polling wait on start

Author: d-led

scripts/start-influxdb-native.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+# Start InfluxDB from a native binary (not Docker)
+# Used on macOS-ARM where Docker is not available
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+cd "${PROJECT_ROOT}"
+
+INFLUXDB_VERSION="${INFLUXDB_VERSION:-1.8.10}"
+INFLUXDB_BIN="./influxdb-${INFLUXDB_VERSION}-1/usr/bin/influxd"
+INFLUXDB_CONFIG="influxdb.conf"
+
+if [ ! -f "${INFLUXDB_BIN}" ]; then
+    echo "ERROR: InfluxDB binary not found at ${INFLUXDB_BIN}"
+    echo "Make sure InfluxDB has been downloaded and extracted."
+    exit 1
+fi
+
+if [ ! -f "${INFLUXDB_CONFIG}" ]; then
+    echo "ERROR: InfluxDB config not found at ${INFLUXDB_CONFIG}"
+    exit 1
+fi
+
+echo "Starting InfluxDB in background..."
+"${INFLUXDB_BIN}" -config "${INFLUXDB_CONFIG}" &
+INFLUXDB_PID=$!
+echo "InfluxDB PID: ${INFLUXDB_PID}"
+
+# Export PID for cleanup (only if GITHUB_ENV is set, otherwise ignore)
+if [ -n "${GITHUB_ENV:-}" ]; then
+    echo "INFLUXDB_PID=${INFLUXDB_PID}" >> "${GITHUB_ENV}"
+fi
+
+# Give InfluxDB a moment to start the process
+sleep 1
+
+# Verify the process is still running
+if ! kill -0 ${INFLUXDB_PID} 2>/dev/null; then
+    echo "ERROR: InfluxDB process (PID ${INFLUXDB_PID}) failed to start or died immediately"
+    exit 1
+fi
+
+echo "Waiting for InfluxDB to be ready (polling with exponential backoff)..."
+max_attempts=60
+attempt=0
+wait_seconds=1
+
+while [ $attempt -lt $max_attempts ]; do
+    # Check if InfluxDB responds to /ping with HTTP 204
+    # curl -f fails on HTTP error codes, but 204 (No Content) is success (2xx)
+    # We explicitly check for 204 status code to be sure
+    http_code=$(curl -s -o /dev/null -w "%{http_code}" -m 2 http://localhost:8086/ping 2>/dev/null || echo "000")
+    
+    if [ "${http_code}" = "204" ]; then
+        echo "✓ InfluxDB is ready after $attempt polling attempts!"
+        exit 0
+    fi
+    
+    attempt=$((attempt + 1))
+    echo "Attempt $attempt/$max_attempts: InfluxDB not ready yet (HTTP ${http_code}), waiting ${wait_seconds} second(s)..."
+    
+    # Verify process is still running before continuing to wait
+    if ! kill -0 ${INFLUXDB_PID} 2>/dev/null; then
+        echo "ERROR: InfluxDB process (PID ${INFLUXDB_PID}) died unexpectedly"
+        exit 1
+    fi
+    
+    sleep $wait_seconds
+    
+    # Exponential backoff: increase wait time, cap at 5 seconds
+    wait_seconds=$((wait_seconds + 1))
+    if [ $wait_seconds -gt 5 ]; then
+        wait_seconds=5
+    fi
+done
+
+echo "ERROR: InfluxDB failed to become ready after $max_attempts polling attempts"
+echo "Last HTTP response code: ${http_code:-unknown}"
+exit 1
+

scripts/start-influxdb.bat

@@ -52,20 +52,31 @@ if errorlevel 1 (
 )
 
 echo Waiting for InfluxDB to be ready...
-ping 127.0.0.1 -n 8 >nul
-
-REM Check if InfluxDB is responding using PowerShell with timeout
-set /a max_attempts=30
+REM Poll with exponential backoff: start with short waits, increase gradually
+set /a max_attempts=60
 set /a attempt=0
+set /a wait_seconds=1
 :health_check
-powershell -Command "try { $r = Invoke-WebRequest -Uri 'http://localhost:8086/ping' -TimeoutSec 1 -UseBasicParsing -ErrorAction Stop; if ($r.StatusCode -eq 204) { exit 0 } else { exit 1 } } catch { exit 1 }" >nul 2>&1
+REM Check if InfluxDB responds with HTTP 204 (No Content) which indicates readiness
+powershell -Command "try { $r = Invoke-WebRequest -Uri 'http://localhost:8086/ping' -TimeoutSec 2 -UseBasicParsing -ErrorAction Stop; if ($r.StatusCode -eq 204) { exit 0 } else { exit 1 } } catch { exit 1 }" >nul 2>&1
 if errorlevel 1 (
     set /a attempt+=1
     if !attempt! lss %max_attempts% (
-        ping 127.0.0.1 -n 2 >nul
+        REM Verify process is still running before continuing
+        tasklist /FI "IMAGENAME eq influxd.exe" 2>nul | find /I "influxd.exe" >nul
+        if errorlevel 1 (
+            echo ERROR: InfluxDB process died unexpectedly
+            exit /b 1
+        )
+        echo Attempt !attempt!/%max_attempts%: InfluxDB not ready yet, waiting !wait_seconds! second^(s^)...
+        ping 127.0.0.1 -n !wait_seconds! >nul
+        REM Exponential backoff: cap at 5 seconds
+        set /a wait_seconds+=1
+        if !wait_seconds! gtr 5 set /a wait_seconds=5
         goto :health_check
     )
-    echo WARNING: InfluxDB may not be fully ready yet
+    echo ERROR: InfluxDB failed to become ready after %max_attempts% attempts
+    exit /b 1
 ) else (
-    echo InfluxDB is ready!
+    echo ✓ InfluxDB is ready after !attempt! polling attempts!
 )