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Dealing with “java.lang.OutOfMemoryError: PermGen space” error
...
The solution was to add these flags to JVM command line when Tomcat is started:
-XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled
You can do that by shutting down the tomcat service, then going into the Tomcat/bin directory and running tomcat6w.exe. Under th...
When should you not use virtual destructors?
... is not a good answer. "There is no need" is different from "should not", and "no intention" is different from "made impossible".
– Windows programmer
Nov 19 '08 at 4:59
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How to use System.Net.HttpClient to post a complex type?
...ct that contains the correct properties, serializing it using this method, and passing it that way, but I get a 500 Internal Server Error. It never hits the web api controller method.
– indot_brad
Apr 24 '12 at 20:14
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How to convert index of a pandas dataframe into a column?
...26 C 2 0.0139
2016-02-27 A 2 0.5577
2016-02-28 C 6 0.0303
and you want to convert the 1st (tick) and 3rd (obs) levels in the index into columns, you would do:
>>> df.reset_index(level=['tick', 'obs'])
tick obs val
tag
C 2016-02-26 ...
Gradle finds wrong JAVA_HOME even though it's correctly set
...E=/usr/lib/jvm/default-java
Commenting this line out solves the problem, and Gradle finds the correct path to the Java binary.
If you just download the binary from their website it does not have this problem,
It's an issue with the Ubuntu repo version. There also seem to be some other issues wi...
Cancel split window in Vim
...window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window.
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Max retries exceeded with URL in requests
...ixed my problem - a bit of a hack, but by looping a couple of times while handling the error response, I was able to brute force a solution.
– elPastor
Mar 29 '17 at 0:20
16
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Golang: How to pad a number with zeros when printing?
...d|%6d|\n", 12, 345)
Notice the 0 in %06d, that will make it a width of 6 and pad it with zeros. The second one will pad with spaces.
You can see it in action here: http://play.golang.org/p/cinDspMccp
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What steps should I take to protect my Google Maps API Key?
...ther users.
So :
There is nothing you can do ; this is the way it works
And there is not much you should worry about, I'd say.
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“java.lang.OutOfMemoryError : unable to create new native Thread”
...nder the control of an Executor if at all possible. There are plenty of standard executors with various behavior which your code can easily control.
(There are many reasons why the number of threads is limited, but they vary from operating system to operating system)
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