What do your nodes have in their logs during startup? Are you sure you have them configured correctly? Are the file ephemeral? Could they have disappeared on their own?

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On Aug 11, 2010, at 12:10 AM, Dr Hao He <h...@softtouchit.com> wrote:

hi, Ted,

Thanks for the reply.  Here is what I did:

[zk: localhost:2181(CONNECTED) 0] ls /xpe/queues/ 3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs/msg0000002948
zk: localhost:2181(CONNECTED) 1] ls /xpe/queues/ 3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs [msg0000002807, msg0000002700, msg0000002701, msg0000002804, msg0000002704, msg0000002706, msg0000002601, msg0000001849, msg0000001847, msg0000002508, msg0000002609, msg0000001841, msg0000002607, msg0000002606, msg0000002604, msg0000002809, msg0000002817, msg0000001633, msg0000002812, msg0000002814, msg0000002711, msg0000002815, msg0000002713, msg0000002716, msg0000001772, msg0000002811, msg0000001635, msg0000001774, msg0000002515, msg0000002610, msg0000001838, msg0000002517, msg0000002612, msg0000002519, msg0000001973, msg0000001835, msg0000001974, msg0000002619, msg0000001831, msg0000002510, msg0000002512, msg0000002615, msg0000002614, msg0000002617, msg0000002104, msg0000002106, msg0000001769, msg0000001768, msg0000002828, msg0000002822, msg0000001760, msg0000002820, msg0000001963, msg0000001961, msg0000002110, msg0000002118, msg0000002900, msg0000002836, msg0000001757, msg0000002907, msg0000001753, msg0000001752, msg0000001755, msg0000001952, msg0000001958, msg0000001852, msg0000001956, msg0000001854, msg0000002749, msg0000001608, msg0000001609, msg0000002747, msg0000002882, msg0000001743, msg0000002888, msg0000001605, msg0000002885, msg0000001487, msg0000001746, msg0000002330, msg0000001749, msg0000001488, msg0000001489, msg0000001881, msg0000001491, msg0000002890, msg0000001889, msg0000002758, msg0000002241, msg0000002892, msg0000002852, msg0000002759, msg0000002898, msg0000002850, msg0000001733, msg0000002751, msg0000001739, msg0000002753, msg0000002756, msg0000002332, msg0000001872, msg0000002233, msg0000001721, msg0000001627, msg0000001720, msg0000001625, msg0000001628, msg0000001629, msg0000001729, msg0000002350, msg0000001727, msg0000002352, msg0000001622, msg0000001726, msg0000001623, msg0000001723, msg0000001724, msg0000001621, msg0000002736, msg0000002738, msg0000002363, msg0000001717, msg0000002878, msg0000002362, msg0000002361, msg0000001611, msg0000001894, msg0000002357, msg0000002218, msg0000002358, msg0000002355, msg0000001895, msg0000002356, msg0000001898, msg0000002354, msg0000001996, msg0000001990, msg0000002093, msg0000002880, msg0000002576, msg0000002579, msg0000002267, msg0000002266, msg0000002366, msg0000001901, msg0000002365, msg0000001903, msg0000001799, msg0000001906, msg0000002368, msg0000001597, msg0000002679, msg0000002166, msg0000001595, msg0000002481, msg0000002482, msg0000002373, msg0000002374, msg0000002371, msg0000001599, msg0000002773, msg0000002274, msg0000002275, msg0000002270, msg0000002583, msg0000002271, msg0000002580, msg0000002067, msg0000002277, msg0000002278, msg0000002376, msg0000002180, msg0000002467, msg0000002378, msg0000002182, msg0000002377, msg0000002184, msg0000002379, msg0000002187, msg0000002186, msg0000002665, msg0000002666, msg0000002381, msg0000002382, msg0000002661, msg0000002662, msg0000002663, msg0000002385, msg0000002284, msg0000002766, msg0000002282, msg0000002190, msg0000002599, msg0000002054, msg0000002596, msg0000002453, msg0000002459, msg0000002457, msg0000002456, msg0000002191, msg0000002652, msg0000002395, msg0000002650, msg0000002656, msg0000002655, msg0000002189, msg0000002047, msg0000002658, msg0000002659, msg0000002796, msg0000002250, msg0000002255, msg0000002589, msg0000002257, msg0000002061, msg0000002064, msg0000002585, msg0000002258, msg0000002587, msg0000002444, msg0000002446, msg0000002447, msg0000002450, msg0000002646, msg0000001501, msg0000002591, msg0000002592, msg0000001503, msg0000001506, msg0000002260, msg0000002594, msg0000002262, msg0000002263, msg0000002264, msg0000002590, msg0000002132, msg0000002130, msg0000002530, msg0000002931, msg0000001559, msg0000001808, msg0000002024, msg0000001553, msg0000002939, msg0000002937, msg0000001556, msg0000002935, msg0000002933, msg0000002140, msg0000001937, msg0000002143, msg0000002520, msg0000002522, msg0000002429, msg0000002524, msg0000002920, msg0000002035, msg0000001561, msg0000002134, msg0000002138, msg0000002925, msg0000002151, msg0000002287, msg0000002555, msg0000002010, msg0000002002, msg0000002290, msg0000001537, msg0000002005, msg0000002147, msg0000002145, msg0000002698, msg0000001592, msg0000001810, msg0000002690, msg0000002691, msg0000001911, msg0000001910, msg0000002693, msg0000001812, msg0000001817, msg0000001547, msg0000002012, msg0000002015, msg0000002941, msg0000001688, msg0000002018, msg0000002684, msg0000002944, msg0000001540, msg0000002686, msg0000001541, msg0000002946, msg0000002688, msg0000001584, msg0000002948]

[zk: localhost:2181(CONNECTED) 7] delete /xpe/queues/ 3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs/msg0000002948 Node does not exist: /xpe/queues/ 3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs/msg0000002948

When I performed the same operations on another node, none of those nodes existed.

Dr Hao He

XPE - the truly SOA platform


On 11/08/2010, at 4:38 PM, Ted Dunning wrote:

Can you provide some more information? The output of some of the four
letter commands and a transcript of what you are doing would be very

Also, there is no way for znodes to exist on one node of a properly
operating ZK cluster and not on either of the other two. Something has to be wrong and I would vote for operator error (not to cast aspersions, it is
just that humans like you and *me* make more errors than ZK does).

On Tue, Aug 10, 2010 at 11:32 PM, Dr Hao He <h...@softtouchit.com> wrote:

hi, All,

I have a 3-host cluster running ZooKeeper 3.2.2. On one of the hosts, there are a number of nodes that I can "get" and "ls" using zkCli.sh . However, when I tried to "delete" any of them, I got "Node does not exist"
error.    Those nodes do not exist on the other two hosts.

Any idea how we should handle this type of errors and what might have
caused this problem?

Dr Hao He

XPE - the truly SOA platform


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