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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Closed: (DERBY-1372) Handle data overrun of DDMWriter buffer more efficiently
Date Fri, 02 Jun 2006 22:18:31 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1372?page=all ]
Kathey Marsden closed DERBY-1372:

> Handle data overrun of DDMWriter buffer more efficiently
> --------------------------------------------------------
>          Key: DERBY-1372
>          URL: http://issues.apache.org/jira/browse/DERBY-1372
>      Project: Derby
>         Type: Improvement

>   Components: Network Server, Performance
>     Versions:
>     Reporter: Kathey Marsden
>     Priority: Minor

> Currently if data writing overruns DDMWriter's 32K buffer, 
> Network server will allocate a twice as big buffer and copy the 
> data.    This could be made more efficient.
> One possibility is to keep a shared pool of buffers and chain them. This might also help
with general scalability of network server.
> When this is fixed, the code in writeQRYDTA to guestimate if we 
> have enough remaining room in the block can be removed.

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