weekly_sync_shared_replica.sh #4

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#!/bin/bash
#------------------------------------------------------------------------------
# Copyright (c) Perforce Software, Inc., 2007-2014. All rights reserved
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1  Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PERFORCE
# SOFTWARE, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
#------------------------------------------------------------------------------

# Intended to be run on a replica machine to sync replica from its corresponding master
# Like sync_replica.sh but for use in a regular crontab
#
# NOTE!!!
# logs must not be a shared volume with this script.

source /p4/common/bin/backup_functions.sh

######### Start of Script ##########
check_vars
set_vars

LOGFILE=$LOGS/sync_replica.log

$P4BIN -u $P4USER -p ${SSL_PREFIX}${P4MASTER}:${P4MASTERPORTNUM} login < /p4/common/bin/adminpass > /dev/null 2>&1
JOURNALNUM=`$P4BIN -u $P4USER -p ${SSL_PREFIX}${P4MASTER}:${P4MASTERPORTNUM} counter journal`

if [[ "$JOURNALNUM" = "" ]]; then
   die "Error:  Couldn't get journal number from master.  Aborting."
fi

rotate_last_run_logs
log "Starting weekly_sync_shared_replica.sh"

recreate_weekly_offline_db_files
get_offline_journal_num
replay_journals_to_offline_db

/p4/common/bin/p4master_run $P4INSTANCE /p4/${P4INSTANCE}/bin/p4d_${P4INSTANCE}_init stop >> $LOGFILE 2>&1

# Sleep 10 seconds to give everything a chance to exit.
sleep 10

log "Server should be down now."
log "Moving offline db into root."
cd /p4/${P4INSTANCE}/root
rm -f save/db.* >> $LOGFILE 2>&1
mv db.* save >> $LOGFILE 2>&1
mv /p4/${P4INSTANCE}/offline_db/db.* . >> $LOGFILE 2>&1
rm -f state >> $LOGFILE 2>&1
rm -f rdb.lbr >> $LOGFILE 2>&1
rm -f /p4/$P4INSTANCE/logs/journal >> $LOGFILE 2>&1

$P4BIN -p ${SSL_PREFIX}${P4MASTER}:${P4MASTERPORTNUM} login < /p4/common/bin/adminpass
$P4BIN -p ${SSL_PREFIX}${P4MASTER}:${P4MASTERPORTNUM} login $P4SERVICEUSER
/p4/common/bin/p4master_run $P4INSTANCE /p4/${P4INSTANCE}/bin/p4d_${P4INSTANCE}_init start >> $LOGFILE 2>&1

log "Server should be back up now."

$P4BIN -p ${SSL_PREFIX}${P4MASTERPORTNUM} login < /p4/common/bin/adminpass
$P4BIN -p ${SSL_PREFIX}${P4MASTERPORTNUM} pull -lj >> $LOGFILE

recreate_weekly_offline_db_files
get_offline_journal_num
replay_journals_to_offline_db

check_disk_space
remove_old_logs
$P4BIN -p ${SSL_PREFIX}${P4MASTERPORTNUM} pull -lj >> $LOGFILE

log "End $P4SERVER Checkpoint"
mail_log_file "$HOSTNAME $P4SERVER Weekly sync shared replica log."
# Change User Description Committed
#10 15701 C. Thomas Tyler Routine merge down using 'p4 merge -b perforce_software-sdp-dev'.
#9 15374 adrian_waters - Ensure backup scripts are run as the OSUSER (to prevent accidental running as root); 
- in scripts where LOGFILE value is changed from the 'checkpoint.log'  set by set_vars, ensure the new assignment is before check_dirs is called, otherwise errors could be written to the 'wrong' log
- in 'die()' - detect if running from terminal & also send output to stderr
#8 13906 C. Thomas Tyler Normalized P4INSTANCE to SDP_INSTANCE to get Unix/Windows
implementations in sync.

Reasons:
1. Things that interact with SDP in both Unix and Windows
environments shoudn't have to account for this obscure
SDP difference between Unix and Windows.  (I came across
this doing CBD work).

2. The Windows and Unix scripts have different variable
names for defining the same concept, the SDP instance.
Unix uses P4INSTANCE, while Windows uses SDP_INSTANCE.

3. This instance tag, a data set identifier, is an SDP concept.
I prefer the SDP_INSTANCE name over P4INSTANCE, so I prpose
to normalize to SDP_INSTANCE.

4. The P4INSTANCE name makes it look like a setting that might be
recognized by the p4d itself, which it is not.  (There are other
such things such as P4SERVER that could perhaps be renamed as
a separate task; but I'm not sure we want to totally disallow
the P4 prefix for variable names. It looks too right to be wrong
in same cases, like P4BIN and P4DBIN.  That's a discussion for
another day, outside the scope of this task).

Meanwhile:
* Fixed a bug in the Windows 2013.3 upgrade script that
was referencing undefined P4INSTANCE, as the Windows
environment defined only SDP_INSTANCE.

* Had P4INSTANCE been removed completely, this change would
likely cause trouble for users doing updates for existing
SDP installations.  So, though it involves slight technical debt,
I opted to keep a redundant definition of P4INSTANCE
in p4_vars.template, with comments indicating SDP_INSTANCE should be
used in favor of P4INSTANCE, with a warning that P4INSTANCE
may go away in a future release.  This should avoid unnecessary
upgrade pain.

* In mkdirs.sh, the varialbe name was INSTANCE rather than
SDP_INSTANCE.  I changed that as well.  That required manual
change rather than sub/replace to avoid corrupting other similar
varialbe names (e.g.  MASTERINSTANCE).

This is a trivial change technically (a substitute/replace, plus
tweaks in p4_vars.template), but impacts many files.
#7 13904 C. Thomas Tyler Routine merge down to dev from main.
#6 12169 Russell C. Jackson (Rusty) Updated copyright date to 2015

 Updated shell scripts to require an instance parameter to eliminate the need
 for calling p4master_run.    Python and Perl still need it since you have to set the
environment for them to run in.

 Incorporated comments from reviewers. Left the . instead of source as that seems
more common in the field and has the same functionality.
#5 12107 C. Thomas Tyler Routine merge down from 'main' to 'dev', resolved with
'p4 resolve -as'.
#4 12028 C. Thomas Tyler Refreshed SDP dev branch, merging down from main.
#3 11523 Russell C. Jackson (Rusty) Modified P4BROKERPORTNUM to just be the port number and added P4BROKERPORT to instance_vars
 to be consistent with P4PORT. Also makes it easier to modify p4review.py to use P4BROKERPORT
 rather than P4PORT for the subject line when needed.
#2 11511 Russell C. Jackson (Rusty) Correct log name.
#1 11509 Russell C. Jackson (Rusty) Added sync_replica.log to backup function log rotations, and added rm on existing
 gzipped logs with the same name in order to keep the script from hanging waiting
 for a response to overwrite.

 Added sync_shared_replica.sh and weekly_sync_shared_replica.sh to support replicas
with shared depotdata storage. No rsync is necessary. The logs volume must not be
a shared volume with these scripts though.