I have been using Poderosa as a SSH client for quite a few days.

I think it’s quite better than Putty especially if you are prefer tabbed windows like me.

And the divided panel feature of Poderosa is also quite nice.

Just wondering how can I miss such a nice tool for so long.

P.S. But if you are die hard Putty fan, then then there is also Putty Connection Manager that may make your day.

I just learned something hard way today.

I have a collection, lets call it foo_collection. The data format of that collection is something like this:

{
	file: "filename1",
	started: "Sat Feb 20 2010 04:15:02 GMT-0500 (EST)",
	ended: "Sat Feb 20 2010 04:15:04 GMT-0500 (EST)"
}

Initially, the key “file” is used as normal index

db.ensureIndex({file: 1});

Later on, I had to change the index from normal to unique. So, I did:

db.ensureIndex({file: 1}, {unique: true});

This didn’t work because, the collection already contained multiple similar values of file key. And MongoDB console also doesn’t show any error or any message when the above command is run.

It should have been:

db.ensureIndex({file: 1}, {unique: true, dropDups: true});

Again, it  should be noted that the above command will delete all the duplicate entries with the indexed key. So, use with caution.

I know this was kind of childish mistake but wanted to share so, someone reading this post won’t repeat it again.

Update: You can also check if db.ensureIndex() is working or not by calling db.getLastError() and you can also do the same from driver level by setting “safe” option. (Credit: Kristina)