MigrateRepositoryJob: Pushing a batch of 1 Git refs failed on attempt 4/4.

[sasasalamon]

Description

Migrating the entire organization, few repositories failed the migration.
When I tried to migrate those repositories one by one, I'm getting the same error in the logs:

[2024-02-01T18:40:19Z] INFO -- Git source migration started
[2024-02-01T19:05:04Z] ERROR -- MigrateRepositoryJob: Pushing a batch of 1 Git refs failed on attempt 4/4.
[2024-02-01T19:05:04Z] ERROR -- MigrateRepositoryJob: If this happens repeatedly and causes your migration to fail, it means that your repository is too large or complex for GitHub Enterprise Importer.
[2024-02-01T19:05:04Z] ERROR -- Git source migration failed. Please check the Migration Log for more details. Error message: An error occurred while pushing to the remote
[2024-02-01T19:05:04Z] INFO -- Git source migration failed
[2024-02-01T19:05:04Z] INFO -- -----------------------------
[2024-02-01T19:05:04Z] INFO -- Migration failed
[2024-02-01T19:05:04Z] INFO -- -----------------------------

When I run git-sizer on this repo, here are the results:

Processing blobs: 27512
Processing trees: 14920
Processing commits: 4704
Matching commits to trees: 4704
Processing annotated tags: 211
Processing references: 302
| Name                         | Value     | Level of concern               |
| ---------------------------- | --------- | ------------------------------ |
| Overall repository size      |           |                                |
| * Commits                    |           |                                |
|   * Count                    |  4.70 k   |                                |
|   * Total size               |  1.92 MiB |                                |
| * Trees                      |           |                                |
|   * Count                    |  14.9 k   |                                |
|   * Total size               |  51.8 MiB |                                |
|   * Total tree entries       |  1.08 M   |                                |
| * Blobs                      |           |                                |
|   * Count                    |  27.5 k   |                                |
|   * Total size               |  5.09 GiB |                                |
| * Annotated tags             |           |                                |
|   * Count                    |   211     |                                |
| * References                 |           |                                |
|   * Count                    |   302     |                                |
|     * Branches               |     1     |                                |
|     * Tags                   |   218     |                                |
|     * Remote-tracking refs   |    83     |                                |
|                              |           |                                |
| Biggest objects              |           |                                |
| * Commits                    |           |                                |
|   * Maximum size         [1] |  3.68 KiB |                                |
|   * Maximum parents      [2] |     2     |                                |
| * Trees                      |           |                                |
|   * Maximum entries      [3] |   274     |                                |
| * Blobs                      |           |                                |
|   * Maximum size         [4] |  59.3 MiB | ******                         |
|                              |           |                                |
| History structure            |           |                                |
| * Maximum history depth      |  3.17 k   |                                |
| * Maximum tag depth      [5] |     1     |                                |
|                              |           |                                |
| Biggest checkouts            |           |                                |
| * Number of directories  [6] |   294     |                                |
| * Maximum path depth     [7] |     8     |                                |
| * Maximum path length    [7] |   189 B   | *                              |
| * Number of files        [8] |  4.41 k   |                                |
| * Total size of files    [8] |   677 MiB |                                |
| * Number of symlinks     [9] |     3     |                                |
| * Number of submodules       |     0     |                                |

There are no specific rulesets defined, but there are some branch protection rules which are no different than on other repositories where all went through.

Reproduction Steps

gh gei migrate-repo --github-source-org xxx --source-repo xxx --github-target-org xxx --target-repo xxx

[AndrewCsontos]

I am having the same issue. I also tried using --skip-releases to see if that would help, but it didn't.

[AndrewCsontos]

After working with Github Support, there is a setting they can change in the target organization called Octoshift GitOps Feature flag which helped us get past this issue.