hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Uma Maheswara Rao G (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2494) [webhdfs] When Getting the file using OP=OPEN with DN http address, ESTABLISHED sockets are growing.
Date Sun, 23 Oct 2011 16:30:32 GMT
[webhdfs] When Getting the file using OP=OPEN with DN http address, ESTABLISHED sockets are
growing.
----------------------------------------------------------------------------------------------------

                 Key: HDFS-2494
                 URL: https://issues.apache.org/jira/browse/HDFS-2494
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 0.24.0
            Reporter: Uma Maheswara Rao G
            Assignee: Uma Maheswara Rao G


As part of the reliable test,
Scenario:
Initially check the socket count. ---there are aroud 42 sockets are there.
open the file with DataNode http address using op=OPEN request parameter about 500 times in
loop.
Wait for some time and check the socket count. --- There are thousands of ESTABLISHED sockets
are growing. ~2052

Here is the netstat result:

C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042
C:\Users\uma>netstat | grep 127.0.0.1 | grep ESTABLISHED |wc -l
2042

This count is coming down.




--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message