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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEPHRA-228) Introduce client ID that can be used to track requests per client
Date Mon, 22 May 2017 20:15:04 GMT

    [ https://issues.apache.org/jira/browse/TEPHRA-228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16020112#comment-16020112
] 

ASF GitHub Bot commented on TEPHRA-228:
---------------------------------------

Github user poornachandra commented on a diff in the pull request:

    https://github.com/apache/incubator-tephra/pull/42#discussion_r117827109
  
    --- Diff: tephra-core/src/main/java/org/apache/tephra/distributed/TransactionServiceClient.java
---
    @@ -50,6 +51,7 @@
      * A tx service client
      */
     public class TransactionServiceClient implements TransactionSystemClient {
    +  public static final String CLIENT_ID = "clientId";
    --- End diff --
    
    It would be better to move this definition to `TxConstants` since this is to be used by
external programs. Also call it as `tephra.client.id` to disambiguate.


> Introduce client ID that can be used to track requests per client
> -----------------------------------------------------------------
>
>                 Key: TEPHRA-228
>                 URL: https://issues.apache.org/jira/browse/TEPHRA-228
>             Project: Tephra
>          Issue Type: Improvement
>          Components: api, core
>            Reporter: Poorna Chandra
>            Assignee: Gokul Gunasekaran
>             Fix For: 0.12.0-incubating
>
>
> Today transaction manager does not have details of what transaction belongs to which
client. For instance when a there are a lot of invalid transactions generated by a client,
it is not easy to say which client generated the invalid transactions. Transaction manager
just logs a message saying the transaction ID was invalidated. This makes debugging very difficult
since there is no easy way to map the transaction ID to a program.
> Transaction APIs should allow clients to pass in client IDs for every start transaction
call. Transaction manager can store this client ID as part of the transaction metadata. And
when transaction manager logs messages with transaction ID, it can include the client ID in
the message.



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