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What does -XX:MaxPermSize do?
...lication servers and some IDE like Eclipse) :
The permanent generation does not have a noticeable impact on garbage
collector performance for most applications. However, some
applications dynamically generate and load many classes; for example,
some implementations of JavaServer Pages (JSP...
Find the PID of a process that uses a port on Windows
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here how do i get only the pid, since it returns entire details
– Gobi M
Jun 6 '14 at 1:27
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Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFa
I am totally new to Spring and started to do the official guides from this site:
https://spring.io/guides
27 Answers
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How can I do SELECT UNIQUE with LINQ?
...passed into function} => {object used to sort}. Since we have already done the Select, the only thing in the collection being sorted is the names.
– James Curran
Aug 20 '10 at 11:35
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In Gradle, how do I declare common dependencies in a single place?
...Management to define what version of the lib it should take. How would you do the same with Gradle?
– Stanislav Bashkyrtsev
Mar 5 '12 at 13:04
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Increasing the maximum number of TCP/IP connections in Linux
...rther increase the availability by decreasing the fin_timeout. Suppose you do both, you should see over 1500 outbound connections per second, more readily.
To change the values:
sysctl net.ipv4.ip_local_port_range="15000 61000"
sysctl net.ipv4.tcp_fin_timeout=30
The above should not be interpret...
What is a database transaction?
...assical example is transferring money from one bank account to another. To do that you have first to withdraw the amount from the source account, and then deposit it to the destination account. The operation has to succeed in full. If you stop halfway, the money will be lost, and that is Very Bad.
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What do the arrow icons in Subclipse mean?
What do the icons in the following screen capture mean? The icons are from Subclipse, an SVN plugin for Eclipse.
1 Answer
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Node.js and CPU intensive requests
...ue is the workers can be written in a different language. Just pop a task, do the work, and write the response back.
something like this https://github.com/resque/resque
Here is an article from github about why they built it http://github.com/blog/542-introducing-resque
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How do I access the command history from IDLE?
On bash or Window's Command Prompt, we can press the up arrow on keyboard to get the last command, and edit it, and press ENTER again to see the result.
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