binde created HADOOP-13192:
------------------------------
Summary: org.apache.hadoop.util.LineReader match recordDelimiter
has a bug
Key: HADOOP-13192
URL: https://issues.apache.org/jira/browse/HADOOP-13192
Project: Hadoop Common
Issue Type: Bug
Components: util
Affects Versions: 2.6.2
Reporter: binde
org.apache.hadoop.util.LineReader.readCustomLine() has a bug,
when line is aaaabccc, recordDelimiter is aaab, the result should be a,ccc,
show the code on line 310:
for (; bufferPosn < bufferLength; ++bufferPosn) {
if (buffer[bufferPosn] == recordDelimiterBytes[delPosn]) {
delPosn++;
if (delPosn >= recordDelimiterBytes.length) {
bufferPosn++;
break;
}
} else if (delPosn != 0) {
bufferPosn--;
delPosn = 0;
}
}
shoud be :
for (; bufferPosn < bufferLength; ++bufferPosn) {
if (buffer[bufferPosn] == recordDelimiterBytes[delPosn]) {
delPosn++;
if (delPosn >= recordDelimiterBytes.length) {
bufferPosn++;
break;
}
} else if (delPosn != 0) {
// ------------- change here ------------- start ----
bufferPosn -= delPosn;
// ------------- change here ------------- end ----
delPosn = 0;
}
}
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