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Open Redis port for remote connections
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1- Comment out bind 127.0.0.1
2- set requirepass yourpassword
then check if the firewall blocked your port
iptables -L -n
service iptables stop
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Why is exception handling bad?
...ill delete the FrobObject, this looks OK, right? Or maybe not... Imagine then if either FrobManager::HandleFrob() or operator new throws an exception. In this example, the increment of m_NumberOfFrobs does not get rolled back. Thus, anyone using this instance of Frobber is going to have a possib...
How do you configure logging in Hibernate 4 to use SLF4J
...ks directly, if this classloader can't find the target
// log classes, then it doesn't really matter if they're possibly available from the TCCL because we won't be
// able to find it anyway
final ClassLoader cl = LoggerProviders.class.getClassLoader();
try {
// Check the sys...
How to find gaps in sequential numbering in mysql?
...put like so
$(seq 1 99) $(seq 666 667) 50000 $(seq 66419 66456)
You can then copy and paste it into a for loop in a bash terminal to execute a command for every ID
for ID in $(seq 1 99) $(seq 666 667) 50000 $(seq 66419 66456); do
echo $ID
# fill the gaps
done
It's the same thing as above, ...
H2 in-memory database. Table not found
...SON (ID INT PRIMARY KEY, FIRSTNAME VARCHAR(64), LASTNAME VARCHAR(64)); . I then select everything from this (empty) table using SELECT * FROM PERSON . So far, so good.
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How to import CSV file data into a PostgreSQL table?
...ql instruction \copy. \copy invokes COPY FROM STDIN or COPY TO STDOUT, and then fetches/stores the data in a file accessible to the psql client. Thus, file accessibility and access rights depend on the client rather than the server when \copy is used.
and note:
For identity columns, the COPY F...
Generate a heatmap in MatPlotLib using a scatter data set
...rt of normal axes instance, where I can add a title, axis labels, etc. and then do the normal savefig() like I would do for any other typical matplotlib plot.
– gotgenes
Jul 15 '11 at 19:19
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what is reverse() in Django
... this:
url(r'^foo$', some_view, name='url_name'),
In a template you can then refer to this url as:
<!-- django <= 1.4 -->
<a href="{% url url_name %}">link which calls some_view</a>
<!-- django >= 1.5 or with {% load url from future %} in your template -->
<a hr...
sort object properties and JSON.stringify
... tweak yourself, you need to push the object property names into an array, then sort the array alphabetically and iterate through that array (which will be in the right order) and select each value from the object in that order. "hasOwnProperty" is checked also so you definitely have only the object...
Android, getting resource ID from string?
...example above, getIdentifier() would use reflection to get Drawable.class, then another reflection lookup to get the resource ID. That would account for the speed difference. That being said, neither are especially quick and therefore really need to be cached (particularly if used in a loop, or for ...