[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16983118#comment-16983118 ] Larry McCay commented on KNOX-1237: --- Moving out to 1.5.0 due to lack of movement. > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Assignee: Dequan Chen >Priority: Minor > Fix For: 1.5.0 > > Attachments: KNOX-1237.patch, KNOX-1237.patch > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16746435#comment-16746435 ] Dequan Chen commented on KNOX-1237: --- [~risdenk]: The implementation of the Knox Shell HBase stateless scanner is to use a temporary stateful scanner ID to get all the data of a user's request by >=1 step(s) and return the complete data to the user depending on the request (version #, columns, rows etc). So the user does not need to create any stateful scanner(s) to loop through all possible steps for each step's data + combining the data as a whole Therefore, the user does not see any stateful scanner action because of the encapsulation adopted in the object-oriented implementation. Hope that the explanation helps you understand that. Dequan 1/18/2019 > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Assignee: Dequan Chen >Priority: Minor > Fix For: 1.3.0 > > Attachments: KNOX-1237.patch, KNOX-1237.patch > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[
https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16746409#comment-16746409
]
Kevin Risden commented on KNOX-1237:
[~dequanchen] while looking through the patch I see the following line
while (!(tempValue =
HBase.session(session).table(tableName).scanner(scannerId).getNext().now().getString()).isEmpty())
{ +
This looks like it creates a stateful scanner from within the stateless
scanner? That doesn't seem correct to me. There should be no reason to have any
Scanner ID from within the stateless scanner.
> Knox DSL should support HBase Stateless Scanner
> ---
>
> Key: KNOX-1237
> URL: https://issues.apache.org/jira/browse/KNOX-1237
> Project: Apache Knox
> Issue Type: Improvement
> Components: ClientDSL
>Reporter: Kevin Risden
>Assignee: Dequan Chen
>Priority: Minor
> Fix For: 1.3.0
>
> Attachments: KNOX-1237.patch, KNOX-1237.patch
>
>
> KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports
> stateful scanners as shown in the documentation
> (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation).
> HBase REST supports stateless scanners
> ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner])
> which can be easily load balanced. The feature is not well documented in
> HBase REST.
> Currently if using stateful scanners and Knox or HBase REST is being load
> balanced, there will be an issue using that scanner. The stateless scanners
> avoid this since they have all the information necessary.
--
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(v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16725275#comment-16725275 ] Kevin Risden commented on KNOX-1237: Updated patch to recent master due to some of the additional style/correctness checks. > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Assignee: Dequan Chen >Priority: Minor > Fix For: 1.3.0 > > Attachments: KNOX-1237.patch, KNOX-1237.patch > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16720655#comment-16720655 ] Kevin Risden commented on KNOX-1237: This didn't make it into 1.2.0 but reviewing over the next few days. > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Assignee: Dequan Chen >Priority: Minor > Fix For: 1.3.0 > > Attachments: KNOX-1237.patch > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16657957#comment-16657957 ] Kevin Risden commented on KNOX-1237: Thanks set the flag patch available and fix version to 1.2.0 to make sure to look at it. > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Assignee: Dequan Chen >Priority: Minor > Fix For: 1.2.0 > > Attachments: KNOX-1237.patch > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16640087#comment-16640087 ] Dequan Chen commented on KNOX-1237: --- [~risdenk] , As per your request, I just created [^KNOX-1237.patch] and uploaded to this JIRA. It is like the statefull scanner default - non inclusive for end-row. Have a good day! Dequan > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Assignee: Dequan Chen >Priority: Minor > Attachments: KNOX-1237.patch > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16639969#comment-16639969 ] Dequan Chen commented on KNOX-1237: --- [~risdenk] , How are you? I will create the patch for Knox Shell to run HBase statelesss scanner that is not inclusive. If you want an inclusive version for that, please let me know at your earliest convenience. Have a good day! Dequan > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Priority: Minor > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16639801#comment-16639801 ] Kevin Risden commented on KNOX-1237: [~dequanchen] - If you were to upload a patch that would be helpful. > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Priority: Minor > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16506486#comment-16506486 ] Dequan Chen commented on KNOX-1237: --- To [~pzampino], How are you? I have recently implemented the Knox shell HBase stateless scanner and it passed all the tests against our enterprise HDP-included HBase (v1.1.2). I am wondering if I provide the patch in the coming future, can it be integrated to the Knox-1.1.0 release or not? Dequan Chen 6/8/2018 2:35pm > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Priority: Minor > Fix For: 1.2.0 > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16467868#comment-16467868 ] Phil Zampino commented on KNOX-1237: [~risdenk] Since you won't be able to provide a patch in this timeframe, I'm pushing this out to 1.2.0 > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Priority: Minor > Fix For: 1.2.0 > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (KNOX-1237) Knox DSL should support HBase Stateless Scanner
[ https://issues.apache.org/jira/browse/KNOX-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16425758#comment-16425758 ] Kevin Risden commented on KNOX-1237: Setting fix version to Knox 1.1.0 to make sure it doesn't get lost. I don't have a patch for this and won't be working on it in the near future. > Knox DSL should support HBase Stateless Scanner > --- > > Key: KNOX-1237 > URL: https://issues.apache.org/jira/browse/KNOX-1237 > Project: Apache Knox > Issue Type: Improvement > Components: ClientDSL >Reporter: Kevin Risden >Priority: Minor > Fix For: 1.1.0 > > > KNOX-8 added support for HBase REST apis via Knox. The Knox DSL supports > stateful scanners as shown in the documentation > (https://knox.apache.org/books/knox-1-0-0/user-guide.html#table(String+tableName).scanner().create()+-+Scanner+Creation). > HBase REST supports stateless scanners > ([https://hbase.apache.org/1.2/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#operation_stateless_scanner]) > which can be easily load balanced. The feature is not well documented in > HBase REST. > Currently if using stateful scanners and Knox or HBase REST is being load > balanced, there will be an issue using that scanner. The stateless scanners > avoid this since they have all the information necessary. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
