connection

How to solve the 10054 error

由 社会主义新天地 提交于 2019-12-03 13:10:26
问题 I'm using an app provided by some website to collect some data from the website periodly, say, 30s a time. The returned response is then recorded in database. I use the requests modular by import requests and write codes to catch Exception. The codes for the main function are as following: def get_response(self): try: response = requests.get(self.request_url) if response.status_code == 200: return response.json() except Exception as e: msg = "Exception is:\n %s \n" % e print msg The above

DBCP Connection Pool loginTimeout

由 蹲街弑〆低调 提交于 2019-12-03 12:41:30
According to the DBCP Document , BasicDataSource does not support setLoginTimeout(). My question is then how do I set a LoginTimeout for the creation of Connection objects? I know I can set maxWait on the pool, but my understanding is that that'll only be used for when the pool is exhausted and you're waiting for an existing connection to free up. It will not save me from the situation where a new connection needs to be created, but the connection/login into the DB hangs. Any help is appreciated. Thanks. Well there is always an option to add correct parameter to the URL. Depending on which DB

What is the best way to handle this: large download via PHP + slow connection from client = script timeout before file is completely downloaded

由 泄露秘密 提交于 2019-12-03 12:30:20
My client wanted a way to offer downloads to users, but only after they fill out a registration form (basically name and email). An email is sent to the user with the links for the downloadable content. The links contain a registration hash unique to the package, file, and user, and they actually go to a PHP page that logs each download and pushes the file out by writing it to stdout (along with the appropriate headers. This solution has inherent flaws, but this is how they wanted to do it. It needs to be said that I pushed them hard to 1.) limit the sizes of the downloadable files and 2.)

Persistent connection with client

由 落花浮王杯 提交于 2019-12-03 12:02:33
问题 Is there a general way to implement part of an application with JavaScript and supplying a persistent connection to a server? I need the server to be able to push data to the client, regardless of the client being behind a firewall. Thanks in advance 回答1: See Comet - it's like ajax, but it holds a connection open so the server can push information to the client. Note that compliant browsers will only hold 2 connections (note: most modern browsers no longer comply) to a particular domain (by

Using POSIX message queues instead of TCP sockets - how to establish “connection”?

由 我是研究僧i 提交于 2019-12-03 11:40:44
问题 I have client and server programs which now communicate via TCP. I'm trying out using POSIX message queues instead (in cases where the client and server are on the same machine, of course). My hope is that it will improve performance (specifically via reduced latency). I've worked out most of it, but am not sure about one thing: how to establish the "connection." The server accepts connections from multiple clients concurrently, so I'm tempted to emulate the TCP connection establish process

Postgres not allowing localhost but works with 127.0.0.1

由 喜夏-厌秋 提交于 2019-12-03 11:31:24
Postgres not accepting connection if I say -h localhost but it works if I say -h 127.0.0.1 [root@5d9ca0effd7f opensips]# psql -U postgres -h localhost -W Password for user postgres: psql: FATAL: Ident authentication failed for user "postgres" [root@5d9ca0effd7f opensips]# psql -U postgres -h 127.0.0.1 -W Password for user postgres: psql (8.4.20) Type "help" for help. postgres=# My /var/lib/pgsql/data/pg_hba.conf # TYPE DATABASE USER CIDR-ADDRESS METHOD # "local" is for Unix domain socket connections only local all all trust local all all ident # IPv4 local connections: host all all 127.0.0.1

RabbitMQ new connection refused due to SocketException

由 回眸只為那壹抹淺笑 提交于 2019-12-03 11:27:26
while trying to create a new connection to rabbitmq running on a different server, I got the following error: java.io.IOException at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:106) at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:102) at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:124) at com.rabbitmq.client.impl.AMQConnection.start(AMQConnection.java:406) at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:516) at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:533) Caused by: com.rabbitmq

How can I check my svn connection?

由 北战南征 提交于 2019-12-03 09:55:20
How can I check my svn connection? I just want to try to connect to server and check the status of my connection.. After that I will do something like check out and etc. well may be another way to get it? If you do not have any checked-out working copy, you can use svn ls svn://server/repo which lists contents of the repository if connection is successfull. Other parameters like --username ABC --password XYZ and --non-interactive can be useful too if you are e.g. testing your credentials validity. Also, adding --depth empty should produce empty output if it succeeds (could be useful for

Glassfish Thread Pool, Acceptor Threads, HTTP Max Connections

由 拟墨画扇 提交于 2019-12-03 09:47:50
问题 Please see the attached images, Please help me to understand the relationship between thread pool(max and min thread pool size), acceptor threads and its max connection count and HTTP max connection count. Thread Pool : HTTP: Transport TCP: 回答1: First I'll give you some official documentation Thread Pool The thread pool is the max number of simultaneous requests the server can handle. The server has a queue of connections awaiting to be processed by a thread. Keep in mind that a thread will

Getting “I won't open a connection to” when connecting to FTP server from Google Compute Engine

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-03 09:33:58
I ssh'ed to my compute engine's VM and want to ftp to another server from there. It asked my username and password, I could login without problem. but when I do ls or get , I receive this error: 500 I won't open a connection to 10.240.XX.XX (only to XX.XX.XX.XX) ftp: bind: Address already in use That 10.240.XX.XX is my internal IP address I saw in ifconfig result. How can I transfer files from another server using FTP? System: Debian7 You are using the active mode of FTP to connect to a server running Pure-FTPd. In the active mode, a server has to connect back to a client to open a data
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