Thread: pg_xlog folder lost !

pg_xlog folder lost !

From
Rajesh Kumar Mallah
Date:
Hi,

The harddrive on which i had linked pg_xlog
has been lost. I have all other folders except that
which are in a seperate drive are present.

Can i get my data back using pg_resetxlog ?

Any Help will be greatly appreciated.


Regds
Mallah.

Re: pg_xlog folder lost !

From
Bjoern Metzdorf
Date:
Rajesh Kumar Mallah wrote:
>
> Hi,
>
> The harddrive on which i had linked pg_xlog
> has been lost. I have all other folders except that
> which are in a seperate drive are present.
>
> Can i get my data back using pg_resetxlog ?

Give it a try: create the xlog folder again and run pg_resetxlog.

Regards,
Bjoern

Re: pg_xlog folder lost !

From
Date:
> Rajesh Kumar Mallah wrote:
>>
>> Hi,
>>
>> The harddrive on which i had linked pg_xlog
>> has been lost. I have all other folders except that
>> which are in a seperate drive are present.
>>
>> Can i get my data back using pg_resetxlog ?
>
> Give it a try: create the xlog folder again and run pg_resetxlog.


Thanks. My hosting company is yet to bring the machine
up. I have tried this process in my local machine and it
works.

I think this process only gets the data till last checkpoint
reliably . I hope its correct.

Regds
Mallah


>
> Regards,
> Bjoern



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Re: pg_xlog folder lost !

From
Rajesh Kumar Mallah
Date:
I could start the postmaster after doing
pg_resetxlog .


The docs tell that a dump reload of the database should be done.
I am trying to do that by starting a new postmaster in a seprate port
and using pg_dumpall

while i do that i get some minor errors like

ALTER USER arvind SET search_path TO 'erp';
ERROR:  schema "erp" does not exist

and some ownership related errors like

SET SESSION AUTHORIZATION 'rt_user';
SET
........
........

CREATE INDEX attachments1 ON attachments USING btree (parent);
ERROR:  must be owner of relation attachments

Following are the grant sequence on table attachments
obtained by grepping the output

REVOKE ALL ON TABLE attachments FROM PUBLIC;
REVOKE ALL ON TABLE attachments FROM rt_user;
GRANT ALL ON TABLE attachments TO postgres WITH GRANT OPTION;
GRANT ALL ON TABLE attachments TO rt_user;

is it some bug with pg_dumpall/pg_dump ?

i am using 7.4.1 btw , shall now try with 7.4.3


Regds
Mallah.

mallah@trade-india.com wrote:

>>Rajesh Kumar Mallah wrote:
>>
>>
>>>Hi,
>>>
>>>The harddrive on which i had linked pg_xlog
>>>has been lost. I have all other folders except that
>>>which are in a seperate drive are present.
>>>
>>>Can i get my data back using pg_resetxlog ?
>>>
>>>
>>Give it a try: create the xlog folder again and run pg_resetxlog.
>>
>>
>
>
>Thanks. My hosting company is yet to bring the machine
>up. I have tried this process in my local machine and it
>works.
>
>I think this process only gets the data till last checkpoint
>reliably . I hope its correct.
>
>Regds
>Mallah
>
>
>
>
>>Regards,
>>Bjoern
>>
>>
>
>
>
>-----------------------------------------
>Over 1,00,000 exporters are waiting for your order! Click below to get
>in touch with leading Indian exporters listed in the premier
>trade directory Exporters Yellow Pages.
>http://www.trade-india.com/dyn/gdh/eyp/
>
>
>
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