[ https://issues.apache.org/jira/browse/MAPREDUCE-6728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15596716#comment-15596716 ]
Hadoop QA commented on MAPREDUCE-6728: -------------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 12s {color} | {color:blue} Docker mode activated. {color} | | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s {color} | {color:green} The patch appears to include 2 new or modified test files. {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s {color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 53s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 53s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 32s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 52s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 28s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 23s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 36s {color} | {color:green} trunk passed {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 8s {color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 44s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 54s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 54s {color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 28s {color} | {color:red} hadoop-mapreduce-project/hadoop-mapreduce-client: The patch generated 2 new + 277 unchanged - 3 fixed = 279 total (was 280) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 42s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 21s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color} | {color:green} The patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 23s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 30s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 28s {color} | {color:green} hadoop-mapreduce-client-core in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 17s {color} | {color:green} hadoop-mapreduce-client-shuffle in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 17s {color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 23m 58s {color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:9560f25 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12834778/mapreduce6728.006.patch | | JIRA Issue | MAPREDUCE-6728 | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle | | uname | Linux 6e090c3051f6 3.13.0-95-generic #142-Ubuntu SMP Fri Aug 12 17:00:09 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh | | git revision | trunk / 2543852 | | Default Java | 1.8.0_101 | | findbugs | v3.0.0 | | checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6770/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client.txt | | Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6770/testReport/ | | modules | C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle U: hadoop-mapreduce-project/hadoop-mapreduce-client | | Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6770/console | | Powered by | Apache Yetus 0.3.0 http://yetus.apache.org | This message was automatically generated. > Give fetchers hint when ShuffleHandler rejects a shuffling connection > --------------------------------------------------------------------- > > Key: MAPREDUCE-6728 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6728 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: mrv2 > Reporter: Haibo Chen > Assignee: Haibo Chen > Attachments: mapreduce6728.001.patch, mapreduce6728.002.patch, > mapreduce6728.003.patch, mapreduce6728.004.patch, mapreduce6728.005.patch, > mapreduce6728.006.patch, mapreduce6728.prelim.patch > > > If # of open shuffle connection to a node goes over the max, ShuffleHandler > closes the connection immediately without giving fetchers any hint of the > reason, which causes fetchers to fail due to exceptions > java.net.SocketException: Unexpected end of file from server > at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:772) > at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:633) > at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:769) > at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:633) > at > sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1323) > at > java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.verifyConnection(Fetcher.java:430) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.setupConnectionsWithRetry(Fetcher.java:395) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.openShuffleUrl(Fetcher.java:266) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyFromHost(Fetcher.java:323) > at org.apache.hadoop.mapreduce.task.reduce.Fetcher.run(Fetcher.java:193) > OR > java.net.SocketException: Connection reset > at java.net.SocketInputStream.read(SocketInputStream.java:196) > at java.net.SocketInputStream.read(SocketInputStream.java:122) > at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) > at java.io.BufferedInputStream.read1(BufferedInputStream.java:275) > at java.io.BufferedInputStream.read(BufferedInputStream.java:334) > at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:687) > at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:633) > at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:769) > at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:633) > at > sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1323) > at > java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.verifyConnection(Fetcher.java:430) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.setupConnectionsWithRetry(Fetcher.java:395) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.openShuffleUrl(Fetcher.java:266) > at > org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyFromHost(Fetcher.java > Such failures are counted as fetcher failures -- This message was 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