Date: Tue, 13 Mar 2012 22:19:28 +0100 From: Phil Regnauld <regnauld@x0.dk> To: Mikolaj Golub <to.my.trociny@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Issue with hast replication Message-ID: <20120313211928.GJ25709@macbook.bluepipe.net> In-Reply-To: <86fwdcw7tm.fsf@kopusha.home.net> References: <20120311185457.GB1684@macbook.bluepipe.net> <861uoyvpzh.fsf@kopusha.home.net> <20120311220911.GD1684@macbook.bluepipe.net> <20120312143127.GM12975@macbook.bluepipe.net> <86k42pu0tb.fsf@kopusha.home.net> <20120312232223.GG12975@macbook.bluepipe.net> <86fwdcw7tm.fsf@kopusha.home.net>
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Mikolaj Golub (to.my.trociny) writes: > > Ok. So it is send(2). I suppose the network driver could generate the > error. Did you tell what network adaptor you had? Not yet. bce0: <HP NC382i DP Multifunction Gigabit Server Adapter (C0)> mem 0xf4000000-0xf5ffffff irq 16 at device 0.0 on pci2 bce0: ASIC (0x57092003); Rev (C0); Bus (PCIe x2, 2.5Gbps); B/C (4.6.4); Bufs (RX:2;TX:2;PG:8); Flags (SPLT|MSI|MFW); MFW (NCSI 1.0.3) > PR> No obvious errors there either, but again what should I look out for ? > > I would look at sysctl -a dev.<nic> statistics and try to find if there is correlation > between ENOMEM failures and growing of error counters. 0 errors: dev.bce.0.l2fhdr_error_count: 0 dev.bce.0.stat_emac_tx_stat_dot3statsinternalmactransmiterrors: 0 dev.bce.0.stat_Dot3StatsCarrierSenseErrors: 0 dev.bce.0.stat_Dot3StatsFCSErrors: 0 dev.bce.0.stat_Dot3StatsAlignmentErrors: 0 > Looking at buffer usage from 'netstat -nax' output ran during synchronization > (on both hosts) could provide useful info where the bottleneck is. top -HS > output might be useful too. Good point. I'll have to attempt to recreate the problem, as the volume has replicated without errors. Typical. Cheers, Philhome | help
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