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From "Samarth Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-4074) Race condition in LazyValueGetter
Date Tue, 08 Aug 2017 00:11:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-4074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Samarth Jain updated PHOENIX-4074:
----------------------------------
    Attachment: PHOENIX-4074.patch

[~jamestaylor], please review.

> Race condition in LazyValueGetter
> ---------------------------------
>
>                 Key: PHOENIX-4074
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4074
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Samarth Jain
>         Attachments: PHOENIX-4074.patch
>
>
> There is a race condition between acquiring the lock and the values map being initialized
here.
> {code}
> @Override
>   public ImmutableBytesWritable getLatestValue(ColumnReference ref) throws IOException
{
>     // ensure we have a backing map
>     if (values == null) {
>       synchronized (this) {
>         values = Collections.synchronizedMap(new HashMap<ColumnReference, ImmutableBytesWritable>());
>       }
>     }
> {code}



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