. connectfuture connectfuture = connector.connect (address); connectfuture.awaituninterruptibly (); Sync, wait until the connection is complete
. If (Connectfuture.isdone ()) {
. If (!connectfuture.isconnected ()) { //If no connection succeeds within the specified time, an exception is thrown
. Logger.info ("Fail to connect" + loginfo);
. Throw new Exception ();
. }
After analysis, causing the ho
* * Program Head NOTE start * Copyright and version Statement of the program (c) 2011, University of Yantai Computer Students * All rights reserved.
* File name: GUI (Practice-open and save files) * Author: Shigung * Completion Date: September 22, 2011
* Version Number: x1.0 * Description of tasks and solutions * Input Description: * Problem Description: * Program output: * program Head of the comment en
Tags: MySQL changes the maximum number of open files1. View Kernel limits# ulimit-n
655352. Modify the MY.CNF limit# vi/etc/my.cnf
[mysqld]
open_files_limit = 655353. Restart Mysqld#/etc/init.d/mysql Restart4. View ResultsMysql>show Global variables like '%open% ';|Open_files_limit | 65535 ||Table_open_cache | 1000 |Mysql> show global status like ' open_% ';+--------------------------+-------+| variable_nam
I believe everyone in the running and database dealing with ASP files encountered a problem:
Microsoft OLE DB Provider for ODBC Drivers error ' 80004005 '
[Microsoft] [ODBC Microsoft Access Driver] Common error cannot open registry key ' temporary (volatile) Jet DSN for process 0x1844 Thread 0X1B40 DBC 0x554cc59 C Jet '.
/friends/conn.asp, Line 5
Yesterday I also met, the previous solution is to reinstall t
BackgroundRecently found an error in the work, the following error occurs frequently when executing a multithreaded scan scriptHttpconnectionpool (host= ' t.tips ', port=80): Max retries exceeded with URL:/index.php (caused by newconnectionerror (' More bizarre ...AnalysisBo master himself in some small projects often need to carry out multi-threaded batch scanning to collect data, such as the ability to collect data, of course, the more threads the better, so I usually use 3,000 threads to scan
What does the PSP's ISO and CSO files open with?
Generally is the PSP Simulator (JPCSP) Open, JPCSP is a well-known PS2 simulator development team of the development of the PC version of the PSP Simulator, from the team's masterpiece PCSX2 (PS2 simulator) to be able to run the most PS2 game is known.
Both Ps:iso and CSO are placed in the ISO folder and d
1. Main direction: In the source project to find all references to InputStream or other streams, to see if it is used up, normal close off, it is recommended here to put the flow close to the finally block, so the exception will also go to the close stream.
2. Secondary direction: Session or other useful to the socket code, carefully check to see if there is no resources to release the place
Also attached:
The following 2 instructions in Linux show that 1024 of the system default
Tags: physical partition Division LVM Encounter small problemsCan ' t open/dev/sdb1 exclusively. Mounted filesystem?This is a common problem that everyone divides LVM on the physical partition.This time I also encountered this problem when we try to first try to1, df-h display also did not mount2, then suspect may be the problem of the folder input: Partprobe, to create a folderAnd then in the second pvcreate/dev/sdb1, but found the result is still no
Download Open SSHDefault installationOpen server Option to link windowSsh-v (for OpenSSH 6.3 versions prior to useSsh-v (for OpenSSH 6.4 versions after useHow to view a user nameUse ssh localhost to connect to the native computer firstThe user name will be completed by default after use,Use SSH username @ip in Ubuntu after username to connect windowAfter I enter here will have noon garbled, still not solved ...Use the SCP command under Windows to inst
Permanent means of entry into force:
centos6.x(1), cd/etc/security/
VI limits.d/90-nproc.confAdd to:* Soft Nproc 65535* Hard Nproc 65535* Soft Nofile 65535* Hard Nofile 65535(2) vi/etc/security/limits.conf* Soft Nproc 65535* Hard Nproc 65535* Soft Nofile 65535* Hard Nofile 65535centos5.xVi/etc/security/limits.confAdd to:* Soft Nproc 65535* Hard Nproc 65535* Soft Nofile 65535* Hard Nofile 65535This article is from the "Xbzy" blog, make sure to keep this source htt
Label:1. Questions: Problems with the C # language (similar to C + +, method consistent), I also encountered this problem with QT and VS2013 Compile the link is not a problem, debugging with the following error prompt: 2. Solution The first step: Step two : "Debug"-"Options and Settings" Step three : "General" tab--Tick "Enable resource server support" to determine Fourth Step : ignore the alert and continue. Switch to the "Symbols" tab and tick "Microsoft symbol server" Ignore the securi
Basic conceptsThe number of open files, as a literal meaning, refers to the number of open files.Previously, I have been thinking, "Open file" is a concept of what. Later, learned a little C language, only to understand that the program to access a file is required to open t
Relationship between file descriptors and open files in LinuxRelationship between file descriptors and open files in LinuxGuideThe kernel uses file descriptor to access files. The file descriptor is a non-negative integer. When an existing file is opened or a new file is cre
The error message is as follows:..... 150905 13:10:17 [ERROR]/usr/local/mysql/bin/mysqld:can ' t open file: './mytest/t1.frm ' (errno:24) 150905 13:10:17 [Error ]/usr/local/mysql/bin/mysqld:can ' t open file: './mytest/t2.frm ' (errno:24) ... 150905 13:10:17 [ERROR] Error in Accept:too many open files ....Notice that t
1. OverviewIn the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, directory files, linked files and device files. File descriptor is the index created by the kernel in order to efficiently manage files that have been op
Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/389652391. Overviewin the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, directory files, linked files and device files. File descriptor is the index created by the kernel in order to eff
In Ubuntu, use the command line to quickly open various types of files. in Ubuntu, when you need to open files in other formats, we usually go to the directory where the files are located. double-click to open the
VI commands for opening and editing multiple files can be divided into two situations:
1. open multiple files in the same window:
VIFile1 file2 file3: NSwitch to the next file (n = NEXT): NSwitch to the previous file
2. open multiple files in different windows:
If you have
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