Transcript What`s new in OE DB - FTP Directory Listing

What’s New in the
OpenEdge Database
Norwegian PUG Event
Richard Banville, Fellow, OpenEdge Development
April 8, 2014
Introduction
 Parallel development between OpenEdge 10.2B and OpenEdge 11
• Including rollout of some enhancements in the older releases
• Some OE 10.2B releases occurred after OE 11.0 shipped
– This confuses where some features exist
 Release information provided with each topic
• Indicates there and above
 Not a deep dive into each feature
• Just going to scratch the surface
2
© 2014 Progress Software Corporation. All rights reserved.
Agenda
 Major Features
 Not So Major Features
 Relatively Unknown or Forgotten Features
3
© 2014 Progress Software Corporation. All rights reserved.
Major Features
4
© 2014 Progress Software Corporation. All rights reserved.
Transparent Data Encryption – TDE (OE 10.2B)
Very low overhead (0 – 4%)
Transparent
Flexible
Secure
5

Application transparent data encryption

Full index query support

No need to move data

Encrypt individual objects or areas

Can change encryption policies online

Storage engine encrypts blocks on disk

Provides secure encryption key storage

Support industry standard ciphers

Limits access to physical data
© 2014 Progress Software Corporation. All rights reserved.
OpenEdge Transparent Data Encryption (TDE)
Database Storage Engine
How Does It Work?
Keys
Key
Store
Write I/O
Encrypted Data
Encrypt
Shared
Memory
plain
text
Buffer Pool
(plain text block)
&
Database
Decrypt
Policies
Policy
Area
Read I/O
Product Install

6
Key store
• Database Master Key (DMK)
• Admin/User Passphrase
• Manual/Automatic
© 2014 Progress Software Corporation. All rights reserved.

Encryption Policy Area
• Encryption Policies
• What to encrypt
• How to encrypt (cipher)
Other Encryption Features
 Encrypted backup/restore
 Optionally encrypt binary data dump
 Migration
• Encrypt data over time or immediately
• No application changes
– Full index capabilities on encrypted data
 Supporting utilities
• Enable/disable
• Epolicy manage <area | table> rekey | update | encrypt
• Epolicy scan
• Table/index move w/possible re-encryption
• Can change encryption policies online
7
© 2014 Progress Software Corporation. All rights reserved.
Multi-tenant Tables (OE 11.0)
Simplifies Development of Multi-tenant
Applications
Car Rental
 Ease maintenance & app. upgrades
Application
 Basic multi-tenant paradigm
Multi-tenancy
• Multi-tenant tables built into the
database
 Tenants share same schema
definition
 Data physically partitioned by tenant
identity
Customer
Tenant 1
(Hertz-Boston)
Tenant 2
*Fictitious example
8
© 2014 Progress Software Corporation. All rights reserved.
2 Mark Wahlberg
3 Steve Carrell
4 Robin Williams
7 Harrison Ford
(Hertz-Chicago)
 Minimal application changes
• Just establish tenant identity
(per database)
1 Ben Affleck
8 Berrnie Mac
2 Dennis Rodman
Tenant 3
(Rent-a-wreck)
7 Nick Nolte
9 Lindsay Lohan
10 Charlie Sheen
Multi-tenant Tables (OE 11.0)
Simplifies Development of Multi-tenant
Applications
Car Rental
Application
 Index keys unique per tenant partition
Multi-tenancy
 Shared & tenant sequences/tables
 Query is tenant specific
• Authenticate as tenant
– _User
– Client Principal
– SQL only _users
Customer
Tenant 1: Hertz-Boston
FIND CUSTOMER
WHERE
cust-num=2.
Tenant 2
• Same application & schema
*Fictitious example
9
© 2014 Progress Software Corporation. All rights reserved.
2 Mark Wahlberg
3 Steve Carrell
4 Robin Williams
7 Harrison Ford
(Hertz-Chicago)
• Assert tenant identity
 Useful for database consolidation
1 Ben Affleck
8 Berrnie Mac
2 Dennis Rodman
Tenant 3
(Rent-a-wreck)
7 Nick Nolte
9 Lindsay Lohan
10 Charlie Sheen
Multi-tenant Tables (OE 11.0)
Simplifies Development of Multi-tenant
Applications
Car Rental
Application
 Keys unique per tenant partition
Multi-tenancy
 Shared & tenant sequences/tables
 Query is tenant specific
• Authenticate as tenant
– _User
Tenant 1: Hertz-Boston
FIND CUSTOMER
WHERE
cust-num=2.
1 Ben Affleck
2 Mark Wahlberg
3 Steve Carrell
– Client Principal
4 Robin Williams
– SQL only _users
7 Harrison Ford
• Assert tenant identity
 Useful for database consolidation
• Same application & schema
*Fictitious example
10
Customer
© 2014 Progress Software Corporation. All rights reserved.
Tenant 3: Rent-a-wreck
FIND CUSTOMER
WHERE
cust-num=2.
8 Berrnie Mac
2 Dennis Rodman
7 Nick Nolte
9 Lindsay Lohan
10 Charlie Sheen
Multi-Tenancy Enhancements
 Resource Governors (OE 11.1)
• -LGovernor - % of lock table any one tenant (user group) is allowed to occupy
• -nGovernor – Number of database connections any one tenant is allowed to consume
 Tenant Index Rebuild online (OE 11.3)
• proutil
proutil <db>
-C-C
enablemtidxbld
<db>
enablemtidxbld
(online & offline)
• proutil <db> -C mtidxbuild table <name> index <name>
proutil <db> -C mtidxbuild table <db> index <name>
tenant | group <name>
tenant | group <name>
• Acquires EXCLUSIVE table partition lock
• Tenant data for associated table is restricted to no-lock
• Index being rebuilt is offline
• Can run multiple concurrently
• Data access to table available for all other tenants and other tables of this tenant
11
© 2014 Progress Software Corporation. All rights reserved.
Multi-Tenancy Enhancements
 Tenant Data Recovery (OE 11.3)
• Basically a restore, roll forward, binary transfer between databases
<db>-C-Cdatamove
datamove
source
<db>
• proutil
Proutil <db>
source
<sourcedb>
tenant
<name>
table
<name>
sequence
<name>
[recs<n>
<n>]
[ tenant
<name>
[ table
<name>
] | [ sequence
< name>
] [ recs
]
• Schema validation performed automatically
Progress OpenEdge Tenant/Group Data Move
Source Database: <source_db>
Destination Database: <dest_db>
Table Instance
Control Txn Size
1. Move Table Data by Tenant
2. Move Sequence Data by Tenant
3. Move Table Data by Group
4. Set Records per Transaction ( Current: 100 )
5. Quit
Enter your selection:
12
© 2014 Progress Software Corporation. All rights reserved.
Not So Major
Features
13
© 2014 Progress Software Corporation. All rights reserved.
Utility Enhancements
 Roll forward enhancements (OE 11.3)
• rfutil
rfutil <db>
forward –ailist
<ailistname>
<db>-C-Crollrollforward
–ailist
<ailist-name>
• Can now specify a list of files to roll forward rather than individual ones
– Avoids redo on each restart
• Also per file completion status information provided
10:01:10: 50% of aimage file processed (100 notes processed)...
 Dbrestrict (OE 11.3)
• Restricts access to the database for processes other than the specified operation
proutil <db> -C dbrestrict [ datamove | rollforward ]
[ enable | disable | status]
• Unlike “oplock”, allows access by certain read-only activities and prostrct add
• For “datamove” allows DB Broker, promon & proshut
• Prorest can enable –dbrestrict too!
14
© 2014 Progress Software Corporation. All rights reserved.
Utility Performance
 Online Backup Pause (OE 11.3)
• Requires new backup header version for bi cluster information
– Applies to online only
– Not backward compatible
– On by default
– Use –bibackup all option for backward compatibility
• Backup active clusters only
• Skips unused clusters regardless of where they are in the cluster ring or bi file
• Restore will reorder cluster to compact state
probkup online <db> [ incremental ] <device-name>
[ bibackup {active | all } ]
[enableai ]
[ enableaiarchiver – aiarchdir <dir-list > ]
15
© 2014 Progress Software Corporation. All rights reserved.
Index Rebuild Performance (OE 10.2B06, OE 11.2)
-TB
64
-datascanthreads
# threads for data scan phase
1.5 X #CPUs
-TMB
merge block size ( default -TB)
64
-TF
merge pool fraction of system memory (in %)
80%
-mergethreads
# threads per concurrent sort group merging
X -threadnum =
1.5 X #CPUs
-threadnum
-TM
-rusage
-silent
16
sort block size (8K – 64K, note new limit)
# concurrent sort group merging
# merge buffers to merge each merge pass
report system usage statistics
a bit quieter than before
© 2014 Progress Software Corporation. All rights reserved.
2 or 4
32
-rusage
-silent
Index Rebuild Performance (OE 10.2B06, OE 11.2)
-TB
64
-datascanthreads
# threads for data scan phase
1.5 X #CPUs
-TMB
merge block size ( default -TB)
64
-TF
merge pool fraction of system memory (in %)
80%
-mergethreads
# threads per concurrent sort group merging
X -threadnum =
1.5 X #CPUs
-threadnum
-TM
-rusage
-silent
17
sort block size (8K – 64K, note new limit)
# concurrent sort group merging
# merge buffers to merge each merge pass
report system usage statistics
a bit quieter than before
© 2014 Progress Software Corporation. All rights reserved.
2 or 4
32
-rusage
-silent
Networking Control
Philosophy: Throughput by keeping server busy without remote client waits!
 Process-based control
• -Ma, -Mn, -Mi
– Controls the order users are assigned to servers
 Resource-based control
• -Mm <n>
– Maximum size of network message
– Client & server startup
 New tuning knobs – resource-based control
• Alleviate excessive system CPU usage by network layer
• Control record data stuffed in a network message
– Applicable for “prefetch” queries
18
© 2014 Progress Software Corporation. All rights reserved.
Networking – Prefetch Query
 No-lock query with guaranteed forward motion or scrolling
• Multiple records stuffed into single network message
• Browsed static and preselected queries scrolling by default
FOR EACH customer NO-LOCK:
….
end.
DO PRESELECT EACH customer NO-LOCK:
….
end.
define query cust-q
for customer SCROLLING.
open query cust-q
FOR EACH customer NO-LOCK.
repeat:
get next cust-q.
end.
19
© 2014 Progress Software Corporation. All rights reserved.
-NmsgWait (OE 10.2B06 & OE 11.1)
TCP I/O
Server
-Mm 8192
Remote
Client
 Determines how long a server waits for remote request
 Benefit: Could reduce polling thereby reducing system CPU
 Detriment: Could make remote client wait longer for a lock
 Tuning suggestions:
20

There are better ways to reduce polling.

Leave it alone

Set it to 1 (default is 2)
© 2014 Progress Software Corporation. All rights reserved.
FOR EACH customer NO-LOCK:
….
end.
-prefetchPriority (OE 10.2B06 & OE 11.1)
TCP I/O
Server
-Mm 8192
Remote
Client
 Defers check (poll) for requests from other remote clients
while network buffer is populated with multiple records
 Reduces System CPU costs
 Tuning suggestions:
21

Set to 100 (worked best in my tests)

Some field testing suggests 50 is best

Watch out for slower response to non-prefetch queries
© 2014 Progress Software Corporation. All rights reserved.
FOR EACH customer NO-LOCK:
….
end.
-prefetchDelay (OE 10.2B06 & OE 11.1)
TCP I/O
Server
-Mm 8192
Remote
Client
 Puts multiple records in first message when set.

If not set, first response message only contains 1 record
 Benefits:

Can improve browse widget window population

Can reduce TCP I/O for a single query by 1
 Tuning suggestions:
22

In theory, enabling this should improve performance

I have seen no difference in my testing
© 2014 Progress Software Corporation. All rights reserved.
FOR EACH customer NO-LOCK:
….
end.

Avg record size = 200 bytes

~40 records per msg
maximum (-Mm 8192)
-prefetchNumRecs and –prefetchFactor (OE 10.2B06 & OE 11.1)
TCP I/O
Server
-Mm 8192
Remote
Client
FOR EACH customer NO-LOCK:
….
end.
Record size and –Mm matter!

 Determines how many records are “stuffed” in a message

Number of records vs percentage full
 Reduces network traffic and improves TCP/IP I/O efficiency
 Tuning suggestions:
23

-prefetchNumRecs 100 records

Reduce if remote clients complain of “choppy” behavior

Default is 16 records
© 2014 Progress Software Corporation. All rights reserved.

•
Avg record size = 200 bytes
•
~40 records per msg
maximum
Too small –Mm negates affect
Enhancements to Database Buffering
System Memory

Memory access much faster than
disk access

Reduce read and write I/O via caching
Process Shared Memory
Database
Buffer
Pool
Bi
Buffers
Ai
Buffers

File system cache
I/O
Multi level caches
.d.d .d.d
.d .d
24
.d.b
© 2014 Progress Software Corporation. All rights reserved.
Multi level caches
.d.a
•
Memory is finite
•
Working set concept
Managing the buffer pool
•
Primary buffer pool
•
Alternate buffer pool
•
Private Buffers
•
Replacement mechanisms
The Database Buffer Pool
LRU
MRU
Database
Buffer
Lookup
25
Buffer pool hash table
64
128
96
1024
Primary Buffer Pool
-B buffers

Database block lookup via single hash table

Replacement policy via LRU mechanism
•
LRU vs MRU end of replacement chain
•
Manages “working set” well
•
Easily “fouled”
•
High housekeeping cost
© 2014 Progress Software Corporation. All rights reserved.
144
256
LRU buffer eviction policy
Reducing “Housekeeping” Costs (OE 10.2B06 and OE 11.1)
LRU
MRU
Buffer pool hash table
64
Database
Buffer
Lookup

96
1024
144
256
LRU buffer eviction policy
Primary Buffer Pool
-B buffers
-lruskips <n> (-lru2skips for alternate buffer pool) (OE 10.2B06 and OE 11.1)
•
•
•
Skip LRU maintenance for <n> accesses
LRU and LFU (least frequently used) combined
Small numbers make a BIG difference (100 works well)
Promon, R&D
4. Administrative Functions ...
4. Adjust Latch Options
4. Adjust LRU force skips: 100
26
128
© 2014 Progress Software Corporation. All rights reserved.
FIND _Startup.
ASSIGN _Startup-LRU-Skips = 100.
Alternate Buffer Pool (OE 10.2B)
MRU
LRU
64
96
1024
144
256
Primary Buffer Pool
-B buffers
Buffer pool hash table
Database
Buffer
Lookup
128
 1 buffer pool cache
 1 Hash table
 Multiple LRU
replacement chains
Alternate Buffer Pool
-B2 buffers
LRU
92
64
164
48
132
LRU buffer eviction policy
128
MRU
LRU2 buffer eviction policy
(only when needed)
 Object specific data managed separately  Data Dictionary (by table/index/LOB)
27
 Reduces “housekeeping” cost
 proutil enableB2 (by storage area)
 Data can become resident in memory
 proutil viewB2 option
© 2014 Progress Software Corporation. All rights reserved.
Private (per user) Read-only Buffers (little known/used category)
Database
Buffer
Lookup
64
Buffer pool hash table
LRU
128
96
1024
144
256
LRU buffer eviction policy
MRU
LRU
Primary Buffer Pool
-B buffers
104
128
40
200
40
160
MRU
LRU
96
80
48
-Bp (per user) eviction policies
Alternate Buffer Pool
-B2 buffers
LRU
92
64
164
48
132
128
 Selfless act for table scan users
• Will not improve performance of user
• Helps others since it avoids fouling of LRU mechanism
• Use it for operations like dbanalys or table scan queries
 Intended to improve performance overall
28
MRU
© 2014 Progress Software Corporation. All rights reserved.
MRU
LRU2 buffer eviction policy
(only when needed)
Private (per user) Read-only Buffers (little known/used category)
Database
Buffer
Lookup
64
Buffer pool hash table
LRU
128
96
1024
144
256
MRU
LRU buffer eviction policy
MRU
LRU
Primary Buffer Pool
-B buffers
104
128
40
200
40
160
MRU
LRU
96
80
-Bp (per user) eviction policies
Alternate Buffer Pool
-B2 buffers
LRU
92
64
164
48
132
128
MRU
 Values
LRU2 buffer eviction policy
(only when needed)
• Default: 0; Max 64 per client (cumulative total limited to 25% of –B)
• Change per client maximum with -Bpmax at db startup
• Set # buffers via -Bp at client startup
– Can be changed at runtime via _MyConnection._Myconn-NumSeqBuffers
29
48
© 2014 Progress Software Corporation. All rights reserved.
Some Tuning Suggestions
 -lruskips (OE 10.2B06 & OE 11.1)
• 100 seems to work well
• Only helps if LRU latch contention
 -B2 (OE 10.2B)
• Set large enough to hold very active “small” tables
• Include indexes as well as the table
 -Bp (V 9.0A)
• Set to # tables in query + depth of each index used
– 2 way join query: 8 to 10 will work well
• Use for table scan type queries
– Application as well as utilities (dbanalys)
 -B
• Tune to acceptable read I/O rates, not buffer pool hit ratio
30
© 2014 Progress Software Corporation. All rights reserved.
Auditing (OE 10.1A)
 Policy based (flexible)
• Change capture internal to database
• Audit logs highly protected
• Create, update and delete change capture
– (no read capture provided)
• Application events
• Archive for reporting
 Reclaim Audit Space (OE 11.2)
<db>-C-Cauditreconfig
auditreconfig
[ tablearea
<name>
] [ indexarea
• proutil
proutil <db>
[ tablearea
<name>
] [ indexarea
<name> ]<name>
– Re-creates audit tables and indexes in new area
– Drops old audit tables and indexes
– Existing data is truncated
• Carefully use prostrct truncate/remove to reclaim area’s disk space
31
© 2014 Progress Software Corporation. All rights reserved.
OpenEdge
Replication
32
© 2014 Progress Software Corporation. All rights reserved.
Maintain a “hot” standby with OpenEdge Replication (V9.?)
33
© 2014 Progress Software Corporation. All rights reserved.
OpenEdge Replication Enhancements
 Increase max –pica (OE 11.2)
• Database Service Communication Area Size (-pica)
• Maximum value of increased from 512 to 1,000,000
• Avoid database “slowdown” when target not keeping up
 JTA & Replication (OE 11.2)
• Allow JTA distributed transactions and OpenEdge Replication
34
© 2014 Progress Software Corporation. All rights reserved.
OpenEdge Replication Enhancements
 Table move/index move (OE 11.3)
• Now propagated to target
 -asc <n>: asynchronous level (relatively unknown category)
• Default is 10, Max is 500
• Disabled with setting of 501
• Server tells agent # blocks to be sent before ACK
• Increasing can greatly improve performance
• Set in pmmgr.properties file replserv option
[replserv]
arguments=-logging 2 –asc 501
35
© 2014 Progress Software Corporation. All rights reserved.
Relatively Unknown
or
Forgotten Features
36
© 2014 Progress Software Corporation. All rights reserved.
Misc Parameters
 -keeptargetlfe (OE 10.2B04)
•
prorest <target-db> <source-bak> [ -keeptargetlfe ]
• Keep target large file enabled (lfe)
• Restores a backup without enabling large files
• By default: Target = Source on restore
37
© 2014 Progress Software Corporation. All rights reserved.
Client Database-Request Statement Caching (OE 10.1C)
 What is it?
• Client execution stack trace dump
• Includes: Line #, procedure name, file name
 When should you use it?
• Diagnosing deployed application problems
• Local and remote access
 What’s in a name?
• Don’t confuse with other “statement caches”
 Documentation
• OpenEdge Data Management: Database Administration
38
© 2014 Progress Software Corporation. All rights reserved.
Enablement – Multi-level activation
promon  R&D 
1. Status Displays ...
18. Client Database-Request Statement Cache ...
Activate
1. Activate For Selected Users
2. Activate For All Users
3. Activate For All Future Users
4. Deactivate For Selected Users
5. Deactivate For All Users
6. Deactivate For All Future Users
View
Location
39
7. View Database-Request Statement Cache
8. Specify Directory for Statement Cache Files
© 2014 Progress Software Corporation. All rights reserved.
Procedure Call Stack
It’s just a LIFO…
 Top is last procedure executed
 One time full stack
 Bottom is first procedure executed
 Continuous full stack
 Top down, newest to oldest
 Continuous current location
Top
Newest
Oldest
#
Procedure Name
19 : reallyLongNamedInternalProcedure3
12 : reallyLongNamedInternalProcedure2
5 : reallyLongNamedInternalProcedure1
445 : reallyLongNamedInternalProcedure0
1 : /usr1/stmtest/p72340_Untitled1.ped
Bottom
40
© 2014 Progress Software Corporation. All rights reserved.
File Name
proctestb.r
proctestb.r
proctesta.r
proctesta.r
Manual Stack Generation
 Stack also available via “prostack” or “progetstack”
• Useful for “non-responsive” connections
• Available with 10.1c
• Must have access to client’s machine
 kill –SIGUSR1 <pid> (Don’t forget the dash)
• protrace.<pid>
– Startup parameters
– Execution stack
– ** ABL Stack Trace ** (OE 10.2B)
– ** Persistent procedures/Classes **
– ** PROPATH **
– ** Databases (logical/type/physical) **
41
© 2014 Progress Software Corporation. All rights reserved.
Mapping
Get _StorageObject record
Schema
42
© 2014 Progress Software Corporation. All rights reserved.
Table D
Cust Tbl
Index D-2
Index D-1
SRep Idx
Cust# Idx
Name Idx
Index B-1
Index A-1
Table B
Logical
Table A
Object Mapping Cache - OM Latch: OM Lookup and LRU
Mapping
Hash Table
No latching, no paging
-omsize
Primary Cache
Zero contention!
Get _StorageObject record
OM cache loaded at startup
Schema
43
© 2014 Progress Software Corporation. All rights reserved.
Table D
Cust Tbl
Index D-2
Index D-1
SRep Idx
Cust# Idx
Name Idx
Index B-1
Index A-1
Logical
Table B
Table A
Object Mapping Cache - OM Latch: OM Lookup and LRU
Table D
Cust Tbl
Index D-2
Index D-1
SRep Idx
Cust# Idx
Name Idx
Index B-1
Index A-1
Logical
Table B
Table A
Object Mapping Cache - OM Latch: OM Lookup and LRU
Mapping
Hash Table
No latching, no paging
Hash Table
-omsize
Primary Cache
Zero contention!
Secondary Cache
Little contention
2nd cache for over flow & new objects
Schema
© 2014 Progress Software Corporation. All rights reserved.
OM latch needed for
paging maintenance
Get _StorageObject record
OM cache loaded at startup
44
OM
How to manage Object Mapping Cache
 Do I have a problem?
define variable prev-latches as integer.
• Check latch statistics
repeat:
find _latch where _latch-name = "MTL_OM".
display _Latch-Name
_Latch-Lock /* # times latch acquired */
Activity
Contention
_Latch-Wait /* # time conflict occurred */
_Latch-Lock - prev-latches label "latch/sec".
prev-latches = _Latch-Lock.
pause 1.
end.
45
© 2014 Progress Software Corporation. All rights reserved.
How to manage Object Mapping Cache
 Do I have a problem?
• Check latch statistics
 Identify proper value
select count(*) from _storageObject
 Set it properly on startup to avoid eviction & latch contention
•proserv <db> -omsize <n> …
 Memory used: ~192 bytes per entry
 Default 1024 = ~384K
 This is shared memory
• 1 primary and 1 secondary cache per database
46
© 2014 Progress Software Corporation. All rights reserved.
(V9.0a !)
Altering Performance Related Parameters Online
Paramater Name
recspacesearchdepth
lru2Enabled
lruskips
lru2skips
spin
nGovernor
LGovernor
pwqdwlay
pwsdelay
pwscan
pwwmax
client trace level
client trace request
enablelargekeys
Nmsgwait
prefetchFactor
prefetchNumRecs
prefetchPriority
prefetchDelay
Bp (Private Buffers)
TableBase
IndexBase
47
promon
Adjust Latch Options
Adjust Latch Options
Adjust Latch Options
Adjust Latch Options
Adjust Latch Options
Adjust Governor options
Adjust Governor options
Adjust Page Writer Options
Adjust Page Writer Options
Adjust Page Writer Options
Adjust Page Writer Options
Client DB-Request Statement Cache
Client DB-Request Statement Cache
Server Options
Server Options
Server Options
Server Options
Server Options
© 2014 Progress Software Corporation. All rights reserved.
VST
_ActBuffer. _Buffer-LRUEnabled
_startup._Startup-LRU-Skips
_startup._Startup-LRU2-Skips
_startup._Startup-Spin
_startup._Startup-nGovernor
_startup._Startup-Lgovernor
_startup._Startup-APWQTime
_startup._Startup-APWSTime
_startup_Startup-APWBuffs
_startup._Startup-APWMaxWrites
_connect._Connect-CachingType
_Database-Feature
_startup._Startup-NmsgWait
_startup._Startup-Prefetch-Factor
_startup._Startup-Prefetch-Num-Recs
_startup._Startup-Prefetch-Priority
_startup._Startup-Prefetch-Delay
_myConnect._MyConn-NumSeqBuffers
_statbase._TableBase
_statbase._IndexBase
Increase Resource Startup Parameters Online (OE 10.1C)
proutil <dbname> -C increaseto <- param> <value>
 Parameter list
• -aibuf, -bibufs
 Increase, not decrease
 New segment restrictions
• -B, -B2
• Kernel restrictions apply
• -L
• Security restrictions
• -omsize
• -mtpmsize (OE 11.0)
• -Mxs
– Servers: automatically attach
quickly
– Self serve: attach w/db action
over time
• Minimum segment size created:
128 MB
48
© 2014 Progress Software Corporation. All rights reserved.
OpenEdge Database Enhancement Summary
 Major Enhancements
 Little known or forgotten
• Transparent Data Encryption
• Private buffers
• Multi-tenancy
• Om cache (-omsize)
• Changing parameters online
 Other Enhancements
• Runtime tuning
• Utility Performance
• Application insights
• Auditing
50
© 2014 Progress Software Corporation. All rights reserved.