- 05 Apr, 2022 2 commits
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Meir Shpilraien (Spielrein) authored
## Move library meta data to be part of the library payload. Following the discussion on https://github.com/redis/redis/issues/10429 and the intention to add (in the future) library versioning support, we believe that the entire library metadata (like name and engine) should be part of the library payload and not provided by the `FUNCTION LOAD` command. The reasoning behind this is that the programmer who developed the library should be the one who set those values (name, engine, and in the future also version). **It is not the responsibility of the admin who load the library into the database.** The PR moves all the library metadata (engine and function name) to be part of the library payload. The metadata needs to be provided on the first line of the payload using the shebang format (`#!<engine> name=<name>`), example: ```lua #!lua name=test redis.register_function('foo', function() return 1 end) ``` The above script will run on the Lua engine and will create a library called `test`. ## API Changes (compare to 7.0 rc2) * `FUNCTION LOAD` command was change and now it simply gets the library payload and extract the engine and name from the payload. In addition, the command will now return the function name which can later be used on `FUNCTION DELETE` and `FUNCTION LIST`. * The description field was completely removed from`FUNCTION LOAD`, and `FUNCTION LIST` ## Breaking Changes (compare to 7.0 rc2) * Library description was removed (we can re-add it in the future either as part of the shebang line or an additional line). * Loading an AOF file that was generated by either 7.0 rc1 or 7.0 rc2 will fail because the old command syntax is invalid. ## Notes * Loading an RDB file that was generated by rc1 / rc2 **is** supported, Redis will automatically add the shebang to the libraries payloads (we can probably delete that code after 7.0.3 or so since there's no need to keep supporting upgrades from an RC build).
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judeng authored
This macro was recently removed from redismodule.h, so no longer needed.
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- 04 Apr, 2022 1 commit
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Meir Shpilraien (Spielrein) authored
If, for some reason, Redis decides not to execute the script, we need to pop the function and error handler from Lua stack. Otherwise, eventually the Lua stack will explode. Relevant only for 7.0-rc1 and 7.0-rc2.
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- 03 Apr, 2022 1 commit
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Moti Cohen authored
Fix by replacing in test blind sleep with wait_for_condition(). Co-authored-by:
moticless <moticless@github.com>
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- 02 Apr, 2022 1 commit
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Viktor Söderqvist authored
* Fix race condition where node loses its last slot and turns into replica When a node has lost its last slot and finds out from the SETSLOT command before the cluster bus PONG from the new owner arrives. In this case, the node didn't turn itself into a replica of the new slot owner. This commit adds the same logic to the SETSLOT command as already exists for the cluster bus PONG processing. * Revert "Fix new / failing cluster slot migration test (#10482)" This reverts commit 0b21ef8d. In this test, the old slot owner finds out that it has lost its last slot in a nondeterministic way. Either the cluster bus PONG from the new slot owner and sometimes in a SETSLOT command from redis-cli. In both cases, the result should be the same and the old owner should turn itself into a replica of the new slot owner.
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- 31 Mar, 2022 3 commits
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sundb authored
Fix global `strval` not reset to NULL after being freed, causing a crash on alpine (most likely because the dynamic library loader doesn't init globals on reload) By the way, fix the memory leak of using `RedisModule_Free` to free `RedisModuleString`, and add a corresponding test.
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Madelyn Olson authored
During 11-manual-takeover.tcl, if the killing of the instances happens too slowly, one of the replicas might be able to promote itself. I'm not sure why it was slow, but it was observed taking 6 seconds which is enough time to do an election. I was able to verify the error locally by adding a small delay (1 second) during ASAN CI. A fix is just to disable automated failover until all the nodes are confirmed dead.
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Binbin authored
Fix three timing issues in the test
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- 30 Mar, 2022 2 commits
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Binbin authored
Create a utils.tcl in sentinel/tests/includes, and move two procs to it. Allow sentinel test 08-hostname-conf run on its own.
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Nick Chun authored
This feature adds the ability to add four different types (Bool, Numeric, String, Enum) of configurations to a module to be accessed via the redis config file, and the CONFIG command. **Configuration Names**: We impose a restriction that a module configuration always starts with the module name and contains a '.' followed by the config name. If a module passes "config1" as the name to a register function, it will be registered as MODULENAME.config1. **Configuration Persistence**: Module Configurations exist only as long as a module is loaded. If a module is unloaded, the configurations are removed. There is now also a minimal core API for removal of standardConfig objects from configs by name. **Get and Set Callbacks**: Storage of config values is owned by the module that registers them, and provides callbacks for Redis to access and manipulate the values. This is exposed through a GET and SET callback. The get callback returns a typed value of the config to redis. The callback takes the name of the configuration, and also a privdata pointer. Note that these only take the CONFIGNAME portion of the config, not the entire MODULENAME.CONFIGNAME. ``` typedef RedisModuleString * (*RedisModuleConfigGetStringFunc)(const char *name, void *privdata); typedef long long (*RedisModuleConfigGetNumericFunc)(const char *name, void *privdata); typedef int (*RedisModuleConfigGetBoolFunc)(const char *name, void *privdata); typedef int (*RedisModuleConfigGetEnumFunc)(const char *name, void *privdata); ``` Configs must also must specify a set callback, i.e. what to do on a CONFIG SET XYZ 123 or when loading configurations from cli/.conf file matching these typedefs. *name* is again just the CONFIGNAME portion, *val* is the parsed value from the core, *privdata* is the registration time privdata pointer, and *err* is for providing errors to a client. ``` typedef int (*RedisModuleConfigSetStringFunc)(const char *name, RedisModuleString *val, void *privdata, RedisModuleString **err); typedef int (*RedisModuleConfigSetNumericFunc)(const char *name, long long val, void *privdata, RedisModuleString **err); typedef int (*RedisModuleConfigSetBoolFunc)(const char *name, int val, void *privdata, RedisModuleString **err); typedef int (*RedisModuleConfigSetEnumFunc)(const char *name, int val, void *privdata, RedisModuleString **err); ``` Modules can also specify an optional apply callback that will be called after value(s) have been set via CONFIG SET: ``` typedef int (*RedisModuleConfigApplyFunc)(RedisModuleCtx *ctx, void *privdata, RedisModuleString **err); ``` **Flags:** We expose 7 new flags to the module, which are used as part of the config registration. ``` #define REDISMODULE_CONFIG_MODIFIABLE 0 /* This is the default for a module config. */ #define REDISMODULE_CONFIG_IMMUTABLE (1ULL<<0) /* Can this value only be set at startup? */ #define REDISMODULE_CONFIG_SENSITIVE (1ULL<<1) /* Does this value contain sensitive information */ #define REDISMODULE_CONFIG_HIDDEN (1ULL<<4) /* This config is hidden in `config get <pattern>` (used for tests/debugging) */ #define REDISMODULE_CONFIG_PROTECTED (1ULL<<5) /* Becomes immutable if enable-protected-configs is enabled. */ #define REDISMODULE_CONFIG_DENY_LOADING (1ULL<<6) /* This config is forbidden during loading. */ /* Numeric Specific Configs */ #define REDISMODULE_CONFIG_MEMORY (1ULL<<7) /* Indicates if this value can be set as a memory value */ ``` **Module Registration APIs**: ``` int (*RedisModule_RegisterBoolConfig)(RedisModuleCtx *ctx, char *name, int default_val, unsigned int flags, RedisModuleConfigGetBoolFunc getfn, RedisModuleConfigSetBoolFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata); int (*RedisModule_RegisterNumericConfig)(RedisModuleCtx *ctx, const char *name, long long default_val, unsigned int flags, long long min, long long max, RedisModuleConfigGetNumericFunc getfn, RedisModuleConfigSetNumericFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata); int (*RedisModule_RegisterStringConfig)(RedisModuleCtx *ctx, const char *name, const char *default_val, unsigned int flags, RedisModuleConfigGetStringFunc getfn, RedisModuleConfigSetStringFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata); int (*RedisModule_RegisterEnumConfig)(RedisModuleCtx *ctx, const char *name, int default_val, unsigned int flags, const char **enum_values, const int *int_values, int num_enum_vals, RedisModuleConfigGetEnumFunc getfn, RedisModuleConfigSetEnumFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata); int (*RedisModule_LoadConfigs)(RedisModuleCtx *ctx); ``` The module name will be auto appended along with a "." to the front of the name of the config. **What RM_Register[...]Config does**: A RedisModule struct now keeps a list of ModuleConfig objects which look like: ``` typedef struct ModuleConfig { sds name; /* Name of config without the module name appended to the front */ void *privdata; /* Optional data passed into the module config callbacks */ union get_fn { /* The get callback specificed by the module */ RedisModuleConfigGetStringFunc get_string; RedisModuleConfigGetNumericFunc get_numeric; RedisModuleConfigGetBoolFunc get_bool; RedisModuleConfigGetEnumFunc get_enum; } get_fn; union set_fn { /* The set callback specified by the module */ RedisModuleConfigSetStringFunc set_string; RedisModuleConfigSetNumericFunc set_numeric; RedisModuleConfigSetBoolFunc set_bool; RedisModuleConfigSetEnumFunc set_enum; } set_fn; RedisModuleConfigApplyFunc apply_fn; RedisModule *module; } ModuleConfig; ``` It also registers a standardConfig in the configs array, with a pointer to the ModuleConfig object associated with it. **What happens on a CONFIG GET/SET MODULENAME.MODULECONFIG:** For CONFIG SET, we do the same parsing as is done in config.c and pass that as the argument to the module set callback. For CONFIG GET, we call the module get callback and return that value to config.c to return to a client. **CONFIG REWRITE**: Starting up a server with module configurations in a .conf file but no module load directive will fail. The flip side is also true, specifying a module load and a bunch of module configurations will load those configurations in using the module defined set callbacks on a RM_LoadConfigs call. Configs being rewritten works the same way as it does for standard configs, as the module has the ability to specify a default value. If a module is unloaded with configurations specified in the .conf file those configurations will be commented out from the .conf file on the next config rewrite. **RM_LoadConfigs:** `RedisModule_LoadConfigs(RedisModuleCtx *ctx);` This last API is used to make configs available within the onLoad() after they have been registered. The expected usage is that a module will register all of its configs, then call LoadConfigs to trigger all of the set callbacks, and then can error out if any of them were malformed. LoadConfigs will attempt to set all configs registered to either a .conf file argument/loadex argument or their default value if an argument is not specified. **LoadConfigs is a required function if configs are registered. ** Also note that LoadConfigs **does not** call the apply callbacks, but a module can do that directly after the LoadConfigs call. **New Command: MODULE LOADEX [CONFIG NAME VALUE] [ARGS ...]:** This command provides the ability to provide startup context information to a module. LOADEX stands for "load extended" similar to GETEX. Note that provided config names need the full MODULENAME.MODULECONFIG name. Any additional arguments a module might want are intended to be specified after ARGS. Everything after ARGS is passed to onLoad as RedisModuleString **argv. Co-authored-by:
Madelyn Olson <madelyneolson@gmail.com> Co-authored-by:
Madelyn Olson <matolson@amazon.com> Co-authored-by:
sundb <sundbcn@gmail.com> Co-authored-by:
Madelyn Olson <34459052+madolson@users.noreply.github.com> Co-authored-by:
Oran Agra <oran@redislabs.com> Co-authored-by:
Yossi Gottlieb <yossigo@gmail.com>
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- 28 Mar, 2022 2 commits
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Oran Agra authored
There are a few places that use a hard coded const of 128 to allocate a buffer for d2string. Replace these with a clear macro. Note that In theory, converting double into string could take as much as nearly 400 chars, but since d2string uses `%g` and not `%f`, it won't pass some 40 chars. unrelated: restore some changes to auto generated commands.c that got accidentally reverted in #10293
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Moti Cohen authored
A timing issue of debug sleep master isn't long enough to ensure that master is down and let the test identify it. Replaced the code with suspend PID until verified master-is-down.
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- 27 Mar, 2022 2 commits
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Oran Agra authored
#10381 fixed an issue in `redis-cli --cluster reshard` that used to fail it (redis-cli) because of a race condition. the race condition is / was that when moving the last slot from a node, sometimes the PONG messages delivering the configuration change arrive to that node before the SETSLOT arrives to it, and it becomes a replica. other times the the SETSLOT arrive first, and then PONG **doesn't** demote it. **however**, the PR also added a new test that suffers from exactly the same race condition, and the tests started failing a lot. The fact is (if i understand it correctly), that this test (the one being deleted here), isn't related to the fix that PR fixed (which was to fix redis-cli). The race condition in the cluster code still happens, and as long as we don't solve it, there's no reason to test it. For now, even if my understandings are wrong, i'm gonna delete that failing test, since as far as i understand, #10381 didn't introduce any new risks for that matter (which are gonna be compromised by removing this check), this race existed since forever, and still exists, and the fact that redis-cli is now immune to it is still being tested. Additional work should be carried to fix it, and i live it for other PRs to handle.
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Moti Cohen authored
Replace condition with wait_for_condition On "Verify sentinel that restarted failed to reconnect master after ACL change" The reason we reach it, is because the test is fast enough to modify ACL and test sentinel connection status with the server - before its scheduled operation got the chance to update connection status with the server: ``` /* Perform scheduled operations for the specified Redis instance. */ void sentinelHandleRedisInstance(sentinelRedisInstance *ri) { /* ========== MONITORING HALF ============ */ /* Every kind of instance */ sentinelReconnectInstance(ri); ```
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- 25 Mar, 2022 1 commit
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zhaozhao.zz authored
To remove `pending_querybuf`, the key point is reusing `querybuf`, it means master client's `querybuf` is not only used to parse command, but also proxy to sub-replicas. 1. add a new variable `repl_applied` for master client to record how many data applied (propagated via `replicationFeedStreamFromMasterStream()`) but not trimmed in `querybuf`. 2. don't sdsrange `querybuf` in `commandProcessed()`, we trim it to `repl_applied` after the whole replication pipeline processed to avoid fragmented `sdsrange`. And here are some scenarios we cannot trim to `qb_pos`: * we don't receive complete command from master * master client blocked because of client pause * IO threads operate read, master client flagged with CLIENT_PENDING_COMMAND In these scenarios, `qb_pos` points to the part of the current command or the beginning of next command, and the current command is not applied yet, so the `repl_applied` is not equal to `qb_pos`. Some other notes: * Do not do big arg optimization on master client, since we can only sdsrange `querybuf` after data sent to replicas. * Set `qb_pos` and `repl_applied` to 0 when `freeClient` in `replicationCacheMaster`. * Rewrite `processPendingCommandsAndResetClient` to `processPendingCommandAndInputBuffer`, let `processInputBuffer` to be called successively after `processCommandAndResetClient`.
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- 22 Mar, 2022 1 commit
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Meir Shpilraien (Spielrein) authored
The PR extends RM_Call with 3 new capabilities using new flags that are given to RM_Call as part of the `fmt` argument. It aims to assist modules that are getting a list of commands to be executed from the user (not hard coded as part of the module logic), think of a module that implements a new scripting language... * `S` - Run the command in a script mode, this means that it will raise an error if a command which are not allowed inside a script (flaged with the `deny-script` flag) is invoked (like SHUTDOWN). In addition, on script mode, write commands are not allowed if there is not enough good replicas (as configured with `min-replicas-to-write`) and/or a disk error happened. * `W` - no writes mode, Redis will reject any command that is marked with `write` flag. Again can be useful to modules that implement a new scripting language and wants to prevent any write commands. * `E` - Return errors as RedisModuleCallReply. Today the errors that happened before the command was invoked (like unknown commands or acl error) return a NULL reply and set errno. This might be missing important information about the failure and it is also impossible to just pass the error to the user using RM_ReplyWithCallReply. This new flag allows you to get a RedisModuleCallReply object with the relevant error message and treat it as if it was an error that was raised by the command invocation. Tests were added to verify the new code paths. In addition small refactoring was done to share some code between modules, scripts, and `processCommand` function: 1. `getAclErrorMessage` was added to `acl.c` to unified to log message extraction from the acl result 2. `checkGoodReplicasStatus` was added to `replication.c` to check the status of good replicas. It is used on `scriptVerifyWriteCommandAllow`, `RM_Call`, and `processCommand`. 3. `writeCommandsGetDiskErrorMessage` was added to `server.c` to get the error message on persistence failure. Again it is used on `scriptVerifyWriteCommandAllow`, `RM_Call`, and `processCommand`.
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- 21 Mar, 2022 3 commits
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guybe7 authored
Bug introduced in #9403, caused inconsistency between master and replica in case just the length (i.e. set a high-index bit to 0) changed.
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Meir Shpilraien (Spielrein) authored
Increase function tests timeout to avoid false failures on slow systems.
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Madelyn Olson authored
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- 20 Mar, 2022 1 commit
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郭伟光 authored
fix #10439. see https://github.com/redis/redis/pull/9872 When executing SHUTDOWN we pause the client so we can un-pause it if the shutdown fails. this could happen during the timeout, if the shutdown is aborted, but could also happen from withing the initial `call()` to shutdown, if the rdb save fails. in that case when we return to `call()`, we'll crash if `c->cmd` has been set to NULL. The call stack is: ``` unblockClient(c) replyToClientsBlockedOnShutdown() cancelShutdown() finishShutdown() prepareForShutdown() shutdownCommand() ``` what's special about SHUTDOWN in that respect is that it can be paused, and then un-paused before the original `call()` returns. tests where added for both failed shutdown, and a followup successful one.
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- 18 Mar, 2022 1 commit
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sundb authored
When ::singledb is 0, we will use db 9 for the test db. Since ::singledb is set to 1 in the cluster-related tests, but not restored, some subsequent tests associated with db 9 will fail.
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- 16 Mar, 2022 5 commits
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Madelyn Olson authored
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Viktor Söderqvist authored
After migrating a slot, send CLUSTER SETSLOT NODE to the destination node first to make sure the slot isn't left without an owner in case the destination node crashes before it is set as new owner. When informing the source node, it can happen that the destination node has already informed it and if the source node has lost its last slot, it has already turned itself into a replica. Redis-cli should ignore this error in this case.
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Binbin authored
The new module redact test will fail with valgrind: ``` [err]: modules can redact arguments in tests/unit/moduleapi/auth.tcl Expected 'slowlog reset' to be equal to 'auth.redact 1 (redacted) 3 (redacted)' (context: type eval line 12 cmd {assert_equal {slowlog reset} [lindex [lindex [r slowlog get] 2] 3]} proc ::test) ``` The reason is that with `slowlog-log-slower-than 10000`, `slowlog get` will have a chance to exceed 10ms. Made two changes to avoid failure: 1. change `slowlog-log-slower-than` from 10000 to -1, distable it. 2. assert to use the previous execution result. In theory, the second one can actually be left unchanged, but i think it will be better if it is changed.
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Harkrishn Patro authored
Implement a new cluster shards command, which provides a flexible and extensible API for topology discovery. Co-authored-by:
Madelyn Olson <madelyneolson@gmail.com>
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Madelyn Olson authored
Add module API for redacting client commands
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- 15 Mar, 2022 1 commit
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ranshid authored
Currently the sort and sort_ro can access external keys via `GET` and `BY` in order to make sure the user cannot violate the authorization ACL rules, the decision is to reject external keys access patterns unless ACL allows SORT full access to all keys. I.e. for backwards compatibility, SORT with GET/BY keeps working, but if ACL has restrictions to certain keys, these features get permission denied. ### Implemented solution We have discussed several potential solutions and decided to only allow the GET and BY arguments when the user has all key permissions with the SORT command. The reasons being that SORT with GET or BY is problematic anyway, for instance it is not supported in cluster mode since it doesn't declare keys, and we're not sure the combination of that feature with ACL key restriction is really required. **HOWEVER** If in the fullness of time we will identify a real need for fine grain access support for SORT, we would implement the complete solution which is the alternative described below. ### Alternative (Completion solution): Check sort ACL rules after executing it and before committing output (either via store or to COB). it would require making several changes to the sort command itself. and would potentially cause performance degradation since we will have to collect all the get keys instead of just applying them to a temp array and then scan the access keys against the ACL selectors. This solution can include an optimization to avoid the overheads of collecting the key names, in case the ACL rules grant SORT full key-access, or if the ACL key pattern literal matches the one used in GET/BY. It would also mean that authorization would be O(nlogn) since we will have to complete most of the command execution before we can perform verification Co-authored-by:
Madelyn Olson <madelyneolson@gmail.com> Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 14 Mar, 2022 1 commit
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Binbin authored
We need to wait for `sentinelTimer` to kick in, and then trigger the reconnect. As for another change, we should better call `server_set_password` before calling SENTINEL SET auth-pass. Fixes problem introeuced in #10400
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- 13 Mar, 2022 1 commit
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Moti Cohen authored
When updating SENTINEL with master’s new password (command: `SENTINEL SET mymaster auth-pass some-new-password`), sentinel might still keep the old connection and avoid reconnecting with the new password. This is because of wrong logic that traces the last ping (pong) time to servers. In fact it worked fine until 8631e647 changed the condition to send ping. To resolve it with minimal risk, let’s disconnect master and replicas once changing password/user. Based on earlier work of yz1509.
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- 10 Mar, 2022 2 commits
- 09 Mar, 2022 1 commit
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蔡相跃 authored
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- 08 Mar, 2022 2 commits
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guybe7 authored
Deleting a stream while a client is blocked XREADGROUP should unblock the client. The idea is that if a client is blocked via XREADGROUP is different from any other blocking type in the sense that it depends on the existence of both the key and the group. Even if the key is deleted and then revived with XADD it won't help any clients blocked on XREADGROUP because the group no longer exist, so they would fail with -NOGROUP anyway. The conclusion is that it's better to unblock these clients (with error) upon the deletion of the key, rather than waiting for the first XADD. Other changes: 1. Slightly optimize all `serveClientsBlockedOn*` functions by checking `server.blocked_clients_by_type` 2. All `serveClientsBlockedOn*` functions now use a list iterator rather than looking at `listFirst`, relying on `unblockClient` to delete the head of the list. Before this commit, only `serveClientsBlockedOnStreams` used to work like that. 3. bugfix: CLIENT UNBLOCK ERROR should work even if the command doesn't have a timeout_callback (only relevant to module commands)
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zhaozhao.zz authored
In some special commands like eval_ro / fcall_ro we allow no-writes commands. But may-replicate commands are no-writes too, that leads crash when client pause write:
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- 07 Mar, 2022 2 commits
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Shaya Potter authored
Add a new REDISMODULE_EVENT_CONFIG event type for notifying modules when Redis configuration changes.
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Binbin authored
`Expected '*table size: 4096*' to match '*table size: 8192*'` This test failed once on daily macOS, the reason is because the bgsave has not stopped after the kill and `after 200`. So there is a child process and no rehash triggered. This commit use `waitForBgsave` to wait for it to finish.
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- 06 Mar, 2022 1 commit
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Yossi Gottlieb authored
Apparently using `\x` produces different results between tclsh 8.5 and 8.6, whereas `\u` is more consistent.
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- 05 Mar, 2022 1 commit
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Yuta Hongo authored
Normally, `redis-cli` escapes non-printable data received from Redis, using a custom scheme (which is also used to handle quoted input). When using `--json` this is not desired as it is not compatible with RFC 7159, which specifies JSON strings are assumed to be Unicode and how they should be escaped. This commit changes `--json` to follow RFC 7159, which means that properly encoded Unicode strings in Redis will result with a valid Unicode JSON. However, this introduces a new problem with `--json` and data that is not valid Unicode (e.g., random binary data, text that follows other encoding, etc.). To address this, we add `--quoted-json` which produces JSON strings that follow the original redis-cli quoting scheme. For example, a value that consists of only null (0x00) bytes will show up as: * `"\u0000\u0000\u0000"` when using `--json` * `"\\x00\\x00\\x00"` when using `--quoted-json`
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- 01 Mar, 2022 2 commits
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ranshid authored
In order to resolve some flaky tests which hard rely on examine memory footprint. we introduce the following fixes: # Fix in client-eviction test - by @yoav-steinberg Sometime the libc allocator can use different size client struct allocations. this may cause unexpected memory calculations to fail the test. # Introduce new DEBUG command for disabling reply buffer resizing In order to eliminate reply buffer resizing during specific tests. we introduced the ability to disable (and enable) the resizing cron job Co-authored-by: yoav-steinberg yoav@redislabs.com
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Harkrishn Patro authored
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