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Posted to issues@hbase.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2017/04/04 05:19:42 UTC
[jira] [Commented] (HBASE-17871) scan#setBatch(int) call leads
wrong result of VerifyReplication
[ https://issues.apache.org/jira/browse/HBASE-17871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15954567#comment-15954567 ]
Hadoop QA commented on HBASE-17871:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 19s {color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m 0s {color} | {color:green} Patch does not have any anti-patterns. {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:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s {color} | {color:red} The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 44s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 43s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 52s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 17s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 59s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 33s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 49s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 44s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 44s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 52s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 17s {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} hadoopcheck {color} | {color:green} 35m 53s {color} | {color:green} Patch does not cause any errors with Hadoop 2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha2. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 34s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 39s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 120m 4s {color} | {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 19s {color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 171m 1s {color} | {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.11.2 Server=1.11.2 Image:yetus/hbase:8d52d23 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12861798/HBASE-17871.master.001.patch |
| JIRA Issue | HBASE-17871 |
| Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck hbaseanti checkstyle compile |
| uname | Linux 52e9578b5d5a 3.13.0-105-generic #152-Ubuntu SMP Fri Dec 2 15:37:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh |
| git revision | master / e916b79 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/6306/artifact/patchprocess/patch-unit-hbase-server.txt |
| Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/6306/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/6306/console |
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This message was automatically generated.
> scan#setBatch(int) call leads wrong result of VerifyReplication
> ---------------------------------------------------------------
>
> Key: HBASE-17871
> URL: https://issues.apache.org/jira/browse/HBASE-17871
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0, 1.4.0
> Reporter: Tomu Tsuruhara
> Assignee: Tomu Tsuruhara
> Priority: Minor
> Attachments: HBASE-17871.master.001.patch
>
>
> VerifyReplication tool printed weird logs.
> {noformat}
> 2017-04-03 23:30:50,252 ERROR [main] org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication: CONTENT_DIFFERENT_ROWS, rowkey=a00001001930000
> 2017-04-03 23:30:50,280 ERROR [main] org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication: ONLY_IN_PEER_TABLE_ROWS, rowkey=a00001001930000
> 2017-04-03 23:30:50,387 ERROR [main] org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication: CONTENT_DIFFERENT_ROWS, rowkey=a00001003850000
> 2017-04-03 23:30:50,414 ERROR [main] org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication: ONLY_IN_PEER_TABLE_ROWS, rowkey=a00001003850000
> 2017-04-03 23:30:50,480 ERROR [main] org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication: CONTENT_DIFFERENT_ROWS, rowkey=a00001005320000
> 2017-04-03 23:30:50,508 ERROR [main] org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication: ONLY_IN_PEER_TABLE_ROWS, rowkey=a00001005320000
> {noformat}
> Here, each bad rows were marked as both {{CONTENT_DIFFERENT_ROWS}} and {{ONLY_IN_PEER_TABLE_ROWS}}.
> This should never happen so I took a look at code and found scan.setBatch call.
> {code}
> @Override
> public void map(ImmutableBytesWritable row, final Result value,
> Context context)
> throws IOException {
> if (replicatedScanner == null) {
> ...
> final Scan scan = new Scan();
> scan.setBatch(batch);
> {code}
> As stated in HBASE-16376, {{scan#setBatch(int)}} call implicitly allows scan results to be partial.
> Since {{VerifyReplication}} is assuming each {{scanner.next()}} call returns entire row,
> partial results break compare logic.
> We should avoid setBatch call here.
> Thanks to RPC chunking (explained in this blog https://blogs.apache.org/hbase/entry/scan_improvements_in_hbase_1),
> it's safe and acceptable I think.
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