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Refuse writes if can't persist on disk.

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Redis now refuses accepting write queries if RDB persistence is
configured, but RDB snapshots can't be generated for some reason.
The status of the latest background save operation is now exposed
in the INFO output as well. This fixes issue #90.
This commit is contained in:
antirez
2012-03-07 13:05:46 +01:00
parent e31b615e62
commit c25e7eafef
3 changed files with 22 additions and 4 deletions
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4
src/rdb.c
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@ -656,6 +656,7 @@ int rdbSave(char *filename) {
redisLog(REDIS_NOTICE,"DB saved on disk");
server.dirty = 0;
server.lastsave = time(NULL);
server.lastbgsave_status = REDIS_OK;
return REDIS_OK;
werr:
@ -1061,12 +1062,15 @@ void backgroundSaveDoneHandler(int exitcode, int bysignal) {
"Background saving terminated with success");
server.dirty = server.dirty - server.dirty_before_bgsave;
server.lastsave = time(NULL);
server.lastbgsave_status = REDIS_OK;
} else if (!bysignal && exitcode != 0) {
redisLog(REDIS_WARNING, "Background saving error");
server.lastbgsave_status = REDIS_ERR;
} else {
redisLog(REDIS_WARNING,
"Background saving terminated by signal %d", bysignal);
rdbRemoveTempFile(server.rdb_child_pid);
server.lastbgsave_status = REDIS_ERR;
}
server.rdb_child_pid = -1;
/* Possibly there are slaves waiting for a BGSAVE in order to be served