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Improve automatic Snap upgrades.
Thanks to xet7 !
This commit is contained in:
Lauri Ojansivu
parent
d64aeb25d5
commit
aab671398c
3 changed files with 570 additions and 8 deletions
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@ -77,6 +77,11 @@ log_success() {
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log_message "SUCCESS: $message"
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}
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log_warning() {
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local message="$1"
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log_message "WARNING: $message"
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}
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# Disk space checking functions
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check_disk_space() {
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local required_space_gb="$1"
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@ -222,6 +227,28 @@ check_migration_needed() {
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return 1
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}
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# Display MongoDB log content for debugging
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display_mongodb_log_content() {
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local mongodb_log="${SNAP_COMMON}/mongodb.log"
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if [ ! -f "$mongodb_log" ]; then
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log_message "MongoDB log file not found: $mongodb_log"
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return 1
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fi
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log_message "MongoDB log file content (last 50 lines):"
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if [ -r "$mongodb_log" ]; then
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tail -50 "$mongodb_log" | while read -r line; do
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log_message "LOG: $line"
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done
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else
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log_message "MongoDB log file not readable, trying with sudo"
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sudo tail -50 "$mongodb_log" 2>/dev/null | while read -r line; do
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log_message "LOG: $line"
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done
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fi
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}
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# Detect if MongoDB upgrade is needed by checking log file
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detect_mongodb_upgrade_needed() {
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local mongodb_log="${SNAP_COMMON}/mongodb.log"
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@ -232,20 +259,168 @@ detect_mongodb_upgrade_needed() {
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return 1
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fi
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# Check for the specific error message indicating upgrade is needed
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if grep -q "This version of MongoDB is too recent to start up on the existing data files. Try MongoDB 4.2 or earlier." "$mongodb_log"; then
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log_message "MongoDB upgrade needed detected in log file"
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# Display log content for debugging
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display_mongodb_log_content
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# Check file permissions and try to read with appropriate method
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if [ ! -r "$mongodb_log" ]; then
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log_message "MongoDB log file not readable, trying with sudo"
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# Try to read with sudo if not readable
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if ! sudo grep -q "too recent to start up on the existing data files" "$mongodb_log" 2>/dev/null; then
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log_message "No MongoDB upgrade needed detected in log file (via sudo)"
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return 1
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fi
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else
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# Check for various error messages that indicate upgrade is needed
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# The exact message may vary between MongoDB versions
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local upgrade_patterns=(
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"This version of MongoDB is too recent to start up on the existing data files"
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"too recent to start up on the existing data files"
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"Try MongoDB 4.2 or earlier"
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"unsupported format version"
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"data files are incompatible"
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"database files are incompatible"
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"version too new"
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"version too recent"
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)
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local found_upgrade_needed=false
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for pattern in "${upgrade_patterns[@]}"; do
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if grep -q "$pattern" "$mongodb_log" 2>/dev/null; then
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log_message "Found upgrade pattern in log: '$pattern'"
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found_upgrade_needed=true
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break
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fi
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done
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if [ "$found_upgrade_needed" = false ]; then
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log_message "No MongoDB upgrade needed detected in log file"
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return 1
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fi
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fi
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log_message "MongoDB upgrade needed detected in log file"
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return 0
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}
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# Log rotation function for MongoDB logs
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rotate_mongodb_logs() {
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local mongodb_log="${SNAP_COMMON}/mongodb.log"
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local max_size_mb=100
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local keep_copies=10
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# Check if log file exists and is large enough to rotate
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if [ ! -f "$mongodb_log" ]; then
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log_message "MongoDB log file not found, skipping rotation"
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return 0
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fi
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# Also check for similar error messages that might indicate upgrade issues
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if grep -q "too recent to start up on the existing data files" "$mongodb_log"; then
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log_message "MongoDB upgrade needed detected in log file (alternative message)"
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# Get log file size in MB
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local log_size_mb=$(du -m "$mongodb_log" | cut -f1)
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if [ "$log_size_mb" -lt "$max_size_mb" ]; then
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log_message "MongoDB log size (${log_size_mb}MB) is below rotation threshold (${max_size_mb}MB)"
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return 0
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fi
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log_message "No MongoDB upgrade needed detected in log file"
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return 1
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log_message "Rotating MongoDB log file (size: ${log_size_mb}MB)"
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# Create rotated log file with timestamp
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local timestamp=$(date +%Y%m%d-%H%M%S)
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local rotated_log="${mongodb_log}.${timestamp}"
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# Copy current log to rotated file
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if cp "$mongodb_log" "$rotated_log"; then
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log_message "Created rotated log file: $rotated_log"
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# Truncate original log file
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if > "$mongodb_log"; then
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log_message "Truncated original log file"
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else
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log_error "Failed to truncate original log file"
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return 1
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fi
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# Compress rotated log file
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if gzip "$rotated_log"; then
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log_message "Compressed rotated log file: ${rotated_log}.gz"
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else
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log_warning "Failed to compress rotated log file"
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fi
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# Clean up old rotated logs (keep only specified number)
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local old_logs=$(ls -t "${mongodb_log}".* 2>/dev/null | tail -n +$((keep_copies + 1)))
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if [ -n "$old_logs" ]; then
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echo "$old_logs" | xargs rm -f
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log_message "Cleaned up old rotated log files"
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fi
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log_success "MongoDB log rotation completed successfully"
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return 0
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else
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log_error "Failed to create rotated log file"
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return 1
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fi
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}
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# Enhanced log rotation function for migration logs
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rotate_migration_logs() {
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local migration_log="${SNAP_COMMON}/mongodb-migration-log.txt"
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local max_size_mb=50
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local keep_copies=5
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# Check if migration log file exists and is large enough to rotate
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if [ ! -f "$migration_log" ]; then
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log_message "Migration log file not found, skipping rotation"
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return 0
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fi
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# Get log file size in MB
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local log_size_mb=$(du -m "$migration_log" | cut -f1)
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if [ "$log_size_mb" -lt "$max_size_mb" ]; then
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log_message "Migration log size (${log_size_mb}MB) is below rotation threshold (${max_size_mb}MB)"
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return 0
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fi
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log_message "Rotating migration log file (size: ${log_size_mb}MB)"
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# Create rotated log file with timestamp
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local timestamp=$(date +%Y%m%d-%H%M%S)
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local rotated_log="${migration_log}.${timestamp}"
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# Copy current log to rotated file
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if cp "$migration_log" "$rotated_log"; then
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log_message "Created rotated migration log file: $rotated_log"
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# Truncate original log file
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if > "$migration_log"; then
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log_message "Truncated original migration log file"
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else
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log_error "Failed to truncate original migration log file"
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return 1
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fi
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# Compress rotated log file
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if gzip "$rotated_log"; then
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log_message "Compressed rotated migration log file: ${rotated_log}.gz"
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else
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log_warning "Failed to compress rotated migration log file"
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fi
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# Clean up old rotated logs (keep only specified number)
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local old_logs=$(ls -t "${migration_log}".* 2>/dev/null | tail -n +$((keep_copies + 1)))
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if [ -n "$old_logs" ]; then
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echo "$old_logs" | xargs rm -f
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log_message "Cleaned up old rotated migration log files"
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fi
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log_success "Migration log rotation completed successfully"
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return 0
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else
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log_error "Failed to create rotated migration log file"
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return 1
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fi
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}
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# Reset MONGO_LOG_DESTINATION to devnull after successful migration
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@ -493,6 +668,18 @@ perform_migration() {
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log_message "Starting MongoDB migration from version 3 to 7"
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# Rotate MongoDB logs before migration if needed
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log_message "Checking if MongoDB log rotation is needed"
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if ! rotate_mongodb_logs; then
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log_warning "MongoDB log rotation failed, continuing with migration"
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fi
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# Rotate migration logs before migration if needed
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log_message "Checking if migration log rotation is needed"
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if ! rotate_migration_logs; then
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log_warning "Migration log rotation failed, continuing with migration"
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fi
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# Create backup before migration
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log_message "Creating backup before migration"
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if ! create_backup; then
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@ -572,6 +759,18 @@ EOF
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log_success "MongoDB migration completed successfully"
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# Rotate MongoDB logs after successful migration
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log_message "Rotating MongoDB logs after successful migration"
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if ! rotate_mongodb_logs; then
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log_warning "MongoDB log rotation after migration failed"
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fi
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# Rotate migration logs after successful migration
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log_message "Rotating migration logs after successful migration"
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if ! rotate_migration_logs; then
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log_warning "Migration log rotation after migration failed"
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fi
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# Reset MONGO_LOG_DESTINATION to devnull after successful migration
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reset_mongo_log_destination
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