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GMOアドマーケティングAdvent Calendar 2021

Day 22

サクッとApacheのerrorlogをJSON化してBigQueryにLoadします

Last updated at Posted at 2021-12-21

このエントリーは、GMOアドマーケティング Advent Calendar 2021【12/22】 の記事です。

##Overview
apacheのerrorlogを簡単にBig QueryにUploadする方法になります。

##Reference
ErrorLogFormat
errorlogのformat変更はapache2.4から対応しています

##Environment
apache2.4

##Sample Format

ErrorLogFormat "{\"message\":\"%M\",\"error_time\":\"%{cu}t\",\"loglevel\":\"%-m:%l\",\"serverip\":\"%A\",\"host\":\"%a\",\"referer\":\"%-{Referer}i\""}"

##Sample Log Export

{"message":"error message","error_time":"2021-12-25 12:11:05.763873","loglevel":"php7:notice","serverip":"192.168.1.121:80","host":"xx.xxx.xxx.xxx:40812","referer":"http://hogehoge.jp/","log_type":"apache_error"}

##Schema

[
  {
    "name": "error_time",
    "type": "TIMESTAMP",
    "mode": "REQUIRED"
  },
  {
    "description": "ログレベル",
    "name": "loglevel",
    "type": "STRING",
    "mode": "NULLABLE"
  },
  {
    "name": "serverip",
    "type": "STRING",
    "mode": "NULLABLE"
  },
  {
    "name": "host",
    "type": "STRING",
    "mode": "NULLABLE"
  },
  {
    "name": "message",
    "type": "STRING",
    "mode": "NULLABLE"
  },
  {
    "name": "referer",
    "type": "STRING",
    "mode": "NULLABLE"
  }
]

##Big Query Upload Shell

#!/bin/bash

/bin/echo "S: `date +'%Y-%m-%d %H:%M:%S'`"

v_year="2021"
v_month="12"
v_day="25"
v_ymd="${v_year}${v_month}${v_day}"

v_gcp_project="GCPPROJECT"
v_gcp_bq_dataset="file"
v_gcspath="gs://DATASET/file/2021/12/25"
v_table="error"

v_errorfilename=error_log.${v_ymd}
v_errorfilepath=/var/log/httpd/${v_errorfilename}

#Compression
if [ ! -f ${v_errorfilepath}.gz ]; then
  nice -n 19 grep -v "^{-" ${v_errorfilepath} > ${v_errorfilepath}_tmp && \
  nice -n 19 sed -i -e "s/'/\"/g" ${v_errorfilepath}_tmp && \
  nice -n 19 gzip --fast -c ${v_errorfilepath}_tmp > ${v_errorfilepath}.gz && \
  nice -n 19 rm -f ${v_errorfilepath}_tmp
fi

#GCS Copy
trickle -s -u 10000 gsutil cp ${v_errorfilepath}.gz ${v_gcspath}/

#Big Query Load
bq load \
--project_id=${v_gcp_project} \
--dataset_id=${v_gcp_bq_dataset} \
--ignore_unknown_values \
--max_bad_records=100 \
--schema=/path/schema/${v_table}.json \
--source_format=NEWLINE_DELIMITED_JSON \
${v_table}_${v_ymd} \
${v_gcspath}/${v_errorfilename}.gz

/bin/echo "E: `date +'%Y-%m-%d %H:%M:%S'`"

##Result
スクリーンショット 2021-12-06 12.28.43.png

##次回のAdvent Calendar 2021
明日は、【@watashinohakumai】さんの【AWS SAPを取得したら視野が広がった話】についてのお話です。
お楽しみに。

クリスマスまで続くGMOアドマーケティング Advent Calendar 2021
ぜひ今後も投稿をウォッチしてください!

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