83 lines
3.8 KiB
Bash
83 lines
3.8 KiB
Bash
#!/bin/bash
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# =============================================================================
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# SAP HANA Statement Queue Monitoring Script
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# Checks for queued SQL statements
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# =============================================================================
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
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SCRIPT_NAME="hana_queue"
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# Load configuration
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source "${SCRIPT_DIR}/hana.conf"
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source "${SCRIPT_DIR}/hana_lib.sh"
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# Acquire lock
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LOCK_FILE=$(acquire_lock "$SCRIPT_NAME")
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if [ $? -ne 0 ]; then
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exit 1
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fi
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trap 'release_lock "$LOCK_FILE"' EXIT
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log_message "$SCRIPT_NAME" "Starting statement queue check..."
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# SQL Query for statement queue
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STATEMENT_QUEUE_SQL="SELECT COUNT(*) FROM M_SERVICE_THREADS WHERE THREAD_TYPE = 'SqlExecutor' AND THREAD_STATE = 'Queueing';"
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# Check if hdbsql is available
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if [ ! -x "$HDBSQL_PATH" ]; then
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log_message "$SCRIPT_NAME" "ERROR: hdbsql not found or not executable at ${HDBSQL_PATH}"
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send_notification_if_changed "$SCRIPT_NAME" "hana_hdbsql_path_queue" "HANA Monitor Error" "hdbsql not found or not executable at ${HDBSQL_PATH}" "true" "HDBSQL_ERROR"
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exit 1
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fi
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# Execute SQL query as HANA user with improved error handling
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queue_result=$(su - "$HANA_USER" -c "$HDBSQL_PATH -U $HANA_USER_KEY -j -a -x \"$STATEMENT_QUEUE_SQL\"" 2>&1)
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sql_status=$?
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if [ $sql_status -ne 0 ]; then
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log_message "$SCRIPT_NAME" "ERROR: Failed to execute queue query. Exit code: ${sql_status}"
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send_notification_if_changed "$SCRIPT_NAME" "hana_queue_query_error" "HANA Queue Error" "Failed to execute queue query. Exit code: ${sql_status}" "true" "QUERY_ERROR"
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exit 1
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fi
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# Clear any previous query error state
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send_notification_if_changed "$SCRIPT_NAME" "hana_queue_query_error" "HANA Statement Queue" "Queue query successful." "false" "OK"
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# Parse queue count
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queue_count=$(echo "$queue_result" | tr -d '"' | xargs)
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# Validate queue count is a number
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if ! [[ "$queue_count" =~ ^[0-9]+$ ]]; then
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log_message "$SCRIPT_NAME" "WARNING: Could not retrieve HANA statement queue count. Got: '${queue_count}'. Skipping check."
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send_notification_if_changed "$SCRIPT_NAME" "hana_statement_queue_check_fail" "HANA Monitor Warning" "Could not retrieve statement queue count. Got: '${queue_count}'" "true" "QUEUE_CHECK_FAIL"
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else
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# Clear any previous check failure state
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send_notification_if_changed "$SCRIPT_NAME" "hana_statement_queue_check_fail" "HANA Monitor Warning" "Statement queue check is working." "false" "OK"
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log_message "$SCRIPT_NAME" "Current statement queue length: ${queue_count}"
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# Get breach count from state
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breach_count=$(get_state "statement_queue_breach_count")
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breach_count=${breach_count:-0}
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if [ "$queue_count" -gt "$STATEMENT_QUEUE_THRESHOLD" ]; then
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breach_count=$((breach_count + 1))
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log_message "$SCRIPT_NAME" "Statement queue is above threshold (${queue_count} > ${STATEMENT_QUEUE_THRESHOLD}). Consecutive breach count: ${breach_count}/${STATEMENT_QUEUE_CONSECUTIVE_RUNS}."
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else
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if [ "$breach_count" -gt 0 ]; then
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log_message "$SCRIPT_NAME" "Statement queue returned to normal. Resetting breach count from ${breach_count} to 0."
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fi
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breach_count=0
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fi
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set_state "statement_queue_breach_count" "$breach_count"
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if [ "$breach_count" -ge "$STATEMENT_QUEUE_CONSECUTIVE_RUNS" ]; then
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message="Statement queue has been over ${STATEMENT_QUEUE_THRESHOLD} for ${breach_count} checks. Current count: ${queue_count}."
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send_notification_if_changed "$SCRIPT_NAME" "hana_statement_queue_status" "HANA Statement Queue" "$message" "true" "ALERT:${queue_count}"
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else
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message="Statement queue is normal. Current count: ${queue_count}."
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send_notification_if_changed "$SCRIPT_NAME" "hana_statement_queue_status" "HANA Statement Queue" "$message" "false" "OK"
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fi
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fi
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log_message "$SCRIPT_NAME" "Statement queue check complete."
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