hi all   we have Kafka server with version 2.6 on Linux rhel machine    what is wrong with the following Kafka cli   kafka-topics.sh --bootstrap-server="kafka1:6667" --describe|more Error while executing topic command : The broker does not support DESCRIBE_CONFIGS [2021-09-02 11:19:02,486] ERROR org.apache.kafka.common.errors.UnsupportedVersionException: The broker does not support DESCRIBE_CONFIGS (kafka.admin.TopicCommand$)   is above cli - is valid approach ?  ... View more

we have Hadoop cluster ( HDP 2.6.5 cluster with ambari , with 25 datanodes & nodemanager machines ) we are using spark streaming application (spark 2.1 run over Hortonworks 2.6.x ) the current situation is that spark streaming applications runs on all datanodes & node-manager machines but from the resources manager logs we see the following INFO warning:   2021-06-27 14:07:01,456 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0004 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,456 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0003 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,456 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0009 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 regarding to Reservation Exceeds Allowed number of nodes what is the customization that we should to do in order to avoid above those messages? ... View more

we have 2 resource managers that are working as part of HDP cluster the first resource manager is failed after couple minutes from the log of the resource manager we can see the following lines that returned many times   2021-06-27 14:07:16,022 INFO scheduler.SchedulerNode (SchedulerNode.java:allocateContainer(152)) - Assigned container container_e83_1624802728037_0001_01_004355 of capacity <memory:86016, vCores:5> on host datanode23.fgtf.com:45454, which has 5 containers, <memory:199680, vCores:15> used and <memory:27708, vCores:75> available after allocation 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0001 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0004 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0003 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes:     AND   2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0001 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0004 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0003 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10 2021-06-27 14:07:01,279 INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: and 2021-06-27 14:07:01,282 INFO webproxy.WebAppProxyServlet (WebAppProxyServlet.java:doGet(382)) - dr.who is accessing unchecked http://22.20.101.13:53092/api/v1/applications/application_1624802728037_0009/executors which is the app master GUI of application_1624802728037_0009 owned by hdfs 2021-06-27 14:07:01,282 INFO webproxy.WebAppProxyServlet (WebAppProxyServlet.java:doGet(382)) - dr.who is accessing unchecked http://22.20.14.5:36198/api/v1/applications/application_1624801538018_0011/executors which is the app master GUI of application_1624801538018_0011 owned by hdfs any idea what is the meaning of the INFO about? INFO fair.FSAppAttempt (FSAppAttempt.java:reservationExceedsThreshold(495)) - Reservation Exceeds Allowed number of nodes: app_id=application_1624802728037_0001 existingReservations=10 totalAvailableNodes=181 reservableNodesRatio=0.05 numAllowedReservations=10   ... View more