Details
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Type:
Bug
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Status: Resolved
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Priority:
Major - P3
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: WT2.8.0
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Labels:None
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# Replies:18
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Last comment by Customer:true
Description
There appears to be a bug in log_scan where if we find a partially written log record, we skip it, but advance to the next log file. I believe we should be considering that the end of the log.
Issue Links
- is depended on by
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SERVER-22388
WiredTiger changes for MongoDB 3.3.2
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- Closed
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SERVER-22570
WiredTiger changes for MongoDB 3.2.4
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- Closed
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Activity
Author:
{u'username': u'sueloverso', u'name': u'Susan LoVerso', u'email': u'sue@mongodb.com'}Message: WT-2356 Fix warnings
Branch: mongodb-3.2
https://github.com/wiredtiger/wiredtiger/commit/7eb48119473b97bd2b68a5755094ec7045b9e56f
Author:
{u'username': u'sueloverso', u'name': u'Susan LoVerso', u'email': u'sue@mongodb.com'}Message: WT-2356 Check for partial record at end of log file.
Branch: mongodb-3.2
https://github.com/wiredtiger/wiredtiger/commit/aae5392f6cdd89357f7e5e68e2a0ae877d2cf09f
Author:
{u'username': u'michaelcahill', u'name': u'Michael Cahill', u'email': u'michael.cahill@mongodb.com'}Message: WT-2356 Put recovery tests in a single directory.
Branch: mongodb-3.2
https://github.com/wiredtiger/wiredtiger/commit/a0642fe126075cd85ba921c996f1e5746a03670b
Author:
{u'username': u'michaelcahill', u'name': u'Michael Cahill', u'email': u'michael.cahill@mongodb.com'}Message: Merge pull request #2464 from wiredtiger/wt-2356
WT-2356 Fix recovery bug in log_scan advancing.
Branch: mongodb-3.2
https://github.com/wiredtiger/wiredtiger/commit/f3fa88defdb30284928942571463b3e17aaedb39
Author:
{u'name': u'Ramon Fernandez', u'email': u'ramon@mongodb.com'}Message: Import wiredtiger-wiredtiger-2.7.0-650-g5cdd3e3.tar.gz from wiredtiger branch mongodb-3.2
ref: 07966a4..5cdd3e3
SERVER-22437 Coverity analysis defect 77704: Redundant test
SERVER-22438 Coverity analysis defect 77705: Dereference before null check
SERVER-22676 WiredTiger fails to open databases created by 3.0.0 or 3.0.1
WT-2130 Improve on-disk page utlilization with random workloads
WT-2215 WT_LSN needs to support atomic reads and updates
WT-2295 WT_SESSION.create does a full-scan of the main table
WT-2352 Allow build and test without requiring lz4
WT-2356 log scan advances to next log file on partially written record
WT-2363 Remove built in support for bzip2
WT-2368 row-store can pass garbage keys to collator functions
WT-2369 Use C compiler to detect headers instead of C++ compiler
WT-2371 parent split cannot access the page after page-index swap
WT-2372 WiredTiger windows builder fails with C4005 against the "inline" macro
WT-2377 WTPERF doesn't compile in Windows under MSVC
WT-2378 Tasks time out on LSM builder
WT-2397 Cursor traversal from end of the tree skips records.
WT-60 Big endian port
Branch: v3.2
https://github.com/mongodb/mongo/commit/f77630a9e971cae1f921292ea31d9d40a4b096b8
Michael Cahill Let's try to talk about this tonight. There may be two bugs, as I have a test program that demonstrates a problem on two different paths. One is easy to fix. The other may be a reflection of the convoluted way I had to reproduce a bug and may not really be a problem. Either way the effect is that we skip applying a record at the end of the log, but advance to the next log file and apply that record when we should not.