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From "Noble Paul (JIRA)" <>
Subject [jira] Commented: (SOLR-1216) disambiguate the replication command names
Date Sat, 13 Jun 2009 04:53:07 GMT


Noble Paul commented on SOLR-1216:

bq.Lets also clearup the doc for this stuff as part of the issue....

yes the wiki has to be cleaned up too

bq.Are backups made in the same format as the scripts method

The format is same (same dir name format). The mechanism is different. scripts use hard links
, this uses copying

bq.Is it possible to replicate a backup or just the live index?

nope. only live index can be transferred. The backup can be made the live index and then the
user can replicate it. There is a file called in the dataDir (only created
by replicationhandler. but users can create them too ). It can take a property index=<dir-name>
which tells solr core where to load the index from. users can edit that and do a reload core
for the new backup to be used as the index.

bq.what happens when you shutdown during a replication - does Solr wait? Abort? If its aborts,
are the temp files cleaned up later?

replication is aborted. temp files will remain as is. They will not be cleaned up automatically.
But presence of those temp files will not have any impact of future replication. 

bq.replicate and polling both to default to on right?


bq.and the replicate setting just stops any slaves hitting a master with replicate=off from

the slaves will keep polling even if the master has disabled replication . But the master
will respond with "no changes" .This will ensure that when the replication is re-enabled from
master , the slaves will be able to resume replication 

> disambiguate the replication command names
> ------------------------------------------
>                 Key: SOLR-1216
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: replication (java)
>            Reporter: Noble Paul
>            Assignee: Noble Paul
>             Fix For: 1.4
> There is a lot of confusion in the naming of various commands such as snappull, snapshot
etc. This is a vestige of the script based replication we currently have. The commands can
be renamed to make more sense
> * 'snappull' to be renamed to 'sync'
> * 'snapshot' to be renamed to 'backup'
> thoughts?

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