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Wrong index entries order at non-leaf b-tree pages [CORE1299] #1720

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firebird-automations opened this issue Jun 3, 2007 · 11 comments
Closed

Wrong index entries order at non-leaf b-tree pages [CORE1299] #1720

firebird-automations opened this issue Jun 3, 2007 · 11 comments
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@hvlad
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affect-version: 2.0.1 affect-version: 2.1 Initial component: engine fix-version: 2.0.2 fix-version: 2.1 Beta 1 priority: major type: bug

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Submitted by: @hvlad

Relate to CORE1300
Is duplicated by CORE1616

Attachments:
CORE-1299.create_db.sql
CORE-1299.test_db.sql

Sometimes parent page contains nodes pointed at lower level pages in wrong order.
For example parent page nodes order A, B, C, D while at lower level pages linked in order A, C, B, D

This error can be detected by gfix. It reports in firebird.log 6 errors for the same index page for each such case :

Index XXX is corrupt on page YYY level 1\. File: \\Fb2\\fb2\.0\\src\\jrd\\validation\.cpp, line: 1656
Index XXX is corrupt on page YYY level 1\. File: \\Fb2\\fb2\.0\\src\\jrd\\validation\.cpp, line: 1646
Index XXX is corrupt on page YYY level 1\. File: \\Fb2\\fb2\.0\\src\\jrd\\validation\.cpp, line: 1656
Index XXX is corrupt on page YYY level 1\. File: \\Fb2\\fb2\.0\\src\\jrd\\validation\.cpp, line: 1646
Index XXX is corrupt on page YYY level 1\. File: \\Fb2\\fb2\.0\\src\\jrd\\validation\.cpp, line: 1656
Index XXX is corrupt on page YYY level 1\. File: \\Fb2\\fb2\.0\\src\\jrd\\validation\.cpp, line: 1646

(line number as per 2.0 sources)

This error itself can't lead to wrong query results, AFAIK, but i don't know if it can lead to more serious corruptions being present in actively modified index for a long time

Commits: ce54f65 512a33e
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Modified by: @hvlad

Link: This issue relate to CORE1300 [ CORE1300 ]

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Commented by: @hvlad

Edit database file name in both scripts.
Ensure firebird.conf have set GCPolicy = combined (default value)
Start superserver engine
Create test database by CORE1299.create_db.sql
Run CORE1299.test_db.sql and gfix -v -f after it.
If gfix detect no errors - make few more runs of CORE1299.test_db.sql

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Modified by: @hvlad

Attachment: CORE1299.create_db.sql [ 10410 ]

Attachment: CORE1299.test_db.sql [ 10411 ]

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Modified by: @hvlad

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 2.0.2 [ 10130 ] =>

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Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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Modified by: @hvlad

Fix Version: 2.0.2 [ 10130 ]

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Modified by: maziar (maziar)

Link: This issue relate to CORE1616 [ CORE1616 ]

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Modified by: @pcisar

Link: This issue is duplicated by CORE1616 [ CORE1616 ]

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Modified by: @pcisar

Link: This issue relate to CORE1616 [ CORE1616 ] =>

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Modified by: @pcisar

Workflow: jira [ 12272 ] => Firebird [ 15600 ]

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Modified by: @pavel-zotov

QA Status: No test

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affect-version: 2.0.1 affect-version: 2.1 Initial component: engine fix-version: 2.0.2 fix-version: 2.1 Beta 1 priority: major type: bug
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