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print("BEGIN currentop.js");
// test basic currentop functionality + querying of nested documents
t = db.jstests_currentop
t.drop();
for(i=0;i<100;i++) {
t.save({ "num": i });
}
// Make sure data is written before we start reading it in parallel shells.
db.getLastError();
print("count:" + t.count());
function ops(q) {
return db.currentOp(q).inprog;
}
print("start shell");
// sleep for a second for each (of 100) documents; can be killed in between documents & test should complete before 100 seconds
s1 = startParallelShell("db.jstests_currentop.count( { '$where': function() { sleep(1000); } } )");
print("sleep");
sleep(1000);
print("inprog:");
printjson(db.currentOp().inprog)
print()
sleep(1);
print("inprog:");
printjson(db.currentOp().inprog)
print()
// need to wait for read to start
print("wait have some ops");
assert.soon( function(){
return ops( { "lockType": "r", "ns": "test.jstests_currentop" } ).length +
ops({ "lockType": "R", "ns": "test.jstests_currentop" }).length >= 1;
}, "have_some_ops");
print("ok");
s2 = startParallelShell( "db.jstests_currentop.update( { '$where': function() { sleep(1000); } }, { 'num': 1 }, false, true )" );
o = [];
function f() {
o = ops({ "ns": "test.jstests_currentop" });
printjson(o);
var writes = ops({ "lockType": "w", "ns": "test.jstests_currentop" }).length;
var readops = ops({ "lockType": "r", "ns": "test.jstests_currentop" });
print("readops:");
printjson(readops);
var reads = readops.length;
print("total: " + o.length + " w: " + writes + " r:" + reads);
return o.length > writes && o.length > reads;
}
print("go");
assert.soon( f, "f" );
// avoid waiting for the operations to complete (if soon succeeded)
for(var i in o) {
db.killOp(o[i].opid);
}
start = new Date();
s1();
s2();
// don't want to pass if timeout killed the js function
assert( ( new Date() ) - start < 30000 );
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