[jira] [Commented] (HBASE-18471) Deleted qualifier re-appearing after multiple puts.
[
https://issues.apache.org/jira/browse/HBASE-18471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16125294#comment-16125294
]
Chia-Ping Tsai commented on HBASE-18471:
Ping for reviews. This bug makes our hbase lose data. We should resolve it
before next release.
> Deleted qualifier re-appearing after multiple puts.
> ---
>
> Key: HBASE-18471
> URL: https://issues.apache.org/jira/browse/HBASE-18471
> Project: HBase
> Issue Type: Bug
> Components: Deletes, hbase, scan
>Affects Versions: 3.0.0, 1.3.0, 1.3.1, 2.0.0-alpha-1
>Reporter: Thomas Martens
>Assignee: Chia-Ping Tsai
>Priority: Critical
> Fix For: 2.0.0, 1.4.0, 1.3.2, 1.5.0, 1.2.7
>
> Attachments: HBASE-18471.v0.patch, HBaseDmlTest.java
>
>
> The qualifier of a deleted row (with keep deleted cells true) re-appears
> after re-inserting the same row multiple times (with different timestamp)
> with an empty qualifier.
> Scenario:
> # Put row with family and qualifier (timestamp 1).
> # Delete entire row (timestamp 2).
> # Put same row again with family without qualifier (timestamp 3).
> A scan (latest version) returns the row with family without qualifier,
> version 3 (which is correct).
> # Put the same row again with family without qualifier (timestamp 4).
> A scan (latest version) returns multiple rows:
> * the row with family without qualifier, version 4 (which is correct).
> * the row with family with qualifier, version 1 (which is wrong).
> There is a test scenario attached.
> output:
> 13:42:53,952 [main] client.HBaseAdmin - Started disable of test_dml
> 13:42:55,801 [main] client.HBaseAdmin - Disabled test_dml
> 13:42:57,256 [main] client.HBaseAdmin - Deleted test_dml
> 13:42:58,592 [main] client.HBaseAdmin - Created test_dml
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'myQualifier' with
> timestamp: '1'
> Scan printout =>
> Row: 'myRow', Timestamp: '1', Family: 'myFamily', Qualifier: 'myQualifier',
> Value: 'myValue'
> Delete row: 'myRow'
> Scan printout =>
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'null' with
> timestamp: '3'
> Scan printout =>
> Row: 'myRow', Timestamp: '3', Family: 'myFamily', Qualifier: '', Value:
> 'myValue'
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'null' with
> timestamp: '4'
> Scan printout =>
> Row: 'myRow', Timestamp: '4', Family: 'myFamily', Qualifier: '', Value:
> 'myValue'
> {color:red}Row: 'myRow', Timestamp: '1', Family: 'myFamily', Qualifier:
> 'myQualifier', Value: 'myValue'{color}
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[jira] [Commented] (HBASE-18471) Deleted qualifier re-appearing after multiple puts.
[
https://issues.apache.org/jira/browse/HBASE-18471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16124705#comment-16124705
]
Hadoop QA commented on HBASE-18471:
---
| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
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| {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} |
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0s{color} | {color:green} The patch appears to include 1 new or modified test
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| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
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0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}
30m 16s{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-alpha4. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
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\\
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|| Subsystem || Report/Notes ||
| Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:bdc94b1 |
| JIRA Issue | HBASE-18471 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12881625/HBASE-18471.v0.patch |
| Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck
hbaseanti checkstyle compile |
| uname | Linux eeac63df9221 3.13.0-119-generic #166-Ubuntu SMP Wed May 3
12:18:55 UTC 2017 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 / 173dce7 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC3 |
| Test Results |
https://builds.apache.org/job/PreCommit-HBASE-Build/8058/testReport/ |
| modules | C: hbase-common hbase-server U: . |
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/8058/console |
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> Deleted qualifier re-appearing after multiple
[jira] [Commented] (HBASE-18471) Deleted qualifier re-appearing after multiple puts.
[
https://issues.apache.org/jira/browse/HBASE-18471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16110871#comment-16110871
]
Chia-Ping Tsai commented on HBASE-18471:
We add a cell without qualifier for deleting all columns of the specified
family.
{code}
public Delete addFamily(final byte [] family, final long timestamp) {
if (timestamp < 0) {
throw new IllegalArgumentException("Timestamp cannot be negative. ts=" +
timestamp);
}
List list = familyMap.get(family);
if(list == null) {
list = new ArrayList<>(1);
} else if(!list.isEmpty()) {
list.clear();
}
KeyValue kv = new KeyValue(row, family, null, timestamp,
KeyValue.Type.DeleteFamily);
list.add(kv);
familyMap.put(family, list);
return this;
}
{code}
The *hint cell* created by CellUtil.createLastOnRowCol force the KVScanner to
skip the remaining cells which have the same family/qualifier with *hint cell*
{code}
public Cell getKeyForNextColumn(Cell cell) {
ColumnCount nextColumn = columns.getColumnHint();
if (nextColumn == null) {
return CellUtil.createLastOnRowCol(cell);
} else {
return CellUtil.createFirstOnRowCol(cell, nextColumn.getBuffer(),
nextColumn.getOffset(),
nextColumn.getLength());
}
}
{code}
> Deleted qualifier re-appearing after multiple puts.
> ---
>
> Key: HBASE-18471
> URL: https://issues.apache.org/jira/browse/HBASE-18471
> Project: HBase
> Issue Type: Bug
> Components: Deletes, hbase, scan
>Affects Versions: 3.0.0, 1.3.0, 1.3.1, 2.0.0-alpha-1
>Reporter: Thomas Martens
>Priority: Critical
> Attachments: HBaseDmlTest.java
>
>
> The qualifier of a deleted row (with keep deleted cells true) re-appears
> after re-inserting the same row multiple times (with different timestamp)
> with an empty qualifier.
> Scenario:
> # Put row with family and qualifier (timestamp 1).
> # Delete entire row (timestamp 2).
> # Put same row again with family without qualifier (timestamp 3).
> A scan (latest version) returns the row with family without qualifier,
> version 3 (which is correct).
> # Put the same row again with family without qualifier (timestamp 4).
> A scan (latest version) returns multiple rows:
> * the row with family without qualifier, version 4 (which is correct).
> * the row with family with qualifier, version 1 (which is wrong).
> There is a test scenario attached.
> output:
> 13:42:53,952 [main] client.HBaseAdmin - Started disable of test_dml
> 13:42:55,801 [main] client.HBaseAdmin - Disabled test_dml
> 13:42:57,256 [main] client.HBaseAdmin - Deleted test_dml
> 13:42:58,592 [main] client.HBaseAdmin - Created test_dml
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'myQualifier' with
> timestamp: '1'
> Scan printout =>
> Row: 'myRow', Timestamp: '1', Family: 'myFamily', Qualifier: 'myQualifier',
> Value: 'myValue'
> Delete row: 'myRow'
> Scan printout =>
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'null' with
> timestamp: '3'
> Scan printout =>
> Row: 'myRow', Timestamp: '3', Family: 'myFamily', Qualifier: '', Value:
> 'myValue'
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'null' with
> timestamp: '4'
> Scan printout =>
> Row: 'myRow', Timestamp: '4', Family: 'myFamily', Qualifier: '', Value:
> 'myValue'
> {color:red}Row: 'myRow', Timestamp: '1', Family: 'myFamily', Qualifier:
> 'myQualifier', Value: 'myValue'{color}
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[jira] [Commented] (HBASE-18471) Deleted qualifier re-appearing after multiple puts.
[
https://issues.apache.org/jira/browse/HBASE-18471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16108238#comment-16108238
]
Biju Nair commented on HBASE-18471:
---
Another difference in {{scanner}} behavior, after the test code is run
```
hbase(main):023:0> scan 'test_dml'
ROWCOLUMN+CELL
myRow column=myFamily:,
timestamp=4, value=myValue
myRow column=myFamily:myQualifier,
timestamp=1, value=myValue
1 row(s) in 0.0330 seconds
hbase(main):024:0> scan 'test_dml', {VERSIONS => 10}
ROWCOLUMN+CELL
myRow column=myFamily:,
timestamp=4, value=myValue
myRow column=myFamily:,
timestamp=3, value=myValue
1 row(s) in 0.0290 seconds
```
> Deleted qualifier re-appearing after multiple puts.
> ---
>
> Key: HBASE-18471
> URL: https://issues.apache.org/jira/browse/HBASE-18471
> Project: HBase
> Issue Type: Bug
> Components: Deletes, hbase, scan
>Affects Versions: 1.3.0, 1.3.1
>Reporter: Thomas Martens
> Attachments: HBaseDmlTest.java
>
>
> The qualifier of a deleted row (with keep deleted cells true) re-appears
> after re-inserting the same row multiple times (with different timestamp)
> with an empty qualifier.
> Scenario:
> # Put row with family and qualifier (timestamp 1).
> # Delete entire row (timestamp 2).
> # Put same row again with family without qualifier (timestamp 3).
> A scan (latest version) returns the row with family without qualifier,
> version 3 (which is correct).
> # Put the same row again with family without qualifier (timestamp 4).
> A scan (latest version) returns multiple rows:
> * the row with family without qualifier, version 4 (which is correct).
> * the row with family with qualifier, version 1 (which is wrong).
> There is a test scenario attached.
> output:
> 13:42:53,952 [main] client.HBaseAdmin - Started disable of test_dml
> 13:42:55,801 [main] client.HBaseAdmin - Disabled test_dml
> 13:42:57,256 [main] client.HBaseAdmin - Deleted test_dml
> 13:42:58,592 [main] client.HBaseAdmin - Created test_dml
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'myQualifier' with
> timestamp: '1'
> Scan printout =>
> Row: 'myRow', Timestamp: '1', Family: 'myFamily', Qualifier: 'myQualifier',
> Value: 'myValue'
> Delete row: 'myRow'
> Scan printout =>
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'null' with
> timestamp: '3'
> Scan printout =>
> Row: 'myRow', Timestamp: '3', Family: 'myFamily', Qualifier: '', Value:
> 'myValue'
> Put row: 'myRow' with family: 'myFamily' with qualifier: 'null' with
> timestamp: '4'
> Scan printout =>
> Row: 'myRow', Timestamp: '4', Family: 'myFamily', Qualifier: '', Value:
> 'myValue'
> {color:red}Row: 'myRow', Timestamp: '1', Family: 'myFamily', Qualifier:
> 'myQualifier', Value: 'myValue'{color}
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