[gsoc2011] Design and implement a distributed mailbox using Hadoop
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Key: MAILBOX-44
URL: https://issues.apache.org/jira/browse/MAILBOX-44
Project: James Mailbox
Issue Type: New Feature
Reporter: Eric Charles
Assignee: Norman Maurer
Context: The mailbox subproject (http://james.apache.org/mailbox/) supports
maildir, SQL database (via JPA) and Java Content Repository (JCR) as technology
for mail storage. This flexibility is achieved thanks to a API design that
abstracts mail storage from the mail protocols.
Task: We need to implement mailbox storage as a distributed system on top of
Hadoop HDFS. The James mailbox API will be used. A first step is to design how
to interact with Hadoop (native api, gora incubator at apache,...) and deal
with specific performance questions related to mail loading/parsing in a
distributed system (use map/reduce or not, use existing local lucene indexes
for search,...). The second step is to implement the HDFS mailbox (maildir
mailbox is similar because is stores mails as a file and can be an
inspiration). A single James server will still be deployed because we don't
have any distributed UID generation.
Mentor: eric at apache dot org
Complexity: medium
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