Git LFS Push of large files results in a failure with i/o timeout
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
When pushing large objects with Git LFS, the push fails with an i/o timeout error.
Environment
Bitbucket Server & Data Center
Git LFS
Diagnosis
The git client displays the following:
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~ username > git push
Uploading LFS objects: 0% (0/1), 2 GB | 104 MB/s, done.
LFS: Put "https://example.com/rest/git-lfs/storage/EXAMPLE/example-repo/d1786cec9c0d23b42e088b57b425f9f9fcfcad53": read tcp 192.168.0.1:1046->192.168.1.1:443: i/o timeout
error: failed to push some refs to 'https://example.com/rest/git-lfs/storage/EXAMPLE/example-repo.git'~ username >
The key part of the message above is: read tcp 192.168.0.1:1046->192.168.1.1:443: i/o timeout
Cause
LFS is timing out waiting for the next TCP read or write. This is generally seen when pushing larger objects or a large commit, containing multiple large objects.
Solution
To resolve this, the user will need to increase the lfs.activitytimeout value
for their git client. Depending on the version of your client, recent versions have a default value of 30 seconds. In the below command, we will increase to 60 seconds.
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git config lfs.activitytimeout 60
Resource: Git LFS config manual
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