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Lazy Method for Reading Big File in Python?
...piece in iter(read1k, ''):
process_data(piece)
If the file is line-based, the file object is already a lazy generator of lines:
for line in open('really_big_file.dat'):
process_data(line)
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What is an SSTable?
...ed in the form of SSTables.
SSTable (directly mapped to GFS) is key-value based immutable storage. It stores chunks of data, each is of 64KB.
Definitions:
Index of the keys: key and starting location
Chunk is a storage unit in GFS, replica management are by chunk
...
Export Data from mysql Workbench 6.0
...rogram Files\MySQL\MySQL Workbench 6.3 CE\modules (32-bit installation on x64 systems: C:\Program Files (x86)\MySQL\MySQL Workbench 6.3 CE\modules)
b) Mac OS X: Applications/MYSQLWorkbench.app/Contents/Resources/plugins - right click on the app and select Show Package contents to get inside the app...
How to parse unix timestamp to time.Time
...timestamps. Instead you can use strconv.ParseInt to parse the string to int64 and create the timestamp with time.Unix:
package main
import (
"fmt"
"time"
"strconv"
)
func main() {
i, err := strconv.ParseInt("1405544146", 10, 64)
if err != nil {
panic(err)
}
tm ...
How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]
...
64
You can download a Java Portable from PortableApps.com. It will not change your system settings...
Copy a file in a sane, safe and efficient way
...
64
With C++17 the standard way to copy a file will be including the <filesystem> header and ...
How do I analyze a program's core dump file with GDB when it has command-line parameters?
...2'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000564583cf2759 in myfunc (i=3) at main.c:7
7 *(int*)(NULL) = i; /* line 7 */
(gdb) bt
#0 0x0000564583cf2759 in myfunc (i=3) at main.c:7
#1 0x0000564583cf2858 in main (argc=3, argv=0x7ffcca4effa8) at main.c:2
So not...
How does RegexOptions.Compiled work?
...
1) Base Class Library Team on compiled regex
2) Coding Horror, referencing #1 with some good points on the tradeoffs
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Increasing (or decreasing) the memory available to R processes
...
64
From:
http://gking.harvard.edu/zelig/docs/How_do_I2.html (mirror)
Windows users may get t...
How to make/get a multi size .ico file? [closed]
...ick in front of any commands.
magick convert icon-16.png icon-32.png icon-64.png icon-128.png icon.ico
See also http://www.imagemagick.org/Usage/thumbnails/#favicon, that has the example:
magick convert image.png -bordercolor white -border 0 \
\( -clone 0 -resize 16x16 \) \
\...