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Date: Tue, 14 Apr 2009 07:13:14 -0700 (PDT)
From: "Jan Lehnardt (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
Subject: [jira] Commented: (COUCHDB-325) Memory Leak in 9.0?
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    [ https://issues.apache.org/jira/browse/COUCHDB-325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698780#action_12698780 ] 

Jan Lehnardt commented on COUCHDB-325:
--------------------------------------

Can you add some information about what exactly is eating the memory? Ruby or CouchDB?


> 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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