問題

Git commands don't complete successfully.

The following appears in the command console output:

error: RPC failed; HTTP 500 curl 22 The requested URL returned error: 500 Internal Server Error

atlassian-bitbucket.log に次のメッセージが出力される。

ERROR [http-nio-7990-exec-52] <username> @1WU14K3x805x122891x1 193.39.66.214 "POST /scm/<project_key>/<repository_slug>.git/git-upload-pack HTTP/1.1" c.a.s.i.s.g.p.h.GitSmartExitHandler <project_key>/<repository_slug>[10]: Read request from 193.39.66.214 failed: com.atlassian.utils.process.ProcessException: Non-zero exit code: 1
The following was written to stderr:
error: git upload-pack: git-pack-objects died with error.
fatal: git upload-pack: aborting due to possible repository corruption on the remote side.

原因

There may be several causes for this problem:

Cause #1 - Corrupted Git repository due to filesystem corrupton

The repository has become corrupted as a consequence of a file system corruption.

Note: cloning the repository directly on the file system (without using Bitbucket Data Center) may still succeed since a Git clone does not run any additional checks and assumes that the repository is in a consistent state.

Cause #2 - Corrupted Git repository due to insufficient memory

The repository has become corrupted after a repack operation failed due to insufficient memory. Attempting a manual repack of the repository (see Workaround for Cause #1) shows the following error.

Delta compression using up to 4 threads
error: pack-objects died of signal 9)

回避策

If the steps below don't resolve the problem, the repository may be not recoverable. In this case, the situation can be resolved by restoring a backup generated prior to the corruption.

Cause #1

Manually repack the repository.

• Stop Bitbucket Server
• Copy the $BITBUCKET_HOME/shared/data/repositories/<repository_id> folder. This is to make sure that a backup of the entire repository is available.

• Run the following commands from the $BITBUCKET_HOME/shared/data/repositories/<repository_id> path:

  git fsck --no-dangling --name-objects
  git repack -adfln --keep-unreachable --depth=20 --window=200

• Start Bitbucket Server

Cause #2

Set a limit for the memory allocated when running the repack.

• Stop Bitbucket Server
• Copy the $BITBUCKET_HOME/shared/data/repositories/<repository_id> folder. This is to make sure that a backup of the entire repository is available.

• Navigate to the $BITBUCKET_HOME/shared/data/repositories/<repository_id> path.

• Add --window-memory=<n> to the git repack command and see if adjusting the value produces a different output and allows the repack to complete successfully.

git fsck --no-dangling --name-objects
git repack -adfln --keep-unreachable --depth=20 --window=200 --window-memory=500m
..
git repack -adfln --keep-unreachable --depth=20 --window=200 --window-memory=1g

• Start Bitbucket Server