HI HU and Yu
Aggree with dfs.replication is a client side configuration, not server
side. It make the point in my last mail sense.
And the cmd:hdfs dfs -setrep -R -w 2 / solve the problem that I can
not change the existed file's replication value.
2013/7/2 Azuryy Yu <azury...@gmail.com>
> It's not HDFS issue.
>
> dfs.replication is a client side configuration, not server side. so you
> need to set it to '2' on your client side( your application running on).
> THEN execute command such as : hdfs dfs -put or call HDFS API in java
> application.
>
>
>
>
> On Tue, Jul 2, 2013 at 12:25 PM, Francis.Hu
> <francis...@reachjunction.com>wrote:
>
>> Thanks all of you, I just get the problem fixed through the command: ***
>> *
>>
>> hdfs dfs -setrep -R -w 2 /****
>>
>> ** **
>>
>> Is that an issue of HDFS ? Why do i need to execute manually a command to
>> tell the hadoop the replication factor even it is set in hdfs-site.xml ?*
>> ***
>>
>> ** **
>>
>> Thanks,****
>>
>> Francis.Hu****
>>
>> ** **
>>
>> *发件人:* Francis.Hu [mailto:francis...@reachjunction.com]
>> *发送时间:* Tuesday, July 02, 2013 11:30
>> *收件人:* user@hadoop.apache.org
>> *主题:* 答复: 答复: a question about dfs.replication****
>>
>> ** **
>>
>> Yes , it returns 2 correctly after "hdfs getconf -confkey
>> dfs.replication"****
>>
>> ** **
>>
>> ****
>>
>> ** **
>>
>> but in web page ,it is 3 as below:****
>>
>> ****
>>
>> ** **
>>
>> *发件人:* yypvsxf19870706 [mailto:yypvsxf19870...@gmail.com]
>> *发送时间:* Monday, July 01, 2013 23:24
>> *收件人:* user@hadoop.apache.org
>> *主题:* Re: 答复: a question about dfs.replication****
>>
>> ** **
>>
>> Hi ****
>>
>> ** **
>>
>> Could you please get the property value by using : hdfs getconf
>> -confkey dfs.replication.****
>>
>>
>> ������������ iPhone****
>>
>>
>> ��?2013-7-1锛?5:51锛�Francis.Hu <francis...@reachjunction.com> ������锛?br>****
>>
>> ****
>>
>> Actually, My java client is running with the same configuration as the
>> hadoop's . The dfs.replication is already set as 2 in my hadoop's
>> configuration.****
>>
>> So i think the dfs.replication is already overrided by my configuration
>> in hdfs-site.xml. but seems it doesn't work even i overrided the parameter
>> evidently.****
>>
>> ****
>>
>> ****
>>
>> *���浠朵�**?span lang="EN-US">:* ��屑械谢����薪芯胁 ��芯��懈��
>> [mailto:emelya...@post.km.ru<emelya...@post.km.ru>]
>>
>> *����**�**���堕�**?span lang="EN-US">:* Monday, July 01, 2013 15:18
>> *��朵欢浜?span lang="EN-US">:* user@hadoop.apache.org
>> *涓婚**��:* Re: a question about dfs.replication****
>>
>> ****
>>
>> On 01.07.2013 10:19, Francis.Hu wrote:****
>>
>> Hi, All****
>>
>> ****
>>
>> I am installing a cluster with Hadoop 2.0.5-alpha. I have one namenode
>> and two datanodes. The dfs.replication is set as 2 in hdfs-site.xml.
>> After all configuration work is done, I started all nodes. Then I saved a
>> file into HDFS through java client. nOW I can access hdfs web page:
>> x.x.x.x:50070,and also see the file is already listed in the hdfs list.**
>> **
>>
>> My question is: *The replication column in HDFS web page is showing as
>> 3, not 2. Does anyone know What the problem is?*****
>>
>> * *****
>>
>> ---Actual setting of hdfs-site.xml****
>>
>> <property>****
>>
>> <name>dfs.replication</name>****
>>
>> <value>2</value>****
>>
>> </property>****
>>
>> ****
>>
>> After that, I typed dfsamdin command to check the file:****
>>
>> hdfs fsck /test3/****
>>
>> The result of above command:****
>>
>> /test3/hello005.txt: Under replicated
>> BP-609310498-192.168.219.129-1372323727200:blk_-1069303317294683372_1006.
>> Target Replicas is 3 but found 2 replica(s).****
>>
>> Status: HEALTHY****
>>
>> Total size: 35 B****
>>
>> Total dirs: 1****
>>
>> Total files: 1****
>>
>> Total blocks (validated): 1 (avg. block size 35 B)****
>>
>> Minimally replicated blocks: 1 (100.0 %)****
>>
>> Over-replicated blocks: 0 (0.0 %)****
>>
>> Under-replicated blocks: 1 (100.0 %)****
>>
>> Mis-replicated blocks: 0 (0.0 %)****
>>
>> Default replication factor: 2****
>>
>> Average block replication: 2.0****
>>
>> Corrupt blocks: 0****
>>
>> Missing replicas: 1 (33.333332 %)****
>>
>> Number of data-nodes: 3****
>>
>> Number of racks: 1****
>>
>> FSCK ended at Sat Jun 29 16:51:37 CST 2013 in 6 milliseconds****
>>
>> ****
>>
>> ****
>>
>> Thanks,****
>>
>> Francis Hu****
>>
>> ****
>>
>> If I'm not mistaking "dfs.replication" parameter in config sets only
>> default replication factor, which can be overrided when putting file to
>> hdfs.****
>>
>>
>
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