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From "Joost Reuzel (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-7510) Notify clients that bootstrap is finished over binary protocol
Date Tue, 08 Jul 2014 06:49:35 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joost Reuzel updated CASSANDRA-7510:
------------------------------------

    Description: 
Currently, Cassandra will notify clients when a new node is added to a cluster. However, that
node is typically not usable yet. It first needs to gossip its key range and finish loading
all its assigned data before it allows clients to connect. Depending on the amount of data
this may take quite a while. The clients in the mean time have no clue about the bootstrap
status of that node. The only thing they can do is periodically check if it will accept a
connection. 

My proposal would be to send an additional UP event when the bootstrap is done, this allows
clients to mark the node initially as down/unavailable and simply wait for the UP event to
arrive.

Kind regards,
Joost

  was:
Currently, Cassandra will notify clients when a new node is added to a cluster. However, that
node is typically not usable yet. It first needs to gossip its key range and finish loading
all its assigned data before it allows clients to connect. Depending on the amount of data
this may take quite a while. The clients in the mean time have no clue about the bootstrap
status of that node. The only thing they can do is periodically check if it will accept a
connection. 

My proposal would be to send an additional UP event when the bootstrap is done, this allows
clients to mark the node as down/unavailable and simply wait for the UP event to arrive.

Kind regards,
Joost


> Notify clients that bootstrap is finished over binary protocol
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-7510
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7510
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Joost Reuzel
>
> Currently, Cassandra will notify clients when a new node is added to a cluster. However,
that node is typically not usable yet. It first needs to gossip its key range and finish loading
all its assigned data before it allows clients to connect. Depending on the amount of data
this may take quite a while. The clients in the mean time have no clue about the bootstrap
status of that node. The only thing they can do is periodically check if it will accept a
connection. 
> My proposal would be to send an additional UP event when the bootstrap is done, this
allows clients to mark the node initially as down/unavailable and simply wait for the UP event
to arrive.
> Kind regards,
> Joost



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