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https://issues.apache.org/jira/browse/GORA-23?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henry Saputra closed GORA-23.
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Resolution: Fixed
Fix Version/s: 0.1-incubating
Fix by revision 1064026
> Limit result set in store reads
> -------------------------------
>
> Key: GORA-23
> URL: https://issues.apache.org/jira/browse/GORA-23
> Project: Gora
> Issue Type: Bug
> Components: storage
> Environment: MySQL
> Reporter: Alexis
> Fix For: 0.1-incubating
>
> Attachments: gora.patch, gora.patch, mapred-site.xml
>
>
> Once again, whatever the capacity of our system, we have a limited amount of
> RAM. Sooner or later, we will eventually run out of memory.
> Please refer to
> http://techvineyard.blogspot.com/2010/12/build-nutch-20.html#Gora for the
> description of the issue:
> When using MySQL as Gora backend, with the parse command, the execution hangs
> then crashes because it runs out of memory, because of this query:
> SELECT
> id,content,status,outlinks,baseUrl,typ,parseStatus,metadata,signature,markers
> FROM webpage;
> We are running exactly into the same issue that GORA-20. Except that we are
> not writing to the store, but reading it. Currently the code loads the entire
> webpage table into memory. We want to set a limit to the system call that
> pulls data from the database.
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