Re: Reminder: don't listen on public addresses

2017-02-26 Thread Vladimir Yudovin
I would add: use SSL and internode certificate authentication (password for CQL goes withou saying, of course). Best regards, Vladimir Yudovin, Winguzone - Cloud Cassandra Hosting On Fri, 20 Jan 2017 14:14:56 -0500 Richard L. Burton III wrote I'm oft

Understanding of proliferation of sstables during a repair

2017-02-26 Thread Seth Edwards
Hello, We just ran a repair on a keyspace using TWCS and a mixture of TTLs .This caused a large proliferation of sstables and compactions. There is likely a lot of entropy in this keyspace. I am trying to better understand why this is. I've also read that you may not want to run repairs on short

Re: Understanding of proliferation of sstables during a repair

2017-02-26 Thread Benjamin Roth
Hi Seth, Repairs can create a lot of tiny SSTables. I also encountered the creation of so many sstables that the node died because of TMOF. At that time the affected nodes were REALLY inconsistent. One reason can be immense inconsistencies spread over many partition(-ranges) with a lot of subrang

Re: Understanding of proliferation of sstables during a repair

2017-02-26 Thread Seth Edwards
This makes a lot more sense. What does TMOF stand for? On Sun, Feb 26, 2017 at 1:01 PM, Benjamin Roth wrote: > Hi Seth, > > Repairs can create a lot of tiny SSTables. I also encountered the creation > of so many sstables that the node died because of TMOF. At that time the > affected nodes were

Re: How does cassandra achieve Linearizability?

2017-02-26 Thread Kant Kodali
Is there way to apply the commits from this https://github.com/bdeggleston/cassandra/tree/CASSANDRA-6246-trunk branch to Apache Cassandra 3.10 branch? I thought I could just merge these two branches but looks like there are several trunks so I am confused which trunk I am merging to? I want to merg

Re: Understanding of proliferation of sstables during a repair

2017-02-26 Thread Benjamin Roth
Too many open files. Which is 100k by default and we had >40k sstables. Normally the are around 500-1000. Am 27.02.2017 02:40 schrieb "Seth Edwards" : > This makes a lot more sense. What does TMOF stand for? > > On Sun, Feb 26, 2017 at 1:01 PM, Benjamin Roth > wrote: > >> Hi Seth, >> >> Repairs