Sylvain,
About your issue,
So if you create and delete 50 000 records every night, it means that
every night you lose 50 * 12 = 600 kB of disk space , so for the 2
years it will be 600 * 365 = 420 Mb
I took 2 years because I think we come up with space reuse solution
till this time :-).
Is it noticeable for your application ?
On Mon, Jan 27, 2014 at 3:24 PM, Sylvain Spinelli
<[email protected] <mailto:[email protected]>> wrote:
For a customer, I have a use case where more than 50000 records
are deleted and re-created every night by batch. Not reuse RID can
be a problem here.
Ideally I think we should have a customizable interface
"RidFactory" with 3 default implementations : "never reuse",
"reuse immediately", "reuse later" (means reuse after a reasonable
delay, 1 day for example).
My 2 cents contribution ;)
Sylvain
Le 27/01/2014 13:14, Giraldo Rosales a écrit :
Ah. Ok. Saw your concerns. Will trust them.
I was thinking of something less durable like "votes" or "likes"
in a database. Let's say you get a couple thousand votes and then
start a new poll. That old, deleted, poll is just wasted RIDs.
On Jan 27, 2014 7:09 AM, "Andrey Lomakin"
<[email protected] <mailto:[email protected]>> wrote:
Giraldo,
It is controversial issues, there are doubts that rid reuse
will reduce ability to scale database also local storage will
be deprecated soon.
What is your problem with RID reuse ?
On Mon, Jan 27, 2014 at 1:45 PM, Giraldo Rosales
<[email protected] <mailto:[email protected]>> wrote:
Yes. I read this. Great documentation on plocal storage
but what about local storage? Does it handle deletions in
the same way? I couldn't find documentation on local
deletions.
I also saw a request in this discussion about adding a
setting to plocal to reuse RIDs. Was not sure if that
request was implemented. I know, as of the latest build,
local reuses and plocal doesn't. I was interested in
reusing RIDs in plocal.
Thanks!
On Jan 27, 2014 5:01 AM, "Andrey Lomakin"
<[email protected]
<mailto:[email protected]>> wrote:
Hi Giraldo,
Could you take a look here
https://github.com/orientechnologies/orientdb/wiki/plocal-storage-components#wiki-cluster
On Mon, Jan 27, 2014 at 8:27 AM, Giraldo Rosales
<[email protected] <mailto:[email protected]>> wrote:
Has there been an official update to the reuse
issue in plocal? Is there a setting to reuse an
RID in plocal without storing the deleted records
permanently? Also does local store in this way?
Reusing RIDs but storing the deleted records
permanently? Or does local reuse RIDs and keep
clean by removing deleted records?
Thanks!
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