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Code Issues Releases Activity

SERVER-3293 ignore quota for local database

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This commit is contained in:
Aaron 2011-07-12 13:45:32 -07:00
parent 175e039247
commit 1c434d10f9
2 changed files with 60 additions and 4 deletions
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17
db/database.cpp
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@ -192,22 +192,31 @@ namespace mongo {
return ret;
}
bool fileIndexExceedsQuota( const char *ns, int fileIndex, bool enforceQuota ) {
return
cmdLine.quota &&
enforceQuota &&
fileIndex >= cmdLine.quotaFiles &&
// we don't enforce the quota on "special" namespaces as that could lead to problems -- e.g.
// rejecting an index insert after inserting the main record.
!NamespaceString::special( ns ) &&
NamespaceString( ns ).db != "local";
}
MongoDataFile* Database::suitableFile( const char *ns, int sizeNeeded, bool preallocate, bool enforceQuota ) {
// check existing files
for ( int i=numFiles()-1; i>=0; i-- ) {
MongoDataFile* f = getFile( i );
if ( f->getHeader()->unusedLength >= sizeNeeded ) {
// we don't enforce the quota on "special" namespaces as that could lead to problems -- e.g.
// rejecting an index insert after inserting the main record.
if( cmdLine.quota && enforceQuota && i > cmdLine.quotaFiles && !NamespaceString::special(ns) )
if ( fileIndexExceedsQuota( ns, i-1, enforceQuota ) ) // NOTE i-1 is the value used historically for this check.
;
else
return f;
}
}
if( cmdLine.quota && enforceQuota && numFiles() >= cmdLine.quotaFiles && !NamespaceString::special(ns) )
if ( fileIndexExceedsQuota( ns, numFiles(), enforceQuota ) )
uasserted(12501, "quota exceeded");
// allocate files until we either get one big enough or hit maxSize

47
jstests/disk/quota.js Normal file
View File

@ -0,0 +1,47 @@
// Check functioning of --quotaFiles parameter, including with respect to SERVER-3293 ('local' database).
port = allocatePorts( 1 )[ 0 ];
baseName = "jstests_disk_quota";
dbpath = "/data/db/" + baseName;
m = startMongod( "--port", port, "--dbpath", "/data/db/" + baseName, "--quotaFiles", "1", "--smallfiles" );
db = m.getDB( baseName );
big = new Array( 10000 ).toString();
// Insert documents until quota is exhausted.
while( !db.getLastError() ) {
db[ baseName ].save( {b:big} );
}
printjson( db.getLastError() );
dotTwoDataFile = dbpath + "/" + baseName + ".2";
files = listFiles( dbpath );
for( i in files ) {
// Since only one data file is allowed, a .0 file is expected and a .1 file may be preallocated (SERVER-3410) but no .2 file is expected.
assert.neq( dotTwoDataFile, files[ i ].name );
}
dotTwoDataFile = dbpath + "/" + "local" + ".2";
// Check that quota does not apply to local db, and a .2 file can be created.
l = m.getDB( "local" )[ baseName ];
for( i = 0; i < 10000; ++i ) {
l.save( {b:big} );
assert( !db.getLastError() );
dotTwoFound = false;
if ( i % 100 != 0 ) {
continue;
}
files = listFiles( dbpath );
for( f in files ) {
if ( files[ f ].name == dotTwoDataFile ) {
dotTwoFound = true;
}
}
if ( dotTwoFound ) {
break;
}
}
assert( dotTwoFound );