In redisFork(), we don't set child pid, so updateDictResizePolicy()
doesn't take effect, that isn't friendly for copy-on-write.
The bug was introduced this in redis 6.0: e70fbad
The reason that we want to get a full crash report on SIGABRT
is that the jmalloc, when detecting a corruption, calls abort().
This will cause the Redis to exist silently without any report
and without any way to analyze what happened.
The tests sometimes fail to find a log message.
Recently i added a print that shows the log files that are searched
and it shows that the message was in deed there.
The only reason i can't think of for this seach to fail, is we we
happened to read an incomplete line, which didn't match our pattern and
then on the next iteration we would continue reading from the line after
it.
The fix is to always re-evaluation the previous line.
(cherry picked from commit 35eb8ec6f3f6a2deab49ff70b0e9a8587adfd6de)
This wrong behavior was backed by a test, and also documentation, and dates back to 2010.
But it makes no sense to anyone involved so it was decided to change that.
Note that 3b031b1 (invalidate watch on expire on access) was released in 6.0 RC2
and 62a3ec8 released in in 6.0.0 GA (invalidate watch when key is evicted).
both of which do similar changes.
(cherry picked from commit 44bcbed2eed8577e7634e04817c4a75f9b722a62)
This cleans up and simplifies the API by passing the command name as the
first argument. Previously the command name was specified explicitly,
but was still included in the argv.
(cherry picked from commit a94ddb27fe919d60c598c2403b230b27c6e3a11c)
* Introduce a new API's: RM_GetContextFlagsAll, and
RM_GetKeyspaceNotificationFlagsAll that will return the
full flags mask of each feature. The module writer can
check base on this value if the Flags he needs are
supported or not.
* For each flag, introduce a new value on redismodule.h,
this value represents the LAST value and should be there
as a reminder to update it when a new value is added,
also it will be used in the code to calculate the full
flags mask (assuming flags are incrementally increasing).
In addition, stated that the module writer should not use
the LAST flag directly and he should use the GetFlagAll API's.
* Introduce a new API: RM_IsSubEventSupported, that returns for a given
event and subevent, whether or not the subevent supported.
* Introduce a new macro RMAPI_FUNC_SUPPORTED(func) that returns whether
or not a function API is supported by comparing it to NULL.
* Introduce a new API: int RM_GetServerVersion();, that will return the
current Redis version in the format 0x00MMmmpp; e.g. 0x00060008;
* Changed unstable version from 999.999.999 to 255.255.255
Co-authored-by: Oran Agra <oran@redislabs.com>
Co-authored-by: Yossi Gottlieb <yossigo@gmail.com>
(cherry picked from commit e9c837ad3118f5ea2cb4defb0ab82cbd113733e7)
This API function makes it possible to retrieve the X.509 certificate
used by clients to authenticate TLS connections.
(cherry picked from commit 929f1e2ec73c147251d693631a746baaaf5d4127)
The main motivation here is to provide a way for modules to create a
single, global context that can be used for logging.
Currently, it is possible to obtain a thread-safe context that is not
attached to any blocked client by using `RM_GetThreadSafeContext`.
However, the attached context is not linked to the module identity so
log messages produced are not tagged with the module name.
Ideally we'd fix this in `RM_GetThreadSafeContext` itself but as it
doesn't accept the current context as an argument there's no way to do
that in a backwards compatible manner.
(cherry picked from commit e270302cdf06b6a7b38c7dcb59680419b1b589c8)
This is essentially the same as calling COMMAND GETKEYS but provides a
more efficient interface that can be used in every context (i.e. not a
Redis command).
(cherry picked from commit 9e58b52a19fed12c4e9fbe120ec0d4baf9c2bc28)
I suppose that it was overlooked, since till recently none of the blocked commands were readonly.
other changes:
- add test for the above.
- add better support for additional (and deferring) clients for
cluster tests
- improve a test which left the client in MULTI state.
(cherry picked from commit ba61700db24628451212c5875e0ca7e5d83ea743)
track and report memory used by clients argv.
this is very usaful in case clients started sending a command and didn't
complete it. in which case the first args of the command are already
trimmed from the query buffer.
in an effort to avoid cache misses and overheads while keeping track of
these, i avoid calling sdsZmallocSize and instead use the sdslen /
bulk-len which can at least give some insight into the problem.
This memory is now added to the total clients memory usage, as well as
the client list.
(cherry picked from commit 7481e513f0507d01381a87046d8d1366c718f94e)
PROBLEM:
[$rd1 read] reads invalidation messages one by one, so it's never going to see the second invalidation message produced after INCR b, whether or not it exists. Adding another read will block incase no invalidation message is produced.
FIX:
We switch the order of "INCR a" and "INCR b" - now "INCR b" comes first. We still only read the first invalidation message produces. If an invalidation message is wrongly produces for b - then it will be produced before that of a, since "INCR b" comes before "INCR a".
Co-authored-by: Nitai Caro <caronita@amazon.com>
(cherry picked from commit 94e9b0124e8582912c3771f9828842348490bc38)
Before this commit, we would have continued to add replies to the reply buffer even if client
output buffer limit is reached, so the used memory would keep increasing over the configured limit.
What's more, we shouldn’t write any reply to the client if it is set 'CLIENT_CLOSE_ASAP' flag
because that doesn't conform to its definition and we will close all clients flagged with
'CLIENT_CLOSE_ASAP' in ‘beforeSleep’.
Because of code execution order, before this, we may firstly write to part of the replies to
the socket before disconnecting it, but in fact, we may can’t send the full replies to clients
since OS socket buffer is limited. But this unexpected behavior makes some commands work well,
for instance ACL DELUSER, if the client deletes the current user, we need to send reply to client
and close the connection, but before, we close the client firstly and write the reply to reply
buffer. secondly, we shouldn't do this despite the fact it works well in most cases.
We add a flag 'CLIENT_CLOSE_AFTER_COMMAND' to mark clients, this flag means we will close the
client after executing commands and send all entire replies, so that we can write replies to
reply buffer during executing commands, send replies to clients, and close them later.
We also fix some implicit problems. If client output buffer limit is enforced in 'multi/exec',
all commands will be executed completely in redis and clients will not read any reply instead of
partial replies. Even more, if the client executes 'ACL deluser' the using user in 'multi/exec',
it will not read the replies after 'ACL deluser' just like before executing 'client kill' itself
in 'multi/exec'.
We added some tests for output buffer limit breach during multi-exec and using a pipeline of
many small commands rather than one with big response.
Co-authored-by: Oran Agra <oran@redislabs.com>
(cherry picked from commit 3085577c095a0f3b1261f6dbf016d7701aadab46)
We're already using bg_unlink in several places to delete the rdb file in the background,
and avoid paying the cost of the deletion from our main thread.
This commit uses bg_unlink to remove the temporary rdb file in the background too.
However, in case we delete that rdb file just before exiting, we don't actually wait for the
background thread or the main thread to delete it, and just let the OS clean up after us.
i.e. we open the file, unlink it and exit with the fd still open.
Furthermore, rdbRemoveTempFile can be called from a thread and was using snprintf which is
not async-signal-safe, we now use ll2string instead.
(cherry picked from commit 6638f6129553d0f19c60944e70fe619a4217658c)
Before this commit, following command did not show --tls option:
./runtest-cluster --help
./runtest-sentinel --help
(cherry picked from commit e4a1280a0e6c33d03ec6b622b8159b2b26f0f9c3)
This test was nearly always failing on MacOS github actions.
This is because of bugs in the test that caused it to nearly always run
all 3 attempts and just look at the last one as the pass/fail creteria.
i.e. the test was nearly always running all 3 attempts and still sometimes
succeed. this is because the break condition was different than the test
completion condition.
The reason the test succeeded is because the break condition tested the
results of all 3 tests (PSETEX/PEXPIRE/PEXPIREAT), but the success check
at the end was only testing the result of PSETEX.
The reason the PEXPIREAT test nearly always failed is because it was
getting the current time wrong: getting the current second and loosing
the sub-section time, so the only chance for it to succeed is if it run
right when a certain second started.
Because i now get the time from redis, adding another round trip, i
added another 100ms to the PEXPIRE test to make it less fragile, and
also added many more attempts.
Adding many more attempts before failure to account for slow platforms,
github actions and valgrind
(cherry picked from commit 1fd56bb75a9afa5469b3ecb70d394b2adaf9baac)
The tests sometimes fail to find a log message.
Recently i added a print that shows the log files that are searched
and it shows that the message was in deed there.
The only reason i can't think of for this seach to fail, is we we
happened to read an incomplete line, which didn't match our pattern and
then on the next iteration we would continue reading from the line after
it.
The fix is to always re-evaluation the previous line.
- add test suite coverage for redis-benchmark
- add --version (similar to what redis-cli has)
- fix bug sending more requests than intended when pipeline > 1.
- when done sending requests, avoid freeing client in the write handler, in theory before
responses are received (probably dead code since the read handler will call clientDone first)
Co-authored-by: Oran Agra <oran@redislabs.com>
This wrong behavior was backed by a test, and also documentation, and dates back to 2010.
But it makes no sense to anyone involved so it was decided to change that.
Note that 3b031b1 (invalidate watch on expire on access) was released in 6.0 RC2
and 62a3ec8 released in in 6.0.0 GA (invalidate watch when key is evicted).
both of which do similar changes.
introduces a NOMKSTREAM option for xadd command, this would be useful for some
use cases when we do not want to create new stream by default:
XADD key [MAXLEN [~|=] <count>] [NOMKSTREAM] <ID or *> [field value] [field value]
This cleans up and simplifies the API by passing the command name as the
first argument. Previously the command name was specified explicitly,
but was still included in the argv.
* Introduce a new API's: RM_GetContextFlagsAll, and
RM_GetKeyspaceNotificationFlagsAll that will return the
full flags mask of each feature. The module writer can
check base on this value if the Flags he needs are
supported or not.
* For each flag, introduce a new value on redismodule.h,
this value represents the LAST value and should be there
as a reminder to update it when a new value is added,
also it will be used in the code to calculate the full
flags mask (assuming flags are incrementally increasing).
In addition, stated that the module writer should not use
the LAST flag directly and he should use the GetFlagAll API's.
* Introduce a new API: RM_IsSubEventSupported, that returns for a given
event and subevent, whether or not the subevent supported.
* Introduce a new macro RMAPI_FUNC_SUPPORTED(func) that returns whether
or not a function API is supported by comparing it to NULL.
* Introduce a new API: int RM_GetServerVersion();, that will return the
current Redis version in the format 0x00MMmmpp; e.g. 0x00060008;
* Changed unstable version from 999.999.999 to 255.255.255
Co-authored-by: Oran Agra <oran@redislabs.com>
Co-authored-by: Yossi Gottlieb <yossigo@gmail.com>
The main motivation here is to provide a way for modules to create a
single, global context that can be used for logging.
Currently, it is possible to obtain a thread-safe context that is not
attached to any blocked client by using `RM_GetThreadSafeContext`.
However, the attached context is not linked to the module identity so
log messages produced are not tagged with the module name.
Ideally we'd fix this in `RM_GetThreadSafeContext` itself but as it
doesn't accept the current context as an argument there's no way to do
that in a backwards compatible manner.
This is essentially the same as calling COMMAND GETKEYS but provides a
more efficient interface that can be used in every context (i.e. not a
Redis command).
Adding [B]LMOVE <src> <dst> RIGHT|LEFT RIGHT|LEFT. deprecating [B]RPOPLPUSH.
Note that when receiving a BRPOPLPUSH we'll still propagate an RPOPLPUSH,
but on BLMOVE RIGHT LEFT we'll propagate an LMOVE
improvement to existing tests
- Replace "after 1000" with "wait_for_condition" when wait for
clients to block/unblock.
- Add a pre-existing element to target list on basic tests so
that we can check if the new element was added to the correct
side of the list.
- check command stats on the replica to make sure the right
command was replicated
Co-authored-by: Oran Agra <oran@redislabs.com>
