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Temporary commit of 10.0-merge

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This commit is contained in:
Michael Widenius 2013-03-26 00:03:13 +02:00
commit 068c61978e
649 changed files with 90817 additions and 25330 deletions
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4
storage/maria/ma_commit.c
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@ -39,11 +39,11 @@ int ma_commit(TRN *trn)
/*
- if COMMIT record is written before trnman_commit_trn():
if Checkpoint comes in the middle it will see trn is not committed,
then if crash, Recovery might roll back trn (if min(rec_lsn) is after
then if crash, Recovery might roll back trn (if MY_MIN(rec_lsn) is after
COMMIT record) and this is not an issue as
* transaction's updates were not made visible to other transactions
* "commit ok" was not sent to client
Alternatively, Recovery might commit trn (if min(rec_lsn) is before COMMIT
Alternatively, Recovery might commit trn (if MY_MIN(rec_lsn) is before COMMIT
record), which is ok too. All in all it means that "trn committed" is not
100% equal to "COMMIT record written".
- if COMMIT record is written after trnman_commit_trn():