public virtual void StopDecommission(DatanodeDescriptor node)
{
if (node.IsDecommissionInProgress() || node.IsDecommissioned())
{
// Update DN stats maintained by HeartbeatManager
hbManager.StopDecommission(node);
// Over-replicated blocks will be detected and processed when
// the dead node comes back and send in its full block report.
if (node.isAlive)
{
blockManager.ProcessOverReplicatedBlocksOnReCommission(node);
}
// Remove from tracking in DecommissionManager
pendingNodes.Remove(node);
Sharpen.Collections.Remove(decomNodeBlocks, node);
}
else
{
Log.Trace("stopDecommission: Node {} in {}, nothing to do." + node, node.GetAdminState
());
}
}
public virtual void StartDecommission(DatanodeDescriptor node)
{
if (!node.IsDecommissionInProgress() && !node.IsDecommissioned())
{
// Update DN stats maintained by HeartbeatManager
hbManager.StartDecommission(node);
// hbManager.startDecommission will set dead node to decommissioned.
if (node.IsDecommissionInProgress())
{
foreach (DatanodeStorageInfo storage in node.GetStorageInfos())
{
Log.Info("Starting decommission of {} {} with {} blocks", node, storage, storage.
NumBlocks());
}
node.decommissioningStatus.SetStartTime(Time.MonotonicNow());
pendingNodes.AddItem(node);
}
}
else
{
Log.Trace("startDecommission: Node {} in {}, nothing to do." + node, node.GetAdminState
());
}
}