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visits member for 4 years, 5 months
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2d
comment Automatically sign all commits with git
It is possible with new git with commit.gpgsign=true setting.
Jun
24
comment dump tcp connections without tcpdump
@MatthewIfe, And how one defines "installed". This argument can be used against such oversimplified policy.
Jun
20
comment dump tcp connections without tcpdump
Isn't this script a new software (so is not to be installed in the system)?
Feb
27
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
You probably using only 2 disks. I was using 3 devices, of which one was always online and two others were only available periodically. For this use case you need to have two bitmaps (track sectors pending to be written to the second device and the third). With only one bitmap you can't efficiently re-add a device to always-degraded RAID. Multiple bitmaps is a feature that is unlikely to be implemented - it is optimisation for use case when RAID stays degraded for prolonged time.
Aug
1
comment How to edit TCP window size from iptables?
I'm playing with traffic shaping currently and looking for various ways to limit inbound TCP traffic. I think capping the receive window + adding some delay (tc qdisc ... netem delay ...) can more or less cleanly set the speed of receiving without crude things like intentionally dropping valid packets.
Jun
6
comment What is the IPv6 equivalent to IPv4 RFC1918 addresses?
At least one project relies on fc00::/8: Cjdns
Jun
6
comment Convenient public IPv6 test addresses
64 bytes from 2600::: icmp_seq=1 ttl=52 time=207 ms - works
Jun
6
comment Best practice for picking convenient IPv6 addresses for a few hosts on an isolated LAN
Note: FC00::/8 is used by Cjdns, maybe by other such networks. See other answer for better alternative to prevent address clashes if there will be need to merge networks somehow.
Jun
6
comment Convenient public IPv6 test addresses
Works, but I would prefer them to be like 2001::8888 or even 2001::2001
Jul
6
comment Torque jobs does not enter “E” state (unless “qrun”)
I see nothing strange in qstat -f output. Where to look? (attached it to the question).
Jul
5
comment Torque jobs does not enter “E” state (unless “qrun”)
Yes, scheduler is running (basic Torque scheduler, not maui). Attaching the scheduler log.
May
6
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
Can DRBD 1. Handle multiple local data sources (like RAID) and resync them, 2. Be ready for the case when most nodes are offline (and efficiently resync them when they go online)?
May
6
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
With non-nbd thing it is the same.
May
6
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
I the problem is that there are multiple removed parts and only one write-intent bitmap, so if one of parts is almost constantly missing, write-intent bitmap is not cleaned while resyncing. Solution will be separate write-intent bitmap for each of missing part.
Apr
12
comment Torque jobs does not enter “E” state (unless “qrun”)
Running everything on single system. How can all that /etc/{hosts,passwd,group,whatever} affect it, especially without any loud log messages? Is there something like "debug log" or other thing where I can look why is it holding back the task?
Apr
11
comment Torque jobs does not enter “E” state (unless “qrun”)
@ajdecon, No, restarting changes nothing.
Feb
23
comment Linux buffer cache effect on IO writes?
May be it's #12309?
Jan
31
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
Experimented again, after full sync up together removed and immediately re-added. The same: it start from the beginning.
Jan
31
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
Can't write-intent bitmap be used to help, for example, the unreliable re-syncronisation (it interrupts often)?
Jan
31
comment Why mdadm's RAID-1 is resyncing from scratch despite of the bitmap?
OK, I'll experiment with full resync and immediate remove-add.