Log system information early during startup

Information about the system, and in particular the running JVM, is
logged relatively late in startup. When problems occur in low level
initialization, it is often useful to have this information. This commit
moves logging of system information to right after logging has been
initialized. Note that it no longer utilizes the JvmInfo class as most
was already easily available and the static init of JvmInfo does a lot.

Author: rjernst

distribution/src/bin/elasticsearch-cli

@@ -19,6 +19,7 @@ exec \
   -Des.path.home="$ES_HOME" \
   -Des.path.conf="$ES_PATH_CONF" \
   -Des.distribution.type="$ES_DISTRIBUTION_TYPE" \
+  -Des.java.type="$JAVA_TYPE" \
   -cp "$LAUNCHER_CLASSPATH" \
   org.elasticsearch.launcher.CliToolLauncher \
   "$@"

distribution/src/bin/elasticsearch-cli.bat

@@ -18,6 +18,7 @@ set LAUNCHER_CLASSPATH=%ES_HOME%/lib/*;%ES_HOME%/lib/cli-launcher/*
   -Des.path.home="%ES_HOME%" ^
   -Des.path.conf="%ES_PATH_CONF%" ^
   -Des.distribution.type="%ES_DISTRIBUTION_TYPE%" ^
+  -Des.java.type="%JAVA_TYPE%" ^
   -cp "%LAUNCHER_CLASSPATH%" ^
   org.elasticsearch.launcher.CliToolLauncher ^
   %*

distribution/tools/server-cli/src/main/java/org/elasticsearch/server/cli/SystemJvmOptions.java

@@ -26,6 +26,7 @@ final class SystemJvmOptions {
 
     static List<String> systemJvmOptions(Settings nodeSettings, final Map<String, String> sysprops) {
         String distroType = sysprops.get("es.distribution.type");
+        String javaType = sysprops.get("es.java.type");
         boolean isHotspot = sysprops.getOrDefault("sun.management.compiler", "").contains("HotSpot");
         boolean entitlementsExplicitlyEnabled = Booleans.parseBoolean(sysprops.getOrDefault("es.entitlements.enabled", "true"));
         // java 24+ only supports entitlements, but it may be enabled on earlier versions explicitly
@@ -68,8 +69,9 @@ static List<String> systemJvmOptions(Settings nodeSettings, final Map<String, St
                 "-Djava.locale.providers=CLDR",
                 // Enable vectorization for whatever version we are running. This ensures we use vectorization even when running EA builds.
                 "-Dorg.apache.lucene.vectorization.upperJavaFeatureVersion=" + Runtime.version().feature(),
-                // Pass through distribution type
-                "-Des.distribution.type=" + distroType
+                // Pass through distribution type and java type
+                "-Des.distribution.type=" + distroType,
+                "-Des.java.type=" + javaType
             ),
             maybeEnableNativeAccess(useEntitlements),
             maybeOverrideDockerCgroup(distroType),

server/src/main/java/org/elasticsearch/bootstrap/Elasticsearch.java

@@ -13,6 +13,7 @@
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.core.LoggerContext;
 import org.apache.logging.log4j.core.config.Configurator;
+import org.apache.lucene.util.Constants;
 import org.apache.lucene.util.StringHelper;
 import org.apache.lucene.util.VectorUtil;
 import org.elasticsearch.Build;
@@ -57,6 +58,7 @@
 import java.io.InputStream;
 import java.io.PrintStream;
 import java.lang.invoke.MethodHandles;
+import java.lang.management.ManagementFactory;
 import java.lang.reflect.InvocationTargetException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -66,6 +68,7 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
@@ -176,6 +179,9 @@ public void checkPermission(Permission perm) {
      * <p> Phase 2 consists of everything that must occur up to and including security manager initialization.
      */
     private static void initPhase2(Bootstrap bootstrap) throws IOException {
+        // always start by dumping what we know about the process to the log
+        logSystemInfo();
+
         final ServerArgs args = bootstrap.args();
         final SecureSettings secrets = args.secrets();
         bootstrap.setSecureSettings(secrets);
@@ -285,6 +291,35 @@ private static void initPhase2(Bootstrap bootstrap) throws IOException {
         bootstrap.setPluginsLoader(pluginsLoader);
     }
 
+    private static void logSystemInfo() {
+        final Logger logger = LogManager.getLogger(Elasticsearch.class);
+        logger.info(
+            "version[{}], pid[{}], build[{}/{}/{}], OS[{}/{}/{}], JVM[{}/{}/{}/{}]",
+            Build.current().qualifiedVersion(),
+            ProcessHandle.current().pid(),
+            Build.current().type().displayName(),
+            Build.current().hash(),
+            Build.current().date(),
+            Constants.OS_NAME,
+            Constants.OS_VERSION,
+            Constants.OS_ARCH,
+            Constants.JVM_VENDOR,
+            Constants.JVM_NAME,
+            System.getProperty("java.version"),
+            Runtime.version().toString()
+        );
+        boolean isBundledJdk = System.getProperty("es.java.type", "").equals("bundled JDK");
+        logger.info("JVM home [{}], using bundled JDK [{}]", System.getProperty("java.home"), isBundledJdk);
+        logger.info("JVM arguments {}", ManagementFactory.getRuntimeMXBean().getInputArguments());
+        logger.info("Default Locale [{}]", Locale.getDefault());
+        if (Build.current().isProductionRelease() == false) {
+            logger.warn(
+                "version [{}] is a pre-release version of Elasticsearch and is not suitable for production",
+                Build.current().qualifiedVersion()
+            );
+        }
+    }
+
     private static Map<String, String> collectPluginPolicyOverrides(
         Set<PluginBundle> modulesBundles,
         Set<PluginBundle> pluginsBundles,

server/src/main/java/org/elasticsearch/monitor/jvm/JvmInfo.java

@@ -9,14 +9,11 @@
 
 package org.elasticsearch.monitor.jvm;
 
-import org.apache.lucene.util.Constants;
 import org.elasticsearch.TransportVersions;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
 import org.elasticsearch.common.io.stream.Writeable;
 import org.elasticsearch.common.unit.ByteSizeValue;
-import org.elasticsearch.core.PathUtils;
-import org.elasticsearch.core.SuppressForbidden;
 import org.elasticsearch.node.ReportingService;
 import org.elasticsearch.xcontent.XContentBuilder;
 
@@ -168,19 +165,8 @@ public class JvmInfo implements ReportingService.Info {
         );
     }
 
-    @SuppressForbidden(reason = "PathUtils#get")
     private static boolean usingBundledJdk() {
-        /*
-         * We are using the bundled JDK if java.home is the jdk sub-directory of our working directory. This is because we always set
-         * the working directory of Elasticsearch to home, and the bundled JDK is in the jdk sub-directory there.
-         */
-        final String javaHome = System.getProperty("java.home");
-        final String userDir = System.getProperty("user.dir");
-        if (Constants.MAC_OS_X) {
-            return PathUtils.get(javaHome).equals(PathUtils.get(userDir).resolve("jdk.app/Contents/Home").toAbsolutePath());
-        } else {
-            return PathUtils.get(javaHome).equals(PathUtils.get(userDir).resolve("jdk").toAbsolutePath());
-        }
+        return System.getProperty("es.java.type", "").equals("bundled JDK");
     }
 
     public static JvmInfo jvmInfo() {

server/src/main/java/org/elasticsearch/node/NodeConstruction.java

@@ -12,9 +12,7 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.apache.lucene.search.IndexSearcher;
-import org.apache.lucene.util.Constants;
 import org.apache.lucene.util.SetOnce;
-import org.elasticsearch.Build;
 import org.elasticsearch.ElasticsearchException;
 import org.elasticsearch.TransportVersion;
 import org.elasticsearch.action.ActionModule;
@@ -234,7 +232,6 @@
 import java.util.IdentityHashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
@@ -416,30 +413,6 @@ private Settings createEnvironment(Environment initialEnvironment, NodeServicePr
         DeprecationLogger.initialize(envSettings);
 
         JvmInfo jvmInfo = JvmInfo.jvmInfo();
-        logger.info(
-            "version[{}], pid[{}], build[{}/{}/{}], OS[{}/{}/{}], JVM[{}/{}/{}/{}]",
-            Build.current().qualifiedVersion(),
-            jvmInfo.pid(),
-            Build.current().type().displayName(),
-            Build.current().hash(),
-            Build.current().date(),
-            Constants.OS_NAME,
-            Constants.OS_VERSION,
-            Constants.OS_ARCH,
-            Constants.JVM_VENDOR,
-            Constants.JVM_NAME,
-            System.getProperty("java.version"),
-            Runtime.version().toString()
-        );
-        logger.info("JVM home [{}], using bundled JDK [{}]", System.getProperty("java.home"), jvmInfo.getUsingBundledJdk());
-        logger.info("JVM arguments {}", Arrays.toString(jvmInfo.getInputArguments()));
-        logger.info("Default Locale [{}]", Locale.getDefault());
-        if (Build.current().isProductionRelease() == false) {
-            logger.warn(
-                "version [{}] is a pre-release version of Elasticsearch and is not suitable for production",
-                Build.current().qualifiedVersion()
-            );
-        }
         if (Environment.PATH_SHARED_DATA_SETTING.exists(envSettings)) {
             // NOTE: this must be done with an explicit check here because the deprecation property on a path setting will
             // cause ES to fail to start since logging is not yet initialized on first read of the setting