recover_edge.sh #1

#!/bin/bash
#==============================================================================
# Copyright and license info is available in the LICENSE file included with
# the Server Deployment Package (SDP), and also available online:
# https://swarm.workshop.perforce.com/projects/perforce-software-sdp/view/main/LICENSE
#------------------------------------------------------------------------------

# This script is designed to rebuild an Edge server from a checkpoint of the master WHILE
# KEEPING THE EXISTING EDGE SPECIFIC DATA.
# You have to first copy the checkpoint from the master to the edge server before running this script.
# Then you run this script on the Edge server with the instance number and full path and filename
# of the master checkpoint as parameters.
#
# Run example:
#  ./recover_edge.sh 1 /depotdata/p4_1.ckp.9188.gz
 
if [[ "$1" == "" ]]; then
   echo You must pass in the instance number/ID as the first parameter to this script.
   exit 1
fi

if [[ "$2" == "" ]]; then
   echo You must pass in the full path and filename of the checkpoint you copied over from the master server.
   exit 2
fi

INSTANCE=$1
MASTERCKP=$2

rm -f /p4/${INSTANCE}/offline_db/db.*

# With -K we filter out the various Edge-specific tables which will be replaced with 
# current live versions.
EXCLUDED_TABLES=db.have,db.working,db.resolve,db.locks,db.revsh,db.workingx,db.resolvex

/p4/${INSTANCE}/bin/p4d_${INSTANCE} -r /p4/${INSTANCE}/offline_db/ -K $EXCLUDED_TABLES -jr -z $MASTERCKP

/p4/${INSTANCE}/bin/p4d_${INSTANCE}_init stop

# With -k we filter and only checkpoint the specified tables from the current live Edge DB.
CKP_TABLES=$EXCLUDED_TABLES,db.view,db.label,db.revsx,db.revux

/p4/${INSTANCE}/bin/p4d_${INSTANCE} -r /p4/${INSTANCE}/root/ -k $CKP_TABLES -jd /p4/${INSTANCE}/checkpoints/edgedump

# And apply those tables to the recreate offline_db
/p4/${INSTANCE}/bin/p4d_${INSTANCE} -r /p4/${INSTANCE}/offline_db -jr /p4/${INSTANCE}/checkpoints/edgedump

# Reset the various replication state files
rm -f /p4/${INSTANCE}/root/db.*
rm -f /p4/${INSTANCE}/root/state
rm -f /p4/${INSTANCE}/root/rdb.lbr
rm -f /p4/${INSTANCE}/logs/journal

# Should we remove root/db.*???
mv /p4/${INSTANCE}/offline_db/db.* /p4/${INSTANCE}/root/

/p4/${INSTANCE}/bin/p4d_${INSTANCE}_init start

# Recreate the offline_db as previously
/p4/${INSTANCE}/bin/p4d_${INSTANCE} -r /p4/${INSTANCE}/offline_db/ -K $EXCLUDED_TABLES -jr -z $MASTERCKP
/p4/${INSTANCE}/bin/p4d_${INSTANCE} -r /p4/${INSTANCE}/offline_db -jr /p4/${INSTANCE}/checkpoints/edgedump

# Checkpoint offline_db for posterity
/p4/${INSTANCE}/bin/p4d_${INSTANCE} -r /p4/${INSTANCE}/offline_db -jd -z /p4/${INSTANCE}/checkpoints/rebuilt_edge_dump.gz

# Inform the user about follow up tasks
echo Rebuilt checkpoint is: /p4/${INSTANCE}/checkpoints/rebuilt_edge_dump.gz
echo If you run this script the night before a weekly_backup.sh is going to run, 
echo you need to delete the highest numbered checkpoint in /p4/${INSTANCE}/checkpoints
echo and rename /p4/${INSTANCE}/checkpoints/rebuilt_edge_dump.gz to replace that file.