server, but I still can't get a connection to the server by using the web-browser. It just loads for a long time and then says it can't establish a connection. The URL's I've been using are: "Just-my-IP-adress" and

问题 I followed DigitalOcean's tutorials on how to set up your server with SSH, creating a new user, firewalls etc. The first tutorial in the series is linked under: https://www.digitalocean.com/community/tutorials/how-to-connect-to-your-droplet-with-ssh I've also installed Webmin on my server, but I still can't get a connection to the server by using the web-browser. It just loads for a long time and then says it can't establish a connection. The URL's I've been using are: "Just-my-IP-adress" and

问题 Given the option between using GPG and OpenSSL for local encryption before pushing archives to an off-site backup location, what are the benefits and drawbacks of each solution? Background: I currently manage a server infrastructure based on Ubuntu 14.04.1 with all current patches applied as they become available. All of these systems are headless, automatically built using vetted preseeds and automation tools, and run in virtual machines via KVM on uniform Intel-based hardware. We have a