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RHEL °ú CentOS ¿¡¼­ Coredump ¸¦ ³²±â±â À§ÇÑ ¹æ¹ý



* ÀÛ¼º: ±èÁ¤±Õ

1. ´ë»ó

  • RHEL 4 / CentOS 4.x
  • RHEL 5 / CentOS 5.x
  • RHEL 6 (¹ÌÈ®ÀÎ)

2. Ä¿³Î ¼³Á¤

  • /etc/sysctl.conf ¿¡
    kernel.suid_dumpable = 1

    kernel.core_uses_pid = 1 (default °ªÀÓ)

    kernel.core_pattern = /tmp/core/core ·Î

  • ¸¦ ÀÔ·ÂÇÑ ÈÄ¿¡, sysctl -p ¸í·ÉÀ¸·Î Ä¿³Î ÆĶó¹ÌÅÍ ¼öÁ¤À» ¹Ý¿µÇÑ ´ÙÀ½
    mkdir -p /tmp/core
    chmod 777 /tmp/core
    
    ¼³Á¤À» ÇØ ÁØ´Ù.

  • RHEL 5 / CentOS 5 ¿¡¼­ (kernel 2.6.18 ÀÌÈÄ..)
    kernel.suid_dumpable = 1 ÀÌ fs.suid_dumpable = 1 À¸·Î º¯°æµÊ

3. Shell¿¡¼­ÀÇ coredump

  • /etc/bashrc ÀÇ 26¶óÀÎ ÁîÀ½.. ulimit -S -c 0 > /dev/null 2>&1 ¼³Á¤¿¡ ÀÇÇØ core ¸¦ ³²±æ ¼ö ¾øÀ½
  • ~/.bashrc ¿¡ ulimit -c unlimited >/dev/null 2>&1 ¸¦ ³Ö¾î¼­ ÇØ°áÀ» ÇÔ. ¼öÁ¤ ÈÄ, Àç·Î±×ÀÎÀÌ ÇÊ¿äÇÔ.
  • ÇöÀç ¼¼¼Ç¿¡¼­¸¸ Àû¿ëÀ» ÇÏ°í ½Í´Ù¸é ÇöÀç ¼¼¼Ç¿¡¼­ À§ÀÇ ¸í·ÉÀ» ±×³É ½ÇÇàÇÏ¸é µÊ.


4. init script

  • /etc/sysconfig/init ¿¡ '''DAEMON_COREFILE_LIMIT='unlimited À» ¼³Á¤ÇØ ÁÜ
  • /etc/sysconfig/init ¿¡ ¹Ý¿µÇÒ °æ¿ì, init script ·Î ½ÃÀÛÇÏ´Â ¸ðµç µ¥¸óÀÌ ¹Ý¿µÀÌ µÇ¸ç, ¸¸¾à ƯÁ¤ µ¥¸ó¸¸ ÇÊ¿äÇÏ´Ù¸é, °¢ init script ¿¡¼­ . /etc/init.d/functions ¸¦ È£ÃâÇϱâ Àü¿¡ À§ÀÇ ¼³Á¤À» ³Ö¾î ÁÖ¸é µÊ.

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