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Don't expire keys while loading RDB from AOF preamble.

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The AOF tail of a combined RDB+AOF is based on the premise of applying
the AOF commands to the exact state that there was in the server while
the RDB was persisted. By expiring keys while loading the RDB file, we
change the state, so applying the AOF tail later may change the state.

Test case:

* Time1: SET a 10
* Time2: EXPIREAT a $time5
* Time3: INCR a
* Time4: PERSIT A. Start bgrewiteaof with RDB preamble. The value of a is 11 without expire time.
* Time5: Restart redis from the RDB+AOF: consistency violation.

Thanks to @soloestoy for providing the patch.
Thanks to @trevor211 for the original issue report and the initial fix.

Check issue #4950 for more info.
This commit is contained in:
antirez
2018-05-29 12:37:39 +02:00
parent 2a887bd53f
commit 49147f36e9
3 changed files with 5 additions and 5 deletions
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src/rdb.h
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@ -151,7 +151,7 @@ int rdbSaveBinaryDoubleValue(rio *rdb, double val);
int rdbLoadBinaryDoubleValue(rio *rdb, double *val);
int rdbSaveBinaryFloatValue(rio *rdb, float val);
int rdbLoadBinaryFloatValue(rio *rdb, float *val);
int rdbLoadRio(rio *rdb, rdbSaveInfo *rsi);
int rdbLoadRio(rio *rdb, rdbSaveInfo *rsi, int loading_aof);
rdbSaveInfo *rdbPopulateSaveInfo(rdbSaveInfo *rsi);
#endif