sunithabeeram commented on a change in pull request #4222: Add startup/shutdown
checks for HelixServerStarter
URL: https://github.com/apache/incubator-pinot/pull/4222#discussion_r286076909
##########
File path:
pinot-server/src/main/java/org/apache/pinot/server/starter/helix/HelixServerStarter.java
##########
@@ -72,61 +63,66 @@
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import static org.apache.pinot.common.utils.CommonConstants.Helix.*;
+import static org.apache.pinot.common.utils.CommonConstants.Server.*;
+
/**
- * Single server helix starter. Will start automatically with an untagged box.
- * Will auto join current cluster as a participant.
- *
- *
- *
+ * Starter for Helix-based Pinot server.
+ * <p>When an instance starts for the first time, it will automatically join
the Helix cluster with the default tag.
+ * <ul>
+ * <li>
+ * Optional start-up checks:
+ * <ul>
+ * <li>Service status check (ON by default)</li>
+ * </ul>
+ * </li>
+ * <li>
+ * Optional shut-down checks:
+ * <ul>
+ * <li>Query check (drains and finishes existing queries, ON by
default)</li>
+ * <li>Resource check (wait for all resources OFFLINE, OFF by
default)</li>
+ * </ul>
+ * </li>
+ * </ul>
*/
public class HelixServerStarter {
private static final Logger LOGGER =
LoggerFactory.getLogger(HelixServerStarter.class);
private final String _helixClusterName;
- private final Configuration _helixServerConfig;
+ private final Configuration _serverConf;
private final String _instanceId;
- private final long _maxQueryTimeMs;
- private final long _maxShutdownWaitTimeMs;
- private final long _checkIntervalTimeMs;
private final HelixManager _helixManager;
private final HelixAdmin _helixAdmin;
private final ServerInstance _serverInstance;
private final AdminApiApplication _adminApiApplication;
private final String _zkServers;
- public HelixServerStarter(String helixClusterName, String zkServer,
Configuration helixServerConfig)
+ public HelixServerStarter(String helixClusterName, String zkServer,
Configuration serverConf)
throws Exception {
LOGGER.info("Starting Pinot server");
+ long startTimeMs = System.currentTimeMillis();
_helixClusterName = helixClusterName;
// Make a clone so that changes to the config won't propagate to the caller
- _helixServerConfig =
ConfigurationUtils.cloneConfiguration(helixServerConfig);
-
- if
(_helixServerConfig.containsKey(CommonConstants.Server.CONFIG_OF_INSTANCE_ID)) {
- _instanceId =
_helixServerConfig.getString(CommonConstants.Server.CONFIG_OF_INSTANCE_ID);
- } else {
- String host =
-
_helixServerConfig.getString(CommonConstants.Helix.KEY_OF_SERVER_NETTY_HOST,
NetUtil.getHostAddress());
- int port = _helixServerConfig
- .getInt(CommonConstants.Helix.KEY_OF_SERVER_NETTY_PORT,
CommonConstants.Helix.DEFAULT_SERVER_NETTY_PORT);
- _instanceId = CommonConstants.Helix.PREFIX_OF_SERVER_INSTANCE + host +
"_" + port;
-
_helixServerConfig.addProperty(CommonConstants.Server.CONFIG_OF_INSTANCE_ID,
_instanceId);
+ _serverConf = ConfigurationUtils.cloneConfiguration(serverConf);
+
+ // Log warnings for usage of deprecated config keys
+ String[] deprecatedConfigKeys =
+ new String[]{CONFIG_OF_STARTER_ENABLE_SEGMENTS_LOADING_CHECK,
CONFIG_OF_STARTER_TIMEOUT_IN_SECONDS, CONFIG_OF_ENABLE_SHUTDOWN_DELAY,
CONFIG_OF_INSTANCE_MAX_SHUTDOWN_WAIT_TIME,
CONFIG_OF_INSTANCE_CHECK_INTERVAL_TIME};
+ for (String deprecatedConfigKey : deprecatedConfigKeys) {
+ if (_serverConf.containsKey(deprecatedConfigKey)) {
+ LOGGER.warn("Found usage of deprecated key: {}", deprecatedConfigKey);
Review comment:
Might be good to indicate what this is replaced with.
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