1.脚本权限是java进程的用户和用户组
2.使用show-cpu这个脚本是后边带上进程号
(重要)linux分析java应用

show-busy-java-threads.sh

#!/bin/bash
# @Function
# Find out the highest cpu consumed threads of java, and print the stack of these threads.
#
# @Usage
#   $ ./show-busy-java-threads.sh
#
# @author Jerry Lee

readonly PROG=`basename $0`

usage() {
    cat <<EOF
Usage: ${PROG} [OPTION]...
Find out the highest cpu consumed threads of java, and print the stack of these threads.
Example: ${PROG} -c 10
Options:
    -p, --pid       find out the highest cpu consumed threads from the specifed java process,
                    default from all java process.
    -c, --count     set the thread count to show, default is 5
    -h, --help      display this help and exit
EOF
    exit $1
}

readonly ARGS=`getopt -n "$PROG" -a -o c:p:h -l count:,pid:,help -- "$@"`
[ $? -ne 0 ] && usage 1
eval set -- "${ARGS}"

while true; do
    case "$1" in
    -c|--count)
        count="$2"
        shift 2
        ;;
    -p|--pid)
        pid="$2"
        shift 2
        ;;
    -h|--help)
        usage
        ;;
    --)
        shift
        break
        ;;
    esac
done
count=${count:-5}

redEcho() {
    [ -c /dev/stdout ] && {
        # if stdout is console, turn on color output.
        echo -ne "\033[1;31m"
        echo -n "$@"
        echo -e "\033[0m"
    } || echo "$@"
}

# Check the existence of jstack command!
if ! which jstack &> /dev/null; then
    [ -z "$JAVA_HOME" ] && {
        redEcho "Error: jstack not found on PATH!"
        exit 1
    }
    ! [ -f "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack file does NOT exists!"
        exit 1
    }
    ! [ -x "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack is NOT executalbe!"
        exit 1
    }
    export PATH="$JAVA_HOME/bin:$PATH"
fi

readonly uuid=`date +%s`_${RANDOM}_$$

cleanupWhenExit() {
    rm /tmp/${uuid}_* &> /dev/null
}
trap "cleanupWhenExit" EXIT

printStackOfThread() {
    local threadLine
    local count=1
    while read threadLine ; do
        local pid=`echo ${threadLine} | awk '{print $1}'`
        local threadId=`echo ${threadLine} | awk '{print $2}'`
        local threadId0x=`printf %x ${threadId}`
        local user=`echo ${threadLine} | awk '{print $3}'`
        local pcpu=`echo ${threadLine} | awk '{print $5}'`

        local jstackFile=/tmp/${uuid}_${pid}

        [ ! -f "${jstackFile}" ] && {
            jstack ${pid} > ${jstackFile} || {
                redEcho "Fail to jstack java process ${pid}!"
                rm ${jstackFile}
                continue
            }
        }

        redEcho "[$((count++))] Busy(${pcpu}%) thread(${threadId}/0x${threadId0x}) stack of java process(${pid}) under user(${user}):"
        sed "/nid=0x${threadId0x} /,/^$/p" -n ${jstackFile}
    done
}

ps -Leo pid,lwp,user,comm,pcpu --no-headers | {
    [ -z "${pid}" ] &&
    awk '$4=="java"{print $0}' ||
    awk -v "pid=${pid}" '$1==pid,$4=="java"{print $0}'
} | sort -k5 -r -n | head --lines "${count}" | printStackOfThread

show-busy-java-threads-172.sh

#!/bin/bash
# @Function
# Find out the highest cpu consumed threads of java, and print the stack of these threads.
#
# @Usage
#   $ ./show-busy-java-threads.sh
#
# @author Jerry Lee

readonly PROG=`basename $0`

usage() {
    cat <<EOF
Usage: ${PROG} [OPTION]...
Find out the highest cpu consumed threads of java, and print the stack of these threads.
Example: ${PROG} -c 10
Options:
    -p, --pid       find out the highest cpu consumed threads from the specifed java process,
                    default from all java process.
    -c, --count     set the thread count to show, default is 5
    -h, --help      display this help and exit
EOF
    exit $1
}

readonly ARGS=`getopt -n "$PROG" -a -o c:p:h -l count:,pid:,help -- "$@"`
[ $? -ne 0 ] && usage 1
eval set -- "${ARGS}"

while true; do
    case "$1" in
    -c|--count)
        count="$2"
        shift 2
        ;;
    -p|--pid)
        pid="$2"
        shift 2
        ;;
    -h|--help)
        usage
        ;;
    --)
        shift
        break
        ;;
    esac
done
count=${count:-5}

redEcho() {
    [ -c /dev/stdout ] && {
        # if stdout is console, turn on color output.
        echo -ne "\033[1;31m"
        echo -n "$@"
        echo -e "\033[0m"
    } || echo "$@"
}

# Check the existence of jstack command!
if ! which jstack &> /dev/null; then
    [ -z "$JAVA_HOME" ] && {
        redEcho "Error: jstack not found on PATH!"
        exit 1
    }
    ! [ -f "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack file does NOT exists!"
        exit 1
    }
    ! [ -x "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack is NOT executalbe!"
        exit 1
    }
    export PATH="$JAVA_HOME/bin:$PATH"
fi

readonly uuid=`date +%s`_${RANDOM}_$$

cleanupWhenExit() {
    rm /tmp/${uuid}_* &> /dev/null
}
#trap "cleanupWhenExit" EXIT

printStackOfThread() {
    local name=`date +%s`
    local threadLine
    local count=1
    while read threadLine ; do
        local pid=`echo ${threadLine} | awk '{print $1}'`
        local threadId=`echo ${threadLine} | awk '{print $2}'`
        local threadId0x=`printf %x ${threadId}`
        local user=`echo ${threadLine} | awk '{print $3}'`
        local pcpu=`echo ${threadLine} | awk '{print $5}'`

        local jstackFile=/opt/web-config/app/threads/45_${name}_${pid}.txt

        [ ! -f "${jstackFile}" ] && {
            jstack ${pid} > ${jstackFile} || {
                redEcho "Fail to jstack java process ${pid}!"
                rm ${jstackFile}
                continue
            }
        }

        redEcho "[$((count++))] Busy(${pcpu}%) thread(${threadId}/0x${threadId0x}) stack of java process(${pid}) under user(${user}):"
        sed "/nid=0x${threadId0x} /,/^$/p" -n ${jstackFile}
    done
}
name=`date +%s`
ps -Leo pid,lwp,user,comm,pcpu --no-headers | {
    [ -z "${pid}" ] &&
    awk '$4=="java"{print $0}' ||
    awk -v "pid=${pid}" '$1==pid,$4=="java"{print $0}'
} | sort -k5 -r -n | head --lines "${count}" | printStackOfThread >> /opt/web-config/app/threads/45_cpu_top5_threads_${name}.txt 






#readonly name=`date +%s`
#ps -Leo pid,lwp,user,comm,pcpu --no-headers | {
#    [ -z "${pid}" ] &&
#    awk '$4=="java"{print $0}' ||
#    awk -v "pid=${pid}" '$1==pid,$4=="java"{print $0}'
#} | sort -k5 -r -n | head --lines "${count}" >>/opt/web-config/app/threads/${name}_${RANDOM}.txt

show-cpu-java-tid.sh

<#!/bin/bash

if [ $# -eq 0 ];then
  echo "please enter java pid"
  exit -1
fi

pid=$1
jstack_cmd=""

if [[ $JAVA_HOME != "" ]]; then
  jstack_cmd="$JAVA_HOME/bin/jstack"
else
  r=`which jstack 2>/dev/null`
  if [[ $r != "" ]]; then
    jstack_cmd=$r
  else
    echo "can not find jstack"
    exit -2
  fi
fi

#line=`top -H  -o %CPU -b -n 1  -p $pid | sed '1,/^$/d' | grep -v $pid | awk 'NR==2'`

line=`top -H -b -n 1  -p $pid | sed '1,/^$/d' | sed '1d;/^$/d' | grep -v $pid | sort -nrk9 | head -1`
echo "$line" | awk '{print "tid: "$1," cpu: %"$9}'
tid_0x=`printf "%0x" $(echo "$line" | awk '{print $1}')`
$jstack_cmd $pid | grep $tid_0x -A20 | sed -n '1,/^$/p'>

show-membusy-java-threads.sh

#!/bin/bash
# @Function
# Find out the highest cpu consumed threads of java, and print the stack of these threads.
#
# @Usage
#   $ ./show-busy-java-threads.sh
#
# @author Jerry Lee

readonly PROG=`basename $0`

usage() {
    cat <<EOF
Usage: ${PROG} [OPTION]...
Find out the highest cpu consumed threads of java, and print the stack of these threads.
Example: ${PROG} -c 10
Options:
    -p, --pid       find out the highest cpu consumed threads from the specifed java process,
                    default from all java process.
    -c, --count     set the thread count to show, default is 5
    -h, --help      display this help and exit
EOF
    exit $1
}

readonly ARGS=`getopt -n "$PROG" -a -o c:p:h -l count:,pid:,help -- "$@"`
[ $? -ne 0 ] && usage 1
eval set -- "${ARGS}"

while true; do
    case "$1" in
    -c|--count)
        count="$2"
        shift 2
        ;;
    -p|--pid)
        pid="$2"
        shift 2
        ;;
    -h|--help)
        usage
        ;;
    --)
        shift
        break
        ;;
    esac
done
count=${count:-5}

redEcho() {
    [ -c /dev/stdout ] && {
        # if stdout is console, turn on color output.
        echo -ne "\033[1;31m"
        echo -n "$@"
        echo -e "\033[0m"
    } || echo "$@"
}

# Check the existence of jstack command!
if ! which jstack &> /dev/null; then
    [ -z "$JAVA_HOME" ] && {
        redEcho "Error: jstack not found on PATH!"
        exit 1
    }
    ! [ -f "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack file does NOT exists!"
        exit 1
    }
    ! [ -x "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack is NOT executalbe!"
        exit 1
    }
    export PATH="$JAVA_HOME/bin:$PATH"
fi

readonly uuid=`date +%s`_${RANDOM}_$$

cleanupWhenExit() {
    rm /tmp/${uuid}_* &> /dev/null
}
trap "cleanupWhenExit" EXIT

printStackOfThread() {
    local threadLine
    local count=1
    while read threadLine ; do
        local pid=`echo ${threadLine} | awk '{print $1}'`
        local threadId=`echo ${threadLine} | awk '{print $2}'`
        local threadId0x=`printf %x ${threadId}`
        local user=`echo ${threadLine} | awk '{print $3}'`
        local pmem=`echo ${threadLine} | awk '{print $5}'`

        local jstackFile=/tmp/${uuid}_${pid}

        [ ! -f "${jstackFile}" ] && {
            jstack ${pid} > ${jstackFile} || {
                redEcho "Fail to jstack java process ${pid}!"
                rm ${jstackFile}
                continue
            }
        }

        redEcho "[$((count++))] Busy(${pmem}%) thread(${threadId}/0x${threadId0x}) stack of java process(${pid}) under user(${user}):"
        sed "/nid=0x${threadId0x} /,/^$/p" -n ${jstackFile}
    done
}
readonly name=`date +%s`
ps -Leo pid,lwp,user,comm,pmem --no-headers | {
    [ -z "${pid}" ] &&
    awk '$4=="java"{print $0}' ||
    awk -v "pid=${pid}" '$1==pid,$4=="java"{print $0}'
} | sort -k5 -r -n | head --lines "${count}" | printStackOfThread >> /opt/web-config/app/threads/45_mem_top5_threads_${name}.txt

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