"MySQL Server as gone away" error harvesting some collections

[mickeroo]

Selected archive: University of Washington Libraries Digital Collections
Fetching records...
Harvest URL: http://content.lib.washington.edu/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=cobb
Harvest URL: http://content.lib.washington.edu/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=grandcoulee
Harvest URL: http://content.lib.washington.edu/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=ww-swps
Harvest URL: http://content.lib.washington.edu/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=tollcan
Harvest URL: http://content.lib.washington.edu/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=ww-text
<h1>DB Error: MySQL server has gone away</h1>harvester2: DB Error: MySQL server has gone away

When the error occurs, the harvest terminates for that archive and the index is not updated.

Also occurs for:

Selected archive: Oregon Digital
Fetching records...
Harvest URL: http://oregondigital.org/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=corflood64
Harvest URL: http://oregondigital.org/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=streamsurve
Harvest URL: http://oregondigital.org/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=wwdl
harvester2: DB Error: MySQL server has gone away
<h1>DB Error: MySQL server has gone away</h1>