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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16417) In-Memory MemStore Policy for Flattening and Compactions
Date Tue, 01 Nov 2016 19:16:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15626398#comment-15626398
] 

stack commented on HBASE-16417:
-------------------------------

Smile. On the answer to the first, yeah, per client we'll do 1M rows.

On second question, answer is the second option.... value is per column.

See below:

I ran ./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation sequentialWrite 2


... and when I did a count I got:

....
Current count: 2094000, row: 00000000000000000002093999
Current count: 2095000, row: 00000000000000000002094999
Current count: 2096000, row: 00000000000000000002095999
Current count: 2097000, row: 00000000000000000002096999
2097146 row(s)
Took 61.3450 seconds


And after dropping above table, I did this:

$ ./bin/hbase pe  --rows=10 --columns=2 --valueSize=3 sequentialWrite 3

... then scanning in shell:

{code}
....
 00000000000000000000000025                                                          column=info:0,
timestamp=1478027694055, value=YYY
 00000000000000000000000025                                                          column=info:1,
timestamp=1478027694055, value=AAA
 00000000000000000000000026                                                          column=info:0,
timestamp=1478027695245, value=XXX
 00000000000000000000000026                                                          column=info:1,
timestamp=1478027695245, value=CCC
 00000000000000000000000027                                                          column=info:0,
timestamp=1478027695658, value=XXX
 00000000000000000000000027                                                          column=info:1,
timestamp=1478027695658, value=HHH
 00000000000000000000000028                                                          column=info:0,
timestamp=1478027694647, value=KKK
 00000000000000000000000028                                                          column=info:1,
timestamp=1478027694647, value=PPP
 00000000000000000000000029                                                          column=info:0,
timestamp=1478027694949, value=BBB
 00000000000000000000000029                                                          column=info:1,
timestamp=1478027694949, value=UUU
30 row(s)
Took 15.4920 seconds
{code}

> In-Memory MemStore Policy for Flattening and Compactions
> --------------------------------------------------------
>
>                 Key: HBASE-16417
>                 URL: https://issues.apache.org/jira/browse/HBASE-16417
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anastasia Braginsky
>            Assignee: Eshcar Hillel
>             Fix For: 2.0.0
>
>




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