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From "James Taylor (JIRA)" <>
Subject [jira] [Commented] (PHOENIX-4225) Using Google cache may lead to lock up on RS side.
Date Wed, 27 Sep 2017 16:25:00 GMT


James Taylor commented on PHOENIX-4225:

+1. Thanks, [~sergey.soldatov].

> Using Google cache may lead to lock up on RS side. 
> ---------------------------------------------------
>                 Key: PHOENIX-4225
>                 URL:
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Sergey Soldatov
>            Assignee: Sergey Soldatov
>             Fix For: 4.12.0
>         Attachments: PHOENIX-4225-1.patch
> On the server side we are using google cache with life time bounds. This is integrated
with GlobalMemoryManager which is used for almost all tasks that requires memory allocation.
The problem is that when the cache member get removed, it doesn't send remove notification
until next write/get operation happen. But in some cases once the large cache was removed
(but memory manager doesn't know that since it relies on the notification), we try to resend
it and memory manager get stuck waiting for free space, blocking all other operations with
the memory manager.

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