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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Updated] (HIVE-11915) BoneCP returns closed connections from the pool
Date Tue, 29 Sep 2015 21:14:05 GMT


Sergey Shelukhin updated HIVE-11915:
    Attachment: HIVE-11915.02.patch

Updated the patch; fixed the log, moved the retry logic closer to the code.
I disagree about extra retries just-in-case - that's what retrying object store and ms client
do, and 90% of the cases when I see these (and 100% for the former) is when it blindly retries
for some non-recoverable exceptions.
DBCP has been around for a while and doesn't merit doing things just in case, esp. if there's
no way to tell what is recoverable... at least with BONECP we know what we are trying to fix.

> BoneCP returns closed connections from the pool
> -----------------------------------------------
>                 Key: HIVE-11915
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Takahiko Saito
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-11915.01.patch, HIVE-11915.02.patch, HIVE-11915.WIP.patch,
> It's a very old bug in BoneCP and it will never be fixed... There are multiple workarounds
on the internet but according to responses they are all unreliable. We should upgrade to HikariCP
(which in turn is only supported by DN 4), meanwhile try some shamanic rituals. In this JIRA
we will try a relatively weak drum.

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