diff --git a/ircd/db.cc b/ircd/db.cc
index 68f9beb4f..54a0e800a 100644
--- a/ircd/db.cc
+++ b/ircd/db.cc
@@ -109,6 +109,8 @@ ircd::db::init::direct_io_test_file_path
 ircd::db::init::init()
 try
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	#ifdef IRCD_DB_HAS_ALLOCATOR
 	database::allocator::init();
 	#endif
@@ -1049,7 +1051,7 @@ ircd::db::for_each(database &d,
 {
 	std::unique_ptr<rocksdb::TransactionLogIterator> tit;
 	{
-		const ctx::uninterruptible ui;
+		const ctx::uninterruptible::nothrow ui;
 		throw_on_error
 		{
 			d.d->GetUpdatesSince(seq, &tit)
@@ -1543,11 +1545,17 @@ ircd::db::txn::checkpoint::checkpoint(txn &t)
 ircd::db::txn::checkpoint::~checkpoint()
 noexcept
 {
-	const ctx::uninterruptible ui;
+	const ctx::uninterruptible::nothrow ui;
 	if(likely(!std::uncaught_exceptions()))
-		throw_on_error { t.wb->PopSavePoint() };
+		throw_on_error
+		{
+			t.wb->PopSavePoint()
+		};
 	else
-		throw_on_error { t.wb->RollbackToSavePoint() };
+		throw_on_error
+		{
+			t.wb->RollbackToSavePoint()
+		};
 }
 
 //
@@ -1931,6 +1939,7 @@ ircd::db::_make_iterators(database &d,
 
 	std::vector<Iterator *> ret;
 	const ctx::stack_usage_assertion sua;
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->NewIterators(opts, handles, &ret)
@@ -2729,6 +2738,7 @@ ircd::db::setopt(column &column,
 		{ std::string{key}, std::string{val} }
 	};
 
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->SetOptions(c, options)
@@ -2746,10 +2756,15 @@ ircd::db::ingest(column &column,
 	opts.allow_global_seqno = true;
 	opts.allow_blocking_flush = true;
 
+	const ctx::uninterruptible::nothrow ui;
+	const auto &copts
+	{
+		d.d->GetOptions(c)
+	};
+
 	// Automatically determine if we can avoid issuing new sequence
 	// numbers by considering this ingestion as "backfill" of missing
 	// data which did actually exist but was physically removed.
-	const auto &copts{d.d->GetOptions(c)};
 	opts.ingest_behind = copts.allow_ingest_behind;
 	const std::vector<std::string> files
 	{
@@ -2757,7 +2772,6 @@ ircd::db::ingest(column &column,
 	};
 
 	const std::lock_guard lock{d.write_mutex};
-	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->IngestExternalFile(c, files, opts)
@@ -3002,6 +3016,8 @@ ircd::db::bytes(column &column,
                 const std::pair<string_view, string_view> &key,
                 const gopts &gopts)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	database &d(column);
 	database::column &c(column);
 	const rocksdb::Range range[1]
@@ -3032,6 +3048,8 @@ ircd::db::has(column &column,
 	auto opts(make_opts(gopts));
 	if(c.table_opts.filter_policy && (false))
 	{
+		const ctx::uninterruptible::nothrow ui;
+
 		auto opts(make_opts(gopts));
 		const scope_restore read_tier
 		{
@@ -3208,9 +3226,11 @@ ircd::db::prop_str
 ircd::db::property(const column &column,
                    const string_view &name)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	std::string ret;
-	database::column &c(mutable_cast(column));
 	database &d(mutable_cast(column));
+	database::column &c(mutable_cast(column));
 	if(!d.d->GetProperty(c, slice(name), &ret))
 		throw not_found
 		{
@@ -3228,9 +3248,11 @@ ircd::db::prop_int
 ircd::db::property(const column &column,
                    const string_view &name)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	uint64_t ret(0);
-	database::column &c(mutable_cast(column));
 	database &d(mutable_cast(column));
+	database::column &c(mutable_cast(column));
 	if(!d.d->GetIntProperty(c, slice(name), &ret))
 		throw not_found
 		{
@@ -3248,9 +3270,11 @@ ircd::db::prop_map
 ircd::db::property(const column &column,
                    const string_view &name)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	std::map<std::string, std::string> ret;
-	database::column &c(mutable_cast(column));
 	database &d(mutable_cast(column));
+	database::column &c(mutable_cast(column));
 	if(!d.d->GetMapProperty(c, slice(name), &ret))
 		ret.emplace(std::string{name}, property<std::string>(column, name));
 
@@ -3260,6 +3284,8 @@ ircd::db::property(const column &column,
 ircd::db::options
 ircd::db::getopt(const column &column)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	database &d(mutable_cast(column));
 	database::column &c(mutable_cast(column));
 	return options
@@ -3271,9 +3297,12 @@ ircd::db::getopt(const column &column)
 size_t
 ircd::db::bytes(const column &column)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	rocksdb::ColumnFamilyMetaData cfm;
 	database &d(mutable_cast(column));
 	database::column &c(mutable_cast(column));
+
 	assert(bool(c.handle));
 	d.d->GetColumnFamilyMetaData(c.handle.get(), &cfm);
 	return cfm.size;
@@ -3282,9 +3311,12 @@ ircd::db::bytes(const column &column)
 size_t
 ircd::db::file_count(const column &column)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	rocksdb::ColumnFamilyMetaData cfm;
 	database &d(mutable_cast(column));
 	database::column &c(mutable_cast(column));
+
 	assert(bool(c.handle));
 	d.d->GetColumnFamilyMetaData(c.handle.get(), &cfm);
 	return cfm.file_count;
@@ -3293,6 +3325,8 @@ ircd::db::file_count(const column &column)
 std::vector<std::string>
 ircd::db::files(const column &column)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	database::column &c(mutable_cast(column));
 	database &d(*c.d);
 
@@ -4666,7 +4700,7 @@ ircd::db::_seek(database::column &c,
                 const string_view &key,
                 const rocksdb::ReadOptions &ropts)
 {
-	const ctx::uninterruptible::nothrow ui;
+	const ctx::uninterruptible ui;
 	const ctx::stack_usage_assertion sua;
 
 	rocksdb::ColumnFamilyHandle *const &cf(c);
@@ -4791,7 +4825,7 @@ ircd::db::_seek(const vector_view<_read_op> &op,
 	assert(ret.size() == val.size());
 
 	const ctx::stack_usage_assertion sua;
-	const ctx::uninterruptible::nothrow ui;
+	const ctx::uninterruptible ui;
 
 	assert(op.size() >= 1);
 	database &d(std::get<0>(op[0]));
@@ -4874,10 +4908,11 @@ ircd::db::seek(database::column &c,
                const rocksdb::ReadOptions &opts,
                std::unique_ptr<rocksdb::Iterator> &it)
 {
+	const ctx::uninterruptible ui;
+	const ctx::stack_usage_assertion sua;
+
 	if(!it)
 	{
-		const ctx::uninterruptible::nothrow ui;
-
 		database &d(*c.d);
 		rocksdb::ColumnFamilyHandle *const &cf(c);
 		it.reset(d.d->NewIterator(opts, cf));
@@ -4893,8 +4928,6 @@ ircd::db::_seek(database::column &c,
                 rocksdb::Iterator &it)
 try
 {
-	const ctx::uninterruptible ui;
-
 	util::timer timer{util::timer::nostart};
 	if constexpr(RB_DEBUG_DB_SEEK)
 		timer = util::timer{};
@@ -4940,8 +4973,6 @@ ircd::db::_seek(database::column &c,
                 rocksdb::Iterator &it)
 try
 {
-	const ctx::stack_usage_assertion sua;
-
 	bool valid_it;
 	util::timer timer{util::timer::nostart};
 	if constexpr(RB_DEBUG_DB_SEEK)
@@ -4992,6 +5023,8 @@ rocksdb::Iterator &
 ircd::db::_seek_lower_(rocksdb::Iterator &it,
                        const string_view &sv)
 {
+	assert(!ctx::interruptible());
+
 	it.SeekForPrev(slice(sv));
 	return it;
 }
@@ -5001,6 +5034,8 @@ rocksdb::Iterator &
 ircd::db::_seek_upper_(rocksdb::Iterator &it,
                        const string_view &sv)
 {
+	assert(!ctx::interruptible());
+
 	it.Seek(slice(sv));
 	return it;
 }
@@ -5017,6 +5052,8 @@ rocksdb::Iterator &
 ircd::db::_seek_(rocksdb::Iterator &it,
                  const pos &p)
 {
+	assert(!ctx::interruptible());
+
 	switch(p)
 	{
 		case pos::NEXT:     it.Next();           break;
diff --git a/ircd/db_database.cc b/ircd/db_database.cc
index 5cd8a7a5a..253c1f7f9 100644
--- a/ircd/db_database.cc
+++ b/ircd/db_database.cc
@@ -102,6 +102,7 @@ ircd::db::sync(database &d)
 		sequence(d)
 	};
 
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->SyncWAL()
@@ -121,6 +122,7 @@ ircd::db::flush(database &d,
 		sequence(d)
 	};
 
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->FlushWAL(sync)
@@ -205,6 +207,8 @@ void
 ircd::db::check(database &d)
 {
 	assert(d.d);
+
+	const ctx::uninterruptible ui;
 	throw_on_error
 	{
 		d.d->VerifyChecksum()
@@ -218,6 +222,7 @@ ircd::db::check(database &d,
 	assert(file);
 	assert(d.d);
 
+	const ctx::uninterruptible ui;
 	const auto &opts
 	{
 		d.d->GetOptions()
@@ -255,6 +260,7 @@ void
 ircd::db::resume(database &d)
 {
 	assert(d.d);
+
 	const ctx::uninterruptible::nothrow ui;
 	const std::lock_guard lock
 	{
@@ -295,6 +301,7 @@ ircd::db::refresh(database &d)
 {
 	assert(d.d);
 
+	const ctx::uninterruptible ui;
 	throw_on_error
 	{
 		#ifdef IRCD_DB_HAS_SECONDARY
@@ -316,6 +323,7 @@ ircd::db::bgpause(database &d)
 {
 	assert(d.d);
 
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->PauseBackgroundWork()
@@ -339,6 +347,7 @@ ircd::db::bgcontinue(database &d)
 		name(d)
 	};
 
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d.d->ContinueBackgroundWork()
@@ -350,19 +359,20 @@ ircd::db::bgcancel(database &d,
                    const bool &blocking)
 {
 	assert(d.d);
+
 	log::debug
 	{
 		log, "[%s] Canceling all background work...",
 		name(d)
 	};
 
+	const ctx::uninterruptible::nothrow ui;
 	rocksdb::CancelAllBackgroundWork(d.d.get(), blocking);
 	if(!blocking)
 		return;
 
 	assert(d.env);
 	assert(d.env->st);
-	const ctx::uninterruptible::nothrow ui;
 	for(auto &pool : d.env->st->pool) if(pool)
 	{
 		log::debug
@@ -452,6 +462,8 @@ ircd::db::fdeletions(database &d,
                      const bool &enable,
                      const bool &force)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	if(enable)
 		throw_on_error
 		{
@@ -474,6 +486,7 @@ ircd::db::setopt(database &d,
 		{ std::string{key}, std::string{val} }
 	};
 
+	const ctx::uninterruptible ui;
 	throw_on_error
 	{
 		d.d->SetDBOptions(options)
@@ -543,6 +556,7 @@ ircd::db::loglevel(const database &d)
 ircd::db::options
 ircd::db::getopt(const database &d)
 {
+	const ctx::uninterruptible::nothrow ui;
 	return options
 	{
 		d.d->GetDBOptions()
@@ -573,17 +587,14 @@ ircd::db::file_count(const database &d)
 
 /// Get the list of WAL (Write Ahead Log) files.
 std::vector<std::string>
-ircd::db::wals(const database &cd)
+ircd::db::wals(const database &d)
 {
-	auto &d
-	{
-		mutable_cast(cd)
-	};
+	const ctx::uninterruptible::nothrow ui;
 
 	std::vector<std::unique_ptr<rocksdb::LogFile>> vec;
 	throw_on_error
 	{
-		d.d->GetSortedWalFiles(vec)
+		mutable_cast(d).d->GetSortedWalFiles(vec)
 	};
 
 	std::vector<std::string> ret(vec.size());
@@ -612,14 +623,15 @@ ircd::db::files(const database &d)
 /// most current list is to flush all columns first and ensure no database
 /// activity took place between the flushing and this query.
 std::vector<std::string>
-ircd::db::files(const database &cd,
+ircd::db::files(const database &d,
                 uint64_t &msz)
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	std::vector<std::string> ret;
-	auto &d(mutable_cast(cd));
 	throw_on_error
 	{
-		d.d->GetLiveFiles(ret, &msz, false)
+		mutable_cast(d).d->GetLiveFiles(ret, &msz, false)
 	};
 
 	return ret;
@@ -631,11 +643,12 @@ ircd::db::errors(const database &d)
 	return d.errors;
 }
 
+[[gnu::hot]]
 uint64_t
-ircd::db::sequence(const database &cd)
+ircd::db::sequence(const database &d)
 {
-	database &d(mutable_cast(cd));
-	return d.d->GetLatestSequenceNumber();
+	const ctx::critical_assertion ca;
+	return mutable_cast(d).d->GetLatestSequenceNumber();
 }
 
 rocksdb::Cache *
@@ -657,6 +670,7 @@ ircd::db::property(const database &cd,
 {
 	uint64_t ret(0);
 	database &d(mutable_cast(cd));
+	const ctx::uninterruptible::nothrow ui;
 	if(!d.d->GetAggregatedIntProperty(slice(name), &ret))
 		throw not_found
 		{
@@ -722,6 +736,7 @@ ircd::db::default_description
 	{ "default" }
 };
 
+[[gnu::hot]]
 ircd::db::database &
 ircd::db::database::get(column &column)
 {
@@ -729,6 +744,7 @@ ircd::db::database::get(column &column)
 	return *column.d;
 }
 
+[[gnu::hot]]
 const ircd::db::database &
 ircd::db::database::get(const column &column)
 {
@@ -1101,6 +1117,8 @@ try
 }()}
 ,d{[this]
 {
+	const ctx::uninterruptible::nothrow ui;
+
 	std::vector<rocksdb::ColumnFamilyHandle *> handles; // filled by DB::Open()
 	std::vector<rocksdb::ColumnFamilyDescriptor> columns(this->column_names.size());
 	std::transform(begin(this->column_names), end(this->column_names), begin(columns), []
@@ -1115,7 +1133,9 @@ try
 	{
 		log::notice
 		{
-			log, "Checking database @ `%s' columns[%zu]", path, columns.size()
+			log, "Checking database @ `%s' columns[%zu]",
+			path,
+			columns.size()
 		};
 
 		throw_on_error
@@ -1125,7 +1145,8 @@ try
 
 		log::info
 		{
-			log, "Database @ `%s' check complete", path
+			log, "Database @ `%s' check complete",
+			path
 		};
 	}
 
@@ -1230,6 +1251,7 @@ try
 ,uuid{[this]
 {
 	std::string ret;
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		d->GetDbIdentity(ret)
@@ -1240,6 +1262,7 @@ try
 ,checkpointer{[this]
 {
 	rocksdb::Checkpoint *checkpointer{nullptr};
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		rocksdb::Checkpoint::Create(this->d.get(), &checkpointer)
@@ -1593,6 +1616,7 @@ ircd::db::drop(database::column &c)
 		sequence(d)
 	};
 
+	const ctx::uninterruptible::nothrow ui;
 	throw_on_error
 	{
 		c.d->d->DropColumnFamily(c.handle.get())
@@ -3672,6 +3696,7 @@ ircd::db::database::sst::tool(const vector_view<const string_view> &args)
 ircd::db::database::sst::scan::scan(database &d,
                                     const string_view &fpath)
 {
+	const ctx::uninterruptible::nothrow ui;
 	const auto &opts
 	{
 		d.d->GetOptions()
@@ -3708,6 +3733,7 @@ ircd::db::database::sst::scan::scan(database &d,
                                     const string_view &fpath,
                                     const closure &call)
 {
+	const ctx::uninterruptible::nothrow ui;
 	const auto &opts
 	{
 		d.d->GetOptions()
@@ -3764,6 +3790,7 @@ ircd::db::database::sst::dump::dump(db::column column,
                                     const key_range &range,
                                     const string_view &path_)
 {
+	const ctx::uninterruptible::nothrow ui;
 	database::column &c(column);
 	const database &d(column);
 	std::string path
@@ -3850,6 +3877,7 @@ ircd::db::database::sst::info::vector::vector(const database &d)
 
 ircd::db::database::sst::info::vector::vector(const db::column &column)
 {
+	const ctx::uninterruptible::nothrow ui;
 	database::column &c(mutable_cast(column));
 	database &d(*c.d);
 
@@ -3895,8 +3923,8 @@ ircd::db::database::sst::info::vector::vector(const db::column &column)
 ircd::db::database::sst::info::info(const database &d_,
                                     const string_view &filename)
 {
-	auto &d(mutable_cast(d_));
 	const ctx::uninterruptible::nothrow ui;
+	auto &d(mutable_cast(d_));
 
 	std::vector<rocksdb::LiveFileMetaData> v;
 	d.d->GetLiveFilesMetaData(&v);
@@ -4023,13 +4051,14 @@ ircd::db::database::sst::info::operator=(rocksdb::TableProperties &&tp)
 // wal::info::vector
 //
 
-ircd::db::database::wal::info::vector::vector(const database &d_)
+ircd::db::database::wal::info::vector::vector(const database &d)
 {
-	auto &d{mutable_cast(d_)};
+	const ctx::uninterruptible::nothrow ui;
+
 	std::vector<std::unique_ptr<rocksdb::LogFile>> vec;
 	throw_on_error
 	{
-		d.d->GetSortedWalFiles(vec)
+		mutable_cast(d).d->GetSortedWalFiles(vec)
 	};
 
 	this->resize(vec.size());
@@ -4041,14 +4070,15 @@ ircd::db::database::wal::info::vector::vector(const database &d_)
 // wal::info::info
 //
 
-ircd::db::database::wal::info::info(const database &d_,
+ircd::db::database::wal::info::info(const database &d,
                                     const string_view &filename)
 {
-	auto &d{mutable_cast(d_)};
+	const ctx::uninterruptible::nothrow ui;
+
 	std::vector<std::unique_ptr<rocksdb::LogFile>> vec;
 	throw_on_error
 	{
-		d.d->GetSortedWalFiles(vec)
+		mutable_cast(d).d->GetSortedWalFiles(vec)
 	};
 
 	for(const auto &ptr : vec)