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//
// On error inserting documents, traces back and shows where the document was dropped
//
function traceMissingDoc(coll, doc, mongos) {
if (mongos)
coll = mongos.getCollection(coll + "");
else
mongos = coll.getMongo();
var config = mongos.getDB("config");
var shards = config.shards.find().toArray();
for (var i = 0; i < shards.length; i++) {
shards[i].conn = new Mongo(shards[i].host);
}
var shardKeyPatt = config.collections.findOne({_id: coll + ""}).key;
// Project out the shard key
var shardKey = {};
for (var k in shardKeyPatt) {
if (doc[k] == undefined) {
jsTest.log("Shard key " + tojson(shardKey) + " not found in doc " + tojson(doc) +
", falling back to _id search...");
shardKeyPatt = {
_id: 1
};
shardKey = {
_id: doc['_id']
};
break;
}
shardKey[k] = doc[k];
}
if (doc['_id'] == undefined) {
jsTest.log("Id not found in doc " + tojson(doc) + " cannot trace oplog entries.");
return;
}
jsTest.log("Using shard key : " + tojson(shardKey));
var allOps = [];
for (var i = 0; i < shards.length; i++) {
var oplog = shards[i].conn.getCollection("local.oplog.rs");
if (!oplog.findOne()) {
oplog = shards[i].conn.getCollection("local.oplog.$main");
}
if (!oplog.findOne()) {
jsTest.log("No oplog was found on shard " + shards[i]._id);
continue;
}
var addKeyQuery = function(query, prefix) {
for (var k in shardKey) {
query[prefix + '.' + k] = shardKey[k];
}
return query;
};
var addToOps = function(cursor) {
cursor.forEach(function(doc) {
doc.shard = shards[i]._id;
doc.realTime = new Date(doc.ts.getTime() * 1000);
allOps.push(doc);
});
};
// Find ops
addToOps(oplog.find(addKeyQuery({op: 'i'}, 'o')));
var updateQuery = {
$or: [addKeyQuery({op: 'u'}, 'o2'), {op: 'u', 'o2._id': doc['_id']}]
};
addToOps(oplog.find(updateQuery));
addToOps(oplog.find({op: 'd', 'o._id': doc['_id']}));
}
var compareOps = function(opA, opB) {
return bsonWoCompare(opA.ts, opB.ts);
};
allOps.sort(compareOps);
print("Ops found for doc " + tojson(doc) + " on each shard:\n");
for (var i = 0; i < allOps.length; i++) {
printjson(allOps[i]);
}
return allOps;
}
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