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How to wait for all threads to finish, using ExecutorService?
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I can't believe that you have to use shutdown in order to join on all the current threads (after using shutdown, you cannot use the executor again ever). Suggest using list of Future's instead...
– rogerdpack
Nov 2 '12 at 16:02
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Git Tag list, display commit sha1 hashes
...ed but missing in it, like full tag details and tags in the commit history order.
I like this instead, which gives exactly what I want but can't get from git tag:
git log --oneline --decorate --tags --no-walk
This gives a very nice color-coded view of the tags in the reverse chronological order ...
Elegant setup of Python logging in Django
...ilters to get the events I want to the appropriate files, console, syslogs etc. You can of course add handlers to any other loggers too, but there isn't commonly a need for this in my experience.
In each module, I define a logger using
logger = logging.getLogger(__name__)
and use that for loggin...
iPhone viewWillAppear not firing
...vigationController and then pushing a view to it WILL fire viewWillAppear: etc.
– DaGaMs
Nov 7 '11 at 13:44
Swift 3: ...
How to drop a PostgreSQL database if there are active connections to it?
... all postgresql processes that are running by tying this command
sudo /etc/init.d/postgresql restart
type the command
bg to check if other postgresql processes are still running
then followed by dropdb dbname to drop the database
sudo /etc/init.d/postgresql restart
bg
dropdb dbname
Thi...
What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
...nding K1,V2 and K1,V4 to different reducers as they need to be together in order to be reduced.
Tried explaining it as simply as possible
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follo...
What's “requestCode” used for on PendingIntent?
...sed to retrieve the same pending intent instance later on (for cancelling, etc).
Yes, my guess is the alarms will override each other. I would keep the request codes unique.
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How to test if a string is basically an integer in quotes using Ruby
... String
def integer?
[ # In descending order of likeliness:
/^[-+]?[1-9]([0-9]*)?$/, # decimal
/^0[0-7]+$/, # octal
/^0x[0-9A-Fa-f]+$/, # hexadecimal
/^0b[01]+$/ # binary
].each do |match_pattern|...
How to check if a symlink exists
... just test to see if it exists regardless of type (file, directory, socket etc) then use -e
So if file is really file and not just a symbolic link you can do all these tests and
get an exit status whose value indicates the error condition.
if [ ! \( -e "${file}" \) ]
then
echo "%ERROR: file $...
[解决]MySql提示:The server quit without updating PID file(…)失败 - 数...
...rekfan.com/?p=186
4.mysql在启动时没有指定配置文件时会使用/etc/my.cnf配置文件，请打开这个文件查看在[mysqld]节下有没有指定数据目录(datadir)。
解决方法：请在[mysqld]下设置这一行：datadir = /usr/local/mysql/data
5.skip-federated字段问题
...