centos8 building 20190620

2019-06-20 KENNETH 0

출처https://wiki.centos.org/About/Building_8 궁금해서 퍼옴, 자세한 내용은 출처에… Current Timeline Item Started Ended Status Sources pushed to CentOS Git 2019-05-07 2019-05-08 DONE Source code evaluation 2019-05-07 YYYY-MM-DD Ongoing New Build System Setup 2019-05-07 2019-05-08 DONE Debranding patches added 2019-05-07 YYYY-MM-DD Ongoing Artwork Requested 2019-03-07 2019-05-07 DONE Artwork Selections 2019-05-09 YYYY-MM-DD Ongoing Build Loop 0 2019-05-07 2019 mid June DONE Build Loop 1 2019 mid June YYYY-MM-DD Ongoing Build Loop N YYYY-MM-DD YYYY-MM-DD Not started Installer work 2019-06-16 YYYY-MM-DD Ongoing QA work YYYY-MM-DD YYYY-MM-DD Not started RC work YYYY-MM-DD YYYY-MM-DD Not started Release work YYYY-MM-DD YYYY-MM-DD Not started Definitions DONE – Step is completed Ongoing – Work is progressing Not started – This step may requires work from another step to reach some completion or requires time from person who is working on other parts. Build loop 0 – Getting an initial set of packages together [ more… ]

16TB limit of ext4 file systems on centos6(rhel6) linux

2019-03-19 KENNETH 0

centos6 환경에서 16TB 이상의 파일시스템 생성하기 환경OS : CentOS-6.10 (6버전 / 64bit)Disk : /dev/sdbSize : 17990.5 GB (17990533775360 bytes) 실행시 에러 메세지mkfs.ext4 /dev/sdb1mke2fs 1.41.12 (17-May-2010)mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits using a blocksize of 4096. 근거 https://access.redhat.com/articles/rhel-limitsrhel 공식 발표 내용이다.. 즉, rhel6(cent6)에서는 16TB 가 한계… 환경 개선을 통해 지원하도록 처리해 보자. /etc/mke2fs.conf : centos6 원래 상태 /etc/mke2fs.conf : 변경된 상태 “auto_64-bit_support = 1” 추가 신버전의 e2fsprogs 설치 2019.03.19 기준으로 1.44.5 버전이 최신이었음 wget http://prdownloads.sourceforge.net/e2fsprogs/e2fsprogs-1.44.5.tar.gztar zxvpf e2fsprogs-1.44.5.tar.gzcd e2fsprogs-1.44.5./configure makemake install 설치된 e2fsprogs 활용 /usr/local/sbin/mkfs.ext4 /dev/sdb1에러가 없이 잘 된다… 그래서 마운트를 시도해 보면… 이렇게 오류가 발생한다. # mount /dev/sdb1 /home2 mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog – try dmesg | tail or so 이유 [ more… ]

(28)No space left on device: AH00023: Couldn’t create the rewrite-map mutex in Apache

2018-09-01 KENNETH 0

  증상 아래 로그와 같이 아파치 실행이 되지 않는 문제 발생 이 에러 참으로 오랜만이다… 아마 마지막으로 본것이 10년은 족히 된것 같구나… 너무 오랜만이어서 대략적으로다가 순간 흠칫… ㄷ ㄷ ㄷ   에러 로그 [core:emerg] [pid 6744:tid 139704271460160] (28)No space left on device: AH00023: Couldn’t create the rewrite-map mutex AH00016: Configuration Failed   당장 처리 아파치 구동 유저가 “nobody”라는 가정 하에… ipcs -s |grep nobody|awk ‘{print $2}’ |xargs ipcrm -s 이후 아파치를 실행해 보면 정상 구동 될 것이다.   원인 리눅스의 세마포어(semaphore)와 관련이 있다.. 제한된 자원 할당량에 의해 더이상 자원을 사용하지 못한다고 생각 하면 될듯…   사용 현황 확인 # ipcs -s —— Semaphore Arrays ——– key semid owner perms nsems 0x00000000 236847104 root 666 1 0x00000000 236879873 root 666 1 0x00000000 236912642 nobody 600 1 0x00000000 236945411 nobody 600 1 0x00000000 87293956 nobody 600 1 0x00000000 87326725 nobody 600 1 [ more… ]

How to download and install prebuilt OpenJDK packages in LINUX(redhat and ubuntu)

2018-04-23 KENNETH 0

URL : http://openjdk.java.net/install/ How to download and install prebuilt OpenJDK packages JDK 9 & Later Oracle’s OpenJDK JDK binaries for Windows, macOS, and Linux are available on release-specific pages of jdk.java.net as .tar.gz archives. As an example, the archives for JDK 10 may be found on jdk.java.net/10 and may be extracted on the command line using $ tar xvf openjdk-10*_bin.tar.gz JDK 8 Debian, Ubuntu, etc. On the command line, type: $ sudo apt-get install openjdk-8-jre The openjdk-8-jre package contains just the Java Runtime Environment. If you want to develop Java programs then please install the openjdk-8-jdk package. Fedora, Oracle Linux, Red Hat Enterprise Linux, etc. On the command line, type: $ su -c “yum install java-1.8.0-openjdk” The java-1.8.0-openjdk package contains just the Java Runtime Environment. If you want to develop Java programs then install the java-1.8.0-openjdk-devel package. JDK 7 Debian, Ubuntu, etc. On the command line, type: $ sudo apt-get install openjdk-7-jre The openjdk-7-jre package contains just the Java Runtime Environment. If you want [ more… ]

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[Apache & PHP] “zend_mm_heap corrupted” error on apache logs

2018-01-03 KENNETH 0

[Apache & PHP] “zend_mm_heap corrupted” error on apache logs   오류 내용 zend_mm_heap corrupted   발생 환경 OS : CentOS-7 WEB : apache-2.4 PHP : php-5.6   참고 : https://stackoverflow.com/questions/2247977/what-does-zend-mm-heap-corrupted-mean http://php.net/manual/en/internals2.memory.management.php   설정 FILE : $APACHE_HOME/bin/apachectl export USE_ZEND_ALLOC=0   절대적인 내용은 아니겠고, 이런 설정을 apachectl 에 한번 추가를 해보자…   PHP 메뉴얼에는 Note: USE_ZEND_ALLOC=0 in the environment will stop the memory manager from functioning, all allocations fall back on the default system allocators which can be useful for debugging leaks, and should only be used for this purpose. 이렇게 설명이 되어 있었다… ㅋㅋㅋㅋ