Logs from manually running the Health Check scheduled task

log.txt

2017-02-16 15:03:57,295-0800 INFO  [qtp133746517-186] admin org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task 'Health Check: maven-central' [healthcheck] runNow
2017-02-16 15:03:57,296-0800 INFO  [qtp133746517-186] admin org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task 'Health Check: maven-central' [healthcheck] state change WAITING -> RUNNING
2017-02-16 15:03:57,421-0800 INFO  [quartz-4-thread-3] *SYSTEM org.sonatype.nexus.scheduling.internal.TaskSchedulerImpl - Task 'Health Check: maven-central' [healthcheck] scheduled: hourly
2017-02-16 15:03:57,422-0800 WARN  [quartz-4-thread-3] *SYSTEM org.sonatype.nexus.quartz.internal.task.QuartzTaskJob - Task c1bc33ae-0e7d-41a2-9246-76fcf5cae106 : 'Health Check: maven-central' [healthcheck] execution failure
java.io.IOException: Failed to determine health check interval for repository maven-central, status code 500 Internal Server Error
	at com.sonatype.nexus.plugins.healthcheck.task.HealthCheckTask.doDeltaCheck(HealthCheckTask.java:351) [na:na]
	at com.sonatype.nexus.plugins.healthcheck.task.HealthCheckTask.doRunSafe(HealthCheckTask.java:183) [na:na]
	at com.sonatype.nexus.plugins.healthcheck.task.HealthCheckTask.execute(HealthCheckTask.java:119) [na:na]
	at com.sonatype.nexus.plugins.healthcheck.task.HealthCheckTask.execute(HealthCheckTask.java:1) [na:na]
	at org.sonatype.nexus.scheduling.TaskSupport.call(TaskSupport.java:89) [org.sonatype.nexus.scheduling:3.3.0.SNAPSHOT]
	at org.sonatype.nexus.quartz.internal.task.QuartzTaskJob.doExecute(QuartzTaskJob.java:144) [org.sonatype.nexus.quartz:3.3.0.SNAPSHOT]
	at org.sonatype.nexus.quartz.internal.task.QuartzTaskJob.execute(QuartzTaskJob.java:105) [org.sonatype.nexus.quartz:3.3.0.SNAPSHOT]
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202) [org.quartz-scheduler.quartz:2.2.2]
	at org.sonatype.nexus.thread.internal.MDCAwareRunnable.run(MDCAwareRunnable.java:40) [org.sonatype.nexus.thread:3.3.0.SNAPSHOT]
	at org.apache.shiro.subject.support.SubjectRunnable.doRun(SubjectRunnable.java:120) [org.apache.shiro.core:1.3.2]
	at org.apache.shiro.subject.support.SubjectRunnable.run(SubjectRunnable.java:108) [org.apache.shiro.core:1.3.2]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_102]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_102]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_102]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_102]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102]
2017-02-16 15:03:57,424-0800 INFO  [quartz-4-thread-3] *SYSTEM org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task 'Health Check: maven-central' [healthcheck] state change RUNNING -> WAITING (FAILED)