1. Call emptyDb even in case of diskless-load: We want modules
to get the same FLUSHDB event as disk-based replication.
2. Do not fire any module events when flushing the backups array.
3. Delete redundant call to signalFlushedDb (Called from emptyDb).
Because "keymiss" is "special" compared to the rest of
the notifications (Trying not to break existing apps
using the 'A' format for notifications)
Also updated redis.conf and module.c docs
SELECT, and HELLO are commands that may be executed by the client
as soon as it connects, there's no reason to block them, preventing the
client from doing the rest of his sequence (which might just be INFO or
CONFIG, etc).
MONITOR, DEBUG, SLOWLOG, TIME, LASTSAVE are all non-data accessing
commands, which there's no reason to block.
the warning condition was if usage > limit (saying it'll cause eviction
or oom), but in fact the eviction and oom depends on used minus slave
buffers.
other than fixing the condition, i add info about the current usage and
limit, which may be useful when looking at the log.
althouh in theory, users can do BGREWRITEAOF even if aof is disabled, i
suppose it is more common that the scheduled flag is set by either
startAppendOnly, of a failed initial AOFRW fork (AOF_WAIT_REWRITE)
1. server.repl_no_slaves_since can be set when a MONITOR client disconnects
2. c->repl_ack_time can be set by a newline from a MONITOR client
3. Improved comments
We noticed that the error replies for the generic mechanism for enums
are very verbose for config file parsing, but not for config set
command.
instead of replicating this code, i did a small refactoring to share
code between CONFIG SET and config file parsing.
and also renamed the enum group functions to be consistent with the
naming of other types.
This bug affected RM_StringToLongDouble and HINCRBYFLOAT.
I added tests for both cases.
Main changes:
1. Fixed string2ld to fail if string contains \0 in the middle
2. Use string2ld in getLongDoubleFromObject - No point of
having duplicated code here
The two changes above broke RM_SaveLongDouble/RM_LoadLongDouble
because the long double string was saved with length+1 (An innocent
mistake, but it's actually a bug - The length passed to
RM_SaveLongDouble should not include the last \0).
If a blocked module client times-out (or disconnects, unblocked
by CLIENT command, etc.) we need to call moduleUnblockClient
in order to free memory allocated by the module sub-system
and blocked-client private data
Other changes:
Made blockedonkeys.tcl tests a bit more aggressive in order
to smoke-out potential memory leaks
So error message `ERR only (P)SUBSCRIBE / (P)UNSUBSCRIBE / PING / QUIT allowed in this context` will become
`ERR 'get' command submitted, but only (P)SUBSCRIBE / (P)UNSUBSCRIBE / PING / QUIT allowed in this context`
