[
https://issues.apache.org/jira/browse/BLUR-220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aaron McCurry updated BLUR-220:
-------------------------------
Attachment: MergeDeltaIndex.java
MaskedAtomicReader.java
blur_partial_update_v2.csv
I have been working on this task for bulk ingest of partial Rows. Above is an
implementation of performing a sorted merge of Row parts and adding the result
to the main index. This would be like the current index importer adding in a
new segment of Rows to the shard.
I have also appending some results of timing between performing the merge and
just reading and re-indexing the partial Rows.
> Support for humongous Rows
> --------------------------
>
> Key: BLUR-220
> URL: https://issues.apache.org/jira/browse/BLUR-220
> Project: Apache Blur
> Issue Type: Improvement
> Components: Blur
> Affects Versions: 0.3.0
> Reporter: Aaron McCurry
> Fix For: 0.3.0
>
> Attachments: Blur_Query_Perf_Chart1.pdf, CreateIndex.java,
> CreateIndex.java, CreateSortedIndex.java, FullRowReindexing.java,
> MaskedAtomicReader.java, MergeDeltaIndex.java,
> MyEarlyTerminatingCollector.java, SlabAllocator.java, SlabRAMDirectory.java,
> SlabRAMFile.java, SlabRAMInputStream.java, SlabRAMOutputStream.java,
> TestSearch.java, TestSearch.java, blur_partial_update_v2.csv, test_results.txt
>
>
> One of the limitations of Blur is size of Rows stored, specifically the
> number of Records. The current updates are performed on Lucene is by
> deleting the document and re-adding to the index. Unfortunately when any
> update is perform on a Row in Blur, the entire Row has to be re-read (if the
> RowMutationType is UPDATE_ROW) and then whatever modification needs are made
> then it is reindexed in it's entirety.
> Due to all of this overhead, there is a realistic limit on the size of a
> given Row. It may vary based the kind of hardware that is being used, as the
> Row grows in size the indexing (mutations) against that Row will slow.
> This issue is being created to discuss techniques on how to deal with this
> problem.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
