[
https://issues.apache.org/jira/browse/SOLR-5474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Noble Paul updated SOLR-5474:
-----------------------------
Description:
In this mode SolrJ would not watch any ZK node
It fetches the state on demand and cache the most recently used n collections
in memory.
SolrJ would not listen to any ZK node. When a request comes for a collection
‘xcoll’
it would first check if such a collection exists
If yes it first looks up the details in the local cache for that collection
If not found in cache , it fetches the node /collections/xcoll/state.json and
caches the information
Any query/update will be sent with extra query param specifying the collection
name , shard name, Role (Leader/Replica), and range (example
\_target_=xcoll:shard1:L:80000000-b332ffff) . A node would throw an error
(INVALID_NODE) if it does not the serve the collection/shard/Role/range combo.
If SolrJ gets INVALID_NODE error it would invalidate the cache and fetch fresh
state information for that collection (and caches it again).
was:
In this mode SolrJ would not watch any ZK node
It fetches the state on demand and cache the most recently used n collections
in memory.
SolrJ would not listen to any ZK node. When a request comes for a collection
‘xcoll’
it would first check if such a collection exists
If yes it first looks up the details in the local cache for that collection
If not found in cache , it fetches the node /collections/xcoll/state.json and
caches the information
Any query/update will be sent with extra query param specifying the collection
name , shard name, Role (Leader/Replica), and range (example
\_target_=xcoll:shard1:L:80000000-b332ffff) . A node would throw an error
(INVALID_NODE) if it does not the serve the collection/shard/Role/range combo.
If a SolrJ gets INVALID_NODE error it would invalidate the cache and fetch
fresh state information for that collection (and caches it again).
> Have a new mode for SolrJ to not watch any ZKNode
> -------------------------------------------------
>
> Key: SOLR-5474
> URL: https://issues.apache.org/jira/browse/SOLR-5474
> Project: Solr
> Issue Type: Sub-task
> Components: SolrCloud
> Reporter: Noble Paul
>
> In this mode SolrJ would not watch any ZK node
> It fetches the state on demand and cache the most recently used n
> collections in memory.
> SolrJ would not listen to any ZK node. When a request comes for a collection
> ‘xcoll’
> it would first check if such a collection exists
> If yes it first looks up the details in the local cache for that collection
> If not found in cache , it fetches the node /collections/xcoll/state.json and
> caches the information
> Any query/update will be sent with extra query param specifying the
> collection name , shard name, Role (Leader/Replica), and range (example
> \_target_=xcoll:shard1:L:80000000-b332ffff) . A node would throw an error
> (INVALID_NODE) if it does not the serve the collection/shard/Role/range combo.
> If SolrJ gets INVALID_NODE error it would invalidate the cache and fetch
> fresh state information for that collection (and caches it again).
--
This message was sent by Atlassian JIRA
(v6.1#6144)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
