sap hana sps09- administration monitoring

1 © 2014 SAP AG or an SAP affiliate company. All rights reserved.

SAP HANA SPS 09 - What’s New? Administration & Monitoring

SAP HANA Product Management November, 2014

(Delta from SPS08 to SPS09)

2 Public © 2014 SAP SE or an SAP affiliate company. All rights reserved.

Content

This presentation provides an overview of the main changes regarding administration, monitoring and

supportability of the SAP HANA database between the SPS 08 version and the SPS 09 version.

It covers changes to the SAP HANA cockpit, the SAP HANA studio administration perspective and

changes to the SAP HANA database.

Functionality of other SAP HANA studio perspectives (like the SAP HANA Modeler) is not covered in

this presentation.


Agenda

Improved Monitoring and Supportability

New SAP HANA cockpit

New SAP DB control center

SAP HANA multitenant database containers

SAP HANA studio enhancements

Statistics service enhancements

Improved resource monitoring

Additional Features

Shortened restart time

Changed web dispatcher configuration

New/enhanced monitoring views

Improved Monitoring and

Supportability



SAP HANA Cockpit and SAP DB Control Center

Overview

SAP HANA cockpit

– Web-based tool for administration and monitoring of a single SAP HANA database

SAP DB Control Center

– Web-based tool for administration and monitoring of your landscape of SAP databases

– Theme for SPS09: Support thousands of SAP Databases in Data Center or Cloud



SAP HANA Cockpit

New web-based monitoring tool First version of SAP HANA cockpit available in addition

to the SAP HANA studio

Is an SAP Fiori Launchpad site that provides single

point-of-access to a range of web-based applications for

the administration of SAP HANA

Is installed with SAP HANA as automated content

Displays content as tiles arranged in groups

The default homepage of tiles is customizable by

modifying existing groups and creating new groups; tiles

can be removed and added from any of the available tile

catalogs

Implements a role-based concept so that users only have

access to those tile catalogs for which they are

authorized

Provides access to SAP HANA Administration Guide

http://<host>:<port>/sap/hana/admin/cockpit

Can also be opened from SAP HANA studio context

menu



SAP HANA Cockpit – Database Status

Database Status Tile and Application

The overall database status is

displayed on the Database Status

tile.

Open the Database Status app by

clicking the tile.

The status of all the services in the system is displayed.

For each service, detailed information about its memory

and CPU consumption is available.

If high priority alerts exist, this is shown on the tile as well

as in the app. Direct access to the Alerts app is provided

for further analysis of such alerts.

The view is customizable, further columns can be added.



SAP HANA Cockpit – Allocation Statistics

Allocation Statistics Application

You can visualize and explore the memory allocation

history of the components of each service in the SAP

HANA database using the Memory Allocation Statistics

app

Open the Memory Allocation Statistics app from the

Database Status app by clicking the value in Used

Memory column of the service whose memory allocation

history you want to see.

Tip: If the Used Memory column is not visible, click the

configuration button in the footer toolbar and select it.



SAP HANA Cockpit – Alerts

Alert Tile and Application

A summary of all latest alerts is available

on the homepage of SAP HANA cockpit.

To get more information about these alerts

and to analyze the historical occurrence

of alerts, you can drill down into the Alerts app.

All latest alerts are displayed in list format on the left. To

see more detailed information about a specific alert on

the right, simply select it.

The details include a display of past occurrences of this

alert.

To see all alerts, click All Alerts in the footer toolbar.

Options for filtering, searching, and sorting are available

to customize the list of alerts.

To get to the check configuration, click the Configuration

icon in the footer toolbar.



SAP HANA Cockpit – Checks

Check Tile and Application

All checks are displayed in list format on

the left. To see more detailed information

about a specific check on the right,

simply select it.

The following configuration options are

possible for checks:

– Change the threshold values that trigger alerts of

different priorities.

– Set up e-mail notifications so that specific people are

informed when alerts are issued.

In addition, you can perform the following actions on

checks:

– Run checks on a once-off basis, regardless of their

configured schedule or status

– Switch checks off and on



SAP HANA Cockpit – Memory Usage

Used Memory Tile and Memory Overview Application

Indicates total amount of memory currently

used by the SAP HANA database in relation

to the allocation limit

For multiple-host systems, values are

displayed for all worker hosts.

The host with the highest

(most critical) memory usage is

also shown.

This tile provides access to the

Memory Overview app where you can analyze current

memory usage in more detail.

If the system is distributed, memory usage is available

for each host individually. The initial view shows the

memory usage of the master host. You can switch

between hosts as necessary.



SAP HANA Cockpit – CPU Usage

CPU Usage Tile and Resource Utilization Application

Indicates the percentage of CPU used by

the SAP HANA system

For multiple-host systems, values are

displayed for all worker hosts.

The host with the highest

(most critical) CPU usage is also

shown.


Resource Utilization app where

you can visualize and explore the usage history of key

system resources (CPU, memory, and disk).



SAP HANA Cockpit – Disk Usage

Disk Usage Tile and Resource Utilization Application

Indicates disk usage on disks belonging to

the SAP HANA database

Values are displayed for all disks.

The disk with the highest (most

critical) disk usage is also shown.


Resource Utilization app where

you can visualize and explore the

usage history of key system

resources (CPU, memory, and disk).



SAP HANA Cockpit – Further Tiles I

System Restarts Tile

Indicates the number of services that have been manually or automatically restarted.

If restarts have been detected, this tile provides access to the Alerts app where you can view the related

alerts.

Number of Dumps Tile

Indicates the number of dump files in the system's trace directory.

This tile provides access to the Trace tool of the SAP HANA Web-based Development Workbench.

Note: The Trace tool of the SAP HANA Web-based Development Workbench opens in a new window and

requires additional roles, either sap.hana.xs.ide.roles::TraceViewer or the parent role

sap.hana.xs.ide.roles::Developer.

Manage Users and Roles Tile

Provides access to the Security tool of the SAP HANA Web-based Development Workbench where you can

provision users

Note: The Security tool of the SAP HANA Web-based Development Workbench opens in a new window and

requires additional roles, either sap.hana.xs.ide.roles::SecurityAdmin or the parent role

sap.hana.xs.ide.roles::Developer.



SAP HANA Cockpit – Further Tiles II

Manage Application Lifecycle Tile

Provides access to SAP HANA Application Lifecycle Management

Note: SAP HANA Application Lifecycle Management opens in a new window and requires the additional role

sap.hana.xs.lm.roles::Administrator.

Tiles without drill down

Query Load

– Indicates the number of current blocked transactions in the system, as well as expensive statements

recorded by the expensive statements trace

Active Sessions

– Indicates the number of current running and idle sessions in the system

Running Jobs

– Indicates the number of jobs currently in progress

General Information

– Provides information about system version, time of last upgrade, and platform



SAP HANA Cockpit – Further Catalogs

Further Catalogs

Applications that provide core

administration and monitoring features

are available by default.

Applications that allow you to manage

optional components are only available if

the optional component has been

installed.

Examples:

– SAP HANA dynamic tiering

– SAP HANA smart data streaming

– SAP DB Control Center

Groups can be managed using the Group

Panel, all available catalogs and tiles are

shown in the Tile Catalog





Lets you perform aggregate monitoring of SAP database

products, including SAP HANA

Use control center to check the overall health of systems

located within a data center or across your enterprise.

Status displays focus on four high-level areas:

– Availability

– Performance

– Capacity

– Alerts

Drill-down into details opens the system’s cockpit (e.g.

SAP HANA cockpit) which provides more information

about the availability, capacity, performance, and alert

status of the system

http://<host>:<port>/sap/hana/dbcc



SAP HANA Multitenant Database Containers: Overview

Multitenant database containers are a new way to run multiple applications/scenarios on one SAP

HANA system

1 system database and multiple tenant databases

Shared installation of database system software

Strong isolation features, the system database and each

of the tenant databases have their own:

– database users,

– database catalog,

– repository,

– persistence,

– backups,

– traces and log files

Distinction between tasks performed at system level and

those performed at database level

Integration with data center operation procedures

*tenant database = database container

Application 1

SAP HANA system

Application 2

Tenant

database 1*

Tenant

database 2

System

database



Multitenant Database Containers: Monitoring Concept

Specific properties of SAP HANA multitenant database containers regarding administration/monitoring

The system database plays a central role

– It is responsible for overall system and resource monitoring

– It can initiate both restarts of the system database itself and of individual tenant databases

– It can initiate both backups of the system database itself and of individual tenant databases.

– Recoveries are always initiated by the system database

– Tenant databases are always created/dropped by the system database

– Resource limits for tenant databases are configured on the system database

Tenant databases are monitored individually

Alert, trace, parameter and user configuration is done for each tenant database individually



SAP HANA Multitenant Database Containers: Monitoring Tools

Monitoring Tools

SAP HANA studio has been adapted to be able to

– Connect to the system database and any tenant database

– Display the database type in the Systems view

– Monitor the system database and any tenant database using the Administration

editor

– Change database specific parameters

SAP HANA cockpit can be used to monitor the system database and any tenant

database

DBACockpit and Solution Manager can be used to monitor the system database and

any tenant database



SAP HANA Studio – SQL Editor

SQL Editor

As a default, all SQL statements are now prepared

before they are executed

You can change the default behavior in the studio

preferences



SAP HANA Studio – Extended Performance Analysis I

Plan Visualizer - Overview

Visualization of execution plans will automatically display an

Overview page

Key KPIs are displayed to provide an overview before

starting a detailed details

Plan Visualizer - Statement Statistics

Visualization of execution plans for SQLScript procedures

also displays a set of statistics for each SQL statement

involved in the procedure

Provides easy drill-down into the most expensive SQL

statement



SAP HANA Studio – Extended Performance Analysis II

Plan Visualizer - Tables Used

Provides an overview on which tables have been used

during the processing of a statement

Displays 3 metrics per table:

– maximum number of entries processed, i.e. the

overall output cardinality of any processing step

on that table in the statement execution.

– number of accesses, i.e. how often a table has

been accessed during statement execution

– maximum processing time, i.e. the maximum

processing time across the possibly multiple table

accesses

Double-clicking on any row (table) leads to a corresponding operator list filtered for physical operators accessing the selected

table.



SAP HANA Studio – Extended Performance Analysis III

Plan Visualizer - Network

For queries executed in a distributed landscape, the Network view visualizes sequential

network data transfers between different servers based on their given timestamps

Information displayed:

– X-axis: servers involved

– Y-axis: time elapsed since query execution

– duration of network data transfers represented by rectangular bars

– size of data transferred in bytes

Plan Visualizer - Performance Trace

Displays list of operators for which performance trace data exists

The data can be viewed by selecting any of the operators

given in the list.

The view consists of two main sections:

– left: list of operators you can select to view performance

trace data

– right: performance trace data for the selected operator



SAP HANA Studio – Extended Performance Analysis IV

Plan Trace

Collects SQL queries (along with their execution plans)

executed in a given time frame for a particular application

(session).

Only 'SELECT' statements are currently traced - all other

kinds of statements including procedures are planned

to be supported in the future

Plan trace configuration can be accessed in two ways:

– Context menu on a particular session in Administration

editor -> Performance -> Sessions

– Administration editor -> Trace Configuration tab

When an active trace is stopped, the Plan Trace Editor

will be opened automatically, displaying the traced queries

Double-clicking a particular statement (or using the

context menu entry 'Visualize Plan‘) displays the execution plan



SAP HANA Web-based Development Workbench

SQL Console Extended SQL Console (part of the "Catalog" perspective) to support implicit

and explicit performance measurement while executing a SQL statement

Implicit performance measurement provides

– Execution Time information: DB, XS, and frontend layer

– Additional information: table locks, system alerts.

Detailed performance analysis supports the repeated execution of statements

thus allows to check whether performance characteristics are stable

Expensive Statements Trace Available in the "Trace" perspective

Supports filtering for passport-based application sessions

For each statement metrics such as start time, number of processed

records, etc. are displayed

Summary provides information on the overall SQL load:

– number of statements executed

– number of unique statements executed

– number of result records



Embedded Statistics Service

Re-activating Checks

If the SQL statements to collect data suffer from heavy overall system load and do not return in the expected timeframe, the

corresponding check or data collector is deactivated automatically.

With SPS09 such checks and collectors get automatically enabled again after a specific interval (default: one hour)

New Alerts

Several new checks/alerts have been created in the areas of

– System Replication

– MVCC

– Discrepancy between host server times

– Disk usage in multiple-container systems

– SAP HANA dynamic tiering

– SAP HANA smart data streaming



Memory Limit Enhancements

Memory Limit Enhancements

User specific memory limit in addition to the global statement memory limit

– ALTER USER <username> SET PARAMETER STATEMENT MEMORY LIMIT = <gb>

– If both a global statement memory limit and a user statement memory limit are set, the user specific one (higher or lower)

will precede

– Unsetting the user parameter will bring the global statement memory limit into effect for the user

– Setting the user parameter to 0 will disable any statement memory limit for the user

– You can set the statement memory limit for a user in the User editor of the SAP HANA studio.

Statement Memory Limit Threshold

– Parameter statement_memory_limit_threshold in file global.ini, section memorymanager

– Allows to specify a percentage of total memory (as per global_allocation_limit).

– If this parameter is set, the global or user statement_memory_limit is only evaluated, if the total memory usage reaches this

threshold.

– No statements have to be cancelled if the total memory usage is below this threshold.

– This feature allows expensive statements, which consume more than the allowed statement memory limit, to finish

successfully during periods of low load, e.g. during the night.



CPU Time Measurement

CPU Time Measurement

Resource consumption collection has to be enabled manually:

– Configuration file global.ini, section resource_tracking, parameters enable_tracking and cpu_time_measurement_mode

Expensive statements trace contains column CPU_TIME which shows the CPU usage of the traced statements

Monitoring view M_SERVICE_THREADS shows CPU time values in columns CPU_TIME_SELF (CPU time of thread) and

CPU_TIME_CUMULATIVE (CPU time of thread and associated children) – which are also shown in the Threads view of the

Administration editor in HANA studio

Additional Features


Additional Features

Shortened Restart Time

Fast HANA Restart

Restart time of SAP HANA is mainly determined by the time needed to load the row store into memory

Whenever the database was shutdown normally, the restart can be significantly sped up by re-using existing row store shared

memory segments

Parameter to enable this feature: file indexserver.ini, section row_engine: keep_shared_memory_over_restart = true/ false

Preconditions for fast restart:

– Usage of Embedded Statistics Service

– Restart after normal shutdown

– During index server shutdown phase

o No active write transaction

o No versions on row store tables

o No locks on tables

Trace files indicate which kind of restart happens: Shutdown: Keeping RS shared memory at RowStore shutdown

Preconditions for reuse of RS shared memory is satisfied

RS shared memory will be used for RowStore segments at next service startup

Restart: Reattaching RS shared memory for RowStore segments

2 RS segments loaded in 0.28 sec (457.143MB/s)


Additional Features

Web Dispatcher

Web Dispatcher

The internal HANA Web Dispatcher has been converted to a native HANA service named "webdispatcher". It replaces the

previous standalone executable "sapwebdisp_hdb".

Main benefits and changes:

– Administration (start/stop) and monitoring (CPU, memory) of the internal web dispatcher are now available in HANA studio.

– Configuration via webdispatcher.ini in HANA studio. The previous profile sapwebdisp.pfl is removed, settings are migrated

automatically.

– Changed trace file name to webdispatcher_<host>.<port>_dev_webdisp.

– Additional trace file webdispatcher_<host>.<port>.<3_digit_file_counter>.trc contains information like start/stop,

configuration changes etc.

– The web dispatcher admin tool is now accessible at http://<host>:<port>/sap/hana /xs/wdisp/admin. Log on with a database

user that has role sap.hana.xs.wdisp.admin::WebDispatcherAdmin to use it.

– In particular, you can use this tool to manage SSL certificates and other personal secure environments (PSEs) used by SAP

HANA. SAP's command line cryptography tool SAPGENPSE is no longer required.


Additional Features

Monitoring Views

Enhancements regarding monitoring views

The load monitor data is now available in SQL tables (M_LOAD_HISTORY_...). This provides faster access to the data and

allows other tools than HANA studio (e.g. SAP HANA cockpit and DBACockpit) to display a graph of the load monitor KPIs.

Columns CALLER (the service which called this thread) and CALLING (the service which the thread calls) have been added to

monitoring view M_SERVICE_THREAD_SAMPLES.

Enhanced MVCC monitoring (several new columns in M_MVCC_OVERVIEW, new view M_CS_MVCC)

New monitoring views for new features, e.g. multitenant database containers, streaming ,dynamic tiering , …


Disclaimer

This presentation outlines our general product direction and should not be relied on in making

a purchase decision. This presentation is not subject to your license agreement or any other

agreement with SAP.

SAP has no obligation to pursue any course of business outlined in this presentation or to

develop or release any functionality mentioned in this presentation. This presentation and

SAP’s strategy and possible future developments are subject to change and may be changed

by SAP at any time for any reason without notice.

This document is provided without a warranty of any kind, either express or implied, including

but not limited to, the implied warranties of merchantability, fitness for a particular purpose, or

non-infringement. SAP assumes no responsibility for errors or omissions in this document,

except if such damages were caused by SAP intentionally or grossly negligent.

© 2014 SAP SE or an SAP affiliate company. All rights reserved. 35 Public

How to find SAP HANA documentation on this topic?

• In addition to this learning material, you can find SAP HANA

platform documentation on SAP Help Portal knowledge center at

http://help.sap.com/hana_platform.

• The knowledge centers are structured according to the product

lifecycle: installation, security, administration, development:

SAP HANA Options

SAP HANA Advanced Data Processing

SAP HANA Dynamic Tiering

SAP HANA Enterprise Information Management

SAP HANA Predictive

SAP HANA Real-Time Replication

SAP HANA Smart Data Streaming

SAP HANA Spatial

• Documentation sets for SAP HANA options can be found at

http://help.sap.com/hana_options:

SAP HANA Platform SPS

What’s New – Release Notes

Installation

Administration

Development

References

•

http://help.sap.com/hana_platform

http://help.sap.com/hana_options

Thank you

Contact information

Melanie Handreck

SAP HANA Product Management

[email protected]

mailto:[email protected]

© 2014 SAP SE or an SAP affiliate company. All rights reserved. 37 Public

© 2014 SAP SE or an SAP affiliate company. All rights reserved.

No part of this publication may be reproduced or transmitted in any form or for any purpose without the express permission of SAP SE or an SAP affiliate company.

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National product specifications may vary.

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are those that are set forth in the express warranty statements accompanying such products and services, if any. Nothing herein should be construed as constituting an

additional warranty.

In particular, SAP SE or its affiliated companies have no obligation to pursue any course of business outlined in this document or any related presentation, or to develop or

release any functionality mentioned therein. This document, or any related presentation, and SAP SE’s or its affiliated companies’ strategy and possible future

developments, products, and/or platform directions and functionality are all subject to change and may be changed by SAP SE or its affiliated companies at any time for

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