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What are the ".index" files - can I safely delete them? [message #1137475]

Mon, 14 October 2013 14:16

Palmer Eldritch

Messages: 40
Registered: February 2011

Member

Trying to reduce the size of my (DB synced) workspace - realized that the folder

${workspace_loc}\.metadata\.plugins\org.eclipse.jdt.core

was taking ~35 Mbytes - the contents of the folder are `.index` files (which take the most space) and some others (which are a couple Kb worth) :

    [0-9]*\.index
    externalLibsTimeStamps
    indexNamesMap.txt
    invalidArchivesCache
    javaLikeNames.txt
    nonChainingJarsCache
    participantsIndexNames.txt
    savedIndexNames.txt
    variablesAndContainers.dat

I can't seem to be able to find docs on those. Can I safely delete them ? Can you point me to some docs on the JDT plugin folders/files contained in

${workspace_location}\.metadata\

directory ?
Is there any way via the gui to clean up the caches (preferably periodically) ?

PS : I 'm on Kepler if this makes a difference
PS2 : links to docs may be links to code comments and such

eclipse-kepler JEE
Win7 x64

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Re: What are the ".index" files - can I safely delete them? [message #1137589 is a reply to message #1137475]

Mon, 14 October 2013 15:51

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

The index-files is where JDT stores informations need to do content
assist, ... , if you delete them they'll get recreated IIRC because you
really need them!

Tom

On 14.10.13 16:17, Palmer Eldritch wrote:
> Trying to reduce the size of my (DB synced) workspace - realized that
> the folder
> ${workspace_loc}\.metadata\.plugins\org.eclipse.jdt.core
> was taking ~35 Mbytes - the contents of the folder are `.index` files
> (which take the most space) and some others (which are a couple Kb worth) :
>
> [0-9]*\.index
> externalLibsTimeStamps
> indexNamesMap.txt
> invalidArchivesCache
> javaLikeNames.txt
> nonChainingJarsCache
> participantsIndexNames.txt
> savedIndexNames.txt
> variablesAndContainers.dat
> I can't seem to be able to find docs on those. Can I safely delete them
> ? Can you point me to some docs on the JDT plugin folders/files
> contained in ${workspace_location}\.metadata\ directory ? Is there any
> way via the gui to clean up the caches (preferably periodically) ?
>
> PS : I 'm on Kepler if this makes a difference
> PS2 : links to docs may be links to code comments and such

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Re: What are the ".index" files - can I safely delete them? [message #1137651 is a reply to message #1137589]

Mon, 14 October 2013 16:41

David Wegener

Messages: 1445
Registered: July 2009

Senior Member

As has been pointed out in another thread. Don't sync workspaces. Sync your projects. Syncing projects uses much less space and is how the product is designed.

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