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From "Guanghao Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17288) Add warn log for huge Cell and huge row
Date Thu, 15 Dec 2016 07:06:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15750616#comment-15750616
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Guanghao Zhang commented on HBASE-17288:
----------------------------------------

bq. HConstants being Public, not to add these kind of constants here.
You mean the constant name or only add it to StoreScanner?
bq. Why KV ref where as we call it Cells these days 
They are old code since we use 0.94. I will change this. Thanks.
bq. We have MOB feature now where each of the Cell might be >1M in size.
If i am not wrong, the MOB feature only use MobStoreScanner. This log is for StoreScanner.

> Add warn log for huge Cell and huge row
> ---------------------------------------
>
>                 Key: HBASE-17288
>                 URL: https://issues.apache.org/jira/browse/HBASE-17288
>             Project: HBase
>          Issue Type: Improvement
>          Components: scan
>            Reporter: Guanghao Zhang
>            Assignee: Guanghao Zhang
>            Priority: Minor
>         Attachments: HBASE-17288-v1.patch, HBASE-17288.patch
>
>
> Some log examples from our production cluster.
> {code}
> 2016-12-10,17:08:11,478 WARN org.apache.hadoop.hbase.regionserver.StoreScanner: adding
a HUGE KV into result list, kv size:1253360, kv:105671140000001-1-c/R:r1/1481360887152/Put/vlen=1253245/ts=923099,
from table XXXXX
> 2016-12-10,17:08:16,724 WARN org.apache.hadoop.hbase.regionserver.StoreScanner: adding
a HUGE KV into result list, kv size:1048680, kv:0220459/I:i_0/1481360889551/Put/vlen=1048576/ts=13642,
from table XXXXXX
> {code}



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