[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Open (was: Patch Available)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
>Priority: Major
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Patch Available (was: Open)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
>Priority: Major
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Patch Available (was: Open)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
>Priority: Major
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Open (was: Patch Available)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
>Priority: Major
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Patch Available (was: Open)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Open (was: Patch Available)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Status: Patch Available (was: Open)
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
>Assignee: Gopal V
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
[jira] [Updated] (HIVE-17124) PlanUtils: Rand() is not a failure-tolerant distribution column
[
https://issues.apache.org/jira/browse/HIVE-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-17124:
---
Attachment: HIVE-17124.1.patch
> PlanUtils: Rand() is not a failure-tolerant distribution column
> ---
>
> Key: HIVE-17124
> URL: https://issues.apache.org/jira/browse/HIVE-17124
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.3.0, 3.0.0
>Reporter: Gopal V
> Attachments: HIVE-17124.1.patch
>
>
> {code}
> else {
> // numPartitionFields = -1 means random partitioning
>
> partitionCols.add(TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("rand"));
> }
> {code}
> This causes known data corruption during failure tolerance operations.
> There is a failure tolerant distribution function inside ReduceSinkOperator,
> which kicks in automatically when using no partition columns
> {code}
> if (partitionEval.length == 0) {
> // If no partition cols, just distribute the data uniformly
> // to provide better load balance. If the requirement is to have a
> single reducer, we should
> // set the number of reducers to 1. Use a constant seed to make the
> code deterministic.
> if (random == null) {
> random = new Random(12345);
> }
> keyHashCode = random.nextInt();
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
