Tomi Eckert
7495ebcd78
Remove SAPCONTROL_PATH and HDBSQL_PATH variables from configuration. Update scripts to rely on the system PATH environment variable when executing as the <sid>adm user. Remove redundant existence checks for these commands.
135 lines
3.8 KiB
Bash
135 lines
3.8 KiB
Bash
#!/bin/bash
|
|
# =============================================================================
|
|
# SAP HANA Monitoring Library - Shared Functions
|
|
# =============================================================================
|
|
|
|
# Initialize script with common setup
|
|
# Usage: init_script "SCRIPT_NAME"
|
|
# Sets up: SCRIPT_DIR, SCRIPT_NAME, LOG_FILE, LOCK_DIR
|
|
init_script() {
|
|
SCRIPT_NAME="$1"
|
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
|
|
|
|
# Load configuration
|
|
source "${SCRIPT_DIR}/hana.conf"
|
|
|
|
# Setup logging
|
|
LOG_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
|
|
LOG_FILE="${LOG_DIR}/hana_monitor.log"
|
|
|
|
# Setup lock directory
|
|
LOCK_DIR="/tmp"
|
|
}
|
|
|
|
# Acquire lock for script execution
|
|
# Usage: acquire_lock "SCRIPT_NAME"
|
|
# Returns: 0 on success, 1 on failure (already running)
|
|
acquire_lock() {
|
|
local script_name="$1"
|
|
local lock_file="${LOCK_DIR}/hana_${script_name}.lock"
|
|
|
|
if [ -e "$lock_file" ]; then
|
|
log_message "$script_name" "Script is already running. Exiting."
|
|
return 1
|
|
fi
|
|
|
|
touch "$lock_file"
|
|
return 0
|
|
}
|
|
|
|
# Release lock
|
|
# Usage: release_lock "SCRIPT_NAME"
|
|
release_lock() {
|
|
local script_name="$1"
|
|
local lock_file="${LOCK_DIR}/hana_${script_name}.lock"
|
|
if [ -f "$lock_file" ]; then
|
|
rm -f "$lock_file"
|
|
fi
|
|
}
|
|
|
|
# Logging function with script name prefix
|
|
# Usage: log_message "SCRIPT_NAME" "message"
|
|
log_message() {
|
|
local script_name="$1"
|
|
local message="$2"
|
|
local timestamp=$(date "+%Y-%m-%d %H:%M:%S")
|
|
echo "[${timestamp}] [${script_name}] ${message}" | tee -a "${LOG_FILE}"
|
|
}
|
|
|
|
# Send notification via ntfy
|
|
# Usage: send_notification "TITLE" "MESSAGE"
|
|
send_notification() {
|
|
local title="$1"
|
|
local message="$2"
|
|
local hostname=$(hostname)
|
|
local full_message="[${COMPANY_NAME} | ${hostname}] ${message}"
|
|
|
|
if [ -n "$NTFY_TOKEN" ] && [ -n "$NTFY_TOPIC_URL" ]; then
|
|
curl -H "Authorization: Bearer ${NTFY_TOKEN}" -H "Title: ${title}" -d "${full_message}" "${NTFY_TOPIC_URL}" > /dev/null 2>&1
|
|
log_message "NOTIFY" "Notification sent: ${title}"
|
|
else
|
|
log_message "NOTIFY" "Ntfy not configured, skipping notification"
|
|
fi
|
|
}
|
|
|
|
# Send alert notification
|
|
# Usage: send_alert "SCRIPT_NAME" "TITLE_PREFIX" "MESSAGE"
|
|
send_alert() {
|
|
local script_name="$1"
|
|
local title_prefix="$2"
|
|
local message="$3"
|
|
send_notification "${title_prefix} Alert" "🚨 Critical: ${message}"
|
|
log_message "$script_name" "ALERT: ${message}"
|
|
}
|
|
|
|
# Execute SQL query as HANA user
|
|
# Usage: execute_hana_sql "SQL_QUERY"
|
|
# Returns: SQL output on stdout, returns 0 on success, 1 on failure
|
|
execute_hana_sql() {
|
|
local sql_query="$1"
|
|
local output
|
|
|
|
output=$(su - "$HANA_USER" -c "hdbsql -U $HANA_USER_KEY -j -a -x \"$sql_query\"" 2>&1)
|
|
local sql_status=$?
|
|
|
|
if [ $sql_status -ne 0 ]; then
|
|
log_message "SQL" "ERROR: Failed to execute SQL query. Exit code: ${sql_status}"
|
|
echo "$output" >&2
|
|
return 1
|
|
fi
|
|
|
|
echo "$output"
|
|
return 0
|
|
}
|
|
|
|
# Execute SQL query and return result (for single-value queries)
|
|
# Usage: execute_hana_sql_query "SQL_QUERY"
|
|
# Returns: Query result on stdout, returns 0 on success, 1 on failure
|
|
execute_hana_sql_query() {
|
|
local sql_query="$1"
|
|
local output
|
|
|
|
output=$(execute_hana_sql "$sql_query")
|
|
local sql_status=$?
|
|
|
|
if [ $sql_status -ne 0 ]; then
|
|
return 1
|
|
fi
|
|
|
|
# Clean output: remove quotes and whitespace
|
|
echo "$output" | tr -d '"' | xargs
|
|
return 0
|
|
}
|
|
|
|
# Get disk usage percentage for a directory
|
|
# Usage: get_disk_usage_percentage "/path/to/dir"
|
|
# Returns: Usage percentage as integer (without % sign)
|
|
get_disk_usage_percentage() {
|
|
local dir="$1"
|
|
if [ ! -d "$dir" ]; then
|
|
echo "0"
|
|
return
|
|
fi
|
|
df "$dir" 2>/dev/null | awk 'NR==2 {gsub(/%/,"",$5); print $5}'
|
|
}
|