From 993c556000a414011626770540678948f16eaa9e Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期三, 02 六月 2021 17:40:50 +0800
Subject: [PATCH] center restart with new shm; set center node ssn.
---
box/node_center.cpp | 208 ++++++++++++++++++++++++++++++++++++++++-----------
1 files changed, 162 insertions(+), 46 deletions(-)
diff --git a/box/node_center.cpp b/box/node_center.cpp
index cefb138..b285c9f 100644
--- a/box/node_center.cpp
+++ b/box/node_center.cpp
@@ -16,7 +16,22 @@
* =====================================================================================
*/
#include "node_center.h"
+#include "json.h"
#include "log.h"
+
+using ssjson::Json;
+
+namespace
+{
+std::string Join(const std::string &parent, const std::string &child)
+{
+ return parent + kTopicSep + child;
+}
+const std::string kTopicCenterRoot = "#center";
+const std::string kTopicNode = Join(kTopicCenterRoot, "node");
+const std::string kTopicNodeOnline = Join(kTopicNode, "online");
+const std::string kTopicNodeOffline = Join(kTopicNode, "offline");
+} // namespace
ProcIndex ProcRecords::Put(const ProcId &proc_id, const MQId ssn)
{
@@ -42,7 +57,7 @@
{
auto pos = msgs_.find(id);
if (pos != msgs_.end()) {
- ShmMsg(pos->second).Free();
+ pos->second.Free();
msgs_.erase(pos);
} else {
LOG_TRACE() << "ignore late free request.";
@@ -55,8 +70,9 @@
return;
}
// LOG_FUNCTION;
+ const size_t total = msgs_.size();
time_to_clean_ = now + 1;
- int64_t limit = std::max(10000ul, msgs_.size() / 10);
+ int64_t limit = std::max(10000ul, total / 10);
int64_t n = 0;
auto it = msgs_.begin();
while (it != msgs_.end() && --limit > 0) {
@@ -67,49 +83,67 @@
++n;
};
int n = now - msg.timestamp();
- if (n < 10) {
+ if (msg.Count() == 0) {
+ Free();
+ } else if (n > NodeTimeoutSec()) {
+ Free();
+ } else {
++it;
- } else if (msg.Count() == 0) {
- Free();
- } else if (n > 60) {
- Free();
}
}
if (n > 0) {
- LOG_DEBUG() << "~~~~~~~~~~~~~~~~ auto release msgs: " << n;
+ LOG_DEBUG() << "~~~~~~~~~~~~~~~~ auto release msgs: " << n << '/' << total;
}
}
void MsgRecords::DebugPrint() const
{
- LOG_DEBUG() << "msgs : " << size();
+ LOG_TRACE() << "msgs : " << size();
int i = 0;
int total_count = 0;
for (auto &kv : msgs_) {
- MsgI msg(kv.second);
+ auto &msg = kv.second;
total_count += msg.Count();
- LOG_TRACE() << " " << i++ << ": msg id: " << kv.first << ", offset: " << kv.second << ", count: " << msg.Count() << ", size: " << msg.Size();
+ LOG_TRACE() << " " << i++ << ": msg id: " << kv.first << ", offset: " << kv.second.Offset() << ", count: " << msg.Count() << ", size: " << msg.Size();
}
- LOG_DEBUG() << "total count: " << total_count;
+ LOG_TRACE() << "total count: " << total_count;
}
// NodeCenter::ProcState
-void NodeCenter::ProcState::PutOffline(const int64_t offline_time)
+void NodeCenter::NodeInfo::PutOffline(const int64_t offline_time)
{
- timestamp_ = NowSec() - offline_time;
- flag_ = kStateOffline;
+ state_.timestamp_ = NowSec() - offline_time;
+ state_.flag_ = kStateOffline;
+
+ Json json;
+ json.put("proc_id", proc_.proc_id());
+ center_.Publish(shm_, kTopicNodeOffline, json.dump());
}
-void NodeCenter::ProcState::UpdateState(const int64_t now, const int64_t offline_time, const int64_t kill_time)
+void NodeCenter::NodeInfo::UpdateState(const int64_t now, const int64_t offline_time, const int64_t kill_time)
{
- auto diff = now - timestamp_;
- LOG_DEBUG() << "state " << this << " diff: " << diff;
+ auto old = state_.flag_;
+ auto diff = now - state_.timestamp_;
+ auto publish = [this](const std::string &topic) {
+ if (proc_.proc_id().empty()) { return; } // node init, ignore.
+ Json json;
+ json.put("proc_id", proc_.proc_id());
+ center_.Publish(shm_, topic, json.dump());
+ };
+
+ LOG_TRACE() << "node " << proc_.proc_id() << " timeout count: " << diff;
if (diff < offline_time) {
- flag_ = kStateNormal;
+ state_.flag_ = kStateNormal;
+ if (old != state_.flag_) {
+ publish(kTopicNodeOnline);
+ }
} else if (diff < kill_time) {
- flag_ = kStateOffline;
+ state_.flag_ = kStateOffline;
+ if (old != state_.flag_) {
+ publish(kTopicNodeOffline);
+ }
} else {
- flag_ = kStateKillme;
+ state_.flag_ = kStateKillme;
}
}
@@ -126,11 +160,11 @@
auto UpdateRegInfo = [&](Node &node) {
node->state_.timestamp_ = NowSec() - offline_time_;
- node->state_.UpdateState(NowSec(), offline_time_, kill_time_);
+ node->UpdateState(NowSec(), offline_time_, kill_time_);
// create sockets.
try {
- ShmSocket tmp(shm, true, ssn, 16);
+ ShmSocket tmp(shm, ssn, eCreate);
node->addrs_.emplace(ssn, tmp.AbsAddr());
return true;
} catch (...) {
@@ -140,7 +174,7 @@
auto PrepareProcInit = [&](Node &node) {
bool r = false;
- ShmMsg init_msg;
+ ShmMsg init_msg(shm);
DEFER1(init_msg.Release());
MsgProcInit body;
auto head = InitMsgHead(GetType(body), id(), ssn);
@@ -149,7 +183,7 @@
SendAllocMsg(socket, {ssn, node->addrs_[ssn]}, init_msg);
};
- Node node(new NodeInfo);
+ Node node(new NodeInfo(*this, shm));
if (UpdateRegInfo(node) && PrepareProcInit(node)) {
reply |= (node->addrs_[ssn] << 4);
nodes_[ssn] = node;
@@ -175,6 +209,57 @@
{
RecordMsg(msg);
return socket.Send(dest, msg);
+}
+
+NodeCenter::Node NodeCenter::GetNode(const MQId mq_id)
+{
+ Node node;
+ auto ssn = mq_id - (mq_id % 10);
+ auto pos = nodes_.find(ssn);
+ if (pos != nodes_.end()) {
+ node = pos->second;
+ }
+ return node;
+}
+
+bool NodeCenter::PassRemoteRequestToLocal(const MQInfo &dest, BHMsgHead &head, const std::string &body_content, ShmSocket::RecvCB &&cb)
+{
+ Node node(GetNode(dest.id_));
+ if (!node || !Valid(*node)) {
+ LOG_ERROR() << id() << " pass remote request, dest not found.";
+ return false;
+ }
+
+ ShmSocket &sender(DefaultSender(node->shm_));
+ auto route = head.add_route();
+ route->set_mq_id(sender.id());
+ route->set_abs_addr(sender.AbsAddr());
+
+ ShmMsg msg(node->shm_);
+ if (!msg.Make(head, body_content)) { return false; }
+ DEFER1(msg.Release(););
+ RecordMsg(msg);
+ return sender.Send(dest, msg, head.msg_id(), std::move(cb));
+}
+
+bool NodeCenter::PassRemoteReplyToLocal(const MQInfo &dest, BHMsgHead &head, const std::string &body_content)
+{
+ Node node(GetNode(dest.id_));
+ if (!node) {
+ LOG_ERROR() << id() << " pass remote reply , ssn not found.";
+ return false;
+ }
+ auto offset = node->addrs_[dest.id_];
+ if (offset != dest.offset_) {
+ LOG_ERROR() << id() << " pass remote reply, dest address not match";
+ return false;
+ }
+
+ ShmMsg msg(node->shm_);
+ if (!msg.Make(head, body_content)) { return false; }
+ DEFER1(msg.Release(););
+ RecordMsg(msg);
+ return DefaultSender(node->shm_).Send(dest, msg);
}
void NodeCenter::OnAlloc(ShmSocket &socket, const int64_t val)
@@ -205,7 +290,7 @@
if (!FindMq()) { return; }
auto size = GetAllocSize((val >> 52) & MaskBits(8));
- MsgI new_msg;
+ MsgI new_msg(socket.shm());
if (new_msg.Make(size)) {
// 31bit proc index, 28bit id, ,4bit cmd+flag
int64_t reply = (new_msg.Offset() << 32) | (msg_id << 4) | EncodeCmd(eCmdAllocReply0);
@@ -248,7 +333,7 @@
auto &node = pos->second;
try {
for (int i = 0; i < msg.extra_mq_num(); ++i) {
- ShmSocket tmp(BHomeShm(), true, head.ssn_id() + i + 1, 16);
+ ShmSocket tmp(node->shm_, head.ssn_id() + i + 1, eCreate);
node->addrs_.emplace(tmp.id(), tmp.AbsAddr());
auto addr = reply.add_extra_mqs();
addr->set_mq_id(tmp.id());
@@ -271,33 +356,33 @@
MQId ssn = head.ssn_id();
// when node restart, ssn will change,
// and old node will be removed after timeout.
- auto UpdateRegInfo = [&](Node &node) {
- node->proc_.Swap(msg.mutable_proc());
- node->state_.timestamp_ = head.timestamp();
- node->state_.UpdateState(NowSec(), offline_time_, kill_time_);
- };
-
auto pos = nodes_.find(ssn);
if (pos == nodes_.end()) {
return MakeReply(eInvalidInput, "invalid session.");
}
- // update proc info
- Node &node = pos->second;
- UpdateRegInfo(node);
- LOG_DEBUG() << "node (" << head.proc_id() << ") ssn (" << ssn << ")";
-
+ // try to remove old session
auto old = online_node_addr_map_.find(head.proc_id());
if (old != online_node_addr_map_.end()) { // old session
auto &old_ssn = old->second;
if (old_ssn != ssn) {
- nodes_[old_ssn]->state_.PutOffline(offline_time_);
+ nodes_[old_ssn]->PutOffline(offline_time_);
+
LOG_DEBUG() << "put node (" << nodes_[old_ssn]->proc_.proc_id() << ") ssn (" << old->second << ") offline";
old_ssn = ssn;
}
} else {
online_node_addr_map_.emplace(head.proc_id(), ssn);
}
+
+ // update proc info
+ Node &node = pos->second;
+ node->proc_.Swap(msg.mutable_proc());
+ node->state_.timestamp_ = head.timestamp();
+ node->UpdateState(NowSec(), offline_time_, kill_time_);
+
+ LOG_DEBUG() << "node (" << head.proc_id() << ") ssn (" << ssn << ")";
+
return MakeReply(eSuccess);
} catch (...) {
return MakeReply(eError, "register node error.");
@@ -309,7 +394,7 @@
return HandleMsg(
head, [&](Node node) -> MsgCommonReply {
NodeInfo &ni = *node;
- ni.state_.PutOffline(offline_time_);
+ ni.PutOffline(offline_time_);
return MakeReply(eSuccess);
});
}
@@ -338,7 +423,7 @@
return HandleMsg(head, [&](Node node) {
NodeInfo &ni = *node;
ni.state_.timestamp_ = head.timestamp();
- ni.state_.UpdateState(NowSec(), offline_time_, kill_time_);
+ ni.UpdateState(NowSec(), offline_time_, kill_time_);
auto &info = msg.proc();
if (!info.public_info().empty()) {
@@ -469,8 +554,8 @@
NodeCenter::Clients NodeCenter::DoFindClients(const std::string &topic)
{
Clients dests;
- auto Find1 = [&](const std::string &t) {
- auto pos = subscribe_map_.find(topic);
+ auto Find1 = [&](const std::string &exact) {
+ auto pos = subscribe_map_.find(exact);
if (pos != subscribe_map_.end()) {
auto &clients = pos->second;
for (auto &cli : clients) {
@@ -489,7 +574,7 @@
// Find1(std::string()); // sub all.
break;
} else {
- Find1(topic.substr(0, pos));
+ Find1(topic.substr(0, pos - 1));
}
}
return dests;
@@ -521,7 +606,7 @@
auto it = nodes_.begin();
while (it != nodes_.end()) {
auto &cli = *it->second;
- cli.state_.UpdateState(now, offline_time_, kill_time_);
+ cli.UpdateState(now, offline_time_, kill_time_);
if (cli.state_.flag_ == kStateKillme) {
RemoveNode(it->second);
it = nodes_.erase(it);
@@ -560,8 +645,39 @@
}
for (auto &addr : node->addrs_) {
- cleaner_(addr.first);
+ auto &id = addr.first;
+ auto r = ShmSocket::Remove(node->shm_, id);
+ LOG_DEBUG() << "remove mq " << id << (r ? " ok" : " failed");
}
node->addrs_.clear();
+}
+
+void NodeCenter::Publish(SharedMemory &shm, const Topic &topic, const std::string &content)
+{
+ try {
+ // LOG_DEBUG() << "center publish: " << topic << ": " << content;
+ Clients clients(DoFindClients(topic));
+ if (clients.empty()) { return; }
+
+ MsgPublish pub;
+ pub.set_topic(topic);
+ pub.set_data(content);
+ BHMsgHead head(InitMsgHead(GetType(pub), id(), 0));
+ MsgI msg(shm);
+ if (msg.Make(head, pub)) {
+ DEFER1(msg.Release());
+ RecordMsg(msg);
+
+ for (auto &cli : clients) {
+ auto node = cli.weak_node_.lock();
+ if (node && node->state_.flag_ == kStateNormal) {
+ DefaultSender(shm).Send({cli.mq_id_, cli.mq_abs_addr_}, msg);
+ }
+ }
+ }
+
+ } catch (...) {
+ LOG_ERROR() << "center publish error.";
+ }
}
\ No newline at end of file
--
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