import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
+import lombok.NoArgsConstructor;
import org.apache.commons.lang3.StringUtils;
-import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.client.FourLetterWordMain;
import org.hibernate.Query;
import org.hibernate.Session;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.onap.portalsdk.core.util.SystemProperties;
import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.transaction.annotation.Transactional;
@Transactional
-@org.springframework.context.annotation.Configuration
+@Configuration
@EnableAspectJAutoProxy
@EPMetricsLog
+@NoArgsConstructor
public class HealthMonitor {
-
-
- ZooKeeper zookeeper = null;
-
private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(HealthMonitor.class);
-
- @Autowired
- private SessionFactory sessionFactory;
-
+ private Thread healthMonitorThread;
+ private static SessionFactory sessionFactory;
private static boolean databaseUp;
private static boolean uebUp;
private static boolean dbPermissionsOk;
private static boolean zookeeperStatusOk;
private static boolean cassandraStatusOk;
- private static String APPLICATION = "Portal";
-
- /**
- * Read directly by external classes.
- */
- public static boolean isSuspended = false;
-
- private Thread healthMonitorThread;
-
- public HealthMonitor() {
- }
-
- public static boolean isDatabaseUp() {
- return databaseUp;
- }
-
- public static boolean isDatabasePermissionsOk() {
- return dbPermissionsOk;
- }
+ private static String application = "Portal";
+ private static boolean isSuspended = false;
- public static boolean isUebUp() {
- return uebUp;
- }
-
- public static boolean isFrontEndUp() {
- return frontEndUp;
- }
-
- public static boolean isBackEndUp() {
- return backEndUp;
- }
-
- public static boolean isZookeeperStatusOk() {
- return zookeeperStatusOk;
- }
-
- public static boolean isCassandraStatusOk() {
- return cassandraStatusOk;
+ @Autowired
+ public HealthMonitor(SessionFactory sessionFactory) {
+ HealthMonitor.sessionFactory = sessionFactory;
}
- private void monitorEPHealth() throws InterruptedException {
+ private static void monitorEPHealth() {
int numIntervalsDatabaseHasBeenDown = 0;
- int numIntervalsClusterNotHealthy = 0;
int numIntervalsDatabasePermissionsIncorrect = 0;
int numIntervalsZookeeperNotHealthy = 0;
int numIntervalsCassandraNotHealthy = 0;
long sleepInterval = (Long
- .valueOf(SystemProperties.getProperty(EPCommonSystemProperties.HEALTH_POLL_INTERVAL_SECONDS)) * 1000);
+ .parseLong(SystemProperties.getProperty(EPCommonSystemProperties.HEALTH_POLL_INTERVAL_SECONDS)) * 1000);
long numIntervalsBetweenAlerts = Long
- .valueOf(SystemProperties.getProperty(EPCommonSystemProperties.HEALTHFAIL_ALERT_EVERY_X_INTERVALS));
+ .parseLong(SystemProperties.getProperty(EPCommonSystemProperties.HEALTHFAIL_ALERT_EVERY_X_INTERVALS));
logger.debug(EELFLoggerDelegate.debugLogger,
"monitorEPHealth: Polling health every " + sleepInterval + " milliseconds. Alerting every "
+ (sleepInterval * numIntervalsBetweenAlerts) / 1000 + " seconds when component remains down.");
//
// Get DB status. If down, signal alert once every X intervals.
//
- databaseUp = this.checkIfDatabaseUp();
- if (databaseUp == false) {
+ databaseUp = checkIfDatabaseUp();
+ if (databaseUp) {
if ((numIntervalsDatabaseHasBeenDown % numIntervalsBetweenAlerts) == 0) {
logger.debug(EELFLoggerDelegate.debugLogger,
"monitorEPHealth: database down, logging to error log to trigger alert.");
}
}
- dbPermissionsOk = this.checkDatabasePermissions();
- if (dbPermissionsOk == false) {
+ dbPermissionsOk = checkDatabasePermissions();
+ if (!dbPermissionsOk) {
if ((numIntervalsDatabasePermissionsIncorrect % numIntervalsBetweenAlerts) == 0) {
logger.debug(EELFLoggerDelegate.debugLogger,
"monitorEPHealth: database permissions incorrect, logging to error log to trigger alert.");
numIntervalsDatabasePermissionsIncorrect = 0;
}
}
- org.onap.portalapp.music.util.MusicUtil MusicUtilSDK = new org.onap.portalapp.music.util.MusicUtil();
- if(MusicUtilSDK.isMusicEnable()){
+ if(org.onap.portalapp.music.util.MusicUtil.isMusicEnable()){
- zookeeperStatusOk = this.checkZookeeperStatus();
+ zookeeperStatusOk = checkZookeeperStatus();
- if (zookeeperStatusOk == false) {
+ if (!zookeeperStatusOk) {
if ((numIntervalsZookeeperNotHealthy % numIntervalsBetweenAlerts) == 0) {
logger.debug(EELFLoggerDelegate.debugLogger,
"monitorEPHealth: cluster nodes down, logging to error log to trigger alert.");
}
}
- cassandraStatusOk = this.checkCassandraStatus();
- if (cassandraStatusOk == false) {
+ cassandraStatusOk = checkCassandraStatus();
+ if (!cassandraStatusOk) {
if ((numIntervalsCassandraNotHealthy % numIntervalsBetweenAlerts) == 0) {
logger.debug(EELFLoggerDelegate.debugLogger,
"monitorEPHealth: cluster nodes down, logging to error log to trigger alert.");
}
}
}
-
-
- //
- // Get UEB status. Publish a bogus message to EP inbox, if 200 OK
- // returned, status is Up.
- // If down, signal alert once every X intervals.
- // EP will ignore this bogus message.
- // Commenting this out as Dependency on UEB is being deprecated
- /*
- * uebUp = this.checkIfUebUp(); if (uebUp == false) {
- *
- * if ((numIntervalsUebHasBeenDown % numIntervalsBetweenAlerts) == 0) {
- * logger.debug(EELFLoggerDelegate.debugLogger,
- * "monitorEPHealth: UEB down, logging to error log to trigger alert"); // Write
- * a Log entry that will generate an alert EPLogUtil.logEcompError(logger,
- * EPAppMessagesEnum.BeHealthCheckUebClusterError);
- * numIntervalsUebHasBeenDown++; } else { numIntervalsUebHasBeenDown = 0; } }
- */
-
- // The front end should be up because the API is called through
- // proxy front end server.
frontEndUp = true;
-
- // If the rest API called, the backend is always up
backEndUp = true;
- //
- // future nice to have...get Partner status
- //
- // For all apps exposing a rest url, query one of the rest
- // urls(/roles?) and manage a list
- // of app name/status. We might not return back a non 200 OK in
- // health check, but we
- // could return information in the json content of a health check.
- //
-
- //
- // Get DB status. If down, signal alert once every X intervals.
- //
if (Thread.interrupted()) {
logger.info(EELFLoggerDelegate.errorLogger, "monitorEPHealth: thread interrupted");
break;
@PostConstruct
public void initHealthMonitor() {
healthMonitorThread = new Thread("EP HealthMonitor thread") {
+ @Override
public void run() {
try {
monitorEPHealth();
- } catch (InterruptedException e) {
- logger.debug(EELFLoggerDelegate.debugLogger, "healthMonitorThread interrupted", e);
- }
+ }
catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "healthMonitorThread failed", e);
}
*
* @return true if the database can be read.
*/
- private boolean checkIfDatabaseUp() {
+ private static boolean checkIfDatabaseUp() {
boolean isUp = false;
Session localSession = null;
try {
return isUp;
}
- private boolean checkZookeeperStatus() {
+ private static boolean checkZookeeperStatus() {
String[] zookeeperNodes = MusicUtil.getMyZkHost().split(",");
logger.info(EELFLoggerDelegate.applicationLogger, "MusicUtil.getMyZkHost()---- :" + MusicUtil.getMyZkHost());
- for (int i = 0; i < zookeeperNodes.length; i++) {
+ for (String zookeeperNode : zookeeperNodes) {
try {
- logger.info(EELFLoggerDelegate.applicationLogger, "server ip--zookeeper :" + zookeeperNodes[i].trim());
- String[] iport = zookeeperNodes[i].split(":");
+ logger.info(EELFLoggerDelegate.applicationLogger, "server ip--zookeeper :" + zookeeperNode.trim());
+ String[] iport = zookeeperNode.split(":");
String zkNodeStatistics = FourLetterWordMain.send4LetterWord(iport[0].trim(),
- Integer.parseInt(iport[1].trim()), "stat");
+ Integer.parseInt(iport[1].trim()), "stat");
logger.info(EELFLoggerDelegate.applicationLogger,
- "Getting Status for Zookeeper zkNodeStatistics :" + zkNodeStatistics);
+ "Getting Status for Zookeeper zkNodeStatistics :" + zkNodeStatistics);
if (StringUtils.isNotBlank(zkNodeStatistics)) {
String state = zkNodeStatistics.substring(zkNodeStatistics.indexOf("Mode:"),
- zkNodeStatistics.indexOf("Node"));
+ zkNodeStatistics.indexOf("Node"));
logger.info(EELFLoggerDelegate.applicationLogger,
- "Getting Status for zookeeper :" + zookeeperNodes[i].trim() + ":------:" + state);
- if (state.contains("leader") || state.contains("follower"))
+ "Getting Status for zookeeper :" + zookeeperNode.trim() + ":------:" + state);
+ if (state.contains("leader") || state.contains("follower")) {
return true;
+ }
}
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "ZookeeperStatus Service is not responding", e.getCause());
}
- public boolean checkCassandraStatus() {
+ private static boolean checkCassandraStatus() {
logger.info(EELFLoggerDelegate.applicationLogger, "Getting Status for Cassandra");
- if (this.getAdminKeySpace()) {
+ if (getAdminKeySpace()) {
return true;
} else {
logger.error(EELFLoggerDelegate.errorLogger, "Cassandra Service is not responding");
}
}
- private Boolean getAdminKeySpace() {
+ private static Boolean getAdminKeySpace() {
String musicKeySpace = MusicProperties.getProperty(MusicProperties.MUSIC_SESSION_KEYSPACE);
Instant creationTime = Instant.now();
PreparedQueryObject pQuery = new PreparedQueryObject();
pQuery.appendQueryString(
"UPDATE " + musicKeySpace + ".health_check SET creation_time = ? WHERE primary_id = ?");
pQuery.addValue(creationTime.toString());
- pQuery.addValue(APPLICATION);
+ pQuery.addValue(application);
try {
MusicCore.nonKeyRelatedPut(pQuery, MusicUtil.CRITICAL);
} catch (MusicServiceException e) {
+ logger.error(EELFLoggerDelegate.errorLogger, e.getErrorMessage(), e);
return Boolean.FALSE;
}
return Boolean.TRUE;
}
- private boolean checkDatabasePermissions() {
+ private static boolean checkDatabasePermissions() {
boolean isUp = false;
Session localSession = null;
try {
break;
}
}
- if (isUp == false) {
+ if (!isUp) {
logger.error(EELFLoggerDelegate.errorLogger,
"checkDatabasePermissions returning false. SHOW GRANTS FOR CURRENT_USER being dumped:");
for (String str : grantsList) {
}
return isUp;
}
-
+
+ public static boolean isDatabaseUp() {
+ return databaseUp;
+ }
+
+ public static boolean isUebUp() {
+ return uebUp;
+ }
+
+ public static boolean isFrontEndUp() {
+ return frontEndUp;
+ }
+
+ public static boolean isBackEndUp() {
+ return backEndUp;
+ }
+
+ public static boolean isDbPermissionsOk() {
+ return dbPermissionsOk;
+ }
+
+ public static boolean isZookeeperStatusOk() {
+ return zookeeperStatusOk;
+ }
+
+ public static boolean isCassandraStatusOk() {
+ return cassandraStatusOk;
+ }
+
+ public static boolean isSuspended() {
+ return isSuspended;
+ }
+
+ public static void setSuspended(boolean isSuspended) {
+ HealthMonitor.isSuspended = isSuspended;
+ }
}
Code Review / portal.git / commitdiff