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From "Jordan Vaughan (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-13872) document speculative_retry on DDL page
Date Wed, 01 Nov 2017 03:49:02 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16233614#comment-16233614
] 

Jordan Vaughan edited comment on CASSANDRA-13872 at 11/1/17 3:48 AM:
---------------------------------------------------------------------

[~rustyrazorblade], thanks!  But is it really case-sensitive?  Here's what I see in {{schema/SpeculativeRetryParam.java}}:

{code:java}
    public static SpeculativeRetryParam fromString(String value)
    {
        // ...
        if (value.toUpperCase(Locale.ENGLISH).endsWith(Kind.PERCENTILE.toString()))
        {
            // Parse Double value...
        }
        // ...
    }
{code}

Doesn't this handle all case combinations?

I've also tested various combos in cqlsh(1) in my Docker instance:

{noformat}
root@4b8036840324:/# cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 3.11.1 | CQL spec 3.4.4 | Native protocol v4]
Use HELP for help.
cqlsh> create keyspace foo with replication = {'class': 'SimpleStrategy', 'replication_factor':
1};
cqlsh> use foo;
cqlsh:foo> create table bar (id bigint, name text, primary key (id));
cqlsh:foo> alter table bar with speculative_retry= '88percentile';
cqlsh:foo> alter table bar with speculative_retry= '88percentIle';
cqlsh:foo> alter table bar with speculative_retry= '88PeRcEnTiLe';
cqlsh:foo> create table baz (id bigint, name text, primary key (id)) with speculative_retry
= '50pErCeNtIlE';
cqlsh:foo>
{noformat}

There weren't any issues.

I also noticed that [the trunk code|https://github.com/apache/cassandra/commit/3fe31ffddb6a57e0ff89a813f724cd74133052db]
now accepts a 'P' suffix for "PERCENTILE" (as of commit {{3fe31ffddb6a57e0ff89a813f724cd74133052db}}).
 I didn't see that in my code, which was branched from 3.11.  Perhaps we should document this
suffix (and the case-insensitivity of "PERCENTILE", "ALWAYS", and "NONE")?


was (Author: jtvaughan):
[~rustyrazorblade], thanks!  But is it really case-sensitive?  Here's what I see in {{schema/SpeculativeRetryParam.java}}:

{code:java}
    public static SpeculativeRetryParam fromString(String value)
    {
        // ...
        if (value.toUpperCase(Locale.ENGLISH).endsWith(Kind.PERCENTILE.toString()))
        {
            // Parse Double value...
        }
        // ...
    }
{code}

Doesn't this handle all case combinations?

I've also tested various combos in cqlsh(1) in my Docker instance:

{noformat}
root@4b8036840324:/# cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 3.11.1 | CQL spec 3.4.4 | Native protocol v4]
Use HELP for help.
cqlsh> create keyspace foo with replication = {'class': 'SimpleStrategy', 'replication_factor':
1};
cqlsh> use foo;
cqlsh:foo> create table bar (id bigint, name text, primary key (id));
cqlsh:foo> alter table bar with speculative_retry= '88percentile';
cqlsh:foo> alter table bar with speculative_retry= '88percentIle';
cqlsh:foo> alter table bar with speculative_retry= '88PeRcEnTiLe';
cqlsh:foo> create table baz (id bigint, name text, primary key (id)) with speculative_retry
= '50pErCeNtIlE';
cqlsh:foo>
{noformat}

There weren't any issues.

I also noticed that the trunk code now accepts a 'P' suffix for "PERCENTILE" (as of commit
{{3fe31ffddb6a57e0ff89a813f724cd74133052db}}).  I didn't see that in my code, which was branched
from 3.11.  Perhaps we should document this suffix (and the case-insensitivity of "PERCENTILE",
"ALWAYS", and "NONE")?

> document speculative_retry on DDL page
> --------------------------------------
>
>                 Key: CASSANDRA-13872
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13872
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Documentation and Website
>            Reporter: Jon Haddad
>            Assignee: Jordan Vaughan
>            Priority: Major
>              Labels: docuentation, lhf
>             Fix For: 4.0
>
>
> There's no mention of speculative_retry or how it works on https://cassandra.apache.org/doc/latest/cql/ddl.html



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