connection

问题 Is it possible to put multiple requests without breaking the connection using python httplib?. Like, can I upload a big file to the server in parts but in a single socket connection. I looked for answers. But nothing seemed so clear and definite. Any examples/related links will be helpfull. Thanks. 回答1: Yes, the connection stays open until you close it using the close() method. The following example, taken from the httplib documentation, shows how to perform multiple requests using a single

问题 I have been having issues with running a Glassfish v2.1.1 instance on my local machine from within the office, where we have a proxy server for outgoing connections. My initial workaround has been to work from home. I am calling a SOAP service on a HTTPS server outside of the company. As Glassfish is not going via the company's proxy server, I get the following error when trying to initialise my SOAP clients: javax.xml.ws.WebServiceException: Failed to access the WSDL at: https://www.hostname

问题 Hello i downloaded this npm module to connect to my ftp : node-ftps connection class var FTPS = require('ftps'); var ftps = new FTPS({ host: 'myhost', username: 'user', password: 'mypw', protocol: 'ftp' }); ftps.exec(function (err, res) { console.log(); }); how can i check if the connection was successful and how can i get all files from my path! tryed to add an file but get an error i didn't even know if im connected 回答1: I would advice you to try node-ftp which supports ftps too, Although

问题 I am receiving data through a com port continuously and doing some decoding. When decoding is done i have to store the results in a sql database. I am thinking since the decoding is done (in a while loop always running) dozens of times per second and data need to be stored to the database dozen of times every second if it is wise to open and close the connection to the sql server in each while loop or just leave it open and continue to write data to the database. First of all is this possible

问题 We have a suspect application leaving a connection open. Just wondering on the debugging tools for this, as to whether anyone has any good tools for isolating this, commercial or otherwise. I've Googled but only seem to bring up articles that describe the problem - not the steps for a solution. This is the best article I've seen so far. - Others welcome. Anyone have any products that isolate the problematic code? Profilers which perform this sort of thing, or any other advice to add? 回答1: You

问题 If say I need to run two separate SQL statements against two separate databases. Right now I do (pseudocode): Try{ declare variable connectionA to DatabaseA declare variable connectionB to DatabaseB connectionA.open() connectionB.open() declare variable SQLCmdA with ConnectionA and one SQL statement declare variable SQLCmdB with ConnectionB and another SQL statement SQLCmdA.executeNonQuery() SQLCmdB.executeNonQuery() } Catch () { print error message } Finally(){ connectionA.close()

问题 I am traying to reduce memory usage by Apache on the server. My actual Max Connections Per Child is 10k According to the following recommendation the Max Connections Per Child should be reduced to 1000 http://www.lophost.com/tutorials/how-to-reduce-high-memory-usage-by-apache-httpd-on-a-cpanel-server/ What is the recommended max value for Max Connections Per Child in Apache configuration? 回答1: The only time when this directive affects anything is when your Apache workers are leaking memory.

问题 I created a R shiny app that automatically runs every day using a batch file. Everything works fine when lauching the app, but the next day it crashes and I get the following message: Warning in file(open = "w+") : cannot open file 'C:\Users\bertin\AppData\Local\Temp\RtmpKiBPOU\Rf3f835d1a66' : No such file or directory Warning: Error in file: cannot open the connection [No stack trace available] Actually this issue is related to the tempdir() folder created by the R session executing the

问题 This question already has answers here : ConfigurationManager keeps getting Machine.config connection string (4 answers) Closed 6 years ago . I'm writing a windows service and I need the list of all connection strings defined in App.config. I Used System.Configuration.ConfigurationManager.ConnectionStrings to get all connections. it always return this extra connection: data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true that I

问题 With Rails 4.1.1, using mysql2 adapter: I am using an ActiveRecord connection to execute a multiple insert in a MySQL table: ActiveRecord::Base.connection.execute %Q{ INSERT INTO table (`user_id`, `item_id`) SELECT 1, id FROM items WHERE items.condition IS NOT NULL } This works fine, do the job, and returns nil . Is there a way to get the number of affected rows ? (avoiding the need to execute another query) I have found the documentation of the execute method somewhat sparse. 回答1: You can