The restore process reads the backup created by arangodump and sends the
collection data back to the server.
Creating collections with names that start with an underscore (such as
"_aqlfunctions") is normally disallowed, except when the "isSystem"
attribute is set in addition).
It seems that in 3.0 the attribute "isSystem" is not dumped by arangodump
when creating the backup. That's why the server rejects creating the
collection.
I fixed this in commit 00985a7cb188fd08ca63b2276026be90677ad149. The fix
will be included in 3.0.2.
A temporary workaround until 3.0.2 is to edit the structure JSON files
produced by arangodump and add the "isSystem" attribute manually for
collections whose names start with an underscore.
For example, I have got the file
_aqlfunctions_8293af7a2caabc3098bc21db7ce2759d.structure.json with the
following content:
{"indexes":[],"parameters":{"cid":"19492516","count":0,"deleted":false,"doCompact":true,"indexBuckets":8,"isVolatile":false,"maximalSize":1048576,"name":"_aqlfunctions","type":2,"version":5,"waitForSync":false}}
changing it to the following should make the restore happy:
{"indexes":[],"parameters":{"cid":"19492516","count":0,"deleted":false,"doCompact":true,"indexBuckets":8,"isVolatile":false,"maximalSize":1048576,"name":"_aqlfunctions","type":2,"version":5,"waitForSync":false,"isSystem":true}}
Best regards
Jan
Am Dienstag, 5. Juli 2016 14:46:56 UTC+2 schrieb Christoph Engel:
>
> Hi,
>
> I have installed Arangodb 3.0.1 and I would like to restore my backup form
> Arangodb 2.8 including the system collections with custom AQL functions.
> But from arangorestore I get the following response:
>
> Server version: 3.0.1
> # Connected to ArangoDB 'http+tcp://127.0.0.1:8529'
> # Re-creating document collection '_aqlfunctions'...
> 2016-07-05T12:29:10Z [72379] ERROR got error from server: HTTP 500 (
> Internal Server Error): ArangoError 1208: illegal name
> Processed 0 collection(s), read 0 byte(s) from datafiles, sent 0 batch(es)
>
> Without the param "--include-system-collections true" arangorestore seems
> to work fine.
> Is there a way to restore the system collections (especially the custom
> AQL functions) in Arangodb 3?
>
> Regards,
> Christoph
>
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