I just got up and went to check sync progress for my first ever Monero sync.

The xterm in which I had launched monerod in the foreground had the following output at the end:

2015-Mar-29 06:43:34.867898 [P2P3][46.166.188.212:14630 INC]Sync data returned unknown top block: 354494 -> 496973 [142479 blocks (98 days) behind] 
SYNCHRONIZATION started
Killed

So I look in syslog and find a load of stuff about being out of memory:

Mar 29 06:44:04 rosti kernel: [12411960.385984]  [<ffffffff8216d68d>] out_of_memory+0x4cd/0x510
Mar 29 06:44:04 rosti kernel: [12411960.386247] Out of memory: Kill process 7956 (bitmonerod) score 641 or sacrifice child
Mar 29 06:44:04 rosti kernel: [12411960.386249] Killed process 7956 (bitmonerod) total-vm:6039844kB, anon-rss:5153036kB, file-rss:0kB

This is on my workstation with 8 GiB RAM.  Is this a known issue?

Just use the blockchain branch:

https://github.com/tewinget/bitmonero/tree/blockchain

Thanks.  I was familiar with the concept of an OOM killer.  I'm a newb at Monero, not Unix Linux.  So I was really asking if bitmonerod was expected to be a memory hog.


Holy shit, it keeps the **whole blockchain** in memory!  This software is even more primitive than I thought.

I didn't have any swap as I didn't want to wear out my laptop's SSD.  I've now added a 2TB USB3 disk as encrypted swap while I'm playing with Monero.

thanks for this.

In reality It is a good thing for us. Think about it.

I have never seen more short sighted people than in this scene. They literally are worse than corporate raiders and give corrupt politicians a run for their money.

I was a computer expert a few years back and honestly had problems installing the wallet(s) on my Mac. I did finally get it installed but didn't have faith in the installation due to so many problems I experienced. (I got the blockchain downloaded no problem.) I was only able to run the wallet by (excuse my lack of terms here) double clicking an exe file, not from an actual installation. (Something about my Mac environment stopped me from being able to do a true install and it was in the instructions but I couldn't get past it.) So, I didn't want to chance using it. I moved half my XMR's from Poloniex to Mintpal and the latter are history (and it was a nice chunk for me). Rather, those were history as I got them
returned a few weeks back, as did others. Anyway, Had there been an online wallet or even a wallet less problematic on my Mac, I wouldn't have moved any to Mintpal - but my bad as I didn't research the place. It was literally like within a week or two of the move!

I've mined BTC, run a full node, worked in IT, etc. so I really should have figured out the wallet problem within a few hours, didn't, so gave up. I went beyond a typical user install imo.

Suffice to say, there is a whole world of users out there who want a GUI (nothing command line except for higher functionality) due to ease of use. Knowing I was a computer expert and should have figured it out I can understand how lack of a GUI is really holding people back (at least if they experienced problems on install like me, Windows I hadn't heard of being problematic.)

IAS

That means, no 10,000 Moneroj for a  pizza.

Linux mint. I was just using the standard package manager aptget. It didn't install dependencies automatically.

Ok. Probably a wrong config somewhere, or you got to fiddle with packages and what actually solved your issues isn't exactly what you thought, because aptitude is just a front-end for APT (the software that does apt-get and co).

Before anybody gets the idea that Monero is very difficult to use I would like to tell a story from the Drooling Masses©, that be me.

I use windows, what else, and installed Monero with the help of the kind and patient people ITT last June.  There is nobody noobier than me.  I was also able to install and run a miner, update the client and use simple wallet.

I imagine things will get easier going forward.