HDDS-15521. StreamBlockInputStream fails with TimeoutIOException without retry or failover#10479
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sadanand48 wants to merge 2 commits into
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HDDS-15521. StreamBlockInputStream fails with TimeoutIOException without retry or failover#10479sadanand48 wants to merge 2 commits into
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…out retry or datanode failover.
adoroszlai
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Jun 10, 2026
adoroszlai
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Thanks @sadanand48 for the patch. To reduce overhead of cluster startup, can you please rewrite test cases to share a single cluster?
adoroszlai
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What changes were proposed in this pull request?
StreamBlockInputStream: Added a retry loop in dataAvailableToRead() that catches read failures (including TimeoutIOException) and calls handleExceptions() to release the stream, refresh pipeline/token, and reset requestedLength = position so reads resume from the current offset. On retry, failed datanodes are recorded in a per-stream failedStreamingDatanodes set and excluded from the next init.
XceiverClientGrpc: Extended initStreamRead() to accept an excluded-datanode set and skip those nodes when opening a new streaming stream, so retries target a different replica instead of rebinding to the same dead one. Added INFO logging to show which datanode each init selects.
What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-15521
How was this patch tested?
Mini-Ozone cluster test added