背景前提
自建gitlab，断电后， web端点击项目， 直接显示404页面。
查看项目所属组，发现存在一个为合并的分支
bash无法拉取代码
$ git pull
error: RPC failed; HTTP 500 curl 22 The requested URL returned error: 500 Internal Server Error
fatal: The remote end hung up unexpectedly
管理员登录web端， 在AdminArea Projects 中还能够看到项目基本详情
点击按钮， 检测项目，检测失败，查看
repocheck.log
# Logfile created on 2019-07-02 09:42:56 +0000 by logger.rb/61378
E, [2019-07-02T09:42:56.440675 #516] ERROR -- : Could not fsck repository: error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/1d/39daaec870a710014fd534ca319273ce60c482 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/1d/39daaec870a710014fd534ca319273ce60c482: No such file or directory
error: 1d39daaec870a710014fd534ca319273ce60c482: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/1d/39daaec870a710014fd534ca319273ce60c482
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/35/649a49ce62cb68a2f4f46833611a8306e4b855 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/35/649a49ce62cb68a2f4f46833611a8306e4b855: No such file or directory
error: 35649a49ce62cb68a2f4f46833611a8306e4b855: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/35/649a49ce62cb68a2f4f46833611a8306e4b855
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/53/1383b717745c519f6106b86adffd758cebd6cc is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/53/1383b717745c519f6106b86adffd758cebd6cc: No such file or directory
error: 531383b717745c519f6106b86adffd758cebd6cc: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/53/1383b717745c519f6106b86adffd758cebd6cc
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/5b/e1a9324912e90e9e36cd6c867c1e7d0ed0c27c is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/5b/e1a9324912e90e9e36cd6c867c1e7d0ed0c27c: No such file or directory
error: 5be1a9324912e90e9e36cd6c867c1e7d0ed0c27c: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/5b/e1a9324912e90e9e36cd6c867c1e7d0ed0c27c
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/70/47c23d5ca7dd11dad54445e7e5d95510eafbc4 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/70/47c23d5ca7dd11dad54445e7e5d95510eafbc4: No such file or directory
error: 7047c23d5ca7dd11dad54445e7e5d95510eafbc4: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/70/47c23d5ca7dd11dad54445e7e5d95510eafbc4
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/8a/61840e15e0ebe90d50694587497dec06215a93 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/8a/61840e15e0ebe90d50694587497dec06215a93: No such file or directory
error: 8a61840e15e0ebe90d50694587497dec06215a93: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/8a/61840e15e0ebe90d50694587497dec06215a93
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/93/16329de2806543fd3a79f2d5fe9776a0216fd4 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/93/16329de2806543fd3a79f2d5fe9776a0216fd4: No such file or directory
error: 9316329de2806543fd3a79f2d5fe9776a0216fd4: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/93/16329de2806543fd3a79f2d5fe9776a0216fd4
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a1/eabca346796050e6256ebd45791770f1a8c9c7 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a1/eabca346796050e6256ebd45791770f1a8c9c7: No such file or directory
error: a1eabca346796050e6256ebd45791770f1a8c9c7: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a1/eabca346796050e6256ebd45791770f1a8c9c7
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a9/702dc1b2d93269c928a9417e83df26f2bc6f17 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a9/702dc1b2d93269c928a9417e83df26f2bc6f17: No such file or directory
error: a9702dc1b2d93269c928a9417e83df26f2bc6f17: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a9/702dc1b2d93269c928a9417e83df26f2bc6f17
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/cc/aa3d86df8f6dad83af2904dd17e1276aa5087b is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/cc/aa3d86df8f6dad83af2904dd17e1276aa5087b: No such file or directory
error: ccaa3d86df8f6dad83af2904dd17e1276aa5087b: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/cc/aa3d86df8f6dad83af2904dd17e1276aa5087b
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/d0/34c8674f5449b1ea9e215a758d9adb0962d8b9 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/d0/34c8674f5449b1ea9e215a758d9adb0962d8b9: No such file or directory
error: d034c8674f5449b1ea9e215a758d9adb0962d8b9: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/d0/34c8674f5449b1ea9e215a758d9adb0962d8b9
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/e6/6cb1a088127cf96fa3054e99fe5ec45a9e6db5 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/e6/6cb1a088127cf96fa3054e99fe5ec45a9e6db5: No such file or directory
error: e66cb1a088127cf96fa3054e99fe5ec45a9e6db5: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/e6/6cb1a088127cf96fa3054e99fe5ec45a9e6db5
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/f0/49a30ab2203d6fb1e153f2557a13e5f2fc8857 is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/f0/49a30ab2203d6fb1e153f2557a13e5f2fc8857: No such file or directory
error: f049a30ab2203d6fb1e153f2557a13e5f2fc8857: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/f0/49a30ab2203d6fb1e153f2557a13e5f2fc8857
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/fd/e965b652abe5b4cea5456a3f512c8746e3433f is empty
error: unable to mmap /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/fd/e965b652abe5b4cea5456a3f512c8746e3433f: No such file or directory
error: fde965b652abe5b4cea5456a3f512c8746e3433f: object corrupt or missing: /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/fd/e965b652abe5b4cea5456a3f512c8746e3433f
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a9/702dc1b2d93269c928a9417e83df26f2bc6f17 is empty
error: object file /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a9/702dc1b2d93269c928a9417e83df26f2bc6f17 is empty
fatal: loose object a9702dc1b2d93269c928a9417e83df26f2bc6f17 (stored in /var/opt/gitlab/git-data/repositories/dev/android_talk.git/objects/a9/702dc1b2d93269c928a9417e83df26f2bc6f17) is corrupt
处理
进入 repository 目录 用 git fsck命令检测，错误很多。
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git fsck error: object file ./objects/1d/39daaec870a710014fd534ca319273ce60c482 is empty
error: unable to mmap ./objects/1d/39daaec870a710014fd534ca319273ce60c482: No su ch file or directory
error: 1d39daaec870a710014fd534ca319273ce60c482: object corrupt or missing: ./ob jects/1d/39daaec870a710014fd534ca319273ce60c482
error: object file ./objects/35/649a49ce62cb68a2f4f46833611a8306e4b855 is empty
error: unable to mmap ./objects/35/649a49ce62cb68a2f4f46833611a8306e4b855: No su ch file or directory
error: 35649a49ce62cb68a2f4f46833611a8306e4b855: object corrupt or missing: ./ob jects/35/649a49ce62cb68a2f4f46833611a8306e4b855
error: object file ./objects/53/1383b717745c519f6106b86adffd758cebd6cc is empty
error: unable to mmap ./objects/53/1383b717745c519f6106b86adffd758cebd6cc: No su ch file or directory
error: 531383b717745c519f6106b86adffd758cebd6cc: object corrupt or missing: ./ob jects/53/1383b717745c519f6106b86adffd758cebd6cc
error: object file ./objects/5b/e1a9324912e90e9e36cd6c867c1e7d0ed0c27c is empty
error: unable to mmap ./objects/5b/e1a9324912e90e9e36cd6c867c1e7d0ed0c27c: No su ch file or directory
error: 5be1a9324912e90e9e36cd6c867c1e7d0ed0c27c: object corrupt or missing: ./ob jects/5b/e1a9324912e90e9e36cd6c867c1e7d0ed0c27c
error: object file ./objects/70/47c23d5ca7dd11dad54445e7e5d95510eafbc4 is empty
error: unable to mmap ./objects/70/47c23d5ca7dd11dad54445e7e5d95510eafbc4: No su ch file or directory
error: 7047c23d5ca7dd11dad54445e7e5d95510eafbc4: object corrupt or missing: ./ob jects/70/47c23d5ca7dd11dad54445e7e5d95510eafbc4
error: object file ./objects/8a/61840e15e0ebe90d50694587497dec06215a93 is empty
error: unable to mmap ./objects/8a/61840e15e0ebe90d50694587497dec06215a93: No su ch file or directory
删除为0的文件， 再次检测
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# find . - size 0 -delete
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git fsck Checking object directories: 100% (256/256), done.
Checking objects: 100% (4544/4544), done.
error: HEAD: invalid sha1 pointer a9702dc1b2d93269c928a9417e83df26f2bc6f17
error: refs/heads/master: invalid sha1 pointer a9702dc1b2d93269c928a9417e83df26f 2bc6f17
dangling blob 6661c1d473296dcf7ff846b25492d874215ddbe1
发现问题变少但是还没有解决， 界面上检测，得到同样的结果
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git log
fatal: bad object HEAD
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git update-ref HEAD ref:master
fatal: ref:master: not a valid SHA1
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git reflog
fatal: bad object HEAD
找到最后一次代码合并
发现 a9702dc1b2d93269c928a9417e83df26f2bc6f17 ，git update-ref更新
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git update-ref HEAD a9702dc1b2d93269c928a9417e83df26f2bc6f17
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git fsck --full
Checking object directories: 100% (256/256), done.
Checking objects: 100% (4544/4544), done.
error: HEAD: invalid sha1 pointer a9702dc1b2d93269c928a9417e83df26f2bc6f17
error: refs/heads/master: invalid sha1 pointer a9702dc1b2d93269c928a9417e83df26f2bc6f17
dangling blob 6661c1d473296dcf7ff846b25492d874215ddbe1
发现还是一样 invalid sha1 pointer
找到最后一次合并的commit_id 63ff9cf659d5c2404a3b2ecc53de6d9dd31296f0
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git update-ref HEAD 63ff9cf659d5c2404a3b2ecc53de6d9dd31296f0
root@gitlab:/var/opt/gitlab/git-data/repositories/dev/android_talk.git# git fsck --full
Checking object directories: 100% (256/256), done.
Checking objects: 100% (4544/4544), done.
dangling blob 6661c1d473296dcf7ff846b25492d874215ddbe1
再次打开项目
已经不是404页面。 页面已经到了修改的最后合并的情况。
参考
http://blog.jason.tools/2019/01/gitlab-repository-404.html
https://vincenttam.github.io/blog/2016/08/17/restore-corrupt-git-repository/
https://ask.helplib.com/git/post_160790
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