Version 7.4.2
 —  Operations  —

Cluster Nucleus Session End Statistics

In addition to the end-of-session statistics printed by every Adabas nucleus, the statistics for a cluster nucleus also include external cache and lock statistics.

If you are running the selectable unit Adabas Online System (AOS), all of the statistics shown in the following sample output are displayed.

If you are running only the demo version of AOS delivered with Adabas, the statistics displayed are limited as follows:

Section Displays statistics only for...
External Cache Statistics totals, DS, and NI
External Lock Statistics buffer flush, hold ISN, new data RABN, and global update command sync locks

This document covers the following topics:


General Nucleus Information

The   A d a b a s  nucleus session

Started  2001-02-13 22:58  and  ended  2001-02-13
23:05

Duration      00000:06:59   hours
Wait-time     00000:02:26   hours
Cpu-time      00000:00:53   hours

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Input/Output Statistics

I/O Counts (Including Initialization)

READS      WRITES
------------------------------------
ASSO             4710        6913
DATA             1750        2853
WORK                3        7251
PLOG                0           0
CLOG                0           0
------------------------------------
Total            6463       17017

Log Reads and Buffer Efficiency

Log. reads         173,393
Buffer eff.       26.8

Distribution of ASSO/DATA I/Os by Volser Number (Excluding Initialization)

Vol-ser     High RABN         Count
------------------------------------
 WRKMO1 (ASSO       8082)     11599
 WRKMO1 (DATA       5990)      4603
------------------------------------
TOTAL                         16202

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Command Statistics

Count of Calls Executed and Threads Used

A d a b a s  executed      10,249 calls

                   in           8 threads

Distribution of Commands by Source

Source                  Number
------------------------------------
Remote   commands            0
Local    commands       10,102
Internal commands          144
Operator commands            3

Distribution of Commands by Thread

Thread                 Number
------------------------------------
   1                    2,657
   2                    1,803
   3                    1,401
   4                    1,300
   5                    1,193
   6                      977
   7                      917
   8                        1
------------------------------------
Total                  10,249

Distribution of Commands by File

File                    Number
------------------------------------
      0                   4,282
     30                   5,968
------------------------------------
Total                    10,250

Distribution of Commands by Type

Cmd-type                Number
------------------------------------
  A1/4                    1,968
  CL                         44
  ET                      4,040
  N1/2                    2,000
  OP                         43
  UC                          7
  REST                    2,148
------------------------------------
Total                    10,250

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User Statistics

There were        43  users    participating

Most calls (       303)    initiated by user   USADFMB2

Most I/O-s (       331)    initiated by user   USADFMB2

Most thr.-time (00:00:08) was  used  by user   USADFMB1

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Efficiency Statistics

46 Formats had to be translated

           0 Formats had to be overwritten

           0 Autorestarts were done

           0 Throw-backs due to  ISN  problem

           0 Throw-backs due to space problem

         143 Bufferflushes   were done

Buffer Flush Information

Flush phases                             212
Blocks flushed                        28,503
Flush I/Os                             8,756

Flush requests:
 Return immediately                   52,658
 Return after logical flush                0
 Return after entire  flush               15

Actual High-water Marks for Major Pools (Except the Bufferpool)

AREA          ADARUN PARM      HIGH-WATER-MARK
 ----------------------------------------------
 AB  -POOL    NAB=    2000        51712 (  0 %)
 CQ  -POOL    NC =   96000         3840 (  4 %)
 DUQ -POOL    LDE=    5000            0 (  0 %)
 FI  -POOL    LFP=   20000         6560 ( 32 %)
 HQ  -POOL    NH =   16856          588 (  3 %)
 SC  -POOL    LCP=   10000            0 (  0 %)
 TBI -POOL    LI =   10000            0 (  0 %)
 TBS -POOL    LQ =  100000            0 (  0 %)
 UQ  -POOL    NU =     500         8844 (  6 %)
 UQF -POOL    NU =     500         1512 (  3 %)
 WORK-POOL    LWP=  800000       114296 ( 14 %)
 XID -POOL    XID=                      (  0 %)

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External Cache Statistics (Cluster Nucleus Only)

Cast-out dir   :             188
 Synchronous   :             188
 Asynchronous  :               0

Unlock cast-out:             212
 Synchronous   :             132
 Asynchronous  :              80

Directory reads:               3
 Synchronous   :               0
 Asynchronous  :               3

Totals

Reads          :          15,006
 Synchronous   :          15,006
 Asynchronous  :               0

 In cache      :           6,245
 Not in cache  :           8,761
 Structure full:               0

Writes         :          66,726
 Synchronous   :          66,726
 Asynchronous  :               0

 Written       :          66,726
 Not written   :               0
 Structure full:               0

Validates      :         327,623
 Block invalid :               0

Cast-out reads :          28,503
 Synchronous   :          28,503
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

Address Converter (AC)

Reads          :               8
 Synchronous   :               8
 Asynchronous  :               0

 In cache      :               0
 Not in cache  :               8
 Structure full:               0

Writes         :           2,004
 Synchronous   :           2,004
 Asynchronous  :               0

 Written       :           2,004
 Not written   :               0
 Structure full:               0

Validates      :           5,983
 Block invalid :               0

Cast-out reads :              72
 Synchronous   :              72
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

Data Storage (DS)

Reads          :           2,775
 Synchronous   :           2,775
 Asynchronous  :               0

 In cache      :              26
 Not in cache  :           2,749
 Structure full:               0

Writes         :           4,972
 Synchronous   :           4,972
 Asynchronous  :               0

 Written       :           4,972
 Not written   :               0
 Structure full:               0

Validates      :           9,965
 Block invalid :               0

Cast-out reads :           2,921
 Synchronous   :           2,921
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

Data Storage Space Table (DSST)

Reads          :               2
 Synchronous   :               2
 Asynchronous  :               0

 In cache      :               0
 Not in cache  :               2
 Structure full:               0

Writes         :           2,004
 Synchronous   :           2,004
 Asynchronous  :               0

 Written       :           2,004
 Not written   :               0
 Structure full:               0

Validates      :           4,490
 Block invalid :               0

Cast-out reads :              69
 Synchronous   :              69
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

File Control Block (FCB)

Reads          :               5
 Synchronous   :               5
 Asynchronous  :               0

 In cache      :               0
 Not in cache  :               5
 Structure full:               0

Writes         :           4,970
 Synchronous   :           4,970
 Asynchronous  :               0

 Written       :           4,970
 Not written   :               0
 Structure full:               0

Validates      :          56,029
 Block invalid :               0

Cast-out reads :             119
 Synchronous   :             119
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

Normal Index (NI)

Reads          :          12,057
 Synchronous   :          12,057
 Asynchronous  :               0

 In cache      :           6,219
 Not in cache  :           5,838
 Structure full:               0

Writes         :          44,096
 Synchronous   :          44,096
 Asynchronous  :               0

 Written       :          44,096
 Not written   :               0
 Structure full:               0

Validates      :          25,685
 Block invalid :               0


Cast-out reads :          22,973
 Synchronous   :          22,973
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

Upper Index (UI)

Reads          :             159
 Synchronous   :             159
 Asynchronous  :               0

 In cache      :               0
 Not in cache  :             159
 Structure full:               0

Writes         :           8,680
 Synchronous   :           8,680
 Asynchronous  :               0

 Written       :           8,680
 Not written   :               0
 Structure full:               0

Validates      :         225,471
 Block invalid :               0

Cast-out reads :           2,349
 Synchronous   :           2,349
 Asynchronous  :               0

Deletes        :               0
 Timeouts      :               0

File Statistics for Files with More than 25% of the Total Cache Statistics

File    30:

Reads          :          14,998
Writes         :          64,710
Validates      :         323,105

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External Lock Statistics (Cluster Nucleus Only)

General Control Block (GCB) Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

Security Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

File Space Table (FST) Lock

Obtains - Conditional        :            1
            Granted          :            1
            Rejected         :            0
          Unconditional      :            1
          Synchronous        :            2
          Asynchronous       :            0

Releases - Issued            :            2
          Synchronous        :            2
          Asynchronous       :            0

File Lock Table Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            5
          Synchronous        :            5
          Asynchronous       :            0

Releases - Issued            :            5
          Synchronous        :            5
          Asynchronous       :            0

Online Save Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

Buffer Flush Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :          152
          Synchronous        :          152
          Asynchronous       :            0

Releases - Issued            :          152
          Synchronous        :          152
          Asynchronous       :            0

Global ET Sync Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

Recovery Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

Hold ISN Locks

Obtains - Conditional        :         3972
            Granted          :         3972
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :         3972
          Asynchronous       :            0

Releases - Issued            :         3972
          Synchronous        :         3972
          Asynchronous       :            0

Unique Descriptor Locks

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

ETID Locks

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

New Data RABN Locks

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :         1000
          Synchronous        :         1000
          Asynchronous       :            0

Releases - Issued            :         1000
          Synchronous        :         1000
          Asynchronous       :            0

Checkpoint Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            4
          Synchronous        :            4
          Asynchronous       :            0

Releases - Issued            :            4
          Synchronous        :            4
          Asynchronous       :            0

ET Data Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

Global Update Command Sync Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :          143
          Synchronous        :          143
          Asynchronous       :            0

Releases - Issued            :          143
          Synchronous        :          143
          Asynchronous       :            0

Parameter Lock

Obtains - Conditional        :            0
            Granted          :            0
            Rejected         :            0
          Unconditional      :            0
          Synchronous        :            0
          Asynchronous       :            0

Releases - Issued            :            0
          Synchronous        :            0
          Asynchronous       :            0

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Dataset Activity Statistics

................................................
ADAI03 DDWORKR1         3 READS      7251 WRITES
ADAI03 DDDATAR1      1750 READS      2853 WRITES
ADAI03 DDASSOR1      4710 READS      6913 WRITES

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