Firebase InternalInconsistency exception: No space left on device

[Anoopkmr1]

Hi,

I hope you're doing well. I wanted to discuss a crash that was reported by Firebase recently. The crash occurred when my iOS device had very limited storage space available. I'm concerned about this issue and would like to know if Firebase has any solutions or recommendations to handle such situations.

FIRESTORE INTERNAL ASSERTION FAILED: Failed to commit transaction: <LevelDbTransaction NextMutationBatchAfterBatchID: 0 changes (0 bytes):> Failed: IO error: /var/mobile/Containers/Data/Application/1D9183C6-D12F-42CB-8A18-A408B7F5F841/Library/Application Support/firestore/__FIRAPP_DEFAULT/[APP-NAME]/main/001236.ldb: No space left on device (expected status.ok())

[Skizzy-create]

Firestore Internal Assertion Failure: Insufficient Storage Space

The error message indicates an internal assertion failure within Firestore, Firebase's real-time database solution. The specific error points to a failed transaction commit due to an Input/Output (IO) error related to storage space on the device. Insufficient storage space caused the transaction to fail.

Possible Causes and Solutions

This error can occur when the app attempts to write data to the Firestore database, but the device lacks sufficient free space to accommodate the operation. To address this issue, consider the following steps:

1. Check Device Storage: Ensure the device running the app has ample free storage space. Prompt users to check their available storage and clear unnecessary files or apps consuming excessive space.

2. Optimize Firestore Usage: Evaluate how your app interacts with Firestore and optimize data handling. Reduce unnecessary read and write operations, fetch and store only essential data, and implement caching strategies to minimize redundant data requests.

3. Firestore Offline Persistence: Firestore offers offline persistence, enabling the app to work without internet connectivity. However, this feature consumes device storage for caching data. If using offline persistence, limit the amount of cached data to reduce storage impact.

4. Error Handling: Implement robust error-handling mechanisms in your app. When this error occurs, gracefully provide appropriate error messages to users and offer solutions or suggestions to free up storage space.

5. Monitoring and Logging: Integrate logging and monitoring in your app. Consider using Firebase Crashlytics to capture and track recurring issues, including this error. This aids in understanding the root cause and frequency of the problem.

6. Testing with Limited Storage: Test your app in simulated environments or on devices with limited storage. This helps identify and proactively address potential issues related to storage constraints.

By following these steps, you can effectively handle and prevent errors associated with storage space constraints in Firestore transactions.

[Skizzy-create]

let me know if you need help again

[Anoopkmr1]

Thank you for your response. While optimizing Firestore is a good idea, our app requires data to be stored locally as well. However, the proposed methods may not work if there is very limited space on the device.

Since the issue appears to be related to the Firebase SDK, making changes to it may not be possible for us. Therefore, I would appreciate any other approaches or solutions you might know of to resolve this issue.

Please feel free to share any additional insights or suggestions. Your assistance is highly valued.

[mortenbekditlevsen]

Hi @Anoopkmr1 ,
I'm a Firebase user like you, and I'm curious about your hopes or expectations for what should happen when trying to write data when there's not enough space.
Could you share that?

[Anoopkmr1]

https://github.com/firebase/firebase-ios-sdk/issues/6727i got the same issue as mentioned in this PR

…

On Fri, Jul 28, 2023 at 8:25 PM Morten Bek Ditlevsen < ***@***.***> wrote: Hi @Anoopkmr1 <https://github.com/Anoopkmr1> , I'm a Firebase user like you, and I'm curious about your hopes or expectations for what should happen when trying to write data when there's not enough space. Could you share that? — Reply to this email directly, view it on GitHub <#11574 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AZ5Q3DZFVN7UYDCCKGVGZ5TXSPHFLANCNFSM6AAAAAA2RF7MAM> . You are receiving this because you were mentioned.Message ID: ***@***.*** com>

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