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https://issues.apache.org/jira/browse/ATLAS-5227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pinal Shah updated ATLAS-5227:
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Description:
_*Description:*_
This Jira is to support disabling the active index in janusgraph.
For Example : For ddl.queryText , isIndexable=true.
*This patch handles the support to make any attribute to isIndexable=false.*
_*Improvement to Disable unnecessary Indexes:*_
# *Write Latency* will drop significantly because JanusGraph no longer has to
create a secondary index entry for that massive string.
# *HBase Stability* will improve because we might stop hitting "Key Size
Limit" exceptions.
# *Storage Savings:* It will not create indexes
_*Limitation:*_
- graph search corresponding to this index will not be possible
_*Explanation:*_
To properly remove an index, we need to follow below updated in sequence
# *DISABLE_INDEX:* Sets state to {{{}DISABLED{}}}. The index is no longer used
for queries and stops receiving updates.
# *DISCARD_INDEX:* Removes all data from the index storage. The index state
becomes {{{}DISCARDED{}}}.
# *DROP_INDEX:* Removes the index definition from the JanusGraph schema
entirely.
But performing *DISCARD_INDEX* and *DROP_INDEX actions* can be too expensive
when there is huge indexed data. Hence this patch only handles *DISABLE_INDEX*
*_Acceptance Criteria:_*
- User functionality should remain unchanged
was:
*Description:*
This Jira is to support disabling the active index in janusgraph.
For Example : For ddl.queryText , isIndexable=true.
*This patch handles the support to make any attribute to isIndexable=false.*
*Improvement to Disable unnecessary Indexes:*
# *Write Latency* will drop significantly because JanusGraph no longer has to
create a secondary index entry for that massive string.
# *HBase Stability* will improve because we might stop hitting "Key Size
Limit" exceptions.
# *Storage Savings:* It will not create indexes
{*}Limitation:{*}{*}{{*}}
- graph search corresponding to this index will not be possible{*}{*}
*Explanation:*
To properly remove an index, we need to follow below updated in sequence
# *DISABLE_INDEX:* Sets state to {{{}DISABLED{}}}. The index is no longer used
for queries and stops receiving updates.
# *DISCARD_INDEX:* Removes all data from the index storage. The index state
becomes {{{}DISCARDED{}}}.
# *DROP_INDEX:* Removes the index definition from the JanusGraph schema
entirely.
But performing *DISCARD_INDEX* and *DROP_INDEX actions* can be too expensive
when there is huge indexed data. Hence this patch only handles *DISABLE_INDEX*
> Support disabling composite index
> ---------------------------------
>
> Key: ATLAS-5227
> URL: https://issues.apache.org/jira/browse/ATLAS-5227
> Project: Atlas
> Issue Type: Task
> Reporter: Pinal Shah
> Assignee: Pinal Shah
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> _*Description:*_
> This Jira is to support disabling the active index in janusgraph.
> For Example : For ddl.queryText , isIndexable=true.
> *This patch handles the support to make any attribute to isIndexable=false.*
> _*Improvement to Disable unnecessary Indexes:*_
> # *Write Latency* will drop significantly because JanusGraph no longer has
> to create a secondary index entry for that massive string.
> # *HBase Stability* will improve because we might stop hitting "Key Size
> Limit" exceptions.
> # *Storage Savings:* It will not create indexes
> _*Limitation:*_
> - graph search corresponding to this index will not be possible
> _*Explanation:*_
> To properly remove an index, we need to follow below updated in sequence
> # *DISABLE_INDEX:* Sets state to {{{}DISABLED{}}}. The index is no longer
> used for queries and stops receiving updates.
> # *DISCARD_INDEX:* Removes all data from the index storage. The index state
> becomes {{{}DISCARDED{}}}.
> # *DROP_INDEX:* Removes the index definition from the JanusGraph schema
> entirely.
> But performing *DISCARD_INDEX* and *DROP_INDEX actions* can be too expensive
> when there is huge indexed data. Hence this patch only handles
> *DISABLE_INDEX*
> *_Acceptance Criteria:_*
> - User functionality should remain unchanged
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