Discussion:
pg_xlog folder lost !
(too old to reply)
Rajesh Kumar Mallah
2004-06-15 10:15:51 UTC
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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.

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Bjoern Metzdorf
2004-06-15 10:32:28 UTC
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Post by Rajesh Kumar Mallah
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

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m***@trade-india.com
2004-06-15 11:08:00 UTC
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Post by Bjoern Metzdorf
Post by Rajesh Kumar Mallah
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
Post by Bjoern Metzdorf
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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Rajesh Kumar Mallah
2004-06-15 23:32:09 UTC
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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.
Post by m***@trade-india.com
Post by Bjoern Metzdorf
Post by Rajesh Kumar Mallah
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
Post by Bjoern Metzdorf
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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