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From "Thomas D'Silva (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (PHOENIX-5018) Index mutations created by UPSERT SELECT will have wrong timestamps
Date Thu, 30 May 2019 18:41:08 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-5018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thomas D'Silva closed PHOENIX-5018.
-----------------------------------

Bulk closing jiras for the 4.14.2 relase.

> Index mutations created by UPSERT SELECT will have wrong timestamps
> -------------------------------------------------------------------
>
>                 Key: PHOENIX-5018
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5018
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.14.0, 5.0.0
>            Reporter: Geoffrey Jacoby
>            Assignee: Kadir OZDEMIR
>            Priority: Major
>             Fix For: 4.15.0, 5.1.0, 4.14.2, 5.0.1
>
>         Attachments: PHOENIX-5018.4.x-HBase-1.3.001.patch, PHOENIX-5018.4.x-HBase-1.3.002.patch,
PHOENIX-5018.4.x-HBase-1.4.001.patch, PHOENIX-5018.4.x-HBase-1.4.002.patch, PHOENIX-5018.master.001.patch,
PHOENIX-5018.master.002.patch, PHOENIX-5018.master.003.patch, PHOENIX-5018.master.004.patch
>
>          Time Spent: 5h 40m
>  Remaining Estimate: 0h
>
> When doing a full rebuild (or initial async build) of a local or global index using IndexTool
and PhoenixIndexImportDirectMapper, or doing a synchronous initial build of a global index
using the index create DDL, we generate the index mutations by using an UPSERT SELECT query
from the base table to the index.
> The timestamps of the mutations use the default HBase behavior, which is to take the
current wall clock. However, the timestamp of an index KeyValue should use the timestamp of
the initial KeyValue in the base table.
> Having base table and index timestamps out of sync can cause all sorts of weird side
effects, such as if the base table has data with an expired TTL that isn't expired in the
index yet. Also inserting old mutations with new timestamps may overwrite the data that has
been newly overwritten by the regular data path during index build, which would lead to data
loss and inconsistency issues.



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