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제목 처음 보는 현상인데 한번 봐주세요
글쓴이 조주상 작성시각 2014/08/01 13:59:32
댓글 : 3 추천 : 0 스크랩 : 0 조회수 : 13727   RSS
어제 갑자기 DB서버에 접속이 안되는 증상이 생겨서

오늘 로그를 확인해보니 아래처럼 증상이 나타났습니다.

해당 주소는 자카르타로 나오고 아래처럼 로그가 발생됬습니다.

동시에 저렇게 에러가 발생되니 디비에서 차단을 해서 해당 서비스가 

완전히 중단 되서 한시간동안 문제가 생겼었네요

혹시 이런 현상이 뭔지 알고 계신분 계신가요 ㅠㅠ


혹은 이런식의 문제가 생기면 차단하는 것이 잇을까요

 
INFO  - 2014-07-31 20:37:07 --> Validation Page ---------------------------------------------
INFO  - 2014-07-31 20:37:07 --> user- ip : 114.124.x.xx
INFO  - 2014-07-31 20:37:07 --> user_agent : 앱 이름 (iPad; iPhone OS 5.1.1; id_ID)
DEBUG - 2014-07-31 20:37:20 --> Final output sent to browser
DEBUG - 2014-07-31 20:37:20 --> Total execution time: 376.9427
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Model Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> Utf8 Class Initialized
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:37:29 --> UTF-8 Support Enabled
DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
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DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
DEBUG - 2014-07-31 20:38:08 --> Model Class Initialized
DEBUG - 2014-07-31 20:38:08 --> URI Class Initialized
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DEBUG - 2014-07-31 20:38:09 --> Router Class Initialized
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DEBUG - 2014-07-31 20:38:17 --> Output Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Output Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Output Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Security Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Input Class Initialized
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DEBUG - 2014-07-31 20:38:17 --> Input Class Initialized
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DEBUG - 2014-07-31 20:38:17 --> Input Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Input Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Input Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Language Class Initialized
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DEBUG - 2014-07-31 20:38:17 --> Language Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Input Class Initialized
DEBUG - 2014-07-31 20:38:17 --> Global POST and COOKIE data sanitized
DEBUG - 2014-07-31 20:38:17 --> Language Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
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DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
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DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Loader Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
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DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Controller Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Session Class Initialized
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:18 --> Helper loaded: string_helper
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
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DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
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DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
DEBUG - 2014-07-31 20:38:19 --> Database Driver Class Initialized
 다음글 Ci가 아닌 클래스에서 config 값을 가져올 수 있... (2)
 이전글 서버가 데이터를 전송하지 않아 웹페이지를 로드할 수 없... (15)

댓글

변종원(웅파) / 2014/08/01 14:50:11 / 추천 0
slow query 여부를 먼저 보셔야할 것 같네요. 376초 실행시간 동안 db에서 데이터를 가져오는 시간이 얼마나 되는지도요.

차단하더라도 slow query 문제라면 계속 발생할겁니다.

우선 slow query때문에 그런건지 불법시도때문인건지 파악을 하시는게 좋겠네요
조주상 / 2014/08/01 16:06:19 / 추천 0
변종원님 답변 감사합니다.
기존에 slow query 에 대해 로그를 기록하고 있지 않아서 오늘 로그하도록 넣었네요..

혹시 저런 시도나 에러가 발생되면 바로 팅겨내거나 막을 수 있는 방법이 있을런지요..

그리고 서버에 등록된 쿼리중에 어떠한 쿼리도 2초이상걸리는게 없는데 왜 갑자기 저렇게 됬을 까요
변종원(웅파) / 2014/08/01 16:49:50 / 추천 0
sql injection일수도 있구요.

서버쪽 전문이 아니라서 확실하게 있는지는 모르겠지만 프로세스를 감시하면 될 거 같습니다.
apache process가 몇초이상 실행되고 있으면 alert 혹은 그 프로세스 죽이기..
^^