[sheepdog-users] 答复: sheepdog(v0.9.1) cluster will crash when a node running sheep v0.7.9 want to join the cluster.

[Hitoshi Mitake]

At Tue, 20 Jan 2015 13:02:00 +0800,
redtone wrote:
> 
> I do not want to run v0.7.x and v0.9.x at the same time. 
> 
> But the mistake to run v.0.7.x will cause the production cluster running v0.
> 9.x crashed; this is big issue cause the cluster not available.

Ah, I see your problem. the sheep process which is added mistakenly
should exit. Could you add an issue to our tracker? I cannot allocate
time for the problem now, sorry.

Thanks,
Hitoshi

> 
> -----邮件原件-----
> 发件人: Hitoshi Mitake [mailto:mitake.hitoshi at gmail.com] 代表 Hitoshi Mitake
> 发送时间: 2015年1月20日 12:21
> 收件人: redtone
> 抄送: sheepdog-users at lists.wpkg.org
> 主题: Re: [sheepdog-users] sheepdog(v0.9.1) cluster will crash when a node
> running sheep v0.7.9 want to join the cluster.
> 
> At Mon, 19 Jan 2015 21:26:23 +0800,
> redtone wrote:
> > 
> > I run a sheepdog cluster with sheepdog v0.9.1 with zookeeper v3.4.6
> > 
> > When I run sheep command to add a node to the cluster, the cluster
> crashed.
> > 
> > Then I found the node's sheep version is v 0.7.9.
> > 
> > How to prohibit such issue ?
> 
> Co-existing v0.7.x and v0.9.x isn't supported. Could you update entire
> cluster to v0.9.1? In addition, store format is also incompatible. You
> need to backup your VDIs with qemu-img and restore later. Sorry for
> inconvenience.
> 
> Thanks,
> Hitoshi
> 
> > 
> > The following is the log message in sheep.log
> > 
> > Jan 19 20:58:24   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 20:58:56   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 20:59:28   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 20:59:28   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 20:59:28   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 21:00:00   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 21:00:00   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 21:00:32   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 21:00:32   INFO [main] zk_find_master(838) detect master leave,
> start
> > to compete master
> > Jan 19 21:00:32  EMERG [main] crash_handler(268) sheep exits unexpectedly
> > (Segmentation fault).
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(833) sheep.c:270: crash_handler
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib64/libpthread.so.0(+0xf70f) [0x7f9a1772a70f]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib64/libc.so.6(memcpy+0x3e6) [0x7f9a16d6ad46]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib/libzookeeper_mt.so.2(+0xc77c) [0x7f9a1728977c]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib/libzookeeper_mt.so.2(+0xdbbd) [0x7f9a1728abbd]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib/libzookeeper_mt.so.2(zoo_aset+0xdc) [0x7f9a17285cac]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib/libzookeeper_mt.so.2(zoo_set2+0x68) [0x7f9a17285e18]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(833) zookeeper.c:274:
> zk_set_data
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(833) zookeeper.c:1252:
> > zk_event_handler
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(833) event.c:210: do_event_loop
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(833) sheep.c:963: main
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847)
> > /lib64/libc.so.6(__libc_start_main+0xfc) [0x7f9a16cffd1c]
> > Jan 19 21:00:32  EMERG [main] sd_backtrace(847) sheep() [0x404238]
> > 
> > 
> > 
> > 
> > 
> > -- 
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> 
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