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我的優(yōu)化配置:
JAVA_OPTS="-Xms16384m -Xmx16384m -Xloggc:/home/soft/8080_gc.log -Xss256k -Xmn6144m -XX:PermSize=1024m -XX:MaxPermSize=1024m -XX:SurvivorRatio=6 -XX:MaxTenuringThreshold=7 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:CMSFullGCsBeforeCompaction=0 -XX:+UseCMSCompactAtFullCollection -XX:CMSInitiatingOccupancyFraction=60 -XX:+CMSClassUnloadingEnabled -XX:SoftRefLRUPolicyMSPerMB=0 -XX:TargetSurvivorRatio=90 -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGC"
Tomcat 優(yōu)化分為系統(tǒng)優(yōu)化,Java虛擬機(jī)調(diào)優(yōu),Tomcat本身的優(yōu)化。
調(diào)整tomcat的占用內(nèi)存
1.編輯catalina.sh文件
vim catalina.sh
2. 查找到tomcat內(nèi)存參數(shù)一行:/ JAVA_OPTS (如果找不到則在第一行寫(xiě)上)
3. 將JAVA_OPTS="-Xms 1024m –Xmx 1520m" 一行的兩個(gè)參數(shù)依據(jù)服務(wù)器實(shí)際內(nèi)存數(shù)量分別進(jìn)行更改:
- Xms為tomcat啟動(dòng)初始內(nèi)存,一般為服務(wù)器開(kāi)機(jī)后可用空閑內(nèi)存減去100M
- Xmx為tomcat最大占用內(nèi)存,一般為服務(wù)器開(kāi)機(jī)后可用空閑內(nèi)存減去50M
一般應(yīng)該使用物理內(nèi)存的 80% 作為堆大小。
以上兩個(gè)參數(shù)關(guān)系到tomcat承受的訪問(wèn)性能,要根據(jù)服務(wù)器實(shí)際內(nèi)存情況設(shè)定。
Xms和Xmx的值取成一樣比較好,可以加快內(nèi)存回收速度,會(huì)常GC
值的大小一般根據(jù)需要進(jìn)行配置。初始化堆的大小執(zhí)行了虛擬機(jī)在啟動(dòng)時(shí)向系統(tǒng)申請(qǐng)的內(nèi)存的大小。一般而言,這個(gè)參數(shù)不重要。但是有的應(yīng)用程式在大負(fù)載的情況下會(huì)急劇地占用更多的內(nèi)存,此時(shí)這個(gè)參數(shù)就是顯得很重要,假如虛擬機(jī)啟動(dòng)時(shí)配置使用的內(nèi)存比較小而在這種情況下有許多對(duì)象進(jìn)行初始化,虛擬機(jī)就必須重復(fù)地增加內(nèi)存來(lái)滿足使用。由于這種原因,我們一般把-Xms和-Xmx設(shè)為相同大,而堆的最大值受限于系統(tǒng)使用的物理內(nèi)存。一般使用數(shù)據(jù)量較大的應(yīng)用程式會(huì)使用持久對(duì)象,內(nèi)存使用有可能迅速地增長(zhǎng)。當(dāng)應(yīng)用程式需要的內(nèi)存超出堆的最大值時(shí)虛擬機(jī)就會(huì)提示內(nèi)存溢出,并且導(dǎo)致應(yīng)用服務(wù)崩潰。因此一般建議堆的最大值配置為可用內(nèi)存的最大值的80%。
Tomcat默認(rèn)能夠使用的內(nèi)存為128MB,在實(shí)際生產(chǎn)中,這點(diǎn)內(nèi)存通常是不足的,需要大些
在/bin/catalina.sh中,增加如下配置:
JAVA_OPTS='-Xms[初始化內(nèi)存大小] -Xmx[能夠使用的最大內(nèi)存]'
需要時(shí),把這個(gè)兩個(gè)參數(shù)值調(diào)大。例如:
JAVA_OPTS='-Xms256m -Xmx512m'
表示初始化內(nèi)存為256MB,能夠使用的最大內(nèi)存為512MB。
要考慮的是Java提供的垃圾回收機(jī)制。虛擬機(jī)的堆大小決定了虛擬機(jī)花費(fèi)在收集垃圾上的時(shí)間和頻度。收集垃圾能夠接受的速度和應(yīng)用有關(guān),應(yīng)該通過(guò)分析實(shí)際的垃圾收集的時(shí)間和頻率來(lái)調(diào)整。假如堆的大小很大,那么完全垃圾收集就會(huì)很慢,但是頻度會(huì)降低。假如您把堆的大小和內(nèi)存的需要一致,完全收集就很快,但是會(huì)更加頻繁。調(diào)整堆大小的的目的是最小化垃圾收集的時(shí)間,以在特定的時(shí)間內(nèi)最大化處理客戶的請(qǐng)求。在基準(zhǔn)測(cè)試的時(shí)候,為確保最好的性能,要把堆的大小設(shè)大,確保垃圾收集不在整個(gè)基準(zhǔn)測(cè)試的過(guò)程中出現(xiàn)。
假如系統(tǒng)花費(fèi)很多的時(shí)間收集垃圾,請(qǐng)減小堆大小。一次完全的垃圾收集應(yīng)該不超過(guò) 3-5 秒。假如垃圾收集成為瓶頸,那么需要指定代的大小,檢查垃圾收集的周詳輸出,研究 垃圾收集參數(shù)對(duì)性能的影響。一般說(shuō)來(lái),您應(yīng)該使用物理內(nèi)存的 80% 作為堆大小。當(dāng)增加處理器時(shí),記得增加內(nèi)存,因?yàn)榉峙淠軌虿⑿羞M(jìn)行,而垃圾收集不是并行的。
調(diào)整tomcat的線程參數(shù)
編輯server.xml文件
在tomcat配置文件server.xml中的<Connector />配置中,和連接數(shù)相關(guān)的參數(shù)有:
maxThreads="150",表示最多同時(shí)處理150個(gè)連接,Tomcat使用線程來(lái)處理接收的每個(gè)請(qǐng)求。這個(gè)值表示Tomcat可創(chuàng)建的最大的線程數(shù)。默認(rèn)值200。
minSpareThreads="25",表示即使沒(méi)有人使用也開(kāi)這么多空線程等待
maxSpareThreads="75",表示如果最多可以空75個(gè)線程,例如某時(shí)刻有80人訪問(wèn),之后沒(méi)有人訪問(wèn)了,則tomcat不會(huì)保留80個(gè)空線程,而是關(guān)閉5個(gè)空的。 (一旦創(chuàng)建的線程超過(guò)這個(gè)值,Tomcat就會(huì)關(guān)閉不再需要的socket線程。默認(rèn)值50)
acceptCount="100",當(dāng)同時(shí)連接的人數(shù)達(dá)到maxThreads時(shí),還可以接收排隊(duì)的連接數(shù)量,超過(guò)這個(gè)連接的則直接返回拒絕連接。(指定當(dāng)任何能夠使用的處理請(qǐng)求的線程數(shù)都被使用時(shí),能夠放到處理隊(duì)列中的請(qǐng)求數(shù),超過(guò)這個(gè)數(shù)的請(qǐng)求將不予處理。默認(rèn)值100)
其中和最大連接數(shù)相關(guān)的參數(shù)為maxThreads和acceptCount。如果要加大并發(fā)連接數(shù),應(yīng)同時(shí)加大這兩個(gè)參數(shù)。
web server允許的最大連接數(shù)還受制于操作系統(tǒng)的內(nèi)核參數(shù)設(shè)置,通常Windows是2000個(gè)左右,Linux是1000個(gè)左右。tomcat5中的配置示例:
<Connector port="8080"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
acceptCount="100"/>
主要是調(diào)整maxThreads 和acceptCount的值
在tomcat配置文檔server.xml中的配置中,和連接數(shù)相關(guān)的其他參數(shù)有:
enableLookups 是否反查域名,默認(rèn)值為true。為了提高處理能力,應(yīng)配置為false
connnectionTimeout 網(wǎng)絡(luò)連接超時(shí),默認(rèn)值60000,單位:毫秒。配置為0表示永不超時(shí),這樣配置有隱患的。通常可配置為30000毫秒。
maxKeepAliveRequests nginx動(dòng)態(tài)的轉(zhuǎn)給tomcat,nginx是不能keepalive的,而tomcat端默認(rèn)開(kāi)啟了keepalive,會(huì)等待keepalive的timeout,默認(rèn)不設(shè)置就是使用connectionTimeout。
所以必須設(shè)置tomcat的超時(shí)時(shí)間,并關(guān)閉tomcat的keepalive。否則會(huì)產(chǎn)生大量tomcat的socket timewait。
maxKeepAliveRequests="1"就可以避免tomcat產(chǎn)生大量的TIME_WAIT連接,從而從一定程度上避免tomcat假死。
設(shè)置tomcat/conf/server.xml:
maxKeepAliveRequests="1"
connectionTimeout="20000"
maxKeepAliveRequests="1" ##表示每個(gè)連接只響應(yīng)一次就關(guān)閉,這樣就不會(huì)等待timeout了
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="30000" maxKeepAliveRequests="1"
redirectPort="8443" bufferSize="8192" sockedBuffer="65536" acceptCount="200"/>
bufferSize 輸入流緩沖大小,默認(rèn)值2048 bytes。
compression 壓縮傳輸,取值on/off/force,默認(rèn)值off
貼上我的配置文件:
CATALINA_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=12345 -Djava.rmi.server.hostname=10.1.2.131" JAVA_OPTS="-Xms16384m -Xmx16384m -Xloggc:/home/soft/8080_gc.log -Xss256k -Xmn6144m -XX:PermSize=1024m -XX:MaxPermSize=1024m -XX:SurvivorRatio=6 -XX:MaxTenuringThreshold=7 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:CMSFullGCsBeforeCompaction=0 -XX:+UseCMSCompactAtFullCollection -XX:CMSInitiatingOccupancyFraction=60 -XX:+CMSClassUnloadingEnabled -XX:SoftRefLRUPolicyMSPerMB=0 -XX:TargetSurvivorRatio=90 -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGC" #JAVA_OPTS="-Xms4096m -Xmx16384m -XX:MaxPermSize=1024m" # OS specific support. $var _must_ be set to either true or false. cygwin=false darwin=false os400=false case "`uname`" in CYGWIN*) cygwin=true;; Darwin*) darwin=true;; OS400*) os400=true;; esac # resolve links - $0 may be a softlink PRG="$0" while [ -h "$PRG" ]; do ls=`ls -ld "$PRG"` link=`expr "$ls" : '.*-> \(.*\)$'` if expr "$link" : '/.*' > /dev/null; then PRG="$link" else PRG=`dirname "$PRG"`/"$link" fi done # Get standard environment variables PRGDIR=`dirname "$PRG"` # Only set CATALINA_HOME if not already set [ -z "$CATALINA_HOME" ] && CATALINA_HOME=`cd "$PRGDIR/.." >/dev/null; pwd` # Copy CATALINA_BASE from CATALINA_HOME if not already set [ -z "$CATALINA_BASE" ] && CATALINA_BASE="$CATALINA_HOME" # Ensure that neither CATALINA_HOME nor CATALINA_BASE contains a colon # as this is used as the separator in the classpath and Java provides no # mechanism for escaping if the same character appears in the path. case $CATALINA_HOME in *:*) echo "Using CATALINA_HOME: $CATALINA_HOME"; echo "Unable to start as CATALINA_HOME contains a colon (:) character"; exit 1; esac case $CATALINA_BASE in *:*) echo "Using CATALINA_BASE: $CATALINA_BASE"; echo "Unable to start as CATALINA_BASE contains a colon (:) character"; exit 1; esac # Ensure that any user defined CLASSPATH variables are not used on startup, # but allow them to be specified in setenv.sh, in rare case when it is needed. CLASSPATH= if [ -r "$CATALINA_BASE/bin/setenv.sh" ]; then . "$CATALINA_BASE/bin/setenv.sh" elif [ -r "$CATALINA_HOME/bin/setenv.sh" ]; then . "$CATALINA_HOME/bin/setenv.sh" fi # For Cygwin, ensure paths are in UNIX format before anything is touched if $cygwin; then [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` [ -n "$JRE_HOME" ] && JRE_HOME=`cygpath --unix "$JRE_HOME"` [ -n "$CATALINA_HOME" ] && CATALINA_HOME=`cygpath --unix "$CATALINA_HOME"` [ -n "$CATALINA_BASE" ] && CATALINA_BASE=`cygpath --unix "$CATALINA_BASE"` [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"` fi # For OS400 if $os400; then # Set job priority to standard for interactive (interactive - 6) by using # the interactive priority - 6, the helper threads that respond to requests # will be running at the same priority as interactive jobs. COMMAND='chgjob job('$JOBNAME') runpty(6)' system $COMMAND # Enable multi threading export QIBM_MULTI_THREADED=Y fi # Get standard Java environment variables if $os400; then # -r will Only work on the os400 if the files are: # 1. owned by the user # 2. owned by the PRIMARY group of the user # this will not work if the user belongs in secondary groups . "$CATALINA_HOME"/bin/setclasspath.sh else if [ -r "$CATALINA_HOME"/bin/setclasspath.sh ]; then . "$CATALINA_HOME"/bin/setclasspath.sh else echo "Cannot find $CATALINA_HOME/bin/setclasspath.sh" echo "This file is needed to run this program" exit 1 fi fi # Add on extra jar files to CLASSPATH if [ ! -z "$CLASSPATH" ] ; then CLASSPATH="$CLASSPATH": fi CLASSPATH="$CLASSPATH""$CATALINA_HOME"/bin/bootstrap.jar if [ -z "$CATALINA_OUT" ] ; then CATALINA_OUT="$CATALINA_BASE"/logs/catalina.out fi if [ -z "$CATALINA_TMPDIR" ] ; then # Define the java.io.tmpdir to use for Catalina CATALINA_TMPDIR="$CATALINA_BASE"/temp fi # Add tomcat-juli.jar to classpath # tomcat-juli.jar can be over-ridden per instance if [ -r "$CATALINA_BASE/bin/tomcat-juli.jar" ] ; then CLASSPATH=$CLASSPATH:$CATALINA_BASE/bin/tomcat-juli.jar else CLASSPATH=$CLASSPATH:$CATALINA_HOME/bin/tomcat-juli.jar fi # Bugzilla 37848: When no TTY is available, don't output to console have_tty=0 if [ "`tty`" != "not a tty" ]; then have_tty=1 fi # For Cygwin, switch paths to Windows format before running java if $cygwin; then JAVA_HOME=`cygpath --absolute --windows "$JAVA_HOME"` JRE_HOME=`cygpath --absolute --windows "$JRE_HOME"` CATALINA_HOME=`cygpath --absolute --windows "$CATALINA_HOME"` CATALINA_BASE=`cygpath --absolute --windows "$CATALINA_BASE"` CATALINA_TMPDIR=`cygpath --absolute --windows "$CATALINA_TMPDIR"` CLASSPATH=`cygpath --path --windows "$CLASSPATH"` JAVA_ENDORSED_DIRS=`cygpath --path --windows "$JAVA_ENDORSED_DIRS"` fi # Set juli LogManager config file if it is present and an override has not been issued if [ -z "$LOGGING_CONFIG" ]; then if [ -r "$CATALINA_BASE"/conf/logging.properties ]; then LOGGING_CONFIG="-Djava.util.logging.config.file=$CATALINA_BASE/conf/logging.properties" else # Bugzilla 45585 LOGGING_CONFIG="-Dnop" fi fi if [ -z "$LOGGING_MANAGER" ]; then LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager" fi # Uncomment the following line to make the umask available when using the # org.apache.catalina.security.SecurityListener #JAVA_OPTS="$JAVA_OPTS -Dorg.apache.catalina.security.SecurityListener.UMASK=`umask`" # ----- Execute The Requested Command ----------------------------------------- # Bugzilla 37848: only output this if we have a TTY if [ $have_tty -eq 1 ]; then echo "Using CATALINA_BASE: $CATALINA_BASE" echo "Using CATALINA_HOME: $CATALINA_HOME" echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR" if [ "$1" = "debug" ] ; then echo "Using JAVA_HOME: $JAVA_HOME" else echo "Using JRE_HOME: $JRE_HOME" fi echo "Using CLASSPATH: $CLASSPATH" if [ ! -z "$CATALINA_PID" ]; then echo "Using CATALINA_PID: $CATALINA_PID" fi fi if [ "$1" = "jpda" ] ; then if [ -z "$JPDA_TRANSPORT" ]; then JPDA_TRANSPORT="dt_socket" fi if [ -z "$JPDA_ADDRESS" ]; then JPDA_ADDRESS="localhost:8000" fi if [ -z "$JPDA_SUSPEND" ]; then JPDA_SUSPEND="n" fi if [ -z "$JPDA_OPTS" ]; then JPDA_OPTS="-agentlib:jdwp=transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=$JPDA_SUSPEND" fi CATALINA_OPTS="$JPDA_OPTS $CATALINA_OPTS" shift fi if [ "$1" = "debug" ] ; then if $os400; then echo "Debug command not available on OS400" exit 1 else shift if [ "$1" = "-security" ] ; then if [ $have_tty -eq 1 ]; then echo "Using Security Manager" fi shift exec "$_RUNJDB" "$LOGGING_CONFIG" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -sourcepath "$CATALINA_HOME"/../../java \ -Djava.security.manager \ -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" start else exec "$_RUNJDB" "$LOGGING_CONFIG" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -sourcepath "$CATALINA_HOME"/../../java \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" start fi fi elif [ "$1" = "run" ]; then shift if [ "$1" = "-security" ] ; then if [ $have_tty -eq 1 ]; then echo "Using Security Manager" fi shift eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \ -Djava.security.manager \ -Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \ -Dcatalina.base="\"$CATALINA_BASE\"" \ -Dcatalina.home="\"$CATALINA_HOME\"" \ -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \ org.apache.catalina.startup.Bootstrap "$@" start else eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \ -Dcatalina.base="\"$CATALINA_BASE\"" \ -Dcatalina.home="\"$CATALINA_HOME\"" \ -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \ org.apache.catalina.startup.Bootstrap "$@" start fi elif [ "$1" = "start" ] ; then if [ ! -z "$CATALINA_PID" ]; then if [ -f "$CATALINA_PID" ]; then if [ -s "$CATALINA_PID" ]; then echo "Existing PID file found during start." if [ -r "$CATALINA_PID" ]; then PID=`cat "$CATALINA_PID"` ps -p $PID >/dev/null 2>&1 if [ $? -eq 0 ] ; then echo "Tomcat appears to still be running with PID $PID. Start aborted." echo "If the following process is not a Tomcat process, remove the PID file and try again:" ps -f -p $PID exit 1 else echo "Removing/clearing stale PID file." rm -f "$CATALINA_PID" >/dev/null 2>&1 if [ $? != 0 ]; then if [ -w "$CATALINA_PID" ]; then cat /dev/null > "$CATALINA_PID" else echo "Unable to remove or clear stale PID file. Start aborted." exit 1 fi fi fi else echo "Unable to read PID file. Start aborted." exit 1 fi else rm -f "$CATALINA_PID" >/dev/null 2>&1 if [ $? != 0 ]; then if [ ! -w "$CATALINA_PID" ]; then echo "Unable to remove or write to empty PID file. Start aborted." exit 1 fi fi fi fi fi shift touch "$CATALINA_OUT" if [ "$1" = "-security" ] ; then if [ $have_tty -eq 1 ]; then echo "Using Security Manager" fi shift eval "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \ -Djava.security.manager \ -Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \ -Dcatalina.base="\"$CATALINA_BASE\"" \ -Dcatalina.home="\"$CATALINA_HOME\"" \ -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \ org.apache.catalina.startup.Bootstrap "$@" start \ >> "$CATALINA_OUT" 2>&1 "&" else eval "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \ -Dcatalina.base="\"$CATALINA_BASE\"" \ -Dcatalina.home="\"$CATALINA_HOME\"" \ -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \ org.apache.catalina.startup.Bootstrap "$@" start \ >> "$CATALINA_OUT" 2>&1 "&" fi if [ ! -z "$CATALINA_PID" ]; then echo $! > "$CATALINA_PID" fi echo "Tomcat started." elif [ "$1" = "stop" ] ; then shift SLEEP=5 if [ ! -z "$1" ]; then echo $1 | grep "[^0-9]" >/dev/null 2>&1 if [ $? -gt 0 ]; then SLEEP=$1 shift fi fi FORCE=0 if [ "$1" = "-force" ]; then shift FORCE=1 fi if [ ! -z "$CATALINA_PID" ]; then if [ -f "$CATALINA_PID" ]; then if [ -s "$CATALINA_PID" ]; then kill -0 `cat "$CATALINA_PID"` >/dev/null 2>&1 if [ $? -gt 0 ]; then echo "PID file found but no matching process was found. Stop aborted." exit 1 fi else echo "PID file is empty and has been ignored." fi else echo "\$CATALINA_PID was set but the specified file does not exist. Is Tomcat running? Stop aborted." exit 1 fi fi eval "\"$_RUNJAVA\"" $LOGGING_MANAGER $JAVA_OPTS \ -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \ -Dcatalina.base="\"$CATALINA_BASE\"" \ -Dcatalina.home="\"$CATALINA_HOME\"" \ -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \ org.apache.catalina.startup.Bootstrap "$@" stop # stop failed. Shutdown port disabled? Try a normal kill. if [ $? != 0 ]; then if [ ! -z "$CATALINA_PID" ]; then echo "The stop command failed. Attempting to signal the process to stop through OS signal." kill -15 `cat "$CATALINA_PID"` >/dev/null 2>&1 fi fi if [ ! -z "$CATALINA_PID" ]; then if [ -f "$CATALINA_PID" ]; then while [ $SLEEP -ge 0 ]; do kill -0 `cat "$CATALINA_PID"` >/dev/null 2>&1 if [ $? -gt 0 ]; then rm -f "$CATALINA_PID" >/dev/null 2>&1 if [ $? != 0 ]; then if [ -w "$CATALINA_PID" ]; then cat /dev/null > "$CATALINA_PID" # If Tomcat has stopped don't try and force a stop with an empty PID file FORCE=0 else echo "The PID file could not be removed or cleared." fi fi echo "Tomcat stopped." break fi if [ $SLEEP -gt 0 ]; then sleep 1 fi if [ $SLEEP -eq 0 ]; then echo "Tomcat did not stop in time." if [ $FORCE -eq 0 ]; then echo "PID file was not removed." fi echo "To aid diagnostics a thread dump has been written to standard out." kill -3 `cat "$CATALINA_PID"` fi SLEEP=`expr $SLEEP - 1 ` done fi fi KILL_SLEEP_INTERVAL=5 if [ $FORCE -eq 1 ]; then if [ -z "$CATALINA_PID" ]; then echo "Kill failed: \$CATALINA_PID not set" else if [ -f "$CATALINA_PID" ]; then PID=`cat "$CATALINA_PID"` echo "Killing Tomcat with the PID: $PID" kill -9 $PID while [ $KILL_SLEEP_INTERVAL -ge 0 ]; do kill -0 `cat "$CATALINA_PID"` >/dev/null 2>&1 if [ $? -gt 0 ]; then rm -f "$CATALINA_PID" >/dev/null 2>&1 if [ $? != 0 ]; then if [ -w "$CATALINA_PID" ]; then cat /dev/null > "$CATALINA_PID" else echo "The PID file could not be removed." fi fi echo "The Tomcat process has been killed." break fi if [ $KILL_SLEEP_INTERVAL -gt 0 ]; then sleep 1 fi KILL_SLEEP_INTERVAL=`expr $KILL_SLEEP_INTERVAL - 1 ` done if [ $KILL_SLEEP_INTERVAL -lt 0 ]; then echo "Tomcat has not been killed completely yet. The process might be waiting on some system call or might be UNINTERRUPTIBLE." fi fi fi fi elif [ "$1" = "configtest" ] ; then eval "\"$_RUNJAVA\"" $LOGGING_MANAGER $JAVA_OPTS \ -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \ -Dcatalina.base="\"$CATALINA_BASE\"" \ -Dcatalina.home="\"$CATALINA_HOME\"" \ -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \ org.apache.catalina.startup.Bootstrap configtest result=$? if [ $result -ne 0 ]; then echo "Configuration error detected!" fi exit $result elif [ "$1" = "version" ] ; then "$_RUNJAVA" \ -classpath "$CATALINA_HOME/lib/catalina.jar" \ org.apache.catalina.util.ServerInfo else echo "Usage: catalina.sh ( commands ... )" echo "commands:" if $os400; then echo " debug Start Catalina in a debugger (not available on OS400)" echo " debug -security Debug Catalina with a security manager (not available on OS400)" else echo " debug Start Catalina in a debugger" echo " debug -security Debug Catalina with a security manager" fi echo " jpda start Start Catalina under JPDA debugger" echo " run Start Catalina in the current window" echo " run -security Start in the current window with security manager" echo " start Start Catalina in a separate window" echo " start -security Start in a separate window with security manager" echo " stop Stop Catalina, waiting up to 5 seconds for the process to end" echo " stop n Stop Catalina, waiting up to n seconds for the process to end" echo " stop -force Stop Catalina, wait up to 5 seconds and then use kill -KILL if still running" echo " stop n -force Stop Catalina, wait up to n seconds and then use kill -KILL if still running" echo " configtest Run a basic syntax check on server.xml - check exit code for result" echo " version What version of tomcat are you running?" echo "Note: Waiting for the process to end and use of the -force option require that \$CATALINA_PID is defined" exit 1 fi
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