mongo shell启动配置文件.mongorc.js（三）
//~/.mongorc.js//show at begin
var compliment = ["attractive", "intelligent", "like batman"];
var index = Math.floor(Math.random()*3);
print("Hello, you're looking particularly " + compliment + " today!");
//change the prompt
prompt = function(){
if (typeof db == "undefined") {
return "(nodb)> ";
}
// Check the last db operation
try {
db.runCommand({getLastError: 1});
}
catch (e) {
print(e);
}
return db + "> ";
}
//show all shard's chunks
function my_show_shards() {
var config_db = db.getSiblingDB("config");
var collections = {};
var shards = {};
var shard_it = config_db.chunks.find().snapshot();
while (shard_it.hasNext()) {
next_item = shard_it.next();
collections).replace(/\"/g, "")] = 1;
shards).replace(/\"/g, "")] = 1;
}
var list_collections = [];
var list_shards = [];
for (item in collections) {
list_collections.push(item);
}
for (item in shards) {
list_shards.push(item);
}
list_collections.forEach(function(collec) {
list_shards.forEach(function(item) {
obj = {};
obj["shard"] = item;
obj["ns"] = collec;
it = config_db.chunks.find(obj);
print(collec, item, it.count());
})
})
}
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