Professional tools for Firebird optimization and maintenance

from IBSurgeon

Alexey Kovyazinwww.IBSurgeon.com

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• Tools and consulting• Platinum Sponsor of Firebird Project• Founded in 2002: 12 years of

Firebird and InterBase recoveries and consulting

• Based in Moscow, Russia• Firebase is our Brazil partner (since

2006)

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Backups

Health monitoring

Indices maintenance

Transactions dynamics

SQL Queries & plans

Database structure analysys

Database

Typical tasks

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FBDataGuard

IBTM

FBScanner & FBPerfMon

IBAnalyst

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Backups● GBAK or NBACKUP?

● NBACKUP problems● GBAK problems

● How to combine advantages and avoid problems

Backups

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Big databases backup schema

Production server Backup server

FBDataGuard 1:-delta monitoring

-health monitoring

FBDataGuard 2- gbak backup & test restore

Nbackup gbak

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Health monitoring

• Critical metadata check and backup– Needed for recovery with FirstAID

• Database limitations checks– Transactions limits, format limits, space limits

• Errors– Firebird.log

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Indices maintenance

• Indices health– Idea of statistics – Recalculation of indices statistics

• Manual• Automatic

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Transactions monitoring 2

• Transaction markers (NEXT, OIT, OST, OAT) dynamics is good indicator of problems– Long running active transactions (stuck OAT)– Forced Rollback (stuck OIT)– Sweep and autosweep success

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SQL Queries and Plans

• For all Firebird versions — FBScanner– Works as a proxy– Connection string changes required– Can be installed on remote server

• For Firebird 2.5 — FBPerfMon– Mon$ support– TraceAPI support

12Recommended setup for logging

Firebird Production server

Users

FBScanner remote server

Administrator has:1) FBScanner Analyzer2) MON$Logger3) TraceAPI4) IBTM5) IBAnalyst

MON$

TraceAPI

FBDataGuard& Trace API

13MON$

14Trace

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FBScanner Log

16Database structure

17Examples of problem resolution

1.Long running active transaction — prevent performance problem1.Administrator got email from FBDataGuard about

transaction gap2.IBTM shows long running active transaction3.MON$ logger identified source of transaction, and

admin disconnected client

18Examples of problem resolution

1.Bad performance — fix performance problem– User reported problem with performance in application A– Quick check with MON$logger does not show the

problem– Admin analysed logs from FBScanner (permanent

monitoring) and found bad query, reported to developer, with SQL plan and fresh gstat statistics from FBDataGuard

– Developer checked gstat and plan, found that new index is needed

– After testing index on test machine developer passed new index to admin

– Admin applied index, performance is good again

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Conclusion

• To sleep well and live long you need:– Relialble backups– Continious monitoring and alerts– Quick identification of problem– Full details how to fix it

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Only at FDD 2014

IBSurgeon Optimization Pack 5-in-1 (FBDataGuard+FBScanner+FBPerfMon +IBTM +IBAnalyst)

• EUR 299 R$400 per server• EUR 1290 R$850 Unlimited Subscription 1 year

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• Thank you!• Questions?

Web: www.ib-aid.com www.ibsurgeon.comEmail: support@ib-aid.com