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|
How to hunt memory issues in production
=======================================
true \
&& SVCNAME=foo-prod \
&& PID=42 \
&& OC= \
&& JMX= \
&& MemLeakTry1="lua -W MemLeakTry1.lua" \
&& dropPadding () { sed -E 's_ *; *_;_g'; } \
&& getPodName () { ${OC:?} get pods | egrep ston-[0-9] | cut -d' ' -f1; } \
&& true
${OC:?} exec -ti "$(${OC:?} get pods|egrep ston-1|cut -f1 -d' ')" -- pmap 9 > "pmap/${SVCNAME:?}"-pmap-$(date -u +%Y%m%d-%H%M%S).txt
true `# Track pod memory` \
&& ${OC:?} exec -ti "$(${OC:?} get pods|grep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'true \
&& printf '\''h;PageSize;%s\n'\'' $(getconf PAGESIZE) \
&& printf '\''c;%-24s;%8s;%8s;%8s;%5s;%4s;%3s;%8s;%3s;%7s\n'\'' When nThrds size RSS SHR text lib data dt nFds \
&& while true; do true \
&& printf '\''r;%s;%8s;%8d;%8d;%5d;%4d;%3d;%8d;%3d;%7d\n'\'' \
"$(date -Is)" \
$(cat /proc/'${PID:?}'/stat|cut -d" " -f20) \
$(cat /proc/'${PID:?}'/statm) \
$(ls -1 /proc/'${PID:?}'/fd | wc -l) \
&& sleep $(expr 60 - \( $(date +%s) % 60 \)) || break; done' \
| tee "mem/${SVCNAME:?}"-mem-$(date +%Y%m%d-%H%M%S%z).csv
true `# log JMX stuff` \
&& grepUsed () { egrep 'used : ' | sed -r 's_^[^0-9]+ ([0-9]+) [^0-9]+$_\1_'; } \
&& grepPureNumberLine () { egrep $(printf '^[0-9]+\r?$') | sed -r 's_^(.*)\r$_\1_'; } \
&& (true \
&& printf 'c; When ; JvmMetaspace; jvmNonHeap; JvmClassCnt; JvmHeap\n' \
&& while true; do true \
&& metaSpcByts="$(curl -sS "${JMX:?}"'/servers/0/domains/java.lang/mbeans/name=Metaspace,type=MemoryPool/attributes/Usage/' | grepUsed)" \
&& jvmNonHeap="$(curl -sS "${JMX:?}"'/servers/0/domains/java.lang/mbeans/type=Memory/attributes/NonHeapMemoryUsage/' | grepUsed)" \
&& ldClassCnt="$(curl -sS "${JMX:?}"'/servers/0/domains/java.lang/mbeans/type=ClassLoading/attributes/LoadedClassCount/' | grepPureNumberLine)" \
&& jvmHeap="$(curl -sS "${JMX:?}"'/servers/0/domains/java.lang/mbeans/type=Memory/attributes/HeapMemoryUsage/' | grepUsed)" \
&& printf 'r;%s;%13d;%11d;%12d;%11d\n' "$(date -Is)" "${metaSpcByts:?}" "${jvmNonHeap:?}" "${ldClassCnt:?}" "${jvmHeap:?}" \
&& sleep $(expr 60 - \( $(date +%s) % 60 \)) || break \
; done) \
| tee "jmx/houston-prod-jmx-Metaspace-used-$(date +%Y%m%d-%H%M%S).log" \
&& true
(true `# Fetch logs` \
&& while true; do true \
&& printf '%s - Fetch logs\n' "$(date -Is)" \
&& ${OC:?} exec -i "$(getPodName)" -- sh -c 'cd /usr/local/vertx/logs && (tar -cz houston* || test $? -eq 1)' \
> "logs/${SVCNAME:?}-log-$(date -u +%Y%m%d-%H%M%SZ).tgz" \
&& sleep $(expr 14400 - \( $(date +%s) % 14400 \)) || break; done \
&& true)
true `# Merge logs` \
&& PREFX="houston-prod-log-" \
&& SUFFX=".tgz" \
&& for SRCTGZ in \
${PREFX:?}20231110-160510Z${SUFFX:?} \
${PREFX:?}20231110-181226Z${SUFFX:?} \
${PREFX:?}20231114-093133Z${SUFFX:?} \
${PREFX:?}20231114-120002Z${SUFFX:?} \
${PREFX:?}20231114-123040Z${SUFFX:?} \
${PREFX:?}20231114-160001Z${SUFFX:?} \
${PREFX:?}20231116-082933Z${SUFFX:?} \
${PREFX:?}20231116-120002Z${SUFFX:?} \
${PREFX:?}20231116-160002Z${SUFFX:?} \
${PREFX:?}20231117-081112Z${SUFFX:?} \
${PREFX:?}20231117-120001Z${SUFFX:?} \
${PREFX:?}20231117-164612Z${SUFFX:?} \
; do true \
&& echo "[INFO ] Create ${SRCTGZ%.*}.log" \
&& tar xf ../logs/${SRCTGZ:?} \
&& unzip houston.log.1.zip \
&& cat houston.log.1 houston.log > "${SRCTGZ%.*}.log" \
&& rm houston.log.1.zip houston.log.1 houston.log \
;done && true \
&& printf '%s' '
local newLogFileMerger = require("AndisLogUtils").newLogFileMerger
local merger = newLogFileMerger{
sources = {
io.open("houston-prod-log-20231110-160510Z.log", "r"),
io.open("houston-prod-log-20231110-181226Z.log", "r"),
io.open("houston-prod-log-20231114-093133Z.log", "r"),
io.open("houston-prod-log-20231114-120002Z.log", "r"),
io.open("houston-prod-log-20231114-123040Z.log", "r"),
io.open("houston-prod-log-20231114-160001Z.log", "r"),
io.open("houston-prod-log-20231116-082933Z.log", "r"),
io.open("houston-prod-log-20231116-120002Z.log", "r"),
io.open("houston-prod-log-20231116-160002Z.log", "r"),
io.open("houston-prod-log-20231117-081112Z.log", "r"),
io.open("houston-prod-log-20231117-120001Z.log", "r"),
io.open("houston-prod-log-20231117-164612Z.log", "r"),
},
snk = { write = function( t, buf, b, c ) io.stdout:write(buf) io.stdout:write("\n") end, },
}' | lua -W - | gzip -n > houston-log-merged-$(date -u +%Y%m%d-%H%M%S)Z.log.gz \
&& true
`# Create heap dump`
com.sun.management.dumpHeap("/usr/local/vertx/houston-storage-file/houston-___-heap-2023____-____Z.hprof", true)
`# Inspect`
ocprod exec -i "$(ocprod get pods|egrep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'cd /usr/local/vertx/houston-storage-file && ls -Ahl'
true `# Get made heap dump` \
&& echo create checksum. \
&& ocprod exec -i "$(ocprod get pods|egrep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'cd /usr/local/vertx/houston-storage-file && md5sum -b houston-*.hprof >> MD5SUM-$(date -u +%Y%m%d-%H%M%SZ)' \
&& echo checksum done. Begin dload. \
&& ocprod exec -i "$(ocprod get pods|egrep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'cd /usr/local/vertx/houston-storage-file && tar c houston-*.hprof MD5SUM*' | (cd heapDump && tar x) \
&& echo dload done \
&& true
true `# Probe` \
&& stage=prod \
&& logFile="houston-ready-${stage:?}-$(date -u +%Y%m%d-%H%M%SZ).log" \
&& printf 'c; when ;rspCode; connectSec; trsfSec; totlSec; curlExit\n' | tee -a "${logFile:?}" \
&& while true; do true \
&& printf 'r;%s;%7d;%11.3f;%8.3f;%8.3f;%9d\n' \
$(date +%Y-%m-%dT%H:%M:%S%z) \
$(curl -sSw "%{http_code} %{time_connect} %{time_starttransfer} %{time_total}" "${houstonServerInfoUrl:?}" -o /dev/null || ex=$? && echo " $ex") \
| tee -a "${logFile:?}" \
&& sleep $(expr 60 - $(date +%s) % 60) || break \
;done \
&& true
true \
&& ONE="houston-prod-pmap-20231102-163425.txt" \
&& TWO="houston-prod-pmap-20231103-074301.txt" \
&& diff -U0 "${ONE:?}" "${TWO:?}" | egrep '^\+' | sed -r 's_\+([^ ]+) .*$_\1_'|sort|uniq \
&& true
(true \
&& for F in $(ls *pmap*.txt); do true \
&& printf "$F\n" \
&& DATE="$(date +%s -d "$(echo $F|sed -r 's_.*([0-9]{4})([0-9]{2})([0-9]{2})-([0-9]{2})([0-9]{2})([0-9]{2}).*_\1-\2-\3T\4:\5:\6Z_')")" \
&& <"$F" ${MemLeakTry1:?} --date "${DATE:?}" > "${F%.*}.csv" \
;done)
Zwischenfall auf INT 20231124
`# Create heap dump`
com.sun.management.dumpHeap("/usr/local/vertx/houston-storage-file/houston-___-heap-2023____-____Z.hprof", true)
`# Inspect`
${OC:?} exec -i "$(${OC:?} get pods|egrep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'cd /usr/local/vertx/houston-storage-file && ls -Ahl'
true `# Get made heap dump` \
&& if test ! -d heapDump; then echo "Dir heapDump missing"; false ;fi \
&& echo create checksum. \
&& ${OC:?} exec -i "$(${OC:?} get pods|egrep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'cd /usr/local/vertx/houston-storage-file && md5sum -b houston-*.hprof >> MD5SUM-$(date -u +%Y%m%d-%H%M%SZ)' \
&& echo checksum done. Begin dload. \
&& ${OC:?} exec -i "$(${OC:?} get pods|egrep ston-[1-9]|cut -f1 -d' ')" -- sh -c 'cd /usr/local/vertx/houston-storage-file && tar c houston-*.hprof MD5SUM*' | (cd heapDump && tar x) \
&& echo dload done \
&& true
|
