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src/Coordination/KeeperServer.cpp

@@ -329,6 +329,10 @@ void KeeperServer::launchRaftServer(const Poco::Util::AbstractConfiguration & co
     params.return_method_ = nuraft::raft_params::async_handler;
 
     nuraft::asio_service::options asio_opts{};
+
+    /// If asio worker threads fail in any way, NuRaft will stop to make any progress
+    /// For that reason we need to supress out of memory exceptions in such threads
+    /// TODO: use `get_active_workers` to detect when we have no active workers to abort
     asio_opts.worker_start_ = [](uint32_t /*worker_id*/)
     {
         LockMemoryExceptionInThread::addUniqueLock(VariableContext::Global);