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https://issues.apache.org/jira/browse/HADOOP-13192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327189#comment-15327189
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ASF GitHub Bot commented on HADOOP-13192:
-----------------------------------------
Github user zhudebin closed the pull request at:
https://github.com/apache/hadoop/pull/96
> 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
> Original Estimate: 5m
> Remaining Estimate: 5m
>
> 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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