Testing HDFS Over WebHDFS By Using CURL

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

A quick update on hdfs put/get/etc… Simplest solution to upload/download/delete/etc… Use webhdfs. samples are below. ————— Simple Example in one step. Note: In this example, replace node name with any of the 6 nodes [n01-n06] curl -L -i -X PUT -T source_file_name.pdf “http://n03.domain.com:50075/webhdfs/v1/user/usera/dest_file_name.pdf?user.name=usera&op=CREATE&user.name=usera&namenoderpcaddress=bda-cluster1-ns&overwrite=false” # Example You have a source file: solaris_openstack.pdf user.name: usera file dest: […]

Read More

How to recover from an Oracle DB archivelog full error

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

How to recover from an Oracle DB if the disk/file system for archive logs gets full Note: if DB is hung at shutdown i.e. shu immediate, then force a shutdown, like below

Get size used for if needed

Remove Archive logs with rm in ASMCMD

Open the DB for usage

Change […]

Read More

ASM migrate from one lun to anther lun

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

To add new disk array / lun

To verify

To Check where the rebalnce is up to

To remove the old one

Read More

Configuring BDA

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

How to add scoop2 Doc ID 1922701.1 If it fails use Doc ID 1966882.1 Note: Clear the directory before starting as old junk will make it fail. P.S. Make sure you are not removing other jar files. rm -r /var/lib/sqoop2/* Hive issues, make sure to set full rights to the hive tmp dir

How […]

Read More

Enterprise Manager Deleting Targets Manually With CLI

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

Enterprise Manager deleting a target manually First stop the agent.

Now Uninstall the agent

Read More

Oracle Enterprise Manager 13c with Oracle DB Configuration Modifications

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

How to increase Oracle Database log size

Change parallel

Set parallel min

Change SHARED_POOL_SIZE

Change session cached cursors

EM Default ports Use the following URL to access: Enterprise Manager Cloud Control URL: https://em1.domain.com:7799/em Admin Server URL: https://em1.domain.com:7101/console BI Publisher URL: https://em1.domain.com:9801/xmlpserver The following details need to be provided while installing […]

Read More

Enterprise Manager Cloud Control 12c startup issues

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

At startup first log directory /u01/app/oracle/gc_inst-r5/user_projects/domains/GCDomain/servers/EMGC_OMS1/logs/EMGC_OMS1.log After that log directory /u01/app/oracle/gc_inst/em/EMGC_OMS1/sysman/log/ Note: By setting memory to low, like below OMS will hang and never complete startup

How to increase the memory on EM 12c https://community.oracle.com/community/support/support-blogs/enterprise-manager-support-blog/blog/2015/01/20/how-to-tune-the-jvm-heap-memory-arguments-for-12c-oms-and-agent

Read More

Testing DNS performance – perl script

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

Use the perl script below to check your DNS performance. Make sure to replace the search string and your DNS provider IP address.

Read More