commit 23e6985571d71fe2287da069a884a8798be561fb
author Zhengguo Yang <yangzhgg@gmail.com> Thu Aug 04 11:07:06 2022 +0800
committer GitHub <noreply@github.com> Thu Aug 04 11:07:06 2022 +0800
tree eb246f3359a249839fe68ff1aa5cac5abd2e1ef6
parent ebf8bd21a573918442f656eece99b73f2d1c4dc0
parent 525b6a2e697f02f5ab28417d4a6fb17a2eaced1b

Merge pull request #2 from dujl/hdfs-scan

improve seek performence when seeking a wide range

src/client/InputStreamImpl.cpp

diff --git a/src/client/InputStreamImpl.cpp b/src/client/InputStreamImpl.cpp
index 05f27a5..c8baa9c 100644
--- a/src/client/InputStreamImpl.cpp
+++ b/src/client/InputStreamImpl.cpp
@@ -734,7 +734,7 @@
     }
 
     try {
-        if (blockReader && pos > cursor && pos < endOfCurBlock) {
+        if (blockReader && pos > cursor && pos < endOfCurBlock && (pos - cursor) <= blockReader->available()) {
             blockReader->skip(pos - cursor);
             cursor = pos;
             return;