mirror of
https://github.com/rvalitov/zabbix-php-fpm.git
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[fix] #35 analyze all pools
This commit is contained in:
Ramil Valitov
parent
27d55ad811
commit
9aae10855b
@ -7,6 +7,7 @@ S_PS=$(type -P ps)
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S_GREP=$(type -P grep)
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S_AWK=$(type -P awk)
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S_SORT=$(type -P sort)
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S_UNIQ=$(type -P uniq)
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S_HEAD=$(type -P head)
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S_LSOF=$(type -P lsof)
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S_JQ=$(type -P jq)
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@ -33,6 +34,10 @@ if [[ ! -f $S_SORT ]]; then
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${S_ECHO} "Utility 'sort' not found. Please, install it first."
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exit 1
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fi
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if [[ ! -f $S_UNIQ ]]; then
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${S_ECHO} "Utility 'uniq' not found. Please, install it first."
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exit 1
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fi
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if [[ ! -f $S_HEAD ]]; then
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${S_ECHO} "Utility 'head' not found. Please, install it first."
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exit 1
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@ -216,14 +221,21 @@ fi
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mapfile -t PS_LIST < <($S_PS ax | $S_GREP -F "php-fpm: pool " | $S_GREP -F -v "grep")
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# shellcheck disable=SC2016
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POOL_LIST=$(${S_PRINTF} '%s\n' "${PS_LIST[@]}" | $S_AWK '{print $NF}' | $S_SORT -u)
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POOL_NAMES_LIST=$(${S_PRINTF} '%s\n' "${PS_LIST[@]}" | $S_AWK '{print $NF}' | $S_SORT -u)
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POOL_FIRST=0
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#We store the resulting JSON data for Zabbix in the following var:
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RESULT_DATA="{\"data\":["
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while IFS= read -r line; do
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# shellcheck disable=SC2016
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POOL_PID=$(${S_PRINTF} '%s\n' "${PS_LIST[@]}" | $S_GREP -F -w "php-fpm: pool $line" | $S_HEAD -1 | $S_AWK '{print $1}')
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if [[ -n $POOL_PID ]]; then
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POOL_PID_LIST=$(${S_PRINTF} '%s\n' "${PS_LIST[@]}" | $S_GREP -F -w "php-fpm: pool $line" | $S_AWK '{print $1}')
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POOL_PID_ARGS=""
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while IFS= read -r POOL_PID; do
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if [[ -n $POOL_PID ]]; then
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POOL_PID_ARGS="$POOL_PID_ARGS -p $POOL_PID"
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fi
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done <<<"$POOL_PID_LIST"
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if [[ -n $POOL_PID_ARGS ]]; then
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#We search for socket or IP address and port
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#Socket example:
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#php-fpm7. 25897 root 9u unix 0x000000006509e31f 0t0 58381847 /run/php/php7.3-fpm.sock type=STREAM
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@ -236,84 +248,83 @@ while IFS= read -r line; do
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#php-fpm7. 1203 www-data 8u IPv4 15070917 0t0 TCP localhost.localdomain:23054->localhost.localdomain:postgresql (ESTABLISHED)
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#More info at https://github.com/rvalitov/zabbix-php-fpm/issues/12
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PrintDebug "Started analysis of pool $line, PID $POOL_PID"
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PrintDebug "Started analysis of pool $line, PID(s): $POOL_PID_ARGS"
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#Extract only important information:
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#Use -P to show port number instead of port name, see https://github.com/rvalitov/zabbix-php-fpm/issues/24
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POOL_PARAMS_LIST=$($S_LSOF -P -p "$POOL_PID" 2>/dev/null | $S_GREP -w -e "unix" -e "TCP")
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#Sometimes different PHP-FPM versions may have the same names of pools, so we need to consider that.
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# It's considered that a pair of pool name and socket must be unique.
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#Sorting is required, because uniq needs it
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POOL_PARAMS_LIST=$($S_LSOF -P $POOL_PID_ARGS 2>/dev/null | $S_GREP -w -e "unix" -e "TCP" | $S_SORT -u | $S_UNIQ -f8)
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FOUND_POOL=""
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while IFS= read -r pool; do
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if [[ -n $pool ]]; then
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if [[ -z $FOUND_POOL ]]; then
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PrintDebug "Checking process: $pool"
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# shellcheck disable=SC2016
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POOL_TYPE=$(${S_ECHO} "${pool}" | $S_AWK '{print $5}')
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# shellcheck disable=SC2016
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POOL_SOCKET=$(${S_ECHO} "${pool}" | $S_AWK '{print $9}')
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if [[ -n $POOL_TYPE ]] && [[ -n $POOL_SOCKET ]]; then
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if [[ $POOL_TYPE == "unix" ]]; then
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#We have a socket here, test if it's actually a socket:
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if [[ -S $POOL_SOCKET ]]; then
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PrintDebug "Found socket $POOL_SOCKET"
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PrintDebug "Checking process: $pool"
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# shellcheck disable=SC2016
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POOL_TYPE=$(${S_ECHO} "${pool}" | $S_AWK '{print $5}')
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# shellcheck disable=SC2016
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POOL_SOCKET=$(${S_ECHO} "${pool}" | $S_AWK '{print $9}')
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if [[ -n $POOL_TYPE ]] && [[ -n $POOL_SOCKET ]]; then
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if [[ $POOL_TYPE == "unix" ]]; then
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#We have a socket here, test if it's actually a socket:
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if [[ -S $POOL_SOCKET ]]; then
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PrintDebug "Found socket $POOL_SOCKET"
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ProcessPool "${line}" "${POOL_SOCKET}"
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POOL_STATUS=$?
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if [[ ${POOL_STATUS} -gt 0 ]]; then
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FOUND_POOL="1"
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PrintDebug "Success: socket $POOL_SOCKET returned valid status data"
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EncodeToJson "${line}" "${POOL_SOCKET}"
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else
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PrintDebug "Error: socket $POOL_SOCKET didn't return valid data"
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fi
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else
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PrintDebug "Error: specified socket $POOL_SOCKET is not valid"
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fi
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elif [[ $POOL_TYPE == "IPv4" ]] || [[ $POOL_TYPE == "IPv6" ]]; then
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#We have a TCP connection here, check it:
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# shellcheck disable=SC2016
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CONNECTION_TYPE=$(${S_ECHO} "${pool}" | $S_AWK '{print $8}')
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if [[ $CONNECTION_TYPE == "TCP" ]]; then
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#The connection must have state LISTEN:
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LISTEN=$(${S_ECHO} "${pool}" | $S_GREP -F -w "(LISTEN)")
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if [[ -n $LISTEN ]]; then
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#Check and replace * to localhost if it's found. Asterisk means that the PHP listens on
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#all interfaces.
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POOL_SOCKET=$(${S_ECHO} -n "${POOL_SOCKET/*:/localhost:}")
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PrintDebug "Found TCP connection $POOL_SOCKET"
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ProcessPool "${line}" "${POOL_SOCKET}"
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POOL_STATUS=$?
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if [[ ${POOL_STATUS} -gt 0 ]]; then
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FOUND_POOL="1"
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PrintDebug "Success: socket $POOL_SOCKET returned valid status data"
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PrintDebug "Success: TCP connection $POOL_SOCKET returned valid status data"
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EncodeToJson "${line}" "${POOL_SOCKET}"
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else
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PrintDebug "Error: socket $POOL_SOCKET didn't return valid data"
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PrintDebug "Error: TCP connection $POOL_SOCKET didn't return valid data"
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fi
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else
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PrintDebug "Error: specified socket $POOL_SOCKET is not valid"
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fi
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elif [[ $POOL_TYPE == "IPv4" ]] || [[ $POOL_TYPE == "IPv6" ]]; then
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#We have a TCP connection here, check it:
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# shellcheck disable=SC2016
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CONNECTION_TYPE=$(${S_ECHO} "${pool}" | $S_AWK '{print $8}')
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if [[ $CONNECTION_TYPE == "TCP" ]]; then
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#The connection must have state LISTEN:
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LISTEN=$(${S_ECHO} "${pool}" | $S_GREP -F -w "(LISTEN)")
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if [[ -n $LISTEN ]]; then
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#Check and replace * to localhost if it's found. Asterisk means that the PHP listens on
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#all interfaces.
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POOL_SOCKET=$(${S_ECHO} -n "${POOL_SOCKET/*:/localhost:}")
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PrintDebug "Found TCP connection $POOL_SOCKET"
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ProcessPool "${line}" "${POOL_SOCKET}"
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POOL_STATUS=$?
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if [[ ${POOL_STATUS} -gt 0 ]]; then
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FOUND_POOL="1"
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PrintDebug "Success: TCP connection $POOL_SOCKET returned valid status data"
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else
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PrintDebug "Error: TCP connection $POOL_SOCKET didn't return valid data"
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fi
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else
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PrintDebug "Warning: expected connection state must be LISTEN, but it was not detected"
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fi
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else
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PrintDebug "Warning: expected connection type is TCP, but found $CONNECTION_TYPE"
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PrintDebug "Warning: expected connection state must be LISTEN, but it was not detected"
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fi
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else
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PrintDebug "Unsupported type $POOL_TYPE, skipping"
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PrintDebug "Warning: expected connection type is TCP, but found $CONNECTION_TYPE"
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fi
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else
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PrintDebug "Warning: pool type or socket is empty"
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PrintDebug "Unsupported type $POOL_TYPE, skipping"
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fi
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else
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PrintDebug "Pool already found, skipping process: $pool"
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PrintDebug "Warning: pool type or socket is empty"
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fi
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else
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PrintDebug "Error: failed to get process information. Probably insufficient privileges. Use sudo or run this script under root."
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fi
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done <<<"$POOL_PARAMS_LIST"
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if [[ -n ${FOUND_POOL} ]]; then
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EncodeToJson "${line}" "${POOL_SOCKET}"
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else
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if [[ -z ${FOUND_POOL} ]]; then
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PrintDebug "Error: failed to discover information for pool $line"
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fi
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else
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PrintDebug "Error: failed to find PID for pool $line"
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fi
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done <<<"$POOL_LIST"
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done <<<"$POOL_NAMES_LIST"
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PrintDebug "Processing pools from old cache..."
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for CACHE_ITEM in "${CACHE[@]}"; do
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