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/**
* Copyright (C) 2008 10gen 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/>.
*/
#include "pch.h"
#include "rs.h"
#include "health.h"
#include "../../util/background.h"
#include "../../client/dbclient.h"
#include "../commands.h"
#include "../../util/concurrency/value.h"
#include "../../util/concurrency/task.h"
#include "../../util/mongoutils/html.h"
#include "../../util/goodies.h"
#include "../../util/ramlog.h"
#include "../helpers/dblogger.h"
#include "connections.h"
namespace mongo {
/* decls for connections.h */
ScopedConn::M& ScopedConn::_map = *(new ScopedConn::M());
mutex ScopedConn::mapMutex("ScopedConn::mapMutex");
}
namespace mongo {
using namespace mongoutils::html;
using namespace bson;
static RamLog _rsLog;
Tee *rsLog = &_rsLog;
string ago(time_t t) {
if( t == 0 ) return "";
time_t x = time(0) - t;
stringstream s;
if( x < 180 ) {
s << x << " sec";
if( x != 1 ) s << 's';
}
else if( x < 3600 ) {
s.precision(2);
s << x / 60.0 << " mins";
}
else {
s.precision(2);
s << x / 3600.0 << " hrs";
}
return s.str();
}
void ReplSet::Member::summarizeAsHtml(stringstream& s) const {
s << tr();
{
stringstream u;
u << "http://" << h().host() << ':' << (h().port() + 1000) << "/_replSet";
s << td( a(u.str(), "", fullName()) );
}
double h = hbinfo().health;
bool ok = h > 0;
s << td(h);
s << td(ago(hbinfo().upSince));
{
string h;
time_t hb = hbinfo().lastHeartbeat;
if( hb == 0 ) h = "never";
else h = ago(hb) + " ago";
s << td(h);
}
s << td(config().votes);
s << td(ReplSet::stateAsStr(state()));
s << td( red(hbinfo().lastHeartbeatMsg,!ok) );
s << _tr();
}
string ReplSet::stateAsHtml(MemberState s) {
if( s == STARTUP ) return a("", "serving still starting up, or still trying to initiate the set", "STARTUP");
if( s == PRIMARY ) return a("", "this server thinks it is primary", "PRIMARY");
if( s == SECONDARY ) return a("", "this server thinks it is a secondary (slave mode)", "SECONDARY");
if( s == RECOVERING ) return a("", "recovering/resyncing; after recovery usually auto-transitions to secondary", "RECOVERING");
if( s == FATAL ) return a("", "something bad has occurred and server is not completely offline with regard to the replica set. fatal error.", "FATAL");
if( s == STARTUP2 ) return a("", "loaded config, still determining who is primary", "STARTUP2");
return "";
}
string ReplSet::stateAsStr(MemberState s) {
if( s == STARTUP ) return "STARTUP";
if( s == PRIMARY ) return "PRIMARY";
if( s == SECONDARY ) return "SECONDARY";
if( s == RECOVERING ) return "RECOVERING";
if( s == FATAL ) return "FATAL";
if( s == STARTUP2 ) return "STARTUP2";
return "";
}
extern time_t started;
void ReplSet::summarizeAsHtml(stringstream& s) const {
s << table(0, false);
s << tr("Set name:", _name);
s << tr("Majority up:", elect.aMajoritySeemsToBeUp()?"yes":"no" );
s << _table();
const char *h[] = {"Member", "Up",
"<a title=\"length of time we have been continuously connected to the other member with no reconnects\">cctime</a>",
"<a title=\"when this server last received a heartbeat response - includes error code responses\">Last heartbeat</a>",
"Votes", "State", "Status", 0};
s << table(h);
/* this is to sort the member rows by their ordinal _id, so they show up in the same
order on all the different web ui's; that is less confusing for the operator. */
map<int,string> mp;
{
stringstream s;
/* self row */
s << tr() << td(_self->fullName()) <<
td("1") <<
td(ago(started)) <<
td("(self)") <<
td(ToString(_self->config().votes)) <<
td(stateAsHtml(_myState));
s << td( _self->lhb() );
s << _tr();
mp[_self->hbinfo().id()] = s.str();
}
Member *m = head();
while( m ) {
stringstream s;
m->summarizeAsHtml(s);
mp[m->hbinfo().id()] = s.str();
m = m->next();
}
for( map<int,string>::const_iterator i = mp.begin(); i != mp.end(); i++ )
s << i->second;
s << _table();
}
static int repeats(const vector<const char *>& v, int i) {
for( int j = i-1; j >= 0 && j+8 > i; j-- ) {
if( strcmp(v[i]+20,v[j]+20) == 0 ) {
for( int x = 1; ; x++ ) {
if( j+x == i ) return j;
if( i+x>=(int) v.size() ) return -1;
if( strcmp(v[i+x]+20,v[j+x]+20) ) return -1;
}
return -1;
}
}
return -1;
}
static string clean(const vector<const char *>& v, int i, string line="") {
if( line.empty() ) line = v[i];
if( i > 0 && strncmp(v[i], v[i-1], 11) == 0 )
return string(" ") + line.substr(11);
return v[i];
}
/*static bool isWarning(const char *line) {
const char *p = strstr(line, "replSet ");
if( p ) {
p += 8;
return startsWith(p, "warning") || startsWith(p, "error");
}
return false;
}*/
static string color(string line) {
string s = str::after(line, "replSet ");
if( str::startsWith(s, "warning") || startsWith(s, "error") )
return red(line);
if( str::startsWith(s, "info") ) {
if( str::endsWith(s, " up\n") )
return green(line);
if( str::endsWith(s, " down\n") )
return yellow(line);
return blue(line);
}
return line;
}
void fillRsLog(stringstream& s) {
bool first = true;
s << "<pre>\n";
vector<const char *> v = _rsLog.get();
for( int i = 0; i < (int)v.size(); i++ ) {
assert( strlen(v[i]) > 20 );
int r = repeats(v, i);
if( r < 0 ) {
s << color( clean(v,i) );
} else {
stringstream x;
x << string(v[i], 0, 20);
int nr = (i-r);
int last = i+nr-1;
for( ; r < i ; r++ ) x << '.';
if( 1 ) {
stringstream r;
if( nr == 1 ) r << "repeat last line";
else r << "repeats last " << nr << " lines; ends " << string(v[last]+4,0,15);
first = false; s << a("", r.str(), clean(v,i,x.str()));
}
else s << x.str();
s << '\n';
i = last;
}
}
s << "</pre>\n";
}
void ReplSet::summarizeStatus(BSONObjBuilder& b) const {
Member *m =_members.head();
vector<BSONObj> v;
// add self
{
HostAndPort h(getHostName(), cmdLine.port);
v.push_back(
BSON( "name" << h.toString() << "self" << true <<
"errmsg" << _self->lhb() ) );
}
while( m ) {
BSONObjBuilder bb;
bb.append("name", m->fullName());
bb.append("health", m->hbinfo().health);
bb.append("uptime", (unsigned) (m->hbinfo().upSince ? (time(0)-m->hbinfo().upSince) : 0));
bb.appendDate("lastHeartbeat", m->hbinfo().lastHeartbeat);
bb.append("errmsg", m->lhb());
v.push_back(bb.obj());
m = m->next();
}
b.append("set", name());
b.appendDate("date", time(0));
b.append("myState", _myState);
b.append("members", v);
}
}
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