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https://issues.apache.org/jira/browse/PHOENIX-3796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15973903#comment-15973903
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Rajeshbabu Chintaguntla commented on PHOENIX-3796:
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[~lhofhansl] [~jamestaylor] It's very bad bug. Sorry for this. Because mvcc 
blocking the local updates in postBatchMutate moved writing local index updates 
to postPut/Delete but missed to take care of writing once. So moving local 
index writes to postBatchMutateIndispensably hook makes very sense(After 
HBASE-15600 we don't need this at all). But completely moving index writes to 
postBatchMutateIndispensably won't make index data out of sync with actual data 
in case of parallel writes?

> LocalIndexes apply the entire batch for each mutation in a batch
> ----------------------------------------------------------------
>
>                 Key: PHOENIX-3796
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3796
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>         Attachments: 3796-4x.txt
>
>
> [~mujtabachohan] pointed out an "exponential" increase in update time in the 
> size of the batch.
> Indeed when I look at the code in Indexer.java I see that for each call to 
> postPut or postDelete we do insert the entire into the local index. (So for a 
> batch of size 10000 we'd make 10000 index updates 10000 times)
> [~rajeshbabu]



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