pan3793 opened a new pull request #34831:
URL: https://github.com/apache/spark/pull/34831
### What changes were proposed in this pull request?
Simplify code of fetchBlocks w/o retry
### Why are the changes needed?
Simplify code.
The original code added in [SPARK-4188], the `RetryingBlockTransferor`
should be stable.
#33340 renames `RetryingBlockFetcher` to `RetryingBlockTransferor`, the
comments still calls it as `Fetcher`, it's a little misleading.
```
if (maxRetries > 0) {
// Note this Fetcher will correctly handle maxRetries == 0; we avoid it
just in case there's
// a bug in this code. We should remove the if statement once we're sure
of the stability.
new RetryingBlockTransferor(transportConf, blockFetchStarter, blockIds,
listener).start()
} else {
blockFetchStarter.createAndStart(blockIds, listener)
}
```
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Existing UTs.
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