mirror of
https://github.com/mongodb/mongo.git
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743 lines
26 KiB
C++
743 lines
26 KiB
C++
// stat.cpp
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pch.h"
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#include "client/dbclient.h"
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#include "db/json.h"
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#include "../util/httpclient.h"
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#include "../util/text.h"
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#include "tool.h"
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#include <fstream>
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#include <iostream>
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#include <boost/program_options.hpp>
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namespace po = boost::program_options;
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namespace mongo {
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class Stat : public Tool {
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public:
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Stat() : Tool( "stat" , REMOTE_SERVER , "admin" ) {
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_sleep = 1;
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_http = false;
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_many = false;
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add_hidden_options()
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( "sleep" , po::value<int>() , "time to sleep between calls" )
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;
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add_options()
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("noheaders", "don't output column names")
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("rowcount,n", po::value<int>()->default_value(0), "number of stats lines to print (0 for indefinite)")
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("http", "use http instead of raw db connection")
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("discover" , "discover nodes and display stats for all" )
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("all" , "all optional fields" )
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;
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addPositionArg( "sleep" , 1 );
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_autoreconnect = true;
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}
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virtual void printExtraHelp( ostream & out ) {
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out << "usage: " << _name << " [options] [sleep time]" << endl;
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out << "sleep time: time to wait (in seconds) between calls" << endl;
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}
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virtual void printExtraHelpAfter( ostream & out ) {
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out << "\n";
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out << " Fields\n";
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out << " inserts \t- # of inserts per second\n";
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out << " query \t- # of queries per second\n";
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out << " update \t- # of updates per second\n";
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out << " delete \t- # of deletes per second\n";
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out << " getmore \t- # of get mores (cursor batch) per second\n";
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out << " command \t- # of commands per second\n";
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out << " flushes \t- # of fsync flushes per second\n";
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out << " mapped \t- amount of data mmaped (total data size) megabytes\n";
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out << " visze \t- virtual size of process in megabytes\n";
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out << " res \t- resident size of process in megabytes\n";
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out << " faults \t- # of pages faults per sec (linux only)\n";
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out << " locked \t- percent of time in global write lock\n";
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out << " idx miss \t- percent of btree page misses (sampled)\n";
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out << " qr|qw \t- queue lengths for clients waiting (read|write)\n";
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out << " ar|aw \t- active clients (read|write)\n";
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out << " netIn \t- network traffic in - bits\n";
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out << " netOut \t- network traffic out - bits\n";
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out << " conn \t- number of open connections\n";
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}
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BSONObj stats() {
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if ( _http ) {
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HttpClient c;
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HttpClient::Result r;
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string url;
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{
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stringstream ss;
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ss << "http://" << _host;
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if ( _host.find( ":" ) == string::npos )
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ss << ":28017";
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ss << "/_status";
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url = ss.str();
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}
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if ( c.get( url , &r ) != 200 ) {
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cout << "error (http): " << r.getEntireResponse() << endl;
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return BSONObj();
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}
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BSONObj x = fromjson( r.getBody() );
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BSONElement e = x["serverStatus"];
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if ( e.type() != Object ) {
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cout << "BROKEN: " << x << endl;
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return BSONObj();
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}
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return e.embeddedObjectUserCheck();
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}
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BSONObj out;
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if ( ! conn().simpleCommand( _db , &out , "serverStatus" ) ) {
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cout << "error: " << out << endl;
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return BSONObj();
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}
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return out.getOwned();
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}
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double diff( const string& name , const BSONObj& a , const BSONObj& b ) {
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BSONElement x = a.getFieldDotted( name.c_str() );
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BSONElement y = b.getFieldDotted( name.c_str() );
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if ( ! x.isNumber() || ! y.isNumber() )
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return -1;
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return ( y.number() - x.number() ) / _sleep;
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}
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double percent( const char * outof , const char * val , const BSONObj& a , const BSONObj& b ) {
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double x = ( b.getFieldDotted( val ).number() - a.getFieldDotted( val ).number() );
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double y = ( b.getFieldDotted( outof ).number() - a.getFieldDotted( outof ).number() );
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if ( y == 0 )
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return 0;
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double p = x / y;
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p = (double)((int)(p * 1000)) / 10;
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return p;
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}
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template<typename T>
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void _append( BSONObjBuilder& result , const string& name , unsigned width , const T& t ) {
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if ( name.size() > width )
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width = name.size();
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result.append( name , BSON( "width" << (int)width << "data" << t ) );
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}
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void _appendMem( BSONObjBuilder& result , const string& name , unsigned width , double sz ) {
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string unit = "m";
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if ( sz > 1024 ) {
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unit = "g";
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sz /= 1024;
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}
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if ( sz > 1024 ) {
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string s = str::stream() << (int)sz << unit;
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_append( result , name , width , s );
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return;
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}
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stringstream ss;
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ss << setprecision(3) << sz << unit;
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_append( result , name , width , ss.str() );
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}
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void _appendNet( BSONObjBuilder& result , const string& name , double diff ) {
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// I think 1000 is correct for megabit, but I've seen conflicting things (ERH 11/2010)
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const double div = 1000;
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string unit = "b";
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if ( diff >= div ) {
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unit = "k";
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diff /= div;
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}
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if ( diff >= div ) {
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unit = "m";
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diff /= div;
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}
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if ( diff >= div ) {
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unit = "g";
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diff /= div;
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}
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string out = str::stream() << (int)diff << unit;
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_append( result , name , 6 , out );
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}
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/**
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* BSON( <field> -> BSON( width : ### , data : XXX ) )
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*/
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BSONObj doRow( const BSONObj& a , const BSONObj& b ) {
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BSONObjBuilder result;
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if ( b["opcounters"].type() == Object ) {
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BSONObj ax = a["opcounters"].embeddedObject();
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BSONObj bx = b["opcounters"].embeddedObject();
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BSONObj ar = a["opcountersRepl"].isABSONObj() ? a["opcountersRepl"].embeddedObject() : BSONObj();
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BSONObj br = b["opcountersRepl"].isABSONObj() ? b["opcountersRepl"].embeddedObject() : BSONObj();
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BSONObjIterator i( bx );
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while ( i.more() ) {
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BSONElement e = i.next();
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if ( ar.isEmpty() || br.isEmpty() ) {
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_append( result , e.fieldName() , 6 , (int)diff( e.fieldName() , ax , bx ) );
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}
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else {
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string f = e.fieldName();
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int m = (int)diff( f , ax , bx );
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int r = (int)diff( f , ar , br );
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string myout;
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if ( f == "command" ) {
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myout = str::stream() << m << "|" << r;
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}
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else if ( f == "getmore" ) {
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myout = str::stream() << m;
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}
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else if ( m && r ) {
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// this is weird...
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myout = str::stream() << m << "|" << r;
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}
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else if ( m ) {
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myout = str::stream() << m;
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}
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else if ( r ) {
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myout = str::stream() << "*" << r;
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}
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else {
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myout = "*0";
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}
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_append( result , f , 6 , myout );
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}
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}
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}
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if ( b["backgroundFlushing"].type() == Object ) {
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BSONObj ax = a["backgroundFlushing"].embeddedObject();
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BSONObj bx = b["backgroundFlushing"].embeddedObject();
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_append( result , "flushes" , 6 , (int)diff( "flushes" , ax , bx ) );
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}
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if ( b.getFieldDotted("mem.supported").trueValue() ) {
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BSONObj bx = b["mem"].embeddedObject();
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BSONObjIterator i( bx );
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_appendMem( result , "mapped" , 6 , bx["mapped"].numberInt() );
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_appendMem( result , "vsize" , 6 , bx["virtual"].numberInt() );
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_appendMem( result , "res" , 6 , bx["resident"].numberInt() );
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if ( _all )
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_appendMem( result , "non-mapped" , 6 , bx["virtual"].numberInt() - bx["mapped"].numberInt() );
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}
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if ( b["extra_info"].type() == Object ) {
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BSONObj ax = a["extra_info"].embeddedObject();
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BSONObj bx = b["extra_info"].embeddedObject();
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if ( ax["page_faults"].type() || ax["page_faults"].type() )
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_append( result , "faults" , 6 , (int)diff( "page_faults" , ax , bx ) );
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}
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_append( result , "locked %" , 8 , percent( "globalLock.totalTime" , "globalLock.lockTime" , a , b ) );
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_append( result , "idx miss %" , 8 , percent( "indexCounters.btree.accesses" , "indexCounters.btree.misses" , a , b ) );
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if ( b.getFieldDotted( "globalLock.currentQueue" ).type() == Object ) {
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int r = b.getFieldDotted( "globalLock.currentQueue.readers" ).numberInt();
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int w = b.getFieldDotted( "globalLock.currentQueue.writers" ).numberInt();
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stringstream temp;
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temp << r << "|" << w;
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_append( result , "qr|qw" , 9 , temp.str() );
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}
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if ( b.getFieldDotted( "globalLock.activeClients" ).type() == Object ) {
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int r = b.getFieldDotted( "globalLock.activeClients.readers" ).numberInt();
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int w = b.getFieldDotted( "globalLock.activeClients.writers" ).numberInt();
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stringstream temp;
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temp << r << "|" << w;
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_append( result , "ar|aw" , 7 , temp.str() );
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}
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if ( b["network"].isABSONObj() ) {
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BSONObj ax = a["network"].embeddedObject();
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BSONObj bx = b["network"].embeddedObject();
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_appendNet( result , "netIn" , diff( "bytesIn" , ax , bx ) );
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_appendNet( result , "netOut" , diff( "bytesOut" , ax , bx ) );
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}
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_append( result , "conn" , 5 , b.getFieldDotted( "connections.current" ).numberInt() );
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if ( b["repl"].type() == Object ) {
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BSONObj x = b["repl"].embeddedObject();
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bool isReplSet = x["setName"].type() == String;
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stringstream ss;
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if ( isReplSet ) {
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string setName = x["setName"].String();
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_append( result , "set" , setName.size() , setName );
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}
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if ( x["ismaster"].trueValue() )
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ss << "M";
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else if ( x["secondary"].trueValue() )
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ss << "SEC";
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else if ( x["isreplicaset"].trueValue() )
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ss << "REC";
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else if ( isReplSet )
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ss << "UNK";
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else
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ss << "SLV";
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_append( result , "repl" , 4 , ss.str() );
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}
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else if ( b["shardCursorType"].type() == Object ) {
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// is a mongos
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// TODO: should have a better check
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_append( result , "repl" , 4 , "RTR" );
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}
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{
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struct tm t;
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time_t_to_Struct( time(0), &t , true );
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stringstream temp;
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temp << setfill('0') << setw(2) << t.tm_hour
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<< ":"
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<< setfill('0') << setw(2) << t.tm_min
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<< ":"
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<< setfill('0') << setw(2) << t.tm_sec;
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_append( result , "time" , 10 , temp.str() );
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}
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return result.obj();
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}
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virtual void preSetup() {
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if ( hasParam( "http" ) ) {
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_http = true;
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_noconnection = true;
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}
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if ( hasParam( "host" ) &&
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getParam( "host" ).find( ',' ) != string::npos ) {
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_noconnection = true;
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_many = true;
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}
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if ( hasParam( "discover" ) ) {
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_noconnection = true;
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_many = true;
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}
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}
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int run() {
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_sleep = getParam( "sleep" , _sleep );
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_all = hasParam( "all" );
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if ( _many )
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return runMany();
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return runNormal();
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}
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static void printHeaders( const BSONObj& o ) {
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BSONObjIterator i(o);
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while ( i.more() ) {
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BSONElement e = i.next();
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BSONObj x = e.Obj();
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cout << setw( x["width"].numberInt() ) << e.fieldName() << ' ';
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}
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cout << endl;
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}
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static void printData( const BSONObj& o , const BSONObj& headers ) {
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BSONObjIterator i(headers);
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while ( i.more() ) {
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BSONElement e = i.next();
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BSONObj h = e.Obj();
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int w = h["width"].numberInt();
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BSONElement data;
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{
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BSONElement temp = o[e.fieldName()];
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if ( temp.isABSONObj() )
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data = temp.Obj()["data"];
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}
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if ( data.type() == String )
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cout << setw(w) << data.String();
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else if ( data.type() == NumberDouble )
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cout << setw(w) << setprecision(3) << data.number();
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else if ( data.type() == NumberInt )
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cout << setw(w) << data.numberInt();
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else if ( data.eoo() )
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cout << setw(w) << "";
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else
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cout << setw(w) << "???";
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cout << ' ';
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}
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cout << endl;
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}
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int runNormal() {
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bool showHeaders = ! hasParam( "noheaders" );
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int rowCount = getParam( "rowcount" , 0 );
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int rowNum = 0;
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BSONObj prev = stats();
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if ( prev.isEmpty() )
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return -1;
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while ( rowCount == 0 || rowNum < rowCount ) {
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sleepsecs(_sleep);
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BSONObj now;
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try {
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now = stats();
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}
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catch ( std::exception& e ) {
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cout << "can't get data: " << e.what() << endl;
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continue;
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}
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if ( now.isEmpty() )
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return -2;
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try {
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BSONObj out = doRow( prev , now );
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if ( showHeaders && rowNum % 10 == 0 ) {
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printHeaders( out );
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}
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printData( out , out );
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}
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catch ( AssertionException& e ) {
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cout << "\nerror: " << e.what() << "\n"
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<< now
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<< endl;
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}
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prev = now;
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rowNum++;
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}
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return 0;
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}
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struct ServerState {
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ServerState() : lock( "Stat::ServerState" ) {}
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string host;
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scoped_ptr<boost::thread> thr;
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mongo::mutex lock;
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BSONObj prev;
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BSONObj now;
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time_t lastUpdate;
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vector<BSONObj> shards;
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string error;
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bool mongos;
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};
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static void serverThread( shared_ptr<ServerState> state ) {
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try {
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DBClientConnection conn( true );
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conn._logLevel = 1;
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string errmsg;
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if ( ! conn.connect( state->host , errmsg ) )
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state->error = errmsg;
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long long cycleNumber = 0;
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while ( ++cycleNumber ) {
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try {
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BSONObj out;
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if ( conn.simpleCommand( "admin" , &out , "serverStatus" ) ) {
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scoped_lock lk( state->lock );
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state->error = "";
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state->lastUpdate = time(0);
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state->prev = state->now;
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state->now = out.getOwned();
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}
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else {
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scoped_lock lk( state->lock );
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state->error = "serverStatus failed";
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state->lastUpdate = time(0);
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}
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if ( out["shardCursorType"].type() == Object ) {
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state->mongos = true;
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if ( cycleNumber % 10 == 1 ) {
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auto_ptr<DBClientCursor> c = conn.query( "config.shards" , BSONObj() );
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vector<BSONObj> shards;
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while ( c->more() ) {
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shards.push_back( c->next().getOwned() );
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}
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scoped_lock lk( state->lock );
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state->shards = shards;
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}
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}
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}
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catch ( std::exception& e ) {
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scoped_lock lk( state->lock );
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state->error = e.what();
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}
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sleepsecs( 1 );
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}
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}
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catch ( std::exception& e ) {
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cout << "serverThread (" << state->host << ") fatal error : " << e.what() << endl;
|
|
}
|
|
catch ( ... ) {
|
|
cout << "serverThread (" << state->host << ") fatal error" << endl;
|
|
}
|
|
}
|
|
|
|
typedef map<string,shared_ptr<ServerState> > StateMap;
|
|
|
|
bool _add( StateMap& threads , string host ) {
|
|
shared_ptr<ServerState>& state = threads[host];
|
|
if ( state )
|
|
return false;
|
|
|
|
state.reset( new ServerState() );
|
|
state->host = host;
|
|
state->thr.reset( new boost::thread( boost::bind( serverThread , state ) ) );
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param hosts [ "a.foo.com" , "b.foo.com" ]
|
|
*/
|
|
bool _addAll( StateMap& threads , const BSONObj& hosts ) {
|
|
BSONObjIterator i( hosts );
|
|
bool added = false;
|
|
while ( i.more() ) {
|
|
bool me = _add( threads , i.next().String() );
|
|
added = added || me;
|
|
}
|
|
return added;
|
|
}
|
|
|
|
bool _discover( StateMap& threads , const string& host , const shared_ptr<ServerState>& ss ) {
|
|
|
|
BSONObj info = ss->now;
|
|
|
|
bool found = false;
|
|
|
|
if ( info["repl"].isABSONObj() ) {
|
|
BSONObj x = info["repl"].Obj();
|
|
if ( x["hosts"].isABSONObj() )
|
|
if ( _addAll( threads , x["hosts"].Obj() ) )
|
|
found = true;
|
|
if ( x["passives"].isABSONObj() )
|
|
if ( _addAll( threads , x["passives"].Obj() ) )
|
|
found = true;
|
|
}
|
|
|
|
if ( ss->mongos ) {
|
|
for ( unsigned i=0; i<ss->shards.size(); i++ ) {
|
|
BSONObj x = ss->shards[i];
|
|
|
|
string errmsg;
|
|
ConnectionString cs = ConnectionString::parse( x["host"].String() , errmsg );
|
|
if ( errmsg.size() ) {
|
|
cerr << errmsg << endl;
|
|
continue;
|
|
}
|
|
|
|
vector<HostAndPort> v = cs.getServers();
|
|
for ( unsigned i=0; i<v.size(); i++ ) {
|
|
if ( _add( threads , v[i].toString() ) )
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
int runMany() {
|
|
StateMap threads;
|
|
|
|
|
|
{
|
|
string orig = getParam( "host" );
|
|
if ( orig == "" )
|
|
orig = "localhost:27017";
|
|
StringSplitter ss( orig.c_str() , "," );
|
|
while ( ss.more() ) {
|
|
string host = ss.next();
|
|
_add( threads , host );
|
|
}
|
|
}
|
|
|
|
sleepsecs(1);
|
|
|
|
int row = 0;
|
|
bool discover = hasParam( "discover" );
|
|
|
|
while ( 1 ) {
|
|
sleepsecs( _sleep );
|
|
|
|
// collect data
|
|
vector<Row> rows;
|
|
for ( map<string,shared_ptr<ServerState> >::iterator i=threads.begin(); i!=threads.end(); ++i ) {
|
|
scoped_lock lk( i->second->lock );
|
|
|
|
if ( i->second->error.size() ) {
|
|
rows.push_back( Row( i->first , i->second->error ) );
|
|
}
|
|
else if ( i->second->prev.isEmpty() || i->second->now.isEmpty() ) {
|
|
rows.push_back( Row( i->first ) );
|
|
}
|
|
else {
|
|
BSONObj out = doRow( i->second->prev , i->second->now );
|
|
rows.push_back( Row( i->first , out ) );
|
|
}
|
|
|
|
if ( discover && ! i->second->now.isEmpty() ) {
|
|
if ( _discover( threads , i->first , i->second ) )
|
|
break;
|
|
}
|
|
}
|
|
|
|
// compute some stats
|
|
unsigned longestHost = 0;
|
|
BSONObj biggest;
|
|
for ( unsigned i=0; i<rows.size(); i++ ) {
|
|
if ( rows[i].host.size() > longestHost )
|
|
longestHost = rows[i].host.size();
|
|
if ( rows[i].data.nFields() > biggest.nFields() )
|
|
biggest = rows[i].data;
|
|
}
|
|
|
|
{
|
|
// check for any headers not in biggest
|
|
|
|
// TODO: we put any new headers at end,
|
|
// ideally we would interleave
|
|
|
|
set<string> seen;
|
|
|
|
BSONObjBuilder b;
|
|
|
|
{
|
|
// iterate biggest
|
|
BSONObjIterator i( biggest );
|
|
while ( i.more() ) {
|
|
BSONElement e = i.next();
|
|
seen.insert( e.fieldName() );
|
|
b.append( e );
|
|
}
|
|
}
|
|
|
|
// now do the rest
|
|
for ( unsigned j=0; j<rows.size(); j++ ) {
|
|
BSONObjIterator i( rows[j].data );
|
|
while ( i.more() ) {
|
|
BSONElement e = i.next();
|
|
if ( seen.count( e.fieldName() ) )
|
|
continue;
|
|
seen.insert( e.fieldName() );
|
|
b.append( e );
|
|
}
|
|
|
|
}
|
|
|
|
biggest = b.obj();
|
|
|
|
}
|
|
|
|
// display data
|
|
|
|
cout << endl;
|
|
|
|
// header
|
|
if ( row++ % 5 == 0 && ! biggest.isEmpty() ) {
|
|
cout << setw( longestHost ) << "" << "\t";
|
|
printHeaders( biggest );
|
|
}
|
|
|
|
// rows
|
|
for ( unsigned i=0; i<rows.size(); i++ ) {
|
|
cout << setw( longestHost ) << rows[i].host << "\t";
|
|
if ( rows[i].err.size() )
|
|
cout << rows[i].err << endl;
|
|
else if ( rows[i].data.isEmpty() )
|
|
cout << "no data" << endl;
|
|
else
|
|
printData( rows[i].data , biggest );
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int _sleep;
|
|
bool _http;
|
|
bool _many;
|
|
bool _all;
|
|
|
|
struct Row {
|
|
Row( string h , string e ) {
|
|
host = h;
|
|
err = e;
|
|
}
|
|
|
|
Row( string h ) {
|
|
host = h;
|
|
}
|
|
|
|
Row( string h , BSONObj d ) {
|
|
host = h;
|
|
data = d;
|
|
}
|
|
string host;
|
|
string err;
|
|
BSONObj data;
|
|
};
|
|
};
|
|
|
|
}
|
|
|
|
int main( int argc , char ** argv ) {
|
|
mongo::Stat stat;
|
|
return stat.main( argc , argv );
|
|
}
|
|
|