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Purge Kafka Topic
...r is correct, that method has been deprecated. Topic configuration should now be done via kafka-configs.
kafka-configs --zookeeper localhost:2181 --entity-type topics --alter --add-config retention.ms=1000 --entity-name MyTopic
Configurations set via this method can be displayed with the command...
How can I make git do the “did you mean” suggestion?
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I have been using fuck command for 2 years now, it has become one of my "cannot live without it" terminal modifications!!
– Noah Sussman
Jan 29 '17 at 6:35
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Is it possible to create a “weak reference” in javascript?
...ou can't make a proxy wrapper object, because in JavaScript objects never know when they're about to be garbage-collected.
So your ‘weak reference’ becomes a key (eg. integer) in a simple lookup, with an add-reference and remove-reference method, and when there are no manually-tracked reference...
Proper use cases for Android UserManager.isUserAGoat()?
...;As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method can
* now automatically identify goats using advanced goat recognition technology.</p>
*
* @return Returns true if the user making this call is a goat.
*/
public boolean isUserAGoat() {
return mContext.getPackageManage...
append new row to old csv file python
...rder to avoid the newline problem, you must declare it as newline=''.
Now you can open the file in 'a'mode (without the b).
import csv
with open(r'names.csv', 'a', newline='') as csvfile:
fieldnames = ['This','aNew']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
writer...
Soft keyboard open and close listener in an activity in Android
... press back then it closes keyboard & but didn't click on other views, now again I click on same edittext which already have focus then what will happen ?
– N Sharma
Sep 12 '14 at 10:17
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Cron and virtualenv
...t; myserver.cron
$ crontab myserver.cron
The crontab's first line should now look like this:
PATH=/home/me/virtualenv/bin:/usr/bin:/bin: # [etc...]
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Difference between FOR and AFTER triggers?
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That syntax is also acceptable in older versions of SQL Server. However, now that there are two types of triggers in SQL Server 2000, I prefer to refer to FOR triggers as AFTER triggers. Thus, for the remainder of this article I will refer to either AFTER or INSTEAD OF triggers.
Like the AFTER tri...
Convert unix time to readable date in pandas dataframe
...sense. Pandas: Converting to Timestamps goes through it pretty nicely also now I know about to_datetime.
– W A Carnegie
Oct 7 '13 at 22:55
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Friend declaration in C++ - difference between public and private
...re's no difference - you just tell that class B is a friend of class A and now can access its private and protected members, that's all.
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