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if --maxconns is lower than system can handle, lower limit SERVER-2056

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This commit is contained in:
Eliot Horowitz 2010-11-19 04:30:45 -05:00
parent f9d7cdab63
commit e23fab4200
1 changed files with 21 additions and 5 deletions
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26
util/message.cpp
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@ -699,10 +699,13 @@ namespace mongo {
int getClientId(){ int getClientId(){
return clientId.get(); return clientId.get();
} }
const int DEFAULT_MAX_CONN = 20000;
const int MAX_MAX_CONN = 20000;
int getMaxConnections(){ int getMaxConnections(){
#ifdef _WIN32 #ifdef _WIN32
return 20000; return DEFAULT_MAX_CONN;
#else #else
struct rlimit limit; struct rlimit limit;
assert( getrlimit(RLIMIT_NOFILE,&limit) == 0 ); assert( getrlimit(RLIMIT_NOFILE,&limit) == 0 );
@ -715,17 +718,30 @@ namespace mongo {
<< " max conn: " << max << " max conn: " << max
<< endl; << endl;
if ( max > 20000 ) if ( max > MAX_MAX_CONN )
max = 20000; max = MAX_MAX_CONN;
return max; return max;
#endif #endif
} }
void checkTicketNumbers(){ void checkTicketNumbers(){
connTicketHolder.resize( getMaxConnections() ); int want = getMaxConnections();
int current = connTicketHolder.outof();
if ( current != DEFAULT_MAX_CONN ){
if ( current < want ) {
// they want fewer than they can handle
// which is fine
log(1) << " only allowing " << current << " connections" << endl;
return;
}
if ( current > want ) {
log() << " --maxConns too high, can only handle " << want << endl;
}
}
connTicketHolder.resize( want );
} }
TicketHolder connTicketHolder(20000); TicketHolder connTicketHolder(DEFAULT_MAX_CONN);
} // namespace mongo } // namespace mongo