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Use specific error if master is down and slave-serve-stale-data is set to no.

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We used to reply -ERR ... message ..., now the reply is
instead -MASTERDOWN ... message ... so that it can be distinguished
easily by the other error conditions.
This commit is contained in:
antirez 2012-05-02 17:14:45 +02:00
parent 92997d06ea
commit ae62d29d1d
2 changed files with 5 additions and 3 deletions
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5
src/redis.c
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@ -986,6 +986,8 @@ void createSharedObjects(void) {
"-LOADING Redis is loading the dataset in memory\r\n")); "-LOADING Redis is loading the dataset in memory\r\n"));
shared.slowscripterr = createObject(REDIS_STRING,sdsnew( shared.slowscripterr = createObject(REDIS_STRING,sdsnew(
"-BUSY Redis is busy running a script. You can only call SCRIPT KILL or SHUTDOWN NOSAVE.\r\n")); "-BUSY Redis is busy running a script. You can only call SCRIPT KILL or SHUTDOWN NOSAVE.\r\n"));
shared.masterdownerr = createObject(REDIS_STRING,sdsnew(
"-MASTERDOWN Link with MASTER is down and slave-serve-stale-data is set to 'no'.\r\n"));
shared.bgsaveerr = createObject(REDIS_STRING,sdsnew( shared.bgsaveerr = createObject(REDIS_STRING,sdsnew(
"-MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.\r\n")); "-MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.\r\n"));
shared.roslaveerr = createObject(REDIS_STRING,sdsnew( shared.roslaveerr = createObject(REDIS_STRING,sdsnew(
@ -1583,8 +1585,7 @@ int processCommand(redisClient *c) {
server.repl_serve_stale_data == 0 && server.repl_serve_stale_data == 0 &&
c->cmd->proc != infoCommand && c->cmd->proc != slaveofCommand) c->cmd->proc != infoCommand && c->cmd->proc != slaveofCommand)
{ {
addReplyError(c, addReply(c, shared.masterdownerr);
"link with MASTER is down and slave-serve-stale-data is set to no");
return REDIS_OK; return REDIS_OK;
} }

3
src/redis.h
View File

@ -366,7 +366,8 @@ struct sharedObjectsStruct {
*colon, *nullbulk, *nullmultibulk, *queued, *colon, *nullbulk, *nullmultibulk, *queued,
*emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr, *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
*outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *bgsaveerr, *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *bgsaveerr,
*roslaveerr, *oomerr, *plus, *messagebulk, *pmessagebulk, *subscribebulk, *masterdownerr, *roslaveerr,
*oomerr, *plus, *messagebulk, *pmessagebulk, *subscribebulk,
*unsubscribebulk, *psubscribebulk, *punsubscribebulk, *del, *rpop, *lpop, *unsubscribebulk, *psubscribebulk, *punsubscribebulk, *del, *rpop, *lpop,
*select[REDIS_SHARED_SELECT_CMDS], *select[REDIS_SHARED_SELECT_CMDS],
*integers[REDIS_SHARED_INTEGERS], *integers[REDIS_SHARED_INTEGERS],