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Difference between HBase and Hadoop/HDFS
...ata set.
Provides flexible data model.
Hadoop is most suited for offline batch-processing kinda stuff while HBase is used when you have real-time needs.
An analogous comparison would be between MySQL and Ext4.
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Quickly create large file on a Windows system
...'m thinking 5 GB. The content doesn't matter. A built-in command or short batch file would be preferable, but I'll accept an application if there are no other easy ways.
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Iterate all files in a directory using a 'for' loop
...irectory:
for /r %i in (*) do echo %i
Also if you run that command in a batch file you need to double the % signs.
for /r %%i in (*) do echo %%i
(thanks @agnul)
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How to execute a MySQL command from a shell script?
...rver-name" "database-name" < "filename.sql"
Re your comment:
I run batch-mode mysql commands like the above on the command line and in shell scripts all the time. It's hard to diagnose what's wrong with your shell script, because you haven't shared the exact script or any error output. I s...
How to disassemble one single function using objdump?
... as the simplest approach. You can even do it as a one-liner, like:
gdb -batch -ex 'file /bin/ls' -ex 'disassemble main'
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Python: json.loads returns items prefixing with 'u'
...t
>>> jdata = [{u'i': u'imap.gmail.com', u'p': u'aaaa'}, {u'i': u'333imap.com', u'p': u'bbbb'}]
>>> jdata = ast.literal_eval(json.dumps(jdata))
>>> jdata
[{'i': 'imap.gmail.com', 'p': 'aaaa'}, {'i': '333imap.com', 'p': 'bbbb'}]
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How can I read command line parameters from an R script?
....0.2\bin\RScript.exe"
%R_Script% exmpl.R 2010-01-28 example 100 > exmpl.batch 2>&1
Alternatively, using Rterm.exe:
set R_TERM="C:\Program Files\R-3.0.2\bin\i386\Rterm.exe"
%R_TERM% --no-restore --no-save --args 2010-01-28 example 100 < exmpl.R > exmpl.batch 2>&1
exmpl.R:
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How to get folder path from file path with CMD
...om the "for /?" command on the prompt. Hope it helps.
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Top 10 DOS Batch tips (Yes, DOS Batch...) shows batchparams.bat (link to source as a gist):
C:\Temp>batchparams.bat c:\windows\notepad.exe
%~1 = c:\windows\notepad.exe
%~f1 = c:\WINDOWS\NOTEPAD.EXE
%~d1 = ...
Is there any sed like utility for cmd.exe? [closed]
.... The advantage of JScript over VBScript is it can be easily combined with batch in a single script, making the utility easier to use in a batch or command line context. A robust hybrid JScript/batch utility called REPL.BAT is available. It has many command line options. Full documentation is embedd...
初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...aemon_memcached_option | |
| daemon_memcached_r_batch_size | 1 |
| daemon_memcached_w_batch_size | 1 |
+----------------------------------+------------------+
注意：daemon_memcached_r_batch_size和daemon_memcached_w_batch_size，...