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Linux: is there a read or recv from socket with timeout?
How can I try to read data from socket with timeout?
I know, select, pselect, poll, has a timeout field, but using of them disables "tcp fast-path" in tcp reno stack.
...
How to check which locks are held on a table
...pful to you.
You can check which statements are blocked by running this:
select cmd,* from sys.sysprocesses
where blocked > 0
It will also tell you what each block is waiting on. So you can trace that all the way up to see which statement caused the first block that caused the other blocks.
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Go install fails with error: no install location for directory xxx outside GOPATH
...LTS.
export GOPATH=~/go
mkdir ~/go/bin
export GOBIN=$GOPATH/bin
The selected answer did not solve the problem for me.
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How do I generate a random int number?
...SEED.This SEED is the beginning point, the trigger which instigates him to select the RANDOM value.
Now if a SEED is easy to guess then those kind of random numbers are termed as PSEUDO and when a seed is difficult to guess those random numbers are termed SECURED random numbers.
For example a perso...
MySQL Server has gone away when importing large sql file
...r. To get their values, type in the mysql client:
> select @@wait_timeout;
> select @@max_allowed_packet;
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Is there a way for multiple processes to share a listening socket?
...nt
polling mechanisms:
aio/devpoll/epoll/eventpoll/kqueue/poll/rtsig/select
When a connection arrives on any of the listening sockets
(POP3/IMAP/SMTP), each worker process emerges from its event poll,
since each NGINX worker process inherits the listening socket. Then,
each NGIN...
convert_tz returns null
...L's dev site) the command was unable to convert between timezones such as
SELECT CONVERT_TZ('2004-01-01 12:00:00','UTC','MET') AS time
It turns out that on OS X there are two files that cause problems: /usr/share/zoneinfo/Factory and /usr/share/zoneinfo/+VERSION.
The fix... temporarily moving t...
dynamically add and remove view to viewpager
...gram. hope this would help you.In its first activity four grid data can be selected. On the next activity, there is a view pager which contains two mandatory pages.And 4 more pages will be there, which will be visible corresponding to the grid data selected.
Following is the mainactivty
MainActivi...
Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
... the settings panel by clicking on the padlock and entering your password.
Select the PostgreSQL user and click on the minus button.
Restore your shared memory settings:
sudo rm /etc/sysctl.conf
That should be all! The uninstall wizard would have removed all icons and start-up applications file...
How to use an existing database with an Android application [duplicate]
... public Cursor getTestData() {
try {
String sql ="SELECT * FROM myTable";
Cursor mCur = mDb.rawQuery(sql, null);
if (mCur != null) {
mCur.moveToNext();
}
return mCur;
} catch (SQLException mSQLExcep...