From 2e9c4005b24c90a42167d2fdf197a855c5a11fee Mon Sep 17 00:00:00 2001
From: Henning Baldersheim <balder@yahoo-inc.com>
Date: Tue, 7 Feb 2023 11:07:57 +0100
Subject: Revert "Use steady_time for vdslib::NodeState MERGEOK"

---
 .../vespa/storage/storageserver/statemanager.cpp   | 44 ++++++++++++----------
 .../src/vespa/storage/storageserver/statemanager.h |  6 +--
 2 files changed, 28 insertions(+), 22 deletions(-)

(limited to 'storage')

diff --git a/storage/src/vespa/storage/storageserver/statemanager.cpp b/storage/src/vespa/storage/storageserver/statemanager.cpp
index 647cba52bfc..81961370ed3 100644
--- a/storage/src/vespa/storage/storageserver/statemanager.cpp
+++ b/storage/src/vespa/storage/storageserver/statemanager.cpp
@@ -9,14 +9,16 @@
 #include <vespa/metrics/metricset.h>
 #include <vespa/metrics/metrictimer.h>
 #include <vespa/metrics/valuemetric.h>
+#include <vespa/storageapi/messageapi/storagemessage.h>
 #include <vespa/vdslib/state/cluster_state_bundle.h>
 #include <vespa/vdslib/state/clusterstate.h>
 #include <vespa/vespalib/stllike/asciistream.h>
 #include <vespa/vespalib/util/exceptions.h>
 #include <vespa/vespalib/util/string_escape.h>
 #include <vespa/vespalib/util/stringfmt.h>
+
 #include <fstream>
-#include <ranges>
+#include <unistd.h>
 
 #include <vespa/log/log.h>
 LOG_SETUP(".state.manager");
@@ -69,7 +71,7 @@ StateManager::StateManager(StorageComponentRegister& compReg,
       _requested_almost_immediate_node_state_replies(false)
 {
     _nodeState->setMinUsedBits(58);
-    _nodeState->setStartTimestamp(_component.getClock().getSystemTime());
+    _nodeState->setStartTimestamp(_component.getClock().getTimeInSeconds().getTime());
     _component.registerStatusPage(*this);
     _component.registerMetric(*_metrics);
 }
@@ -133,9 +135,9 @@ StateManager::reportHtmlStatus(std::ostream& out,
             << "<h1>System state history</h1>\n"
             << "<table border=\"1\"><tr>"
             << "<th>Received at time</th><th>State</th></tr>\n";
-        for (const auto & it : std::ranges::reverse_view(_systemStateHistory)) {
-            out << "<tr><td>" << vespalib::to_string(vespalib::to_utc(it.first)) << "</td><td>"
-                << xml_content_escaped(it.second->getBaselineClusterState()->toString()) << "</td></tr>\n";
+        for (auto it = _systemStateHistory.rbegin(); it != _systemStateHistory.rend(); ++it) {
+            out << "<tr><td>" << it->first << "</td><td>"
+                << xml_content_escaped(it->second->getBaselineClusterState()->toString()) << "</td></tr>\n";
         }
         out << "</table>\n";
     }
@@ -144,7 +146,7 @@ StateManager::reportHtmlStatus(std::ostream& out,
 lib::Node
 StateManager::thisNode() const
 {
-    return { _component.getNodeType(), _component.getIndex() };
+    return lib::Node(_component.getNodeType(), _component.getIndex());
 }
 
 lib::NodeState::CSP
@@ -296,7 +298,7 @@ StateManager::enableNextClusterState()
         _reported_host_info_cluster_state_version = _systemState->getVersion();
     } // else: reported version updated upon explicit activation edge
     _nextSystemState.reset();
-    _systemStateHistory.emplace_back(_component.getClock().getMonotonicTime(), _systemState);
+    _systemStateHistory.emplace_back(_component.getClock().getTimeInMillis(), _systemState);
 }
 
 namespace {
@@ -390,7 +392,8 @@ StateManager::onGetNodeState(const api::GetNodeStateCommand::SP& cmd)
 {
     bool sentReply = false;
     if (cmd->getSourceIndex() != 0xffff) {
-        sentReply = sendGetNodeStateReplies(vespalib::steady_time::max(), cmd->getSourceIndex());
+        sentReply = sendGetNodeStateReplies(framework::MilliSecTime(0),
+                                            cmd->getSourceIndex());
     }
     std::shared_ptr<api::GetNodeStateReply> reply;
     {
@@ -401,13 +404,16 @@ StateManager::onGetNodeState(const api::GetNodeStateCommand::SP& cmd)
             && (*cmd->getExpectedState() == *_nodeState || sentReply)
             && is_up_to_date)
         {
-            vespalib::duration timeout = cmd->getTimeout();
+            int64_t msTimeout = vespalib::count_ms(cmd->getTimeout());
             LOG(debug, "Received get node state request with timeout of "
-                       "%f seconds. Scheduling to be answered in "
-                       "%f seconds unless a node state change "
+                       "%" PRId64 " milliseconds. Scheduling to be answered in "
+                       "%" PRId64 " milliseconds unless a node state change "
                        "happens before that time.",
-                vespalib::to_s(timeout), vespalib::to_s(timeout)*0.8);
-            TimeStateCmdPair pair(_component.getClock().getMonotonicTime() + timeout, cmd);
+                msTimeout, msTimeout * 800 / 1000);
+            TimeStateCmdPair pair(
+                    _component.getClock().getTimeInMillis()
+                    + framework::MilliSecTime(msTimeout * 800 / 1000),
+                    cmd);
             _queuedStateRequests.emplace_back(std::move(pair));
         } else {
             LOG(debug, "Answered get node state request right away since it "
@@ -491,14 +497,13 @@ StateManager::tick() {
     bool almost_immediate_replies = _requested_almost_immediate_node_state_replies.load(std::memory_order_relaxed);
     if (almost_immediate_replies) {
         _requested_almost_immediate_node_state_replies.store(false, std::memory_order_relaxed);
-        sendGetNodeStateReplies();
-    } else {
-        sendGetNodeStateReplies(_component.getClock().getMonotonicTime());
     }
+    framework::MilliSecTime time(almost_immediate_replies ? framework::MilliSecTime(0) : _component.getClock().getTimeInMillis());
+    sendGetNodeStateReplies(time);
 }
 
 bool
-StateManager::sendGetNodeStateReplies(vespalib::steady_time olderThanTime, uint16_t node)
+StateManager::sendGetNodeStateReplies(framework::MilliSecTime olderThanTime, uint16_t node)
 {
     std::vector<std::shared_ptr<api::GetNodeStateReply>> replies;
     {
@@ -506,8 +511,9 @@ StateManager::sendGetNodeStateReplies(vespalib::steady_time olderThanTime, uint1
         for (auto it = _queuedStateRequests.begin(); it != _queuedStateRequests.end();) {
             if (node != 0xffff && node != it->second->getSourceIndex()) {
                 ++it;
-            } else if (it->first < olderThanTime) {
-                LOG(debug, "Sending reply to msg with id %" PRIu64, it->second->getMsgId());
+            } else if (!olderThanTime.isSet() || it->first < olderThanTime) {
+                LOG(debug, "Sending reply to msg with id %" PRIu64,
+                    it->second->getMsgId());
 
                 replies.emplace_back(std::make_shared<api::GetNodeStateReply>(*it->second, *_nodeState));
                 auto eraseIt = it++;
diff --git a/storage/src/vespa/storage/storageserver/statemanager.h b/storage/src/vespa/storage/storageserver/statemanager.h
index 3605a0b1605..74b59875ff8 100644
--- a/storage/src/vespa/storage/storageserver/statemanager.h
+++ b/storage/src/vespa/storage/storageserver/statemanager.h
@@ -42,8 +42,8 @@ class StateManager : public NodeStateUpdater,
                      private vespalib::JsonStreamTypes
 {
     using ClusterStateBundle = lib::ClusterStateBundle;
-    using TimeStateCmdPair   = std::pair<vespalib::steady_time, api::GetNodeStateCommand::SP>;
-    using TimeSysStatePair   = std::pair<vespalib::steady_time, std::shared_ptr<const ClusterStateBundle>>;
+    using TimeStateCmdPair   = std::pair<framework::MilliSecTime, api::GetNodeStateCommand::SP>;
+    using TimeSysStatePair   = std::pair<framework::MilliSecTime, std::shared_ptr<const ClusterStateBundle>>;
 
     struct StateManagerMetrics;
 
@@ -109,7 +109,7 @@ private:
 
     void notifyStateListeners();
     bool sendGetNodeStateReplies(
-            vespalib::steady_time olderThanTime = vespalib::steady_time::max(),
+            framework::MilliSecTime olderThanTime = framework::MilliSecTime(0),
             uint16_t index = 0xffff);
     void mark_controller_as_having_observed_explicit_node_state(const std::unique_lock<std::mutex> &, uint16_t controller_index);
 
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