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Posted to dev@bookkeeper.apache.org by "Ivan Kelly (JIRA)" <ji...@apache.org> on 2012/04/25 12:28:03 UTC

[jira] [Created] (BOOKKEEPER-223) PendingReadOp tries to read all entries at once

Ivan Kelly created BOOKKEEPER-223:
-------------------------------------

             Summary: PendingReadOp tries to read all entries at once
                 Key: BOOKKEEPER-223
                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-223
             Project: Bookkeeper
          Issue Type: Bug
            Reporter: Ivan Kelly
            Assignee: Ivan Kelly
             Fix For: 4.2.0


PendingReadOp tries to read all entries from the bookie ensemble at once, and fill an enumeration with what comes back. This is bad. If we have a ledger with millions of entries, and you try to read the whole thing, you're client will crap out. Of course you can get around this by only requesting a little bit at a time, but why doesn't the client do this for you, as we are effectively exposing a iterator interface anyhow?

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[jira] [Updated] (BOOKKEEPER-223) PendingReadOp tries to read all entries at once

Posted by "Ivan Kelly (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/BOOKKEEPER-223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ivan Kelly updated BOOKKEEPER-223:
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    Fix Version/s:     (was: 4.2.0)
                   4.3.0
    
> PendingReadOp tries to read all entries at once
> -----------------------------------------------
>
>                 Key: BOOKKEEPER-223
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-223
>             Project: Bookkeeper
>          Issue Type: Bug
>            Reporter: Ivan Kelly
>            Assignee: Ivan Kelly
>             Fix For: 4.3.0
>
>
> PendingReadOp tries to read all entries from the bookie ensemble at once, and fill an enumeration with what comes back. This is bad. If we have a ledger with millions of entries, and you try to read the whole thing, you're client will crap out. Of course you can get around this by only requesting a little bit at a time, but why doesn't the client do this for you, as we are effectively exposing a iterator interface anyhow?

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