[jira] [Commented] (OAK-6803) Provide a way to for persistent cache to determine which all nodes can be cached

2017-10-12 Thread Chetan Mehrotra (JIRA)

[ 
https://issues.apache.org/jira/browse/OAK-6803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16201577#comment-16201577
 ] 

Chetan Mehrotra commented on OAK-6803:
--

Applied the patch with 1811918 and 1811919

> Provide a way to for persistent cache to determine which all nodes can be 
> cached
> 
>
> Key: OAK-6803
> URL: https://issues.apache.org/jira/browse/OAK-6803
> Project: Jackrabbit Oak
>  Issue Type: Improvement
>  Components: documentmk
>Reporter: Chetan Mehrotra
>Assignee: Chetan Mehrotra
>Priority: Minor
>  Labels: doc-impacting
> Fix For: 1.8
>
> Attachments: OAK-6803-v1.patch, OAK-6803-v2.patch
>
>
> Currently persistent cache if enabled for nodes caches all nodes accessed on 
> the system. It would be better if it can be configured to only cache those 
> nodes which are not volatile so that caching can be effective
> Purpose of this issue is to
> * Provide an extension point in PersistentCache logic to check if a node is 
> to be cached
> * Provide an impl which relies on some static OSGi config to determine that
> Later we can make this impl dynamic i.e. rely on access pattern to cache imp 
> stuff



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[jira] [Commented] (OAK-6803) Provide a way to for persistent cache to determine which all nodes can be cached

2017-10-12 Thread Marcel Reutegger (JIRA)

[ 
https://issues.apache.org/jira/browse/OAK-6803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16201542#comment-16201542
 ] 

Marcel Reutegger commented on OAK-6803:
---

Looks good to me.

+1 for applying the patch.

> Provide a way to for persistent cache to determine which all nodes can be 
> cached
> 
>
> Key: OAK-6803
> URL: https://issues.apache.org/jira/browse/OAK-6803
> Project: Jackrabbit Oak
>  Issue Type: Improvement
>  Components: documentmk
>Reporter: Chetan Mehrotra
>Assignee: Chetan Mehrotra
>Priority: Minor
> Fix For: 1.8
>
> Attachments: OAK-6803-v1.patch, OAK-6803-v2.patch
>
>
> Currently persistent cache if enabled for nodes caches all nodes accessed on 
> the system. It would be better if it can be configured to only cache those 
> nodes which are not volatile so that caching can be effective
> Purpose of this issue is to
> * Provide an extension point in PersistentCache logic to check if a node is 
> to be cached
> * Provide an impl which relies on some static OSGi config to determine that
> Later we can make this impl dynamic i.e. rely on access pattern to cache imp 
> stuff



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[jira] [Commented] (OAK-6803) Provide a way to for persistent cache to determine which all nodes can be cached

2017-10-10 Thread Chetan Mehrotra (JIRA)

[ 
https://issues.apache.org/jira/browse/OAK-6803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16198423#comment-16198423
 ] 

Chetan Mehrotra commented on OAK-6803:
--

Missed that. Okie would change createCachePredicate as per below

# if default config is found then it would return alwaysTrue
# if config array is empty then also alwaysTrue (or should we disable 
persistent cache then?)
# if non empty and non default use a PathFilter

> Provide a way to for persistent cache to determine which all nodes can be 
> cached
> 
>
> Key: OAK-6803
> URL: https://issues.apache.org/jira/browse/OAK-6803
> Project: Jackrabbit Oak
>  Issue Type: Improvement
>  Components: documentmk
>Reporter: Chetan Mehrotra
>Assignee: Chetan Mehrotra
>Priority: Minor
> Fix For: 1.8
>
> Attachments: OAK-6803-v1.patch
>
>
> Currently persistent cache if enabled for nodes caches all nodes accessed on 
> the system. It would be better if it can be configured to only cache those 
> nodes which are not volatile so that caching can be effective
> Purpose of this issue is to
> * Provide an extension point in PersistentCache logic to check if a node is 
> to be cached
> * Provide an impl which relies on some static OSGi config to determine that
> Later we can make this impl dynamic i.e. rely on access pattern to cache imp 
> stuff



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[jira] [Commented] (OAK-6803) Provide a way to for persistent cache to determine which all nodes can be cached

2017-10-10 Thread Marcel Reutegger (JIRA)

[ 
https://issues.apache.org/jira/browse/OAK-6803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16198374#comment-16198374
 ] 

Marcel Reutegger commented on OAK-6803:
---

Can you also share some benchmark runs that measure the impact of the such a 
filter?

> Provide a way to for persistent cache to determine which all nodes can be 
> cached
> 
>
> Key: OAK-6803
> URL: https://issues.apache.org/jira/browse/OAK-6803
> Project: Jackrabbit Oak
>  Issue Type: Improvement
>  Components: documentmk
>Reporter: Chetan Mehrotra
>Assignee: Chetan Mehrotra
>Priority: Minor
> Fix For: 1.8
>
> Attachments: OAK-6803-v1.patch
>
>
> Currently persistent cache if enabled for nodes caches all nodes accessed on 
> the system. It would be better if it can be configured to only cache those 
> nodes which are not volatile so that caching can be effective
> Purpose of this issue is to
> * Provide an extension point in PersistentCache logic to check if a node is 
> to be cached
> * Provide an impl which relies on some static OSGi config to determine that
> Later we can make this impl dynamic i.e. rely on access pattern to cache imp 
> stuff



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[jira] [Commented] (OAK-6803) Provide a way to for persistent cache to determine which all nodes can be cached

2017-10-10 Thread Marcel Reutegger (JIRA)

[ 
https://issues.apache.org/jira/browse/OAK-6803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16198373#comment-16198373
 ] 

Marcel Reutegger commented on OAK-6803:
---

Looks good, but I would also special case the default configuration in 
{{createCachePredicate()}} and return {{Predicates.alwaysTrue()}} for that case 
as well. IIUC, the special case in the patch is for the empty configuration 
list.

> Provide a way to for persistent cache to determine which all nodes can be 
> cached
> 
>
> Key: OAK-6803
> URL: https://issues.apache.org/jira/browse/OAK-6803
> Project: Jackrabbit Oak
>  Issue Type: Improvement
>  Components: documentmk
>Reporter: Chetan Mehrotra
>Assignee: Chetan Mehrotra
>Priority: Minor
> Fix For: 1.8
>
> Attachments: OAK-6803-v1.patch
>
>
> Currently persistent cache if enabled for nodes caches all nodes accessed on 
> the system. It would be better if it can be configured to only cache those 
> nodes which are not volatile so that caching can be effective
> Purpose of this issue is to
> * Provide an extension point in PersistentCache logic to check if a node is 
> to be cached
> * Provide an impl which relies on some static OSGi config to determine that
> Later we can make this impl dynamic i.e. rely on access pattern to cache imp 
> stuff



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