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How accurately should I store latitude and longitude?
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For latitude, use (8,6) (or (6,4) to save save a byte (in MySQL).
– Rick James
May 2 '18 at 4:09
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Include all existing fields and add new fields to document
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You can use $$ROOT to references the root document. Keep all fields of this document in a field and try to get it after that (depending on your client system: Java, C++, ...)
[
{
$project: {
custom_field: "$obj.ob...
no acceptable C compiler found in $PATH when installing python
...lled or it's not in your $PATH variable.
To install gcc use this: (run as root)
Redhat base:
yum groupinstall "Development Tools"
Debian base:
apt-get install build-essential
share
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improve...
Linux 进程卡住了怎么办？ - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ffffffff>] 0xffffffffffffffff
这时候按 Ctrl+C 也不能退出。
root@localhost:~# ls /jfs
^C
^C^C^C^C^C
但是用 strace 却能唤醒它，并且开始处理之前的中断信号，然后就退出了。
root@localhost:~# strace -p `pgrep ls`
strace: Process 26469 attached
--- SI...
Python executable not finding libpython shared library
...ce configure directives to handle alternate library paths (not everyone is root you know...) In the simplest case all you need is the following:
./configure --enable-shared \
--prefix=/usr/local \
LDFLAGS="-Wl,--rpath=/usr/local/lib"
Or if you prefer the non-linux version...
How do you remove the root CA certificate that fiddler installs
Fiddler helpfully offers to add a unique root CA certificate to intercept HTTPS traffic.
4 Answers
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Using ls to list directories and their total sizes
...%-7s ", SIZES["./" $9]), $0);
print $0
}
Sample output:
drwxr-xr-x 2 root root 4.0K Feb 12 16:43 cgi-bin
drwxrws--- 6 root www 20M Feb 18 11:07 document_root
drwxr-xr-x 3 root root 1.3M Feb 18 00:18 icons
drwxrwsr-x 2 localusr www 8.0K Dec 27 01:23 passwd
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IIS - 401.3 - Unauthorized
...e account assigned to the app pool identity property
In IIS, at the server root node, set anonymous user to inherit from
app pool identity. (This was the part I struggled with)
To set the server anonymous to inherit from the app pool identity do the following..
Open IIS Manager (inetmgr)
In the ...
JPA: what is the proper pattern for iterating over large result sets?
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I tried the answers presented here, but JBoss 5.1 + MySQL Connector/J 5.1.15 + Hibernate 3.3.2 didn't work with those. We've just migrated from JBoss 4.x to JBoss 5.1, so we've stuck with it for now, and thus the latest Hibernate we can use is 3.3.2.
Adding couple of extra pa...
Check if full path given
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Try using System.IO.Path.IsPathRooted? It also returns true for absolute paths.
System.IO.Path.IsPathRooted(@"c:\foo"); // true
System.IO.Path.IsPathRooted(@"\foo"); // true
System.IO.Path.IsPathRooted("foo"); // false
System.IO.Path.IsPathRooted(@"c:1\f...