Hi List;
I'm setting up a warm standby server on version 8.1.9
I setup a recovery.sh script to keep the standby cluster in recovery
mode waiting for the next WAL segment. everything works fine as long
as the standby server is in recovery mode. I see the recovery taking
place in the postgres log of the standby server. I've set it up to
exit the recovery.sh script if it see's a trigger file (to bring the
standby online).
when I create the trigger file I see this:
copy /home/postgres/healthCareCoding/WAL/000000010000000000000004
pg_xlog/RECOVERYXLOG
`/home/postgres/healthCareCoding/WAL/000000010000000000000004' ->
`pg_xlog/RECOVERYXLOG'
LOG: restored log file "000000010000000000000004" from archive
LOG: could not open file "pg_xlog/000000010000000000000005" (log file
0, segment 5): No such file or directory
LOG: redo done at 0/4FFFE90
PANIC: could not open file "pg_xlog/000000010000000000000004" (log
file 0, segment 4): No such file or directory
LOG: startup process (PID 9348) was terminated by signal 6
LOG: aborting startup due to startup process failure
LOG: logger shutting down
I see that the log 000000010000000000000004 was restored, but then
when it tags the redo as done it complains that it cannot find the
same log.
If I re-start the standby cluster and select count(*) from my test
table (the table I'm inserting data into to fill the logs) I get this:
postgres=# select count(*) from t1 ;
ERROR: xlog flush request 0/113730C is not satisfied --- flushed only
to 0/1135018
CONTEXT: writing block 1500 of relation 1663/10819/16384
postgres=#
My recovery.sh code is below, thanks in advance for any help...
/Kevin
#!/bin/bash
#DELAY=400000
DELAY=100
SEG_SIZE=16777216
TRIGGERED=0
TRIGGER_FILE="/home/postgres/healthCareCoding/trigger"
WAL_PATH="/home/postgres/healthCareCoding/WAL"
COPY_FLAG=0
RESTORE_FROM="${WAL_PATH}/$2"
RESTORE_TO=$1
echo "$1" | grep -i history
if [ $? -eq 0 ]
then
if [ -f "$RESTORE_FROM" ]
then
echo "copy $RESTORE_FROM $RESTORE_TO"
cp -v -i $RESTORE_FROM $RESTORE_TO
fi
exit
fi
while [ ! -f "$TRIGGER_FILE" -a $COPY_FLAG -eq 0 ]
do
usleep $DELAY;
if [ -f "$RESTORE_FROM" ]
then
fs=`ls -l $RESTORE_FROM`
set - $fs
echo "size= [$5]"
if [ "$5" == "$SEG_SIZE" ]
then
COPY_FLAG=1
fi
fi
done
if [ -f "$TRIGGER_FILE" ]
then
exit
fi
if [ ! -f "$TRIGGER_FILE" ]
then
echo "copy $RESTORE_FROM $RESTORE_TO"
cp -v -i $RESTORE_FROM $RESTORE_TO
exit
fi
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