Обсуждение: Help with database recovery ...
My database crashed and server won't start ... ------------------------------------------------------ LOG: database system was interrupted while in recovery at 2011-05-01 19:31:37 CEST HINT: This probably means that some data is corrupted and you will have to use the last backup for recovery. LOG: checkpoint record is at 2/D41C1350 LOG: redo record is at 2/D41C1350; undo record is at 0/0; shutdown FALSE LOG: next transaction ID: 752151177; next OID: 50716 LOG: next MultiXactId: 1; next MultiXactOffset: 0 LOG: database system was not properly shut down; automatic recovery in progress LOG: redo starts at 2/D41C1394 PANIC: could not access status of transaction 752150401 DETAIL: could not read from file "pg_clog/02CD" at offset 73728: Success LOG: startup process (PID 3504) was terminated by signal 6 LOG: aborting startup due to startup process failure LOG: logger shutting down --------------------------------------------------------------- What can I do ? [root@pg_log]# postgres --version postgres (PostgreSQL) 8.1.18 OS is Centos. Any hint ?
On 02/05/11 03:32, Iztok Stotl wrote: > My database crashed and server won't start ... > > ------------------------------------------------------ > LOG: database system was interrupted while in recovery at 2011-05-01 > 19:31:37 CEST > HINT: This probably means that some data is corrupted and you will have > to use the last backup for recovery. > LOG: checkpoint record is at 2/D41C1350 > LOG: redo record is at 2/D41C1350; undo record is at 0/0; shutdown > FALSE > LOG: next transaction ID: 752151177; next OID: 50716 > LOG: next MultiXactId: 1; next MultiXactOffset: 0 > LOG: database system was not properly shut down; automatic recovery in > progress > LOG: redo starts at 2/D41C1394 > PANIC: could not access status of transaction 752150401 > DETAIL: could not read from file "pg_clog/02CD" at offset 73728: > Success > LOG: startup process (PID 3504) was terminated by signal 6 > LOG: aborting startup due to startup process failure > LOG: logger shutting down > --------------------------------------------------------------- > What can I do ? This shouldn't happen unless something broke badly on your system. Check your disks and file systems. Before trying to fix anything, make a complete copy of the entire postgresql directory, the one that contains the 'pg_xlog', 'pg_clog' folders etc. Store that copy on a removable hard drive or some other media that's not connected to the system you're recovering. This message is very weird: "could not read from file "pg_clog/02CD" at offset 73728: Success". What does 'ls -l pg_clog/' say? -- Craig Ringer
Craig Ringer <craig@postnewspapers.com.au> writes:
> This message is very weird: "could not read from file "pg_clog/02CD" at
> offset 73728: Success".
Probably indicates an attempted read from beyond EOF. The main
relation-access code paths have been fixed to give a more intelligible
error message about that case, but it doesn't look like slru.c has been.
regards, tom lane
On Tue, 2011-05-03 at 01:14 -0400, Tom Lane wrote: > Craig Ringer <craig@postnewspapers.com.au> writes: > > This message is very weird: "could not read from file "pg_clog/02CD" at > > offset 73728: Success". > > Probably indicates an attempted read from beyond EOF. The main > relation-access code paths have been fixed to give a more intelligible > error message about that case, but it doesn't look like slru.c has been. I gave up. I formated the disc ;) Next time ... backup more often ... Thank you guys for your answers. Iztok