IJ29133: "OPEN" OPERATION IS NO LONGER REPORTED IN THE NAMENODE JMX WITH

APAR status

• Closed as program error.

Error description

• "Open" operation is no longer reported in the NameNode
  jmx with HDFS Transparency 3.1.0.6
  
  without change (log is getBlockLocations)
  [root@yavin-vm1 ak_sm_create]# date; hdfs jmxget -server
  localhost -port 8004 -service NameNode 2>/dev/null | grep
  op=open
  Wed Nov  4 11:04:01 PST 2020
  <no output>
  
  hdfs jmxget -server localhost -port 8004 -service
  NameNode 2>/dev/null | grep op=
  Wed Nov  4 11:03:41 PST 2020
  ...
  op=delete.user=hbase.count.1=5
  op=getBlockLocations.TotalCount.2=17
  op=getBlockLocations.user=hbase.count.2=16
  op=getBlockLocations.user=root.count.2=1
  op=getfileinfo.TotalCount.2=73
  ....
  
  With the audit log changed to open matching
  ranger.enabled=native
  The following is run after the cat of the file.
  [root@yavin-vm1 ~]# date; hdfs jmxget -server localhost
  -port 8004 -service NameNode 2>/dev/null | grep op=open
  Wed Nov  4 11:17:57 PST 2020
  op=open.TotalCount=14
  op=open.user=hbase.count=13
  op=open.user=root.count=1
  op=open.TotalCount.1=20
  op=open.user=hbase.count.1=19
  op=open.user=root.count.1=1
  op=open.TotalCount.2=20
  op=open.user=hbase.count.2=19
  op=open.user=root.count.2=1
  

Local fix

• Will be fixed in HDFS Transparency 3.1.0.7
  

Problem summary

• The Spectrum Scale HDFS Transparency connector
  version 3.1.0-6 contains 2 NullPointerExceptions in
  the HDFS NameNode service. The application accessing
  the data is not impacted, but these exceptions are seen
  in the NameNode log file
  

Problem conclusion

• Benefits of the solution:
  Fixed the code so that the operation is
  reported as Open to be consistent with
  other configuration settings.
  * Work around: None
  * Problem trigger:
  User running HDFS Transparency workload.
  * Symptom: Error output/message.
  * Platforms affected: All
  * Functional Area affected: HDFS Connector.
  * Customer Impact: High
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IJ30336

Fix information

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels