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1 ls 2 git clone git://github.com/yaoweibin/ngx_http_substitutions_filter_module.git 3 ls 4 wget h ttp://nginx.org/download/nginx-1.8.0.tar.gz 5 ls 6 tar–xvf nginx-1.8.0.tar.gz 7 tar--xvf Nginx-1.8.0.tar. GZ 8 TAR-XVF nginx-1.8.0.tar.gz 9 ls cd NGINX-1.8.0/11 ls/configure--user=www--group=w WW--add-module=. /ngx_http_substitutions_filter_module--prefix=/usr/share/nginx--sbin-path=/usr/sbin/nginx--conf-path=/etc/ nginx/nginx.conf--error-log-path=/var/log/nginx/error.log--http-log-path=/var/log/ng

package?1, permissions, must have SYSDBA to perform the process of the permissions , in addition to open timed_statistics.2, determine the asynchronous I/O in the database all the data files and temporary files have been applied to launch, we can through the V$datafile and V$iostat_file View Association, confirmation.Col name format A50select name,asynch_io from V$datafile f,v$iostat_file iwhere f.file#=i.file_noand (filetype_name= ' Data file ' or filetype_name= ' Temp file ');Verify that the

control , of course, the memory is large enough to have enough space to apply for the thread pool, but generally a process of thread pools are generally limited or not recommended too much, and under limited system resources, to improve performance, we began to have new IO technology, which is NIO technology, the new version of the inside with AIO technology, NiO can only be asynchronous Io, but in the middle of the read and write process is still bl

refer to (Metalink Note: 139272.1). create an aio character device #/sbin/mknod/dev/async c 101 0x0 # chown oracle: dba/dev/async # chmod 660/dev/async B. use sam to adjust Kernel parameters-> Kernel Configuration-> Drivers-> select 'asyncdsk'-> Actions> Add Driver to Kernel. (in this case, the pending state changes from out to in.)-> Kernel Con Figuration-> Configurable Parameters-> max_async_ports is set to the 'Processes' value in the initializati

Anyone who has some experience using Informix databases knows that Informix has two Io Methods: AIO and Kaio. AIO is the traditional synchronous Io, but most Informix users do not know Kaio. Kaio is called Kernel I/O. because it uses the kernel I/O of the operating system, Io reads and writes faster than AIO, which improves the efficiency of the Informix database

July 12. 2004. I met a couple of time the problem. The nearest time was last week. Solution-from Metalink note. Problem description:================================Running svrmgrl (or any other Oracle tool such as SQL * Plus) on an IBM AIX RS/6000Machine returns: On AIX prior to 4.3:Cocould not load program OracleSymbol kaio_rdwr in/usr/lib/libc. A is undefinedSymbol iosuspend in/usr/lib/libc. A is undefinedSymbol cancel in/usr/lib/libc. A is undefinedSymbol listio in/usr/lib/libc. A is undefine

access flags */unsigned long cpu_vm_mask; /* lazy TLB switch mask */unsigned long swap_address;/* last scanned address */unsigned dumpable: 1;/* Can this mm core dump? */INT used_hugetlb;/* used hugetlb pages? */Mm_context_t context;/* arch-specific data */INT core_waiters;/* thread core dump waiters */struct completion * core_startup_done;/* Core start completion */struct completion core_done; /* Core end completion */rwlock_t ioctx_list_lock;/* aio

_ tw_recycle = 1 # Ulimit-N 65536 # Deadconn_last $ server $ svrport num_connectionsWhere num_connections is one of 0, 50,100,200,400,800,100 0, 2000,400 0, 6000,800 0, 10000,120 00, 14000,160 00. After deadconn_last reports num_connections established# Httperf -- Server = $ server -- Port = $ svrport -- think-Timeout 5 -- timeout 5 -- num-CILS 20000 -- num-Conns 100 -- hog -- rate 100 Results For dphttpd up Pipetest David Steven s added support for sys_epoll to Ben lahaise's or

Analysis # As shown in the preceding error log, the key information io_setup () failed with EAGAIN 3. troubleshooting SZDB :~ # Vi/etc/sysctl. conf SZDB :~ # Sysctl-p # Author: Leshami SZDB :~ #/Etc/init. d/mysql start # adjusted and started successfully 4. About fs. aio-max-nr Aio-nr aio-max-nr: NAME SYNOPSIS Tag Description DESCRIPTION: Return value: ERRORS:

: waiting for I/o request (read thread) I/O thread 6 state: waiting for I/o request (write thread) I/O thread 7 state: waiting for I/o request (write thread) I/O thread 8 state: waiting for I/o request (write thread) I/O thread 9 state: waiting for I/o request (write thread) Pending normal aio reads: 0 [0, 0, 0, 0], aio writes: 0 [0, 0, 0, 0], Ibuf aio reads: 0,

on all application servers according to certain policies. The agent receives information from the Deployment Server, including the program, which is placed in a specified directory. The agent stops the server (or a specific application), replaces the relevant files, and then starts the server (or a specific application ). There will be two types of customers to deploy the server, one is artifact, and the other is artifact. For the sake of prototype simplicity, here we introduce any

isolation level | REPEATABLE-READ adaptive flushing | on adaptive checkpoint | checkpoint age | 0 InnoDB queue | 0 queries inside InnoDB, 0 queries in queue oldest transaction | 0 seconds history list Len | 1899 read views | 1 UNDO log entries | 0 transactions, 0 total undo, 0 Max undo pending I/o reads | 0 Buf pool reads, 0 normal AIO, 0 ibuf AIO, 0 preads pending I/O writes | 0 Buf pool (0 LRU, 0 flush l

Preface MySQL has been used for some time. However, installation of MySQL is based on the software source on Linux, and then started conveniently using the shell of MySQL, I do not know much about MySQL internal startup parameters, So I download the tar package of MySQL from the MySQL official website, install and start it on my own, and understand MySQLProgramTo help you troubleshoot the startup process and learn more about MySQL. Environment Ubuntu 12.04 32bit Download MySQL 1. Downl

, which should purge all transactions: ------------TRANSACTIONS------------Trx id counter 0 16644Purge done FOR trx's n: o Make sure that innodb does not perform write operations any more: File I/O--------I/O thread 0 state: waiting FOR I/o request (INSERT buffer thread)I/O thread 1 state: waiting FOR I/o request (log thread)I/O thread 2 state: waiting FOR I/o request (READ thread)I/O thread 3 state: waiting FOR I/o request (WRITE thread)Pending normal aio