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Date: Tue, 14 Apr 2009 06:49:14 -0700 (PDT)
From: "Rohit Amarnath (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
Subject: [jira] Created: (COUCHDB-325) Memory Leak in 9.0?
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Memory Leak in 9.0?
-------------------

                 Key: COUCHDB-325
                 URL: https://issues.apache.org/jira/browse/COUCHDB-325
             Project: CouchDB
          Issue Type: Bug
    Affects Versions: 0.9
         Environment: gentoo linux on c1.medium aws instance
            Reporter: Rohit Amarnath
            Priority: Minor
             Fix For: 0.9


I am using couchrest to transform a document from one database to another (millions of records). The memory usage continues to increase till all the memory is used. The process occasionally fails, but usually completes. I dont know enough about ruby/couchrest/couchdb to be able to tell you where the memory is increasing from - but  if you give me some direction, I will be happy to take a look. 

If I comment out the save, it seems ok. 

Here is the code:

--------------------------------

require 'rubygems'
require 'couchrest'

@db = CouchRest.database!("http://127.0.0.1:5984/xfpds_2008")
@db2 = CouchRest.database!("http://127.0.0.1:5984/fpds_2008")


@streamer = CouchRest::Streamer.new(@db)
@streamer.view("_all_docs") do |row|
begin

doc = @db.get(row["id"])

# remove id so the new database gets fresh document
doc.delete("_id")
doc.delete("_rev")

# change badgerfish notation to assign $ key value to parent
doc["amounts"]["obligatedAmount"] =  doc["amounts"]["obligatedAmount"]["$"]
doc["amounts"]["baseAndAllOptionsValue"] =  doc["amounts"]["baseAndAllOptionsValue"]["$"]
doc["amounts"]["baseAndExercisedOptionsValue"] =  doc["amounts"]["baseAndExercisedOptionsValue"]["$"]

...... A whole bunch of fields

# save the document using bulk save
response =  @db2.save_doc(doc,true)

rescue
  # if streamer ends, save last few documents
  @db2.bulk_save
end


end


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