We have a blueprints defined cluster that has an accepted topology:

ambari-server.log" 6839L, 998638C
16 Oct 2015 01:31:40,374  INFO [pool-2-thread-1] AmbariContext:375 - Config
type hdfs-site is resolved in the cluster config.
16 Oct 2015 01:31:40,374  INFO [pool-2-thread-1] AmbariContext:375 - Config
type hadoop-env is resolved in the cluster config.
16 Oct 2015 01:31:40,375  INFO [pool-2-thread-1] AmbariContext:375 - Config
type hive-site is resolved in the cluster config.
16 Oct 2015 01:31:40,375  INFO [pool-2-thread-1] AmbariContext:375 - Config
type yarn-site is resolved in the cluster config.
16 Oct 2015 01:31:40,375  INFO [pool-2-thread-1] AmbariContext:375 - Config
type oozie-site is resolved in the cluster config.
16 Oct 2015 01:31:40,376  INFO [pool-2-thread-1] AmbariContext:375 - Config
type webhcat-site is resolved in the cluster config.
16 Oct 2015 01:31:40,376  INFO [pool-2-thread-1] AmbariContext:375 - Config
type cluster-env is resolved in the cluster config.
16 Oct 2015 01:31:40,376  INFO [pool-2-thread-1] AmbariContext:375 - Config
type mapred-site is resolved in the cluster config.
16 Oct 2015 01:31:40,377  INFO [pool-2-thread-1] AmbariContext:375 - Config
type core-site is resolved in the cluster config.
16 Oct 2015 01:31:40,377  INFO [pool-2-thread-1] AmbariContext:375 - Config
type oozie-env is resolved in the cluster config.
16 Oct 2015 01:31:40,377  INFO [pool-2-thread-1] AmbariContext:381 - All
required configuration types are in the* TOPOLOGY_RESOLVED state.
Blueprint deployment can now continue.*
16 Oct 2015 01:31:40,377  INFO [pool-2-thread-1] TopologyManager:558 -
TopologyManager.ConfigureClusterTask: Exiting


We then have a few messages that seem healthy:

16 Oct 2015 01:32:00,945  INFO [Thread-25] AbstractPoolBackedDataSource:462
- Initializing c3p0 pool...
16 Oct 2015 01:32:00,985  INFO [Thread-25] JobStoreTX:861 - Freed 0
triggers from 'acquired' / 'blocked' state.
16 Oct 2015 01:32:00,992  INFO [Thread-25] JobStoreTX:871 - Recovering 0
jobs that were in-progress at the time of the last shut-down.
16 Oct 2015 01:32:00,992  INFO [Thread-25] JobStoreTX:884 - Recovery
complete.
16 Oct 2015 01:32:00,998  INFO [Thread-25] QuartzScheduler:575 - Scheduler
ExecutionScheduler_$_NON_CLUSTERED started.
16 Oct 2015 01:33:34,658  INFO [qtp-client-72] JvmInformation:446 -
Detected JVM data model settings of: 64-Bit HotSpot JVM with Compressed
OOPs and Concurrent Mark-and-Sweep GC
16 Oct 2015 01:33:34,928  INFO [qtp-client-72]
TimelineMetricCacheProvider:73 - ..

However we then have a series of LONG (multiple minutes) delays, in between
which there are some "Looking for keyname <foo>" :


016.novalocal/10.103.177.55-9ac6f6e0-9d4a-447e-b3ee-53926d6e16bf
16 Oct 2015 01:33:35,088  INFO [qtp-client-76] PersistKeyValueService:82 -
Looking for keyName CLUSTER_CURRENT_STATUS
16 Oct 2015 01:33:36,272  INFO [qtp-client-72] PersistKeyValueService:82 -
Looking for keyName user-pref-admin-dashboard
16 Oct 2015 01:33:43,550  INFO [qtp-client-72] PersistKeyValueService:82 -
Looking for keyName time-range-service-HDFS
16 Oct 2015 01:33:44,995  WARN [pool-7-thread-1] JMXPropertyProvider:202 -
Unable to get JMX metrics.  No host name for NAMENODE
16 Oct 2015 01:34:00,930  INFO [qtp-client-72] PersistKeyValueService:82 -
Looking for keyName admin-settings-show-bg-admin
16 Oct 2015 01:34:01,010  INFO [qtp-client-76] PersistKeyValueService:82 -
Looking for keyName hostPopup-pagination-displayLength-admin
16 Oct 2015 01:36:34,123  INFO [qtp-client-82] PersistKeyValueService:82 -
Looking for keyName time-range-service-AMBARI_METRICS
16 Oct 2015 01:36:42,903  INFO [qtp-client-125] PersistKeyValueService:82 -
Looking for keyName time-range-service-HDFS
16 Oct 2015 01:36:44,138  WARN [pool-7-thread-35] JMXPropertyProvider:202 -
Unable to get JMX metrics.  No host name for NAMENODE
16 Oct 2015 01:36:57,590  INFO [qtp-client-75] PersistKeyValueService:82 -
Looking for keyName admin-settings-show-bg-admin
16 Oct 2015 01:48:10,901  INFO [qtp-client-192] PersistKeyValueService:82 -
Looking for keyName admin-settings-show-bg-admin
16 Oct 2015 01:53:06,487  INFO [qtp-client-214] PersistKeyValueService:82 -
Looking for keyName user-pref-admin-dashboard



After that last message there was another 15 minute delay and then nothing
(another sixty minutes has passed)..

How to determine what is happening here and why?

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