The point of the backup is to backup persistent data since non-persistent
operational data is reproduced on restart.
I generated non-persistent operational data using dsbenchmark. After restart
karaf, all operational data is gone. Do you suggest that some non-persistent
data will be reproduced by persistent data?
PS: In ODL_Clustering_ODL_Summit_2016.pptx, there is a plan for carbon:
Stared on Application Clustering/HA model: API to move Shard leader towards a
Producer
Is It mean keeping ownership leader and the datastore leader the same? Is there
any document or progress about this?
Thanks
在 2017-02-14 11:22:08，"Tom Pantelis" <tompante...@gmail.com> 写道：
On Mon, Feb 13, 2017 at 10:15 PM, bjb <bjb2...@163.com> wrote:
Hi All:
I have two questions on understanding cluster-admin implemention:
1. cluster-admin:remove_shard_replica
This api is to remove the shard replica on particular member. There is a
variable in AbstractLeader.java named 'minReplicationCount' which does not
update when shard replica is removed.
Eg: 5 cluster members ecah have shard 'default', node 1 is leader. After
invoking the api to remove shard 'default' on member 4, 5, the
minReplicationCount is still 3. Why not recalculate the remain 3 member whose
minReplicationCount is actually 2?
That is an oversight.
2. cluster-admin:backup-datastore
The implemention of GetSnapshot is to capture the snapshot for persistent
shard, and to initiate a snapshot containing just the persistable(eg election
term info) for non-persistent shard.
In some situation, I want to export the config-datastore(persistent) and the
operational-datastore(non-persistent) on production environment and to restore
them on testing environment to reproduce the running status. But the
non-persistent is not available using backup api. How can I export both
non-persistent and persistent datastore?
The point of the backup is to backup persistent data since non-persistent
operational data is reproduced on restart.
Hope to get your help.
Thanks
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