SERVER-29077 Rename MemberHeartbeatData in topology coordinator

Renamed MemberHeartbeatData to MemberData, renamed files to match,
In topology coordinatory, renamed _hbData to _memberData.  Renamed local
memberHeartbeatData variables to memberData.  Fixed a few files which
unnecessarily included member_data.h.

1 files changed, 166 insertions, 0 deletions

diff --git a/src/mongo/db/repl/member_data.cpp b/src/mongo/db/repl/member_data.cpp
new file mode 100644
index 00000000000..c59eb1c6ce6
--- /dev/null
+++ b/src/mongo/db/repl/member_data.cpp
@@ -0,0 +1,166 @@
+/**
+*    Copyright (C) 2014 MongoDB Inc.
+*
+*    This program is free software: you can redistribute it and/or  modify
+*    it under the terms of the GNU Affero General Public License, version 3,
+*    as published by the Free Software Foundation.
+*
+*    This program is distributed in the hope that it will be useful,b
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU Affero General Public License for more details.
+*
+*    You should have received a copy of the GNU Affero General Public License
+*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*    As a special exception, the copyright holders give permission to link the
+*    code of portions of this program with the OpenSSL library under certain
+*    conditions as described in each individual source file and distribute
+*    linked combinations including the program with the OpenSSL library. You
+*    must comply with the GNU Affero General Public License in all respects for
+*    all of the code used other than as permitted herein. If you modify file(s)
+*    with this exception, you may extend this exception to your version of the
+*    file(s), but you are not obligated to do so. If you do not wish to do so,
+*    delete this exception statement from your version. If you delete this
+*    exception statement from all source files in the program, then also delete
+*    it in the license file.
+*/
+
+#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kReplication
+
+#include "mongo/platform/basic.h"
+
+#include <climits>
+
+#include "mongo/db/repl/member_data.h"
+#include "mongo/db/repl/rslog.h"
+#include "mongo/util/log.h"
+
+namespace mongo {
+namespace repl {
+
+MemberData::MemberData() : _health(-1), _authIssue(false), _configIndex(-1), _isSelf(false) {
+    _lastResponse.setState(MemberState::RS_UNKNOWN);
+    _lastResponse.setElectionTime(Timestamp());
+    _lastResponse.setAppliedOpTime(OpTime());
+}
+
+bool MemberData::setUpValues(Date_t now, ReplSetHeartbeatResponse&& hbResponse) {
+    _health = 1;
+    if (_upSince == Date_t()) {
+        _upSince = now;
+    }
+    _authIssue = false;
+    _lastHeartbeat = now;
+    _lastUpdate = now;
+    _lastUpdateStale = false;
+    _updatedSinceRestart = true;
+
+    if (!hbResponse.hasState()) {
+        hbResponse.setState(MemberState::RS_UNKNOWN);
+    }
+    if (!hbResponse.hasElectionTime()) {
+        hbResponse.setElectionTime(_lastResponse.getElectionTime());
+    }
+    if (!hbResponse.hasAppliedOpTime()) {
+        hbResponse.setAppliedOpTime(_lastResponse.getAppliedOpTime());
+    }
+    // Log if the state changes
+    if (_lastResponse.getState() != hbResponse.getState()) {
+        log() << "Member " << _hostAndPort.toString() << " is now in state "
+              << hbResponse.getState().toString() << rsLog;
+    }
+
+    bool opTimeAdvanced = advanceLastAppliedOpTime(hbResponse.getAppliedOpTime(), now);
+    auto durableOpTime = hbResponse.hasDurableOpTime() ? hbResponse.getDurableOpTime() : OpTime();
+    opTimeAdvanced = advanceLastDurableOpTime(durableOpTime, now) || opTimeAdvanced;
+    _lastResponse = std::move(hbResponse);
+    return opTimeAdvanced;
+}
+
+void MemberData::setDownValues(Date_t now, const std::string& heartbeatMessage) {
+    _health = 0;
+    _upSince = Date_t();
+    _lastHeartbeat = now;
+    _authIssue = false;
+    _updatedSinceRestart = true;
+
+    if (_lastResponse.getState() != MemberState::RS_DOWN) {
+        log() << "Member " << _hostAndPort.toString() << " is now in state RS_DOWN" << rsLog;
+    }
+
+    _lastResponse = ReplSetHeartbeatResponse();
+    _lastResponse.setState(MemberState::RS_DOWN);
+    _lastResponse.setElectionTime(Timestamp());
+    _lastResponse.setAppliedOpTime(OpTime());
+    _lastResponse.setHbMsg(heartbeatMessage);
+    _lastResponse.setSyncingTo(HostAndPort());
+
+    // The _lastAppliedOpTime/_lastDurableOpTime fields don't get cleared merely by missing a
+    // heartbeat.
+}
+
+void MemberData::setAuthIssue(Date_t now) {
+    _health = 0;  // set health to 0 so that this doesn't count towards majority.
+    _upSince = Date_t();
+    _lastHeartbeat = now;
+    _authIssue = true;
+    _updatedSinceRestart = true;
+
+    if (_lastResponse.getState() != MemberState::RS_UNKNOWN) {
+        log() << "Member " << _hostAndPort.toString()
+              << " is now in state RS_UNKNOWN due to authentication issue." << rsLog;
+    }
+
+    _lastResponse = ReplSetHeartbeatResponse();
+    _lastResponse.setState(MemberState::RS_UNKNOWN);
+    _lastResponse.setElectionTime(Timestamp());
+    _lastResponse.setAppliedOpTime(OpTime());
+    _lastResponse.setHbMsg("");
+    _lastResponse.setSyncingTo(HostAndPort());
+}
+
+void MemberData::setLastAppliedOpTime(OpTime opTime, Date_t now) {
+    _lastUpdate = now;
+    _lastUpdateStale = false;
+    _lastAppliedOpTime = opTime;
+}
+
+void MemberData::setLastDurableOpTime(OpTime opTime, Date_t now) {
+    _lastUpdate = now;
+    _lastUpdateStale = false;
+    if (_lastAppliedOpTime < opTime) {
+        // TODO(russotto): We think this should never happen, rollback or no rollback.  Make this an
+        // invariant and see what happens.
+        log() << "Durable progress (" << opTime << ") is ahead of the applied progress ("
+              << _lastAppliedOpTime << ". This is likely due to a "
+                                       "rollback."
+              << " memberid: " << _memberId << " rid: " << _rid << " host "
+              << _hostAndPort.toString() << " previous durable progress: " << _lastDurableOpTime;
+    } else {
+        _lastDurableOpTime = opTime;
+    }
+}
+
+bool MemberData::advanceLastAppliedOpTime(OpTime opTime, Date_t now) {
+    _lastUpdate = now;
+    _lastUpdateStale = false;
+    if (_lastAppliedOpTime < opTime) {
+        setLastAppliedOpTime(opTime, now);
+        return true;
+    }
+    return false;
+}
+
+bool MemberData::advanceLastDurableOpTime(OpTime opTime, Date_t now) {
+    _lastUpdate = now;
+    _lastUpdateStale = false;
+    if (_lastDurableOpTime < opTime) {
+        setLastDurableOpTime(opTime, now);
+        return true;
+    }
+    return false;
+}
+
+}  // namespace repl
+}  // namespace mongo