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ERROR 2006 (HY000): MySQL server has gone away
...ve "SHOW VARIABLES LIKE 'max_allowed_packet'"
You got a timeout from the TCP/IP connection on the client side.
Solution: Increase wait_timeout variable.
You tried to run a query after the connection to the server has been closed.
Solution: A logic error in the application should be corrected.
Ho...
What is a web service endpoint?
...point. So, in general endpoints are predefined access points, used within TCP/IP networks to initiate a process and/or return a response. Endpoints could contain parameters passed within the URL, as key value pairs, multiple key value pairs are separated by an ampersand, allowing the endpoint to c...
How can I generate a unique ID in Python? [duplicate]
..., but the uuid backend that use uuidlib forked without closing FDs, so the TCP sockets I had open at the time would never be closed and I couldn't reopen the port later. I'd have to manually kill uuidd as root. I worked around this by setting uuid._uuid_generate_time and uuid._uuid_generate_random...
MVC Vs n-tier architecture
...sors), but the point here is N-Tier aludes to a physical network hop (e.g. TCP/IP). Locally you would be more efficent to use named pipes, but again, if you run on the same system you are competitng for memory and processing power. All of these are the reasons to consider isolating presentation, B...
Cassandra port usage - how are the ports used?
...
For Apache Cassandra 2.0 you need to take into account the following TCP ports:
(See EC2 security group configuration and Apache Cassandra FAQ)
Cassandra
7199 JMX monitoring port
1024 - 65355 Random port required by JMX. Starting with Java 7u4 a specific port can be specified using the com....
Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...aging/Message Queue/Duplex Communication，选择WCF
如果服务需要在TCP/Named Pipes/UDP (wcf 4.5)，选择WCF
如果服务需要在http协议上，并且希望利用http协议的各种功能，选择Web API
如果服务需要被各种客户端(特别是移动客户端)调用，选择Web API...
What does it mean when an HTTP request returns status code 0?
...urned). This means the connection was accepted and then closed gracefully (TCP FIN).
There are a number of things which could cause this, but based off of your description, some form of firewall seems the most likely culprit.
...
socket.emit() vs. socket.send()
...re, future readers of this post, that this is about socket.io, not node.js TCP, UDP or Unix sockets.
– aredridel
Nov 25 '12 at 16:42
3
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postgresql port confusion 5433 or 5432?
...ng to the same unix socket.
Most Mac users work around this by just using tcp/ip with psql -h localhost. You can also specify a port if required, eg psql -h localhost -p 5433. You might have multiple PostgreSQL instances running so make sure you're connecting to the right one by using select versio...
How to prevent SIGPIPEs (or handle them properly)
I have a small server program that accepts connections on a TCP or local UNIX socket, reads a simple command and, depending on the command, sends a reply. The problem is that the client may have no interest in the answer sometimes and exits early, so writing to that socket will cause a SIGPIPE and m...