diff --git a/helio b/helio
index b786e8270..1695b3241 160000
--- a/helio
+++ b/helio
@@ -1 +1 @@
-Subproject commit b786e8270fe2a02cdc259d3ea14f93cff0b8b72b
+Subproject commit 1695b324146b1b1341fa46fa3e35c694cd04e14c
diff --git a/src/facade/dragonfly_listener.cc b/src/facade/dragonfly_listener.cc
index a5d378053..1a3e97622 100644
--- a/src/facade/dragonfly_listener.cc
+++ b/src/facade/dragonfly_listener.cc
@@ -287,7 +287,7 @@ void Listener::PostShutdown() {
 }
 
 void Listener::OnConnectionStart(util::Connection* conn) {
-  unsigned id = conn->socket()->proactor()->GetIndex();
+  unsigned id = conn->socket()->proactor()->GetPoolIndex();
   DCHECK_LT(id, per_thread_.size());
 
   facade::Connection* facade_conn = static_cast<facade::Connection*>(conn);
@@ -313,7 +313,7 @@ void Listener::OnConnectionStart(util::Connection* conn) {
 
 void Listener::OnConnectionClose(util::Connection* conn) {
   // TODO: We do not account for connections migrated to other threads. This is a rare case.
-  unsigned id = conn->socket()->proactor()->GetIndex();
+  unsigned id = conn->socket()->proactor()->GetPoolIndex();
   DCHECK_LT(id, per_thread_.size());
   auto& pth = per_thread_[id];
 
diff --git a/src/server/conn_context.cc b/src/server/conn_context.cc
index 0b357da6d..d9d91f323 100644
--- a/src/server/conn_context.cc
+++ b/src/server/conn_context.cc
@@ -141,7 +141,7 @@ vector<unsigned> ChangeSubscriptions(bool pattern, CmdArgList args, bool to_add,
   auto& sinfo = *conn->conn_state.subscribe_info.get();
   auto& local_store = pattern ? sinfo.patterns : sinfo.channels;
 
-  int32_t tid = util::ProactorBase::GetIndex();
+  int32_t tid = util::ProactorBase::me()->GetPoolIndex();
   DCHECK_GE(tid, 0);
 
   ChannelStoreUpdater csu{pattern, to_add, conn, uint32_t(tid)};
diff --git a/src/server/dflycmd.cc b/src/server/dflycmd.cc
index 28be2dbb3..edb7a0397 100644
--- a/src/server/dflycmd.cc
+++ b/src/server/dflycmd.cc
@@ -217,7 +217,7 @@ void DflyCmd::Thread(CmdArgList args, ConnectionContext* cntx) {
 
   if (args.size() == 1) {  // DFLY THREAD : returns connection thread index and number of threads.
     rb->StartArray(2);
-    rb->SendLong(ProactorBase::GetIndex());
+    rb->SendLong(ProactorBase::me()->GetPoolIndex());
     rb->SendLong(long(pool->size()));
     return;
   }
@@ -230,7 +230,7 @@ void DflyCmd::Thread(CmdArgList args, ConnectionContext* cntx) {
   }
 
   if (num_thread < pool->size()) {
-    if (int(num_thread) != ProactorBase::GetIndex()) {
+    if (int(num_thread) != ProactorBase::me()->GetPoolIndex()) {
       cntx->conn()->Migrate(pool->at(num_thread));
     }
 
diff --git a/src/server/engine_shard_set.cc b/src/server/engine_shard_set.cc
index 8d9d336f0..c5f6a3797 100644
--- a/src/server/engine_shard_set.cc
+++ b/src/server/engine_shard_set.cc
@@ -317,8 +317,8 @@ EngineShard::EngineShard(util::ProactorBase* pb, mi_heap_t* heap)
     : queue_(kQueueLen),
       txq_([](const Transaction* t) { return t->txid(); }),
       mi_resource_(heap),
-      db_slice_(pb->GetIndex(), GetFlag(FLAGS_cache_mode), this) {
-  fiber_q_ = MakeFiber([this, index = pb->GetIndex()] {
+      db_slice_(pb->GetPoolIndex(), GetFlag(FLAGS_cache_mode), this) {
+  fiber_q_ = MakeFiber([this, index = pb->GetPoolIndex()] {
     ThisFiber::SetName(absl::StrCat("shard_queue", index));
     queue_.Run();
   });
@@ -355,14 +355,14 @@ void EngineShard::StartPeriodicFiber(util::ProactorBase* pb) {
   if (clock_cycle_ms == 0)
     clock_cycle_ms = 1;
 
-  fiber_periodic_ = MakeFiber([this, index = pb->GetIndex(), period_ms = clock_cycle_ms] {
+  fiber_periodic_ = MakeFiber([this, index = pb->GetPoolIndex(), period_ms = clock_cycle_ms] {
     ThisFiber::SetName(absl::StrCat("shard_periodic", index));
     RunPeriodic(std::chrono::milliseconds(period_ms));
   });
 }
 
 void EngineShard::InitThreadLocal(ProactorBase* pb, bool update_db_time) {
-  CHECK(shard_ == nullptr) << pb->GetIndex();
+  CHECK(shard_ == nullptr) << pb->GetPoolIndex();
 
   mi_heap_t* data_heap = ServerState::tlocal()->data_heap();
   void* ptr = mi_heap_malloc_aligned(data_heap, sizeof(EngineShard), alignof(EngineShard));
diff --git a/src/server/journal/journal.cc b/src/server/journal/journal.cc
index 07e190520..48a2ce9d1 100644
--- a/src/server/journal/journal.cc
+++ b/src/server/journal/journal.cc
@@ -29,7 +29,7 @@ Journal::Journal() {
 }
 
 void Journal::StartInThread() {
-  journal_slice.Init(unsigned(ProactorBase::GetIndex()));
+  journal_slice.Init(unsigned(ProactorBase::me()->GetPoolIndex()));
 
   ServerState::tlocal()->set_journal(this);
   EngineShard* shard = EngineShard::tlocal();
diff --git a/src/server/main_service.cc b/src/server/main_service.cc
index ccec59e67..68cf13e6d 100644
--- a/src/server/main_service.cc
+++ b/src/server/main_service.cc
@@ -251,8 +251,8 @@ void SendMonitor(const std::string& msg) {
   const auto& monitor_repo = ServerState::tlocal()->Monitors();
   const auto& monitors = monitor_repo.monitors();
   if (!monitors.empty()) {
-    VLOG(1) << "thread " << util::ProactorBase::GetIndex() << " sending monitor message '" << msg
-            << "' for " << monitors.size();
+    VLOG(1) << "thread " << ProactorBase::me()->GetPoolIndex() << " sending monitor message '"
+            << msg << "' for " << monitors.size();
 
     for (auto monitor_conn : monitors) {
       // never preempts, so we can iterate safely.
@@ -1815,8 +1815,8 @@ void Service::EvalInternal(CmdArgList args, const EvalArgs& eval_args, Interpret
     });
 
     if (*sid != ServerState::tlocal()->thread_index()) {
-      VLOG(1) << "Migrating connection " << cntx->conn() << " from " << ProactorBase::GetIndex()
-              << " to " << *sid;
+      VLOG(1) << "Migrating connection " << cntx->conn() << " from "
+              << ProactorBase::me()->GetPoolIndex() << " to " << *sid;
       cntx->conn()->RequestAsyncMigration(shard_set->pool()->at(*sid));
     }
   } else {
diff --git a/src/server/server_state.cc b/src/server/server_state.cc
index 92b70c3d7..e53fcab0f 100644
--- a/src/server/server_state.cc
+++ b/src/server/server_state.cc
@@ -37,7 +37,7 @@ ServerState::Stats& ServerState::Stats::operator+=(const ServerState::Stats& oth
 void MonitorsRepo::Add(facade::Connection* connection) {
   VLOG(1) << "register connection "
           << " at address 0x" << std::hex << (const void*)connection << " for thread "
-          << util::ProactorBase::GetIndex();
+          << util::ProactorBase::me()->GetPoolIndex();
 
   monitors_.push_back(connection);
 }
diff --git a/src/server/snapshot.cc b/src/server/snapshot.cc
index c72f25477..bf59c52ea 100644
--- a/src/server/snapshot.cc
+++ b/src/server/snapshot.cc
@@ -176,7 +176,7 @@ void SliceSnapshot::Join() {
 // Serializes all the entries with version less than snapshot_version_.
 void SliceSnapshot::IterateBucketsFb(const Cancellation* cll) {
   {
-    auto fiber_name = absl::StrCat("SliceSnapshot-", ProactorBase::GetIndex());
+    auto fiber_name = absl::StrCat("SliceSnapshot-", ProactorBase::me()->GetPoolIndex());
     ThisFiber::SetName(std::move(fiber_name));
   }
 
diff --git a/src/server/test_utils.cc b/src/server/test_utils.cc
index 26eb3302b..26e3d6909 100644
--- a/src/server/test_utils.cc
+++ b/src/server/test_utils.cc
@@ -539,7 +539,7 @@ bool BaseFamilyTest::IsLocked(DbIndex db_index, std::string_view key) const {
 }
 
 string BaseFamilyTest::GetId() const {
-  int32 id = ProactorBase::GetIndex();
+  int32 id = ProactorBase::me()->GetPoolIndex();
   CHECK_GE(id, 0);
   return absl::StrCat("IO", id);
 }