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Posted to issues@ignite.apache.org by "Taras Ledkov (JIRA)" <ji...@apache.org> on 2017/01/27 13:02:24 UTC

[jira] [Comment Edited] (IGNITE-2356) IGFS client should be able to failover in case of server crash.

    [ https://issues.apache.org/jira/browse/IGNITE-2356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15842510#comment-15842510 ] 

Taras Ledkov edited comment on IGNITE-2356 at 1/27/17 1:02 PM:
---------------------------------------------------------------

1. We have to use remote node to check both {{InProc, Client}} modes for {{HadoopIgfsWrapper}}. e.g. {{InProc}} mode is default and client node is started never if the ignite node available at the same process.

2. Sure. The concurrency with {{synchronized}} become simpler then with lock-free (*Fixed*).

[Tests|http://195.239.208.174/project.html?projectId=IgniteTests&branch_IgniteTests=pull%2F1251%2Fhead] are re-run


was (Author: tledkov-gridgain):
1. We have to use remote node to check both {{InProc, Client}} modes for {{HadoopIgfsWrapper}}. e.g. {{InProc}} mode is default and client node is started never if the ignite node available at the same process.

2. Sure. The concurrency with {{synchronized}} become simpler then with lock-free (*Fixed*).

> IGFS client should be able to failover in case of server crash.
> ---------------------------------------------------------------
>
>                 Key: IGNITE-2356
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2356
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: IGFS
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Assignee: Taras Ledkov
>             Fix For: 2.0
>
>
> IGFS client (IgniteHadoopFileSystem) communicates IGFS over endpoint - either TCP or shmem.
> Only single endpoint can be specified. As such, should the server went down, IgntieHadoopFileSystem (either new or existing) is no longer operational. 
> We need to let user specify several endpoints and failover/balance between them.
> Look at Hadoop HA first to get an ideas on how to configure multiple addresses.



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