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Keep live servers running during degraded discovery #24

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Keep live servers running during degraded discovery #24

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7 changes: 7 additions & 0 deletions lib/durable_server.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -3595,6 +3595,13 @@ defmodule DurableServer do
report_lock_diagnostic(sup_name, :check_lock_calls)

cond do
# A partial heartbeat snapshot must never be used to justify taking a lock
# from another owner. The lifecycle manager clears this gate only after a
# complete cache reconciliation.
LifecycleManager.discovery_degraded?(sup_name) ->
report_lock_diagnostic(sup_name, :check_lock_discovery_degraded)
{:error, :discovery_degraded}

# delete tombstones are not live process locks and may not have owner fields
Meta.deleting?(meta) ->
report_lock_diagnostic(sup_name, :check_lock_deleting)
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