server/src/main/java/org/apache/cloudstack/ha/HAManager.java

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package org.apache.cloudstack.ha;

import com.cloud.ha.Investigator;
import com.cloud.host.Host;
import com.cloud.host.Status;
import org.apache.cloudstack.framework.config.ConfigKey;
import org.apache.cloudstack.ha.provider.HAProvider;

public interface HAManager extends HAConfigManager {

    ConfigKey<Integer> MaxConcurrentHealthCheckOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.concurrent.health.check.operations",
            "50",
            "The number of concurrent health check operations per management server. This setting determines the size of the thread pool consuming the HEALTH CHECK queue.", true);

    ConfigKey<Integer> MaxPendingHealthCheckOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.pending.health.check.operations",
            "5000",
            "The number of pending health check operations per management server. This setting determines the size of the HEALTH CHECK queue.", true);

    ConfigKey<Integer> MaxConcurrentActivityCheckOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.concurrent.activity.check.operations",
            "25",
            "The number of concurrent activity check operations per management server. This setting determines the size of the thread pool consuming the ACTIVITY CHECK queue.",
            true);

    ConfigKey<Integer> MaxPendingActivityCheckOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.pending.activity.check.operations",
            "2500",
            "The number of pending activity check operations per management server. This setting determines the size of the size of the ACTIVITY CHECK queue.", true);

    ConfigKey<Integer> MaxConcurrentRecoveryOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.concurrent.recovery.operations",
            "25",
            "The number of concurrent recovery operations per management server.", true);

    ConfigKey<Integer> MaxPendingRecoveryOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.pending.recovery.operations",
            "2500",
            "The number of pending recovery operations per management server. This setting determines the size of the size of the RECOVERY queue.", true);

    ConfigKey<Integer> MaxConcurrentFenceOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.concurrent.fence.operations",
            "25",
            "The number of concurrent fence operations per management server.", true);

    ConfigKey<Integer> MaxPendingFenceOperations = new ConfigKey<>("Advanced", Integer.class,
            "ha.max.pending.fence.operations",
            "2500",
            "The number of pending fence operations per management server. This setting determines the size of the size of the FENCE queue.", true);

    boolean transitionHAState(final HAConfig.Event event, final HAConfig haConfig);

    HAProvider getHAProvider(final String name);

    HAResourceCounter getHACounter(final Long resourceId, final HAResource.ResourceType resourceType);

    void purgeHACounter(final Long resourceId, final HAResource.ResourceType resourceType);

    boolean isHAEligible(final HAResource resource);

    Boolean isVMAliveOnHost(final Host host) throws Investigator.UnknownVM;

    Status getHostStatusFromHAConfig(final Host host);
}