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How to get a thread and heap dump of a Java process on Windows that's not running in a console
... Make sure to use correct user which started the java process. In my case it was tomcat8 ps -C java -o pid sudo -u tomcat8 jmap -dump:format=b,file=<filename> <pid>
– bitsabhi
Sep 19 '18 at 7:22
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How can I clear an HTML file input with JavaScript?
I want to clear the file input in my form.
18 Answers
18
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NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
I have Puma running as the upstream app server and Riak as my background db cluster. When I send a request that map-reduces a chunk of data for about 25K users and returns it from Riak to the app, I get an error in the Nginx log:
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Are Java static calls more or less expensive than non-static calls?
...r for one method, non-static calls faster for another.
Third: much of the mythos surrounding static versus non-static are based either on very old JVMs (which did not do anywhere near the optimization that Hotspot does), or some remembered trivia about C++ (in which a dynamic call uses one more mem...
what is the difference between OLE DB and ODBC data sources?
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Here's my understanding (non-authoritative):
ODBC is a technology-agnostic open standard supported by most software vendors.
OLEDB is a technology-specific Microsoft's API from the COM-era (COM was a component and interoperability ...
How do I group Windows Form radio buttons?
...oup boxes and panels due to any problem let say I don't have much space on my form. Then?
– Muhammad Saqib
Jan 3 '15 at 10:29
2
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Looping in a spiral
...atrix (N and M are odd). I came up with a solution, but I wanted to see if my fellow SO'ers could come up with a better solution.
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Creating rounded corners using CSS [closed]
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If you want to use all corners with same radius this is the easy way:
.my_rounded_corners{
-webkit-border-radius: 5px;
border-radius: 5px;
}
but if you want to control every corner this is good:
.my_rounded_corners{
border: 1px solid #ccc;
/* each value for each corner ...
Can't seem to discard changes in Git
...
Here is my experience, set following variables in .git/config:
[core]
autocrlf = false
safecrlf = false
eol = crlf
then run $ git checkout HEAD ., and it works. but $ git checkout -- . not, strange!
* git version 1.9....
How to right align widget in horizontal linear layout Android?
...ndroid:layout_gravity="center_vertical"
android:src="@drawable/my_booking_icon" />
</LinearLayout>
with FrameLayout
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/select_car_b...