[jira] [Assigned] (PHOENIX-4074) Race condition in LazyValueGetter

["James Taylor (JIRA)" <ji...@apache.org>]

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

James Taylor reassigned PHOENIX-4074:
-------------------------------------

    Assignee: Samarth Jain

> Race condition in LazyValueGetter
> ---------------------------------
>
>                 Key: PHOENIX-4074
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4074
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Samarth Jain
>            Assignee: Samarth Jain
>             Fix For: 4.12.0
>
>         Attachments: PHOENIX-4074.patch, PHOENIX-4074_v2.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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