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From "Billie Rinaldi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-898) look into replacing cloudtrace
Date Wed, 22 Oct 2014 22:24:34 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Billie Rinaldi updated ACCUMULO-898:
------------------------------------
    Attachment: ACCUMULO-898-3-deleted.patch
                ACCUMULO-898-3-package-import-only.patch
                ACCUMULO-898-3-generated.patch
                ACCUMULO-898-3-base.patch
                ACCUMULO-898-3.patch

Here's a new patch, ACCUMULO-898-3.patch.  I've also attached the same thing in 4 different
pieces, in hopes of making it easier to review: -base (the interesting diffs), -generated
(thrift generated code), -package-import-only (java files where only imports or package declarations
were changed), and -deleted (removed files).

You could apply the pieces all at once with {{git apply ACCUMULO\-898\-3\-*}} (note the dash
after the 3), and that is equivalent to applying ACCUMULO-898-3.patch.  The 4 sub-patches
were created using git diff -C, which attempts to detect copied and moved files, while the
full patch was created with git format-patch, so it is significantly larger.

One outstanding issue (among others, I'm sure) is that TraceRepoDeserializationTest fails.
 I'd like to discuss how to fix this.

Also, the properties in the hadoop core-site.xml now look like the following.  Accumulo tracing
is configured separately in accumulo-site.xml, and it has appropriate defaults.
{noformat}
<property>
  <name>hadoop.htrace.spanreceiver.classes</name>
  <value>org.apache.accumulo.tracer.ZooTraceClient</value>
</property>
<property>
  <name>hadoop.tracer.zookeeper.host</name>
  <value>localhost:2181</value>
</property>
{noformat}

> look into replacing cloudtrace
> ------------------------------
>
>                 Key: ACCUMULO-898
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-898
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Eric Newton
>            Assignee: Billie Rinaldi
>             Fix For: 1.7.0
>
>         Attachments: ACCUMULO-898-1.patch, ACCUMULO-898-3-base.patch, ACCUMULO-898-3-deleted.patch,
ACCUMULO-898-3-generated.patch, ACCUMULO-898-3-package-import-only.patch, ACCUMULO-898-3.patch,
ACCUMULO-898-ecn.patch, Cloudtrace Replacement Design Doc.pdf, trace-tracer.png, trace-zipkin.png
>
>
> HBase has created their own distributed tracing library, and today I bumped into zipkin.
 zipkin has a reasonable visualization, and seems to work with thrift.  We should look into
replacing our tracing with one of these.



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