linux 下tomcat安装apr运行模式优化并发性能
2017-03-03 16:08
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(一)简单介绍
Tomcat支持三种接收请求的处理方式:BIO、NIO、APR 。
BIO由于每个请求都要创建一个线程来处理,线程开销比较大,不能再高并发的场景,性能也是最低的。
NIO是一个基于缓冲区、并能提供非阻塞I/O操作的Java API,比传统的bio更好的并发性能。
APR(Apache Portable Run-time libraries)简单理解,就是从操作系统级别解决异步IO问题,大幅度的提高服务器的处理和响应性能, 也是Tomcat运行高并发应用的首选模式。 启用这种模式稍微麻烦一些,需要安装一些依赖库,以下就是安装所需的条件:
1,最新的apr
2,最新的apr-util
3,tomcat-native.tar.gz(在tomcat/bin/下有相应的安装tar包
(二)安装步骤
1,安装相应的依赖库
3,下载安装apr-util(http://apr.apache.org/download.cgi)
3,安装tomcat-native。
方法一:源码安装,不过安装过程中会有一些依赖,特别麻烦,我上次在这个问题上一直有报错,浪费掉一两天的时间才解决。一般tomcat的/bin/下都会有这个安装文件。
方法二:使用yum安装,方便快捷省时省力比较推荐。
查看启动日志,即为完成。
(三)tomcat优化
(1)优化连接池
[root@Monitor local]# vim /usr/local/apache-tomcat-7.0.63/conf/server.xml
Tomcat支持三种接收请求的处理方式:BIO、NIO、APR 。
BIO由于每个请求都要创建一个线程来处理,线程开销比较大,不能再高并发的场景,性能也是最低的。
NIO是一个基于缓冲区、并能提供非阻塞I/O操作的Java API,比传统的bio更好的并发性能。
APR(Apache Portable Run-time libraries)简单理解,就是从操作系统级别解决异步IO问题,大幅度的提高服务器的处理和响应性能, 也是Tomcat运行高并发应用的首选模式。 启用这种模式稍微麻烦一些,需要安装一些依赖库,以下就是安装所需的条件:
1,最新的apr
2,最新的apr-util
3,tomcat-native.tar.gz(在tomcat/bin/下有相应的安装tar包
(二)安装步骤
1,安装相应的依赖库
[root@ittestserver1 opt]# yum install -y apr-devel openssl-devel gcc make Loaded plugins: fastestmirror Determining fastest mirrors * base: mirrors.163.com * epel: mirror01.idc.hinet.net * extras: mirrors.163.com * updates: mirrors.cn99.com base | 3.7 kB 00:00 epel | 4.3 kB 00:00 epel/primary_db | 5.9 MB 00:01 extras | 3.4 kB 00:00 jenkins | 2.9 kB 00:00 jenkins/primary_db | 19 kB 00:01 updates | 3.4 kB 00:00 updates/primary_db | 5.4 MB 00:02 Setting up Install Process Package apr-devel-1.3.9-5.el6_2.x86_64 already installed and latest version Resolving Dependencies --> Running transaction check ---> Package gcc.x86_64 0:4.4.7-16.el6 will be updated --> Processing Dependency: gcc = 4.4.7-16.el6 for package: gcc-c++-4.4.7-16.el6.x86_64 ---> Package gcc.x86_64 0:4.4.7-17.el6 will be an update --> Processing Dependency: libgomp = 4.4.7-17.el6 for package: gcc-4.4.7-17.el6.x86_64 --> Processing Dependency: cpp = 4.4.7-17.el6 for package: gcc-4.4.7-17.el6.x86_64 --> Processing Dependency: libgcc >= 4.4.7-17.el6 for package: gcc-4.4.7-17.el6.x86_64 gcc.x86_64 0:4.4.7-17.el6 make.x86_64 1:3.81-23.el6 openssl-devel.x86_64 0:1.0.1e-48.el6_8.4 Dependency Updated: cpp.x86_64 0:4.4.7-17.el6 gcc-c++.x86_64 0:4.4.7-17.el6 libgcc.x86_64 0:4.4.7-17.el6 libgomp.x86_64 0:4.4.7-17.el6 libstdc++.x86_64 0:4.4.7-17.el6 libstdc++-devel.x86_64 0:4.4.7-17.el6 openssl.x86_64 0:1.0.1e-48.el6_8.4 Complete!2,安装apr动态库,将最新版本的apr下载到目录下(http://apr.apache.org) 目前最新的是apr-1.5.2.tar.gz
[root@Monitor install]# wget http://mirrors.cnnic.cn/apache//apr/apr-1.5.2.tar.gz --2017-03-02 17:17:32-- http://mirrors.cnnic.cn/apache//apr/apr-1.5.2.tar.gz 正在解析主机 mirrors.cnnic.cn... 218.241.113.17 正在连接 mirrors.cnnic.cn|218.241.113.17|:80... 已连接。 已发出 HTTP 请求,正在等待回应... 200 OK 长度:1031613 (1007K) [application/octet-stream] 正在保存至: “apr-1.5.2.tar.gz” 100%[===========================================================================================>] 1,031,613 1.69M/s in 0.6s 2017-03-02 17:17:33 (1.69 MB/s) - 已保存 “apr-1.5.2.tar.gz” [1031613/1031613]) [root@Monitor install]# tar xf apr-1.5.2.tar.gz [root@Monitor install]# cd apr-1.5.2 [root@Monitor apr-1.5.2]# ./configure --prefix=/usr/local/apr checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu Configuring APR library Platform: x86_64-unknown-linux-gnu checking for working mkdir -p... yes APR Version: 1.5.2 checking for chosen layout... apr checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... no Restore user-defined environment settings... restoring CPPFLAGS to "" setting EXTRA_CPPFLAGS to "-DLINUX -D_REENTRANT -D_GNU_SOURCE" restoring CFLAGS to "" setting EXTRA_CFLAGS to "-g -O2 -pthread" restoring LDFLAGS to "" setting EXTRA_LDFLAGS to "" restoring LIBS to "" setting EXTRA_LIBS to "-lrt -lcrypt -lpthread" restoring INCLUDES to "" setting EXTRA_INCLUDES to "" configure: creating ./config.status config.status: creating Makefile config.status: creating include/apr.h config.status: creating build/apr_rules.mk config.status: creating build/pkg/pkginfo config.status: creating apr-1-config config.status: creating apr.pc config.status: creating test/Makefile config.status: creating test/internal/Makefile config.status: creating include/arch/unix/apr_private.h config.status: executing libtool commands rm: cannot remove `libtoolT': No such file or directory config.status: executing default commands [root@Monitor apr-1.5.2]# make && make install make[1]: Entering directory `/tmp/install/apr-1.5.2' /tmp/install/apr-1.5.2/build/mkdir.sh tools /bin/sh /tmp/install/apr-1.5.2/libtool --silent --mode=compile gcc -g -O2 -pthread -DHAVE_CONFIG_H -DLINUX -D_REENTRANT -D_GNU_SOURCE -I./include -I/tmp/install/apr-1.5.2/include/arch/unix -I./include/arch/unix -I/tmp/install/apr-1.5.2/include/arch/unix -I/tmp/install/apr-1.5.2/include -I/tmp/install/apr-1.5.2/include/private -I/tmp/install/apr-1.5.2/include/private -o tools/gen_test_char.lo -c tools/gen_test_char.c && touch tools/gen_test_char.lo /bin/sh /tmp/install/apr-1.5.2/libtool --silent --mode=link gcc -g -O2 -pthread -DHAVE_CONFIG_H -DLINUX -D_REENTRANT -D_GNU_SOURCE -I./include -I/tmp/install/apr-1.5.2/include/arch/unix -I./include/arch/unix -I/tmp/install/apr-1.5.2/include/arch/unix -I/tmp/install/apr-1.5.2/include -I/tmp/install/apr-1.5.2/include/private -I/tmp/install/apr-1.5.2/include/private -no-install -o tools/gen_test_char tools/gen_test_char.lo -lrt -lcrypt -lpthread /tmp/install/apr-1.5.2/build/mkdir.sh include/private
3,下载安装apr-util(http://apr.apache.org/download.cgi)
[root@Monitor install]# wget http://mirrors.cnnic.cn/apache//apr/apr-util-1.5.4.tar.gz --2017-03-02 17:23:09-- http://mirrors.cnnic.cn/apache//apr/apr-util-1.5.4.tar.gz 正在解析主机 mirrors.cnnic.cn... 218.241.113.17 正在连接 mirrors.cnnic.cn|218.241.113.17|:80... 已连接。 已发出 HTTP 请求,正在等待回应... 200 OK 长度:874044 (854K) [application/octet-stream] 正在保存至: “apr-util-1.5.4.tar.gz” 100%[===========================================================================================>] 874,044 1.68M/s in 0.5s 2017-03-02 17:23:10 (1.68 MB/s) - 已保存 “apr-util-1.5.4.tar.gz” [874044/874044]) [root@Monitor install]# tar xf apr-util-1.5.4.tar.gz [root@Monitor install]# cd apr-util-1.5.4 [root@Monitor apr-util-1.5.4]# ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr/ [root@Monitor apr-util-1.5.4]# make && make install make[1]: Entering directory `/tmp/install/apr-util-1.5.4' /bin/sh /usr/local/apr/build-1/libtool --silent --mode=compile gcc -g -O2 -pthread -DHAVE_CONFIG_H -DLINUX -D_REENTRANT -D_GNU_SOURCE -I/tmp/install/apr-util-1.5.4/include -I/tmp/install/apr-util-1.5.4/include/private -I/usr/local/apr/include/apr-1 -o buckets/apr_brigade.lo -c buckets/apr_brigade.c && touch buckets/apr_brigade.lo If you ever happen to want to link against installed libraries in a given directory, LIBDIR, you must either use libtool, and specify the full pathname of the library, or use the `-LLIBDIR' flag during linking and do at least one of the following: - add LIBDIR to the `LD_LIBRARY_PATH' environment variable during execution - add LIBDIR to the `LD_RUN_PATH' environment variable during linking - use the `-Wl,-rpath -Wl,LIBDIR' linker flag - have your system administrator add LIBDIR to `/etc/ld.so.conf' See any operating system documentation about shared libraries for more information, such as the ld(1) and ld.so(8) manual pages. ---------------------------------------------------------------------- /usr/bin/install -c -m 644 aprutil.exp /usr/local/apr-util/lib /usr/bin/install -c -m 755 apu-config.out /usr/local/apr-util/bin/apu-1-config [root@Monitor apr-util-1.5.4]# ll /usr/local/apr-util/ 总用量 12 drwxr-xr-x 2 root root 4096 3月 2 17:24 bin drwxr-xr-x 3 root root 4096 3月 2 17:24 include drwxr-xr-x 3 root root 4096 3月 2 17:24 lib
3,安装tomcat-native。
方法一:源码安装,不过安装过程中会有一些依赖,特别麻烦,我上次在这个问题上一直有报错,浪费掉一两天的时间才解决。一般tomcat的/bin/下都会有这个安装文件。
[root@Monitor bin]# cd /usr/local/apache-tomcat-7.0.63/bin [root@Monitor bin]# ls bootstrap.jar commons-daemon.jar daemon.sh setclasspath.sh startup.sh tool-wrapper.bat catalina.bat commons-daemon-native.tar.gz digest.bat shutdown.bat tomcat-juli.jar tool-wrapper.sh catalina.sh configtest.bat digest.sh shutdown.sh tomcat-native-1.1.33-src version.bat catalina-tasks.xml configtest.sh setclasspath.bat startup.bat tomcat-native.tar.gz version.sh [root@Monitor bin]# tar xf tomcat-native.tar.gz [root@Monitor bin]# cd tomcat-native-1.1.33-src/jni/native/ [root@Monitor native]# ./configure --with-apr=/usr/local/apr/bin/apr-1-config --with-java-home=/usr/java/jdk1.7.0_79/ [root@Monitor native]# make && make install最后添加环境变量
[root@ittestserver1 native]# vim /etc/profile export LD_LIBRARY_PATH=/usr/local/apr/lib [root@ittestserver1 native]# source /etc/profile
方法二:使用yum安装,方便快捷省时省力比较推荐。
[root@ittestserver1]# yum list|grep tomcat-native [root@ittestserver1 lib]# yum install tomcat-native -y Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.163.com * epel: mirror01.idc.hinet.net * extras: mirrors.163.com * updates: mirrors.cn99.com Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package tomcat-native.x86_64 0:1.1.34-1.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================================== Package Arch Version Repository Size ===================================================================================================================================== Installing: tomcat-native x86_64 1.1.34-1.el6 epel 60 k Transaction Summary ===================================================================================================================================== Install 1 Package(s) Total download size: 60 k Installed size: 165 k Downloading Packages: tomcat-native-1.1.34-1.el6.x86_64.rpm | 60 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : tomcat-native-1.1.34-1.el6.x86_64 1/1 /sbin/ldconfig: /usr/lib/libtcnative-1.so.0 不是符号连接 Verifying : tomcat-native-1.1.34-1.el6.x86_64 1/1 Installed: tomcat-native.x86_64 0:1.1.34-1.el6 Complete! [root@ittestserver1 lib]# rpm -qa|grep tomcat-native tomcat-native-1.1.34-1.el6.x86_64 unset i unset -f pathmunge 配置相关的全局变量: 方法一:修改/etc/profie文件 [root@ittestserver1 lib]# vim /etc/profile export LD_LIBRARY_PATH=/usr/local/apr/lib [root@ittestserver1 lib]# source /etc/profile 方法二:编辑$TOMCAT_HOME/bin/catalina.sh文件,在虚拟机启动参数JAVA_OPTS中添加 java.library.path参数,指定apr库的路径 [root@Monitor xn1]# vim /usr/local/tomcat_thirdmanage/bin/catalina.sh JAVA_OPTS="$JAVA_OPTS -Djava.library.path=/usr/local/apr/lib" tomcat8以下版本,需要指定运行模式最后启动下tomcat,查看日志为启用了apr模式将protocol从HTTP/1.1改成org.apache.coyote.http11.Http11AprProtocol
查看启动日志,即为完成。
(三)tomcat优化
(1)优化连接池
[root@Monitor local]# vim /usr/local/apache-tomcat-7.0.63/conf/server.xml
放开连接池: <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" maxThreads="150" minSpareThreads="20" maxSpareThreads="50"/> 优化连接端口: <Connector port="8080" executor="tomcatThreadPool" protocol="org.apache.coyote.http11.Http11AprProtocol" URIEncoding="UTF-8" connectionTimeout="20000" enableLookups="false" disableUploadTimeout="false" connectionUploadTimeout="150000" acceptCount="300" redirectPort="8443" />(2)修改catalina.sh防止内存溢出。
[root@ittestserver1 opt]# vim /usr/local/tomcat/bin/catalina.sh # ----------------------------------------------------------------------------- JAVA_OPTS="-server -Xms8192m -Xmx8192m -Xss512k -XX:PermSize=1024m -XX:MaxNewSize=2048m -XX:MaxNewSize=2048m -XX:MaxPermSize=1024m -XX:+DisableExplicitGC -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:+UseFastAccessorMethods -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Dsun.jnu.encoding=UTF-8"
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