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Update Cassandra backup/restore scripts #3

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merged 1 commit into from
Apr 3, 2019
Merged

Update Cassandra backup/restore scripts #3

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2 changes: 1 addition & 1 deletion defaults/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,7 @@ cassandra_seed_groupname: cassandra_seed
cassandra_groupname: cassandra
cassandra_seeds: []
cassandra_seed_resolved: '{% if cassandra_seed_resolution == "static" %}{{ cassandra_seeds | join(",")}}{% else %}{% for host in groups[cassandra_seed_groupname] %}{{hostvars[host]["ansible_" + cassandra_network_interface]["ipv4"]["address"]}}{% if not loop.last %},{% endif %}{% endfor %}{% endif %}'
cassandra_all_instances: '{{ groups[cassandra_seed_groupname]|union(groups[cassandra_groupname])|reverse|list }}'
cassandra_all_instances: '{{ groups[cassandra_seed_groupname]|union(groups[cassandra_groupname]|default([]))|reverse|list }}'

# start cassandra immediately via systemd?
cassandra_activate: true
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12 changes: 5 additions & 7 deletions templates/cassandra_backup.j2
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Expand Up @@ -23,8 +23,6 @@ backup_base="{{ cassandra_env }}-{{ cassandra_role }}/${day_bucket}/${host}/${ti
empty_file=/tmp/empty
done_msg=BACKUP_DONE_SUCCESSFULLY

par=2

metrics_dir=/var/lib/node-exporter/textfile-collector
mkdir -p -m 777 $metrics_dir
metrics_file=${metrics_dir}/cassandra_backup.prom
Expand Down Expand Up @@ -78,12 +76,12 @@ function retry3 { $1 || $1 || $1; }
export -f retry3

# Upload to S3
for local_file in $base/*/*/$snaps/$sid/*; do
snapshot_subdir_removed=${local_file//$snaps\/$sid\/};
for snapshot_subdir in $base/*/*/$snaps/$sid/; do
snapshot_subdir_removed=${snapshot_subdir//$snaps\/$sid\/};
key_name=$backup_base${snapshot_subdir_removed#$base}
echo $bucket $key_name $local_file;
done | xargs -P$par -n3 bash -c \
'retry3 "aws s3 cp $3 s3://$1/$2 --expected-size $(stat --printf='%s' $3) --no-guess-mime-type" || (echo Upload failed! && exit 255)' -
echo $bucket $key_name $snapshot_subdir;
done | xargs -n3 bash -c \
'retry3 "aws s3 sync $3 s3://$1/$2 --no-guess-mime-type" || (echo Upload failed! && exit 255)' -

#################################
#### Mark remote as done #######
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10 changes: 7 additions & 3 deletions templates/cassandra_restore.j2
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Expand Up @@ -19,9 +19,13 @@ if [ -z ${SOURCE_HOSTNAME+x} ]; then echo "Set SOURCE_HOSTNAME to the node's hos
if [ -z ${SOURCE_BACKUP_DATE+x} ]; then echo "Set SOURCE_BACKUP_DATE to the backup date, in format YYYY-DD-MM"; exit 1; fi
if [ -z ${SOURCE_BACKUP_TIME+x} ]; then echo "Set SOURCE_BACKUP_TIME to the node's backup time, in format HH:MM:SS"; exit 1; fi

S3_BACKUP_PATH=/$SOURCE_ENV-$SOURCE_ROLE/$SOURCE_BACKUP_DATE/$SOURCE_HOSTNAME/$SOURCE_BACKUP_TIME
S3_BACKUP_PATH=$SOURCE_ENV-$SOURCE_ROLE/$SOURCE_BACKUP_DATE/$SOURCE_HOSTNAME/$SOURCE_BACKUP_TIME

aws s3 sync "s3://{{ cassandra_backup_s3_bucket }}/$S3_BACKUP_PATH/$CASSANDRA_KSP/$CASSANDRA_CF" "$TMP_WORKING_DIR"
mkdir -p $TMP_WORKING_DIR/$CASSANDRA_KSP/

"$SSTABLE_LOADER" -d "$CASSANDRA_HOST" -f "$CASSANDRA_YAML" "$TMP_WORKING_DIR/$S3_BACKUP_PATH/$CASSANDRA_KSP/$CASSANDRA_CF/"
aws s3 sync "s3://{{ cassandra_backup_s3_bucket }}/$S3_BACKUP_PATH/$CASSANDRA_KSP/" "$TMP_WORKING_DIR/$CASSANDRA_KSP/"

# Note: Folder names for cassandra 3.11 are composed of <column family>-<some hash>, the hash is unknown in advance (or is it?)
# Use `-*` bash extension to guess the hash part.
# Relies on the column family name not having a "-" in it
"$SSTABLE_LOADER" -d "$CASSANDRA_HOST" -f "$CASSANDRA_YAML" $TMP_WORKING_DIR/$CASSANDRA_KSP/$CASSANDRA_CF-*/