saxenapranav commented on code in PR #6699:
URL: https://github.com/apache/hadoop/pull/6699#discussion_r1570447568
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hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsInputStream.java:
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@@ -376,32 +439,48 @@ private int readLastBlock(final byte[] b, final int off,
final int len)
// data need to be copied to user buffer from index bCursor,
// AbfsInutStream buffer is going to contain data from last block start. In
// that case bCursor will be set to fCursor - lastBlockStart
- long lastBlockStart = max(0, contentLength - footerReadSize);
+ if (!fileStatusInformationPresent.get()) {
+ long lastBlockStart = max(0, (fCursor + len) - footerReadSize);
+ bCursor = (int) (fCursor - lastBlockStart);
+ return optimisedRead(b, off, len, lastBlockStart, min(fCursor + len,
footerReadSize), true);
+ }
+ long lastBlockStart = max(0, getContentLength() - footerReadSize);
bCursor = (int) (fCursor - lastBlockStart);
// 0 if contentlength is < buffersize
- long actualLenToRead = min(footerReadSize, contentLength);
- return optimisedRead(b, off, len, lastBlockStart, actualLenToRead);
+ long actualLenToRead = min(footerReadSize, getContentLength());
+ return optimisedRead(b, off, len, lastBlockStart, actualLenToRead, false);
}
private int optimisedRead(final byte[] b, final int off, final int len,
- final long readFrom, final long actualLen) throws IOException {
+ final long readFrom, final long actualLen,
+ final boolean isReadWithoutContentLengthInformation) throws IOException {
Review Comment:
Renamed it isOptimizedReadWithoutContentLengthInformation, as it would go
from optimizedread invocation and would flow in information if contentLength is
there at that instant.
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