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ASF GitHub Bot logged work on HADOOP-18222: ------------------------------------------- Author: ASF GitHub Bot Created on: 10/May/22 12:56 Start Date: 10/May/22 12:56 Worklog Time Spent: 10m Work Description: szilard-nemeth commented on PR #4266: URL: https://github.com/apache/hadoop/pull/4266#issuecomment-1122354050 > Hi @hchaverri , CC: @szilard-nemeth My local merge hchaverri code has passed the test, and his solution is feasible. Change the DelegationTokenSecretManagerMetrics into a global declaration, which can guarantee 1 initialization. > > I found out that he may have Blocking Java Doc compilation error, I try to solve it. > > JIRA:[issues.apache.org/jira/browse/HADOOP-18229](https://issues.apache.org/jira/browse/HADOOP-18229) [GitHub Pull Request #4292](https://github.com/apache/hadoop/pull/4292) I see, thanks for the update. Issue Time Tracking ------------------- Worklog Id: (was: 768479) Time Spent: 1h 20m (was: 1h 10m) > Prevent DelegationTokenSecretManagerMetrics from registering multiple times > ---------------------------------------------------------------------------- > > Key: HADOOP-18222 > URL: https://issues.apache.org/jira/browse/HADOOP-18222 > Project: Hadoop Common > Issue Type: Improvement > Reporter: Hector Sandoval Chaverri > Assignee: Hector Sandoval Chaverri > Priority: Minor > Labels: pull-request-available > Time Spent: 1h 20m > Remaining Estimate: 0h > > After committing HADOOP-18167, we received reports of the following error > when ResourceManager is initialized: > {noformat} > Caused by: java.io.IOException: Problem starting http server > at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:1389) > at > org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:475) > ... 4 more > Caused by: org.apache.hadoop.metrics2.MetricsException: Metrics source > DelegationTokenSecretManagerMetrics already exists! > at > org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:152) > at > org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:125) > at > org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:229) > at > org.apache.hadoop.metrics2.MetricsSystem.register(MetricsSystem.java:71) > at > org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager$DelegationTokenSecretManagerMetrics.create(AbstractDelegationTokenSecretManager.java:878) > at > org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager.<init>(AbstractDelegationTokenSecretManager.java:152) > at > org.apache.hadoop.security.token.delegation.web.DelegationTokenManager$DelegationTokenSecretManager.<init>(DelegationTokenManager.java:72) > at > org.apache.hadoop.security.token.delegation.web.DelegationTokenManager.<init>(DelegationTokenManager.java:122) > at > org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationHandler.initTokenManager(DelegationTokenAuthenticationHandler.java:161) > at > org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationHandler.init(DelegationTokenAuthenticationHandler.java:130) > at > org.apache.hadoop.security.authentication.server.AuthenticationFilter.initializeAuthHandler(AuthenticationFilter.java:194) > at > org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter.initializeAuthHandler(DelegationTokenAuthenticationFilter.java:214) > at > org.apache.hadoop.security.authentication.server.AuthenticationFilter.init(AuthenticationFilter.java:180) > at > org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter.init(DelegationTokenAuthenticationFilter.java:180) > at > org.apache.hadoop.yarn.server.security.http.RMAuthenticationFilter.init(RMAuthenticationFilter.java:53){noformat} > This can happen if MetricsSystemImpl#init is called and multiple metrics are > registered with the same name. A proposed solution is to declare the metrics > in AbstractDelegationTokenSecretManager as singleton, which would prevent > multiple instances DelegationTokenSecretManagerMetrics from being registered. -- This message was sent by Atlassian Jira (v8.20.7#820007) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org