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SAP HANA SPS 08 - What’s New? Administration & Monitoring SAP HANA Product Management May, 2014 (Delta from SPS 07 to SPS 08)

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Page 1: Hana Sps08 New Adminmoni

SAP HANA SPS 08 - What’s New? Administration & Monitoring

SAP HANA Product Management May, 2014

(Delta from SPS 07 to SPS 08)

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© 2014 SAP AG. All rights reserved. 2 Public

Content

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

supportability of the SAP HANA database between the SPS 07 version and the SPS 08 version.

It covers changes to 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.

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© 2014 SAP AG. All rights reserved. 3 Public

Agenda

Improved Monitoring and Supportability

New monitoring overview: SAPUI5 based dashboard

Improved diagnosis information for blocking situations

New options to collect diagnosis information

Improved resource monitoring

Improved statement analysis

More safety for production systems: warnings are displayed, when data is to be changed

Improved usability

Statistics service enhancements

SLD extension

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© 2014 SAP AG. All rights reserved. 4 Public

Agenda

Additional Features

Support for planning engine views/models

Import of geospatial information (shapefiles)

Extended system replication configuration

New/enhanced monitoring views

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Improved Monitoring and

Supportability

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© 2014 SAP AG. All rights reserved. 6 Public

Improved Monitoring and Supportability

New Monitoring Dashboard

New SAPUI5 Based Monitoring Dashboard

Web-browser-based dashboard that visualizes key

aspects of system health and configuration, for example:

– Current high and medium priority alerts

– Memory and CPU usage

– Availability of data backups

Drill down to views containing more detailed information

Role sap.hana.admin.roles::Monitoring is required, which

is not granted by default to the standard MONITORING

role

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© 2014 SAP AG. All rights reserved. 7 Public

HANA

Improved Monitoring and Supportability

Improved Diagnosis Information for Blocking Situations

Emergency Support Mode

SAP HANA studio collects

information about systems using SQL

When a system cannot be reached

by SQL or it is experiencing major

performance issues due to high load

or blocking situations, information

can instead be collected using the

connection of the SAP start service

(sapstartsrv).

The Administration editor diagnosis mode provides access to:

– The operational status of all services in the system

– Log and trace files

– The collection of diagnosis information into a zip file

– All connections, transactions, blocked transactions, and threads in the system

If necessary, you can cancel individual connections and transactions, or even

cancel all transactions.

sapstartsrv

python

Indexserver

hdbcons

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© 2014 SAP AG. All rights reserved. 8 Public

Improved Monitoring and Supportability

Improved Diagnosis Information for Blocking Situations

Improved Information for Cancel Status

System view M_CONNECTIONS, column CONNECTION_STATUS shows if the cancellation of a connection has been

requested and if the cancellation is already ongoing.

The following values are possible:

– IDLE (CANCEL REQUESTED)

The connection is idle, a cancellation has been requested, but the connection is not yet canceling

– RUNNING (CANCEL REQUESTED)

The connection is working on a request, a cancellation has been requested, but the connection is not yet canceling (meaning

not in rollback yet)

– RUNNING (CANCELING)

The connection is working on a request, a cancellation has been requested, and the connection is already canceling

(meaning already in rollback)

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© 2014 SAP AG. All rights reserved. 9 Public

Improved Monitoring and Supportability

Improved Diagnosis Information for Blocking Situations

Runtime Environment Dump File Collection

To analyze issues e.g. if the system is unresponsive, RTE dump files can

be created

On the Diagnosis Files tab, choose Diagnosis Information -> Collect…

You can specify:

– From which index server(s) RTE dump files are to be collected

– The number of RTE dump file sets to be collected

– The interval (in minutes) at which RTE dump files are to be collected

For each specified index server, an RTE dump file containing information

about threads, stack contexts, and so on is created and stored in the file

indexserver_<SAPLOCALHOST>_<PORT>_runtimedump.trc.

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© 2014 SAP AG. All rights reserved. 10 Public

Improved Monitoring and Supportability

Enhanced Diagnosis Information Collection

New Options to Collect Diagnosis Information

For the collection of all diagnosis information, it is now possible to

enter a specific time period, by default the last 7 days.

Information from system views can be included when the database

is online (this option is not available in diagnosis mode).

Monitoring views for the planning engine are then included as well.

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© 2014 SAP AG. All rights reserved. 11 Public

Improved Monitoring and Supportability

Improved Resource Monitoring

Redesigned Memory

Allocation Statistics

Components shown in

Memory Allocation Statistics

now have more

comprehensible names

Allocator section has been

renamed to Subcomponents

and now also includes row

store information

Subcomponents are now

grouped and displayed in a

collapsible tree view

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© 2014 SAP AG. All rights reserved. 12 Public

Improved Monitoring and Supportability

Improved Resource Monitoring

Statement Memory Tracking and Statement Memory Limitation:

Avoid Uncontrolled Statement Memory Allocation

The peak memory consumption of a statement can be tracked und displayed in Expensive Statements.

Resource consumption collection has to be enabled manually:

– Configuration file global.ini, parameters enable_tracking and memory_tracking

Additionally the HANA administrator is able to define a global statement memory limit in the database:

– Configuration file global.ini, parameter statement_memory_limit

If a statement exceeds the memory limit, it will be cancelled

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© 2014 SAP AG. All rights reserved. 13 Public

Improved Monitoring and Supportability

Improved Resource Monitoring

Enhanced Lock Classification

Locks are classified by component

Monitoring views M_SERVICE_THREADS and M_SERVICE_THREAD_SAMPLES contain this component in column

LOCK_WAIT_COMPONENT to provide a hint on the purpose of the lock blocking the current thread.

Column Lock Wait Component can also be displayed on Performance tab -> Threads

Examples are:

– Network IO

– File IO

– Basis System

– Calculation Engine

– Join Engine

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© 2014 SAP AG. All rights reserved. 14 Public

Improved Monitoring and Supportability

Improved Statement Analysis

Extended Content of Plan Visualizer

For column store queries, the visualization of physical

table access plan is now completed

This includes the display of inverted index access

and predicate evaluation

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© 2014 SAP AG. All rights reserved. 15 Public

Improved Monitoring and Supportability

Improved Statement Analysis

Operator List for Plan Visualizer

The Operator List lists detailed characteristics of all operators within a current plan (visualized + executed).

It can be used to dynamically explore the operator set along user defined filters in order to pinpoint specific operators of

interest.

For example you might:

– Filter all operators

consuming a certain

minimal CPU time

– Then order those

operators along the

number of input rows

– Further restrict the filter

to a specific operator

type (e.g. "Column

Search”)

– And then double-click on an operator of interest in order to check its positioning within a visualized plan

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© 2014 SAP AG. All rights reserved. 16 Public

Improved Monitoring and Supportability

Improved Statement Analysis

Plan Cache: Keep Set of Parameters

The parameter set of a prepared statement is stored in monitoring view M_SQL_PLAN_CACHE_PARAMETERS to allow for

the easy re-execution of a specific query:

– First parameter set is stored when the total execution time of the statement is greater than parameter

plan_cache_parameter_sum_threshold (default 1000ms).

– Afterwards, the parameter values will be updated if the statement’s single execution time is greater than parameter

plan_cache_parameter_threshold (default 100ms) and its last captured execution time.

Parameters to enable this feature:

– plan_cache_parameter_enabled: Activate/deactivate

capture of parameter values of prepared statements

– plan_cache_parameter_for_lob_enabled: Activate/

deactivate capture of BLOB/CLOB/NCLOB

parameter values.

In the Admin editor of SAP HANA Studio on tab

Performance -> SQL Plan Cache the stored parameter

set is used when you choose “Visualize Plan” or

“Prepare in SQL Console”

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Improved Monitoring and Supportability

Improved Statement Analysis

Direct Access to Plan Visualizer

It is now possible to display the visualized plan for a specific statement in the Expensive Statements Trace or SQL Plan Cache

view

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© 2014 SAP AG. All rights reserved. 18 Public

Improved Monitoring and Supportability

Improved Statement Analysis

Link Between SQL Plan Cache and Expensive Statements Trace

Navigation between the Expensive Statements Trace and the SQL Plan Cache view has been improved

You can display a specific statement in the other view using the context menu option Navigate To

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Improved Monitoring and Supportability

System Usage Type

Display of System Usage Type

You can configure the usage type of an

SAP HANA system (for example,

production, development) during

installation with the system_usage

parameter or later by changing the system properties.

SAP HANA studio evaluates this parameter to warn users when they

are about to perform critical operations on systems with usage type

production (for example, execute SQL statements, stop or restart the

system, perform a data backup, and so on)

This does not prevent data manipulation in productive systems,

however it keeps reminding you to be careful

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© 2014 SAP AG. All rights reserved. 20 Public

Improved Monitoring and Supportability

Improved Usability

User-Defined SQL Statements for System Monitoring

For customized monitoring, it is possible to save

your own SQL statements on the System Information

tab of the Administration editor for convenient

repeated execution.

You can create and save individual statements

directly on the System Information tab.

Alternatively, you can import multiple statements as

text or ZIP archive files

To organize large numbers of statements

meaningfully, you can define a folder structure.

Predefined statements are stored in the System

folder.

When you save the Administration editor, all

statements, together with the defined folder structure,

are saved to a single XML file and are available on

the System Information tab of the Administration

editor for all systems registered in the SAP HANA studio.

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Improved Monitoring and Supportability

Improved Usability

Reworked Systems View Context Menu

The Systems View context menu has been re-structured by categories to provide a better overview and easy access to all

actions for the user.

Old structure: New structure:

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© 2014 SAP AG. All rights reserved. 22 Public

Improved Monitoring and Supportability

Improved Usability

Command Line Parameters for SAP HANA Studio

The SAP HANA studio program accepts command line parameters that allow you to specify the system to be connected to

immediately on startup.

Call the SAP HANA studio executable with parameters for host, instance number and user:

dbstudio.exe -h <host> -n <instance number> -u <username>

This can be useful to system administrators, as well as to other programs that call the SAP HANA studio, as this allows such

programs to pass connection information to the studio.

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Improved Monitoring and Supportability

Statistics Service

Improved Documentation

All statistics service views are now commented in the catalog, check the view definition to see the comments

New Alerts Expiration of database user passwords: checks if any password expires soon

Total memory usage of row store: determines the current memory size of the row store per host

Table growth of row store tables: determines the growth rate of row store tables

Row store fragmentation: check for fragmentation of row store

Inconsistencies in schemas: check for schema inconsistencies

Runtime of log backups currently running: determines if the most recent log backup terminates in the given time.

Enablement of automatic log backups: determines whether automatic log backup is enabled.

Storage snapshot is prepared: determines if the period, during which the database is prepared for a storage snapshot,

exceeds a given threshold.

Total memory usage of table-based audit log: determines which percentage of the effective allocation limit is being

consumed by the database table used for table-based audit logging.

Granting of SAP_INTERNAL_HANA_SUPPORT_ROLE: determines if the internal support role

(SAP_INTERNAL_HANA_SUPPORT) is currently granted to any database users. The administrator should check if the

corresponding users still need the role.

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Improved Monitoring and Supportability

Solution Manager Integration

SLD Extension

A new (optional) software component can now be registered to SLD using the SAP HANA SLD Data Supplier: SAP HANA

Smart Data Access.

The AFL package has been split into several packages. Therefore the AFL reporting for SLD has been adapted as well.

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Additional Features

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Improved Monitoring and Supportability

Additional Features

Support for Planning Engine

EPM models and EPM query sources are shown

in the Systems view in the catalog tree.

If needed for support reasons, a planning engine

trace can be activated. If parameter

enable_export_wizard in section planningengine

of file indexserver.ini is set to true, the

Planning Engine Trace section is available on

the Trace Configuration tab.

Monitoring views for planning engine are contained

in the diagnosis information collection.

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Improved Monitoring and Supportability

Additional Features

Import of Geospatial Information

(shapefiles)

SAP HANA supports the ESRI shapefile format. ESRI

shapefiles are used to store geometry data and attribute

information for the spatial features in a data set.

You can import ESRI shapefiles into dedicated column-

store tables using the import feature of SAP HANA studio:

– From the main menu, choose File -> Import.

– Select import source SAP HANA -> ESRI Shapefiles.

The shapefiles are imported into column-store tables in

the specified schema.

Each shapefile corresponds to one table.

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Improved Monitoring and Supportability

Additional Features

Extended system replication configuration

To offer higher levels of availability you can link

together multiple systems in a multitier system

replication landscape.

After setting up a basic system replication

scenario you add a third system to provide

another level of redundancy.

In a multitier setup the primary system is

always on tier 1, a tier 2 secondary has a

primary system as its replication source and

a tier 3 secondary has the tier 2 secondary as

its replication source.

The tier 3 secondary can now also be added

using SAP HANA studio.

On each node only those actions are provided,

which are currently possible – depending on the

system status.

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Improved Monitoring and Supportability

Additional Features

Enhancements regarding monitoring views New monitoring view M_CS_LOADS shows when which column of a column store table has been loaded into memory

New monitoring view M_MVCC_OVERVIEW provides information about the row store multi-version concurrency control

(MVCC) manager

New monitoring view M_TABLE_SNAPSHOTS provides information about tables which are blocked by table-wise garbage

collection

Monitoring view M_TRANSACTIONS column ACQUIRED_LOCK_COUNT now also contains statistics for column store

System views can now be exported in CSV format

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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.

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How to find SAP HANA documentation on this topic?

SAP HANA Platform SPS

What’s New – Release Notes

Installation – SAP HANA Server Installation Guide

Security

Administration – SAP HANA Administration Guide

Development – SAP HANA Developer Guide

References – SAP HANA SQL Reference

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

SAP Help Portal knowledge center at http://help.sap.com/hana_platform.

• The knowledge center is structured according to the product lifecycle: installation, security, administration,

development. So you can find e.g. the SAP HANA Server Administration Guide

in the Administration section and so forth …

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Thank you

Contact information

Melanie Handreck

SAP HANA Product Management

[email protected]

To get the best overview of what’s new in SAP HANA SPS 08, read this blog.

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© 2014 SAP AG. All rights reserved.

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