Improve disk buffering example to retry exporting unsuccessfully exported batches #2539
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This was referenced Jan 3, 2026
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Description:
I have noticed some issues with the "Reading data" section of the disk buffering README.
Firstly, the
CompletableResultCodes are not awaited, they are just fired and forgotten, causing leaks and potential performance problems in the embedding application.Secondly, the errors encountered during exporting are simply ignored, and the iteration goes on causing the unsuccessfully exported batches to be deleted permanently. This means that if there is an IOException for example due to the device or the telemetry backend being offline, the telemetry is dropped silently.
In the proposed example both issues are addressed.
Existing Issue(s):
Related: open-telemetry/opentelemetry-android#1493
Testing:
N/A (only changed a README)