Simplify cluster status handling
This significantly simplifies cluster state handling by removing most of the superfluous get_list() calls, replacing them with basic child reads since most of them are just for a count anyways. The ones that require states simplify this down to a child read plus direct reads for the exact items required while leveraging the new read_many() function.
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@ -23,10 +23,7 @@ from json import loads
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import daemon_lib.common as common
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import daemon_lib.faults as faults
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import daemon_lib.vm as pvc_vm
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import daemon_lib.node as pvc_node
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import daemon_lib.network as pvc_network
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import daemon_lib.ceph as pvc_ceph
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def set_maintenance(zkhandler, maint_state):
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@ -217,11 +214,30 @@ def getClusterHealth(zkhandler, node_list, vm_list, ceph_osd_list):
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def getNodeHealth(zkhandler, node_list):
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# Get the health state of all nodes
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node_health_reads = list()
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for node in node_list:
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node_health_reads += [
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("node.monitoring.health", node),
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("node.monitoring.plugins", node),
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]
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all_node_health_details = zkhandler.read_many(node_health_reads)
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# Parse out the Node health details
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node_health = dict()
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for index, node in enumerate(node_list):
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for nidx, node in enumerate(node_list):
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# Split the large list of return values by the IDX of this node
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# Each node result is 2 fields long
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pos_start = nidx * 2
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pos_end = nidx * 2 + 2
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node_health_value, node_health_plugins = tuple(
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all_node_health_details[pos_start:pos_end]
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)
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node_health_details = pvc_node.getNodeHealthDetails(
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zkhandler, node, node_health_plugins.split()
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)
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node_health_messages = list()
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node_health_value = node["health"]
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for entry in node["health_details"]:
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for entry in node_health_details:
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if entry["health_delta"] > 0:
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node_health_messages.append(f"'{entry['name']}': {entry['message']}")
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@ -229,8 +245,7 @@ def getNodeHealth(zkhandler, node_list):
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"health": node_health_value,
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"messages": node_health_messages,
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}
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node_health[node["name"]] = node_health_entry
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node_health[node] = node_health_entry
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return node_health
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@ -239,74 +254,109 @@ def getClusterInformation(zkhandler):
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# Get cluster maintenance state
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maintenance_state = zkhandler.read("base.config.maintenance")
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# Get node information object list
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retcode, node_list = pvc_node.get_list(zkhandler, None)
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# Get primary node
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primary_node = common.getPrimaryNode(zkhandler)
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# Get PVC version of primary node
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pvc_version = "0.0.0"
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for node in node_list:
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if node["name"] == primary_node:
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pvc_version = node["pvc_version"]
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# Get vm information object list
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retcode, vm_list = pvc_vm.get_list(zkhandler, None, None, None, None)
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# Get network information object list
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retcode, network_list = pvc_network.get_list(zkhandler, None, None)
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# Get storage information object list
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retcode, ceph_osd_list = pvc_ceph.get_list_osd(zkhandler, None)
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retcode, ceph_pool_list = pvc_ceph.get_list_pool(zkhandler, None)
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retcode, ceph_volume_list = pvc_ceph.get_list_volume(zkhandler, None, None)
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retcode, ceph_snapshot_list = pvc_ceph.get_list_snapshot(
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zkhandler, None, None, None
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maintenance_state, primary_node = zkhandler.read_many(
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[
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("base.config.maintenance"),
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("base.config.primary_node"),
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]
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)
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# Determine, for each subsection, the total count
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# Get PVC version of primary node
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pvc_version = zkhandler.read(("node.data.pvc_version", primary_node))
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# Get the list of Nodes
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node_list = zkhandler.children("base.node")
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node_count = len(node_list)
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vm_count = len(vm_list)
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network_count = len(network_list)
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ceph_osd_count = len(ceph_osd_list)
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ceph_pool_count = len(ceph_pool_list)
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ceph_volume_count = len(ceph_volume_list)
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ceph_snapshot_count = len(ceph_snapshot_list)
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# Format the Node states
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# Get the daemon and domain states of all Nodes
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node_state_reads = list()
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for node in node_list:
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node_state_reads += [
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("node.state.daemon", node),
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("node.state.domain", node),
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]
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all_node_states = zkhandler.read_many(node_state_reads)
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# Parse out the Node states
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formatted_node_states = {"total": node_count}
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for state in common.node_state_combinations:
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state_count = 0
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for node in node_list:
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node_state = f"{node['daemon_state']},{node['domain_state']}"
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if node_state == state:
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state_count += 1
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if state_count > 0:
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formatted_node_states[state] = state_count
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for nidx, node in enumerate(node_list):
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# Split the large list of return values by the IDX of this node
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# Each node result is 2 fields long
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pos_start = nidx * 2
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pos_end = nidx * 2 + 2
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node_state = ",".join(tuple(all_node_states[pos_start:pos_end]))
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# Add to the count for this node's state
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if node_state in common.node_state_combinations:
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if formatted_node_states.get(node_state) is not None:
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formatted_node_states[node_state] += 1
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else:
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formatted_node_states[node_state] = 1
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# Format the VM states
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# Get the list of VMs
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vm_list = zkhandler.children("base.domain")
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vm_count = len(vm_list)
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# Get the states of all VMs
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vm_state_reads = list()
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for vm in vm_list:
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vm_state_reads += [
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("domain.state", vm),
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]
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all_vm_states = zkhandler.read_many(vm_state_reads)
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# Parse out the VM states
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formatted_vm_states = {"total": vm_count}
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for state in common.vm_state_combinations:
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state_count = 0
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for vm in vm_list:
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if vm["state"] == state:
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state_count += 1
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if state_count > 0:
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formatted_vm_states[state] = state_count
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for vidx, vm in enumerate(vm_list):
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# Split the large list of return values by the IDX of this VM
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# Each VM result is 1 field long, so just use the IDX
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vm_state = all_vm_states[vidx]
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# Add to the count for this VM's state
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if vm_state in common.vm_state_combinations:
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if formatted_vm_states.get(vm_state) is not None:
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formatted_vm_states[vm_state] += 1
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else:
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formatted_vm_states[vm_state] = 1
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# Format the OSD states
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# Get the list of Ceph OSDs
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ceph_osd_list = zkhandler.children("base.osd")
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ceph_osd_count = len(ceph_osd_list)
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# Get the states of all OSDs ("stat" is not a typo since we're reading stats; states are in
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# the stats JSON object)
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osd_stat_reads = list()
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for osd in ceph_osd_list:
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osd_stat_reads += [("osd.stats", osd)]
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all_osd_stats = zkhandler.read_many(osd_stat_reads)
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# Parse out the OSD states
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formatted_osd_states = {"total": ceph_osd_count}
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up_texts = {1: "up", 0: "down"}
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in_texts = {1: "in", 0: "out"}
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formatted_osd_states = {"total": ceph_osd_count}
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for state in common.ceph_osd_state_combinations:
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state_count = 0
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for ceph_osd in ceph_osd_list:
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ceph_osd_state = f"{up_texts[ceph_osd['stats']['up']]},{in_texts[ceph_osd['stats']['in']]}"
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if ceph_osd_state == state:
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state_count += 1
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if state_count > 0:
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formatted_osd_states[state] = state_count
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for oidx, osd in enumerate(ceph_osd_list):
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# Split the large list of return values by the IDX of this OSD
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# Each OSD result is 1 field long, so just use the IDX
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_osd_stats = all_osd_stats[oidx]
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# We have to load this JSON object and get our up/in states from it
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osd_stats = loads(_osd_stats)
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# Get our states
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osd_state = f"{up_texts[osd_stats['up']]},{in_texts[osd_stats['in']]}"
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# Add to the count for this OSD's state
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if osd_state in common.ceph_osd_state_combinations:
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if formatted_osd_states.get(osd_state) is not None:
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formatted_osd_states[osd_state] += 1
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else:
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formatted_osd_states[osd_state] = 1
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# Get the list of Networks
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network_list = zkhandler.children("base.network")
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network_count = len(network_list)
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# Get the list of Ceph pools
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ceph_pool_list = zkhandler.children("base.pool")
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ceph_pool_count = len(ceph_pool_list)
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# Get the list of Ceph volumes
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ceph_volume_list = zkhandler.children("base.volume")
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ceph_volume_count = len(ceph_volume_list)
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# Get the list of Ceph snapshots
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ceph_snapshot_list = zkhandler.children("base.snapshot")
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ceph_snapshot_count = len(ceph_snapshot_list)
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# Format the status data
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cluster_information = {
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