Why bitbucket shoudown ervery morning and how to solution

[shenwenqiang]

2018-12-24 07:28:11,129 ERROR [localScheduler_Worker-4] org.quartz.core.JobRunShell Job SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an unhandled Exception:
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:27:25,958 WARN [localScheduler_Worker-5] c.a.s.i.h.OptimisticOutOfMemoryHandler OutOfMemoryError occurred attempting to continue operating as normal
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:11,129 ERROR [localScheduler_Worker-10] org.quartz.core.JobRunShell Job SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an unhandled Exception:
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:11,129 ERROR [localScheduler_Worker-3] org.quartz.core.JobRunShell Job SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an unhandled Exception:
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:21,528 ERROR [localScheduler_Worker-5] org.quartz.core.JobRunShell Job SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an unhandled Exception:
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:46,583 ERROR [localScheduler_Worker-3] org.quartz.core.ErrorLogger Job (SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception.
at org.quartz.core.JobRunShell.run(JobRunShell.java:213) ~[quartz-2.2.1.jar:na]
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:na]
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:46,583 ERROR [localScheduler_Worker-4] org.quartz.core.ErrorLogger Job (SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception.
at org.quartz.core.JobRunShell.run(JobRunShell.java:213) ~[quartz-2.2.1.jar:na]
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:na]
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:46,583 ERROR [localScheduler_Worker-10] org.quartz.core.ErrorLogger Job (SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception.
at org.quartz.core.JobRunShell.run(JobRunShell.java:213) ~[quartz-2.2.1.jar:na]
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:na]
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:28:46,583 ERROR [localScheduler_Worker-5] org.quartz.core.ErrorLogger Job (SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception.
at org.quartz.core.JobRunShell.run(JobRunShell.java:213) ~[quartz-2.2.1.jar:na]
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:na]
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:29:44,438 WARN [localScheduler_Worker-7] c.a.s.i.h.OptimisticOutOfMemoryHandler OutOfMemoryError occurred attempting to continue operating as normal
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:29:46,397 WARN [localScheduler_Worker-9] c.a.s.i.h.OptimisticOutOfMemoryHandler OutOfMemoryError occurred attempting to continue operating as normal
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:29:48,488 ERROR [localScheduler_Worker-7] org.quartz.core.JobRunShell Job SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an unhandled Exception:
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:29:56,222 ERROR [localScheduler_Worker-9] org.quartz.core.JobRunShell Job SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an unhandled Exception:
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:30:21,206 ERROR [localScheduler_Worker-9] org.quartz.core.ErrorLogger Job (SchedulerServiceJobs.CachedCommitGraphSourcePurger.cacheInvalidationRunner threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception.
at org.quartz.core.JobRunShell.run(JobRunShell.java:213) ~[quartz-2.2.1.jar:na]
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:na]
java.lang.OutOfMemoryError: Java heap space
2018-12-24 07:30:29,716 ERROR [localScheduler_Worker-7] org.quartz.core.ErrorLogger Job (SchedulerServiceJobs.C

[Nic Brough -Adaptavist-]

The error seems clear to me - it's running out of memory.

What are your users (including robots) trying to do at the time it fails?