[jira] [Comment Edited] (OAK-6081) Indexing tooling via oak-run

["Chetan Mehrotra (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-6081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15994281#comment-15994281 ] 

Chetan Mehrotra edited comment on OAK-6081 at 7/17/17 5:58 AM:
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This tooling can be implemented in following phases

# v0 - Target here would be to have enable support for doing async indexing as is done currently via oak-run. In this phase we would not be changing indexing logic much but would just allow the async indexing run done via oak-run (/) as of Oak 1.7.0
# v1 - Indexer creates index files only on file system and in the end the files are copied to repo (/) see OAK-6246
# v2 - Support interruption i.e. if indexing gets killed in between it can start from last state
# v3 - multithreaded traversal


was (Author: chetanm):
This tooling can be implemented in following phases

# v0 - Target here would be to have enable support for doing async indexing as is done currently via oak-run. In this phase we would not be changing indexing logic much but would just allow the async indexing run done via oak-run (/) as of Oak 1.7.0
# v1 - Indexer creates index files only on file system and in the end the files are copied to repo
# v2 - Support interruption i.e. if indexing gets killed in between it can start from last state
# v3 - multithreaded traversal

> Indexing tooling via oak-run
> ----------------------------
>
>                 Key: OAK-6081
>                 URL: https://issues.apache.org/jira/browse/OAK-6081
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: indexing, run
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>             Fix For: 1.8
>
>
> To enable better management for indexing related operation specially around reindexing indexes on large repository setup we should implement some tooling as part of oak-run 
> The tool would support
> # *Resumable tarversal* - It should be able to reindex large repo with resumable traversal such that even if indexing breaks due to some issue it can resume from last state (OAK-5833)
> # *Multithreaded traversal* - Current indexing is single threaded and hence for large repo it can take long time. Plan here is to support multi threaded indexing where each thread can be assigned a part of repository tree to index and in the end the indexes are merged
> # For DocumentNodeStore setup it would be possible to connect oak-run to a live cluster and it would take care of indexing -> storing index on disk -> merging index ->  importing it back at end. This would ensure that live setup faces minimum disruption and is not loaded much
> # For SegementNodeStore setup it would be possible to index on a cloned setup and then provide  a way to copy the index back



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