- 15 Sep, 2021 1 commit
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guybe7 authored
Fix #7297 The problem: Today, there is no way for a client library or app to know the key name indexes for commands such as ZUNIONSTORE/EVAL and others with "numkeys", since COMMAND INFO returns no useful info for them. For cluster-aware redis clients, this requires to 'patch' the client library code specifically for each of these commands or to resolve each execution of these commands with COMMAND GETKEYS. The solution: Introducing key specs other than the legacy "range" (first,last,step) The 8th element of the command info array, if exists, holds an array of key specs. The array may be empty, which indicates the command doesn't take any key arguments or may contain one or more key-specs, each one may leads to the discovery of 0 or more key arguments. A client library that doesn't support this key-spec feature will keep using the first,last,step and movablekeys flag which will obviously remain unchanged. A client that supports this key-specs feature needs only to look at the key-specs array. If it finds an unrecognized spec, it must resort to using COMMAND GETKEYS if it wishes to get all key name arguments, but if all it needs is one key in order to know which cluster node to use, then maybe another spec (if the command has several) can supply that, and there's no need to use GETKEYS. Each spec is an array of arguments, first one is the spec name, the second is an array of flags, and the third is an array containing details about the spec (specific meaning for each spec type) The initial flags we support are "read" and "write" indicating if the keys that this key-spec finds are used for read or for write. clients should ignore any unfamiliar flags. In order to easily find the positions of keys in a given array of args we introduce keys specs. There are two logical steps of key specs: 1. `start_search`: Given an array of args, indicate where we should start searching for keys 2. `find_keys`: Given the output of start_search and an array of args, indicate all possible indices of keys. ### start_search step specs - `index`: specify an argument index explicitly - `index`: 0 based index (1 means the first command argument) - `keyword`: specify a string to match in `argv`. We should start searching for keys just after the keyword appears. - `keyword`: the string to search for - `start_search`: an index from which to start the keyword search (can be negative, which means to search from the end) Examples: - `SET` has start_search of type `index` with value `1` - `XREAD` has start_search of type `keyword` with value `[“STREAMS”,1]` - `MIGRATE` has start_search of type `keyword` with value `[“KEYS”,-2]` ### find_keys step specs - `range`: specify `[count, step, limit]`. - `lastkey`: index of the last key. relative to the index returned from begin_search. -1 indicating till the last argument, -2 one before the last - `step`: how many args should we skip after finding a key, in order to find the next one - `limit`: if count is -1, we use limit to stop the search by a factor. 0 and 1 mean no limit. 2 means ½ of the remaining args, 3 means ⅓, and so on. - “keynum”: specify `[keynum_index, first_key_index, step]`. - `keynum_index`: is relative to the return of the `start_search` spec. - `first_key_index`: is relative to `keynum_index`. - `step`: how many args should we skip after finding a key, in order to find the next one Examples: - `SET` has `range` of `[0,1,0]` - `MSET` has `range` of `[-1,2,0]` - `XREAD` has `range` of `[-1,1,2]` - `ZUNION` has `start_search` of type `index` with value `1` and `find_keys` of type `keynum` with value `[0,1,1]` - `AI.DAGRUN` has `start_search` of type `keyword` with value `[“LOAD“,1]` and `find_keys` of type `keynum` with value `[0,1,1]` (see https://oss.redislabs.com/redisai/master/commands/#aidagrun) Note: this solution is not perfect as the module writers can come up with anything, but at least we will be able to find the key args of the vast majority of commands. If one of the above specs can’t describe the key positions, the module writer can always fall back to the `getkeys-api` option. Some keys cannot be found easily (`KEYS` in `MIGRATE`: Imagine the argument for `AUTH` is the string “KEYS” - we will start searching in the wrong index). The guarantee is that the specs may be incomplete (`incomplete` will be specified in the spec to denote that) but we never report false information (assuming the command syntax is correct). For `MIGRATE` we start searching from the end - `startfrom=-1` - and if one of the keys is actually called "keys" we will report only a subset of all keys - hence the `incomplete` flag. Some `incomplete` specs can be completely empty (i.e. UNKNOWN begin_search) which should tell the client that COMMAND GETKEYS (or any other way to get the keys) must be used (Example: For `SORT` there is no way to describe the STORE keyword spec, as the word "store" can appear anywhere in the command). We will expose these key specs in the `COMMAND` command so that clients can learn, on startup, where the keys are for all commands instead of holding hardcoded tables or use `COMMAND GETKEYS` in runtime. Comments: 1. Redis doesn't internally use the new specs, they are only used for COMMAND output. 2. In order to support the current COMMAND INFO format (reply array indices 4, 5, 6) we created a synthetic range, called legacy_range, that, if possible, is built according to the new specs. 3. Redis currently uses only getkeys_proc or the legacy_range to get the keys indices (in COMMAND GETKEYS for example). "incomplete" specs: the command we have issues with are MIGRATE, STRALGO, and SORT for MIGRATE, because the token KEYS, if exists, must be the last token, we can search in reverse. it one of the keys is actually the string "keys" will return just a subset of the keys (hence, it's "incomplete") for SORT and STRALGO we can use this heuristic (the keys can be anywhere in the command) and therefore we added a key spec that is both "incomplete" and of "unknown type" if a client encounters an "incomplete" spec it means that it must find a different way (either COMMAND GETKEYS or have its own parser) to retrieve the keys. please note that all commands, apart from the three mentioned above, have "complete" key specs
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- 13 Sep, 2021 1 commit
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zhaozhao.zz authored
The main idea is how to allow a master to load replication info from RDB file when rebooting, if master can load replication info it means that replicas may have the chance to psync with master, it can save much traffic. The key point is we need guarantee safety and consistency, so there are two differences between master and replica: 1. master would load the replication info as secondary ID and offset, in case other masters have the same replid. 2. when master loading RDB, it would propagate expired keys as DEL command to replication backlog, then replica can receive these commands to delete stale keys. p.s. the expired keys when RDB loading is useful for users, so we show it as `rdb_last_load_keys_expired` and `rdb_last_load_keys_loaded` in info persistence. Moreover, after load replication info, master should update `no_replica_time` in case loading RDB cost too long time.
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- 10 Sep, 2021 1 commit
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zhaozhao.zz authored
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- 09 Sep, 2021 3 commits
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yvette903 authored
A write request may be paused unexpectedly because `server.client_pause_end_time` is old. **Recreate this:** redis-cli -p 6379 127.0.0.1:6379> client pause 500000000 write OK 127.0.0.1:6379> client unpause OK 127.0.0.1:6379> client pause 10000 write OK 127.0.0.1:6379> set key value The write request `set key value` is paused util the timeout of 500000000 milliseconds was reached. **Fix:** reset `server.client_pause_end_time` = 0 in `unpauseClients`
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Binbin authored
We want to add COUNT option for BLPOP. But we can't do it without breaking compatibility due to the command arguments syntax. So this commit introduce two new commands. Syntax for the new LMPOP command: `LMPOP numkeys [<key> ...] LEFT|RIGHT [COUNT count]` Syntax for the new BLMPOP command: `BLMPOP timeout numkeys [<key> ...] LEFT|RIGHT [COUNT count]` Some background: - LPOP takes one key, and can return multiple elements. - BLPOP takes multiple keys, but returns one element from just one key. - LMPOP can take multiple keys and return multiple elements from just one key. Note that LMPOP/BLMPOP can take multiple keys, it eventually operates on just one key. And it will propagate as LPOP or RPOP with the COUNT option. As a new command, it still return NIL if we can't pop any elements. For the normal response is nested arrays in RESP2 and RESP3, like: ``` LMPOP/BLMPOP 1) keyname 2) 1) element1 2) element2 ``` I.e. unlike BLPOP that returns a key name and one element so it uses a flat array, and LPOP that returns multiple elements with no key name, and again uses a flat array, this one has to return a nested array, and it does for for both RESP2 and RESP3 (like SCAN does) Some discuss can see: #766 #8824
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Huang Zhw authored
Add two INFO metrics: ``` total_active_defrag_time:12345 current_active_defrag_time:456 ``` `current_active_defrag_time` if greater than 0, means how much time has passed since active defrag started running. If active defrag stops, this metric is reset to 0. `total_active_defrag_time` means total time the fragmentation was over the defrag threshold since the server started. This is a followup PR for #9031
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- 08 Sep, 2021 1 commit
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zhaozhao.zz authored
When a replica paused, it would not apply any commands event the command comes from master, if we feed the non-applied command to replication stream, the replication offset would be wrong, and data would be lost after failover(since replica's `master_repl_offset` grows but command is not applied). To fix it, here are the changes: * Don't update replica's replication offset or propagate commands to sub-replicas when it's paused in `commandProcessed`. * Show `slave_read_repl_offset` in info reply. * Add an assert to make sure master client should never be blocked unless pause or module (some modules may use block way to do background (parallel) processing and forward original block module command to the replica, it's not a good way but it can work, so the assert excludes module now, but someday in future all modules should rewrite block command to propagate like what `BLPOP` does).
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- 02 Sep, 2021 1 commit
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guybe7 authored
1. MIGRATE has a potnetial key arg in argv[3]. It should be reflected in the command table. 2. getKeysUsingCommandTable should never free getKeysResult, it is always freed by the caller) The reason we never encountered this double-free bug is that almost always getKeysResult uses the statis buffer and doesn't allocate a new one.
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- 31 Aug, 2021 1 commit
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Viktor Söderqvist authored
* Enhance dict to support arbitrary metadata carried in dictEntry Co-authored-by:
Viktor Söderqvist <viktor.soderqvist@est.tech> * Rewrite slot-to-keys mapping to linked lists using dict entry metadata This is a memory enhancement for Redis Cluster. The radix tree slots_to_keys (which duplicates all key names prefixed with their slot number) is replaced with a linked list for each slot. The dict entries of the same cluster slot form a linked list and the pointers are stored as metadata in each dict entry of the main DB dict. This commit also moves the slot-to-key API from db.c to cluster.c. Co-authored-by:
Jim Brunner <brunnerj@amazon.com>
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- 24 Aug, 2021 1 commit
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Garen Chan authored
When `decr_step` is greater than `oldlimit`, the final `bestlimit` may be invalid. For example, oldlimit = 10, decr_step = 16. Current bestlimit = 15 and setrlimit() failed. Since bestlimit is less than decr_step , then exit the loop. The final bestlimit is larger than oldlimit but is invalid. Note that this only matters if the system fd limit is below 16, so unlikely to have any actual effect.
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- 12 Aug, 2021 1 commit
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Yossi Gottlieb authored
The order of setting things up follows some reasoning: Setup signal handlers first because a signal could fire at any time. Adjust OOM score before everything else to assist the OOM killer if memory resources are low. The trigger for this is a valgrind test failure which resulted with the child catching a SIGUSR1 before initializing the handler.
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- 10 Aug, 2021 2 commits
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DarrenJiang13 authored
We only use MADV_DONTNEED on Linux, that's were it was tested.
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sundb authored
Part one of implementing #8702 (taking hashes first before other types) ## Description of the feature 1. Change ziplist encoded hash objects to listpack encoding. 2. Convert existing ziplists on RDB loading time. an O(n) operation. ## Rdb format changes 1. Add RDB_TYPE_HASH_LISTPACK rdb type. 2. Bump RDB_VERSION to 10 ## Interface changes 1. New `hash-max-listpack-entries` config is an alias for `hash-max-ziplist-entries` (same with `hash-max-listpack-value`) 2. OBJECT ENCODING will return `listpack` instead of `ziplist` ## Listpack improvements: 1. Support direct insert, replace integer element (rather than convert back and forth from string) 3. Add more listpack capabilities to match the ziplist ones (like `lpFind`, `lpRandomPairs` and such) 4. Optimize element length fetching, avoid multiple calculations 5. Use inline to avoid function call overhead. ## Tests 1. Add a new test to the RDB load time conversion 2. Adding the listpack unit tests. (based on the one in ziplist.c) 3. Add a few "corrupt payload: fuzzer findings" tests, and slightly modify existing ones. Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 09 Aug, 2021 1 commit
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Eduardo Semprebon authored
Add a readonly variant of the STORE command, so it can be used on read-only workloads (replica, ACL, etc)
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- 06 Aug, 2021 1 commit
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yoav-steinberg authored
Also update qbuf tests to verify both idle and peak based resizing logic. And delete unused function: getClientsMaxBuffers
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- 05 Aug, 2021 1 commit
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yoav-steinberg authored
Reduce dict struct memory overhead on 64bit dict size goes down from jemalloc's 96 byte bin to its 56 byte bin. summary of changes: - Remove `privdata` from callbacks and dict creation. (this affects many files, see "Interface change" below). - Meld `dictht` struct into the `dict` struct to eliminate struct padding. (this affects just dict.c and defrag.c) - Eliminate the `sizemask` field, can be calculated from size when needed. - Convert the `size` field into `size_exp` (exponent), utilizes one byte instead of 8. Interface change: pass dict pointer to dict type call back functions. This is instead of passing the removed privdata field. In the future if we'd like to have private data in the callbacks we can extract it from the dict type. We can extend dictType to include a custom dict struct allocator and use it to allocate more data at the end of the dict struct. This data can then be used to store private data later acccessed by the callbacks.
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- 04 Aug, 2021 1 commit
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Wang Yuan authored
## Backgroud As we know, after `fork`, one process will copy pages when writing data to these pages(CoW), and another process still keep old pages, they totally cost more memory. For redis, we suffered that redis consumed much memory when the fork child is serializing key/values, even that maybe cause OOM. But actually we find, in redis fork child process, the child process don't need to keep some memory and parent process may write or update that, for example, child process will never access the key-value that is serialized but users may update it in parent process. So we think it may reduce COW if the child process release memory that it is not needed. ## Implementation For releasing key value in child process, we may think we call `decrRefCount` to free memory, but i find the fork child process still use much memory when we don't write any data to redis, and it costs much more time that slows down bgsave. Maybe because memory allocator doesn't really release memory to OS, and it may modify some inner data for this free operation, especially when we free small objects. Moreover, CoW is based on pages, so it is a easy way that we only free the memory bulk that is not less than kernel page size. madvise(MADV_DONTNEED) can quickly release specified region pages to OS bypassing memory allocator, and allocator still consider that this memory still is used and don't change its inner data. There are some buffers we can release in the fork child process: - **Serialized key-values** the fork child process never access serialized key-values, so we try to free them. Because we only can release big bulk memory, and it is time consumed to iterate all items/members/fields/entries of complex data type. So we decide to iterate them and try to release them only when their average size of item/member/field/entry is more than page size of OS. - **Replication backlog** Because replication backlog is a cycle buffer, it will be changed quickly if redis has heavy write traffic, but in fork child process, we don't need to access that. - **Client buffers** If clients have requests during having the fork child process, clients' buffer also be changed frequently. The memory includes client query buffer, output buffer, and client struct used memory. To get child process peak private dirty memory, we need to count peak memory instead of last used memory, because the child process may continue to release memory (since COW used to only grow till now, the last was equivalent to the peak). Also we're adding a new `current_cow_peak` info variable (to complement the existing `current_cow_size`) Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 03 Aug, 2021 1 commit
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Jonah H. Harris authored
Add SINTERCARD and ZINTERCARD commands that are similar to ZINTER and SINTER but only return the cardinality with minimum processing and memory overheads. Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 02 Aug, 2021 2 commits
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Binbin authored
1. In sendBulkToSlave, we used LL_VERBOSE in the past, changed to LL_WARNING. (all the other places that do freeClient(slave) use LL_WARNING) 2. The old style LOG_WARNING, chang it to LL_WARNING. Introduced in an old pr (#1690).
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Ning Sun authored
Add NX, XX, GT, and LT flags to EXPIRE, PEXPIRE, EXPIREAT, PEXAPIREAT. - NX - only modify the TTL if no TTL is currently set - XX - only modify the TTL if there is a TTL currently set - GT - only increase the TTL (considering non-volatile keys as infinite expire time) - LT - only decrease the TTL (considering non-volatile keys as infinite expire time) return value of the command is 0 when the operation was skipped due to one of these flags. Signed-off-by:
Ning Sun <sunng@protonmail.com>
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- 26 Jul, 2021 1 commit
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Huang Zhw authored
Add two INFO metrics: ``` total_eviction_exceeded_time:69734 current_eviction_exceeded_time:10230 ``` `current_eviction_exceeded_time` if greater than 0, means how much time current used memory is greater than `maxmemory`. And we are still over the maxmemory. If used memory is below `maxmemory`, this metric is reset to 0. `total_eviction_exceeded_time` means total time used memory is greater than `maxmemory` since server startup. The units of these two metrics are ms. Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 20 Jul, 2021 1 commit
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Oran Agra authored
- SELECT and WAIT don't read or write from the keyspace (unlike DEL, EXISTS, EXPIRE, DBSIZE, KEYS, etc). they're more similar to AUTH and HELLO (and maybe PING and COMMAND). they only affect the current connection, not the server state, so they should be `@connection`, not `@keyspace` - ROLE, like LASTSAVE is `@admin` (and `@dangerous` like INFO) - ASKING, READONLY, READWRITE are `@connection` too (not `@keyspace`) - Additionally, i'm now documenting the exact meaning of each ACL category so it's clearer which commands belong where.
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- 11 Jul, 2021 1 commit
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perryitay authored
There are two issues fixed in this commit: 1. we want to fail the EXEC command in case there is a watched key that's logically expired but not yet deleted by active expire or lazy expire. 2. we saw that currently cache time is update in every `call()` (including nested calls), this time is being also being use for the isKeyExpired comparison, we want to update the cache time only in the first call (execCommand) Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 09 Jul, 2021 1 commit
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Huang Zhw authored
redis-check-aof/redis-check-rdb. Related to #9176. Before this commit, redis-server starts as redis-check-aof/redis-check-rdb if the directory it is started from contains the string redis-check-aof/redis-check-rdb. We check the executable name instead of directory.
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- 05 Jul, 2021 2 commits
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Oran Agra authored
when tracking the peak, don't reset the peak to 0, reset it to the maximum of the current used, and the planned to be used by the current arg. when shrining, split the two separate conditions. the idle time shrinking will remove all free space. but the peak based shrinking will keep room for the current arg. when we resize due to a peak (rahter than idle time), don't trim all unused space, let the qbuf keep a size that's sufficient for the currently process bulklen, and the current peak. Co-authored-by:
sundb <sundbcn@gmail.com> Co-authored-by:
yoav-steinberg <yoav@monfort.co.il>
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zhaozhao.zz authored
1. querybuf_peak has not been updated correctly in readQueryFromClient. 2. qbuf shrinking uses sdsalloc instead of sdsAllocSize see more details in issue #4983
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- 03 Jul, 2021 1 commit
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Madelyn Olson authored
Update incrDecrCommand to use addReplyLongLong
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- 01 Jul, 2021 1 commit
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Wang Yuan authored
Before this commit, redis-server starts in sentinel mode if the first startup argument has the string redis-sentinel, so redis also starts in sentinel mode if the directory it was started from contains the string redis-sentinel. Now we check the executable name instead of directory. Some examples: 1. Execute ./redis-sentinel/redis/src/redis-sentinel, starts in sentinel mode. 2. Execute ./redis-sentinel/redis/src/redis-server, starts in server mode, but before, redis will start in sentinel mode. 3. Execute ./redis-sentinel/redis/src/redis-server --sentinel, of course, like before, starts in sentinel mode.
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- 24 Jun, 2021 1 commit
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Yossi Gottlieb authored
In the past, the first bind address that was explicitly specified was also used to bind outgoing connections. This could result with some problems. For example: on some systems using `bind 127.0.0.1` would result with outgoing connections also binding to `127.0.0.1` and failing to connect to remote addresses. With the recent change to the way `bind` is handled, this presented other issues: * The default first bind address is '*' which is not a valid address. * We make no distinction between user-supplied config that is identical to the default, and the default config. This commit addresses both these issues by introducing an explicit configuration parameter to control the bind address on outgoing connections.
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- 22 Jun, 2021 1 commit
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Yossi Gottlieb authored
* Specifying an empty `bind ""` configuration prevents Redis from listening on any TCP port. Before this commit, such configuration was not accepted. * Using `CONFIG GET bind` will always return an explicit configuration value. Before this commit, if a bind address was not specified the returned value was empty (which was an anomaly). Another behavior change is that modifying the `bind` configuration to a non-default value will NO LONGER DISABLE protected-mode implicitly.
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- 17 Jun, 2021 1 commit
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gourav authored
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- 16 Jun, 2021 1 commit
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Uri Shachar authored
* Cleaning up the cluster interface by moving almost all related declarations into cluster.h (no logic change -- just moving declarations/definitions around) This initial effort leaves two items out of scope - the configuration parsing into the server struct and the internals exposed by the clusterNode struct. * Remove unneeded declarations of dictSds* Ideally all the dictSds functionality would move from server.c into a dedicated module so we can avoid the duplication in redis-benchmark/cli * Move crc16 back into server.h, will be moved out once we create a seperate header file for hashing functions
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- 15 Jun, 2021 1 commit
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sundb authored
The initialize memory of `querybuf` is `PROTO_IOBUF_LEN(1024*16) * 2` (due to sdsMakeRoomFor being greedy), under `jemalloc`, the allocated memory will be 40k. This will most likely result in the `querybuf` being resized when call `clientsCronResizeQueryBuffer` unless the client requests it fast enough. Note that this bug existed even before #7875, since the condition for resizing includes the sds headers (32k+6). ## Changes 1. Use non-greedy sdsMakeRoomFor when allocating the initial query buffer (of 16k). 1. Also use non-greedy allocation when working with BIG_ARG (we won't use that extra space anyway) 2. in case we did use a greedy allocation, read as much as we can into the buffer we got (including internal frag), to reduce system calls. 3. introduce a dedicated constant for the shrinking (same value as before) 3. Add test for querybuf. 4. improve a maxmemory test by ignoring the effect of replica query buffers (can accumulate many ACKs on slow env) 5. improve a maxmemory by disabling slowlog (it will cause slight memory growth on slow env).
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- 14 Jun, 2021 1 commit
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YaacovHazan authored
Today when we load the AOF on startup, the loadAppendOnlyFile checks if the file is openning for reading. This check is redundent (dead code) as we open the AOF file for writing at initServer, and the file will always be existing for the loadAppendOnlyFile. In this commit: - remove all the exit(1) from loadAppendOnlyFile, as it is the caller responsibility to decide what to do in case of failure. - move the opening of the AOF file for writing, to be after we loading it. - avoid return -ERR in DEBUG LOADAOF, when the AOF is existing but empty
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- 10 Jun, 2021 1 commit
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Binbin authored
This PR adds a spell checker CI action that will fail future PRs if they introduce typos and spelling mistakes. This spell checker is based on blacklist of common spelling mistakes, so it will not catch everything, but at least it is also unlikely to cause false positives. Besides that, the PR also fixes many spelling mistakes and types, not all are a result of the spell checker we use. Here's a summary of other changes: 1. Scanned the entire source code and fixes all sorts of typos and spelling mistakes (including missing or extra spaces). 2. Outdated function / variable / argument names in comments 3. Fix outdated keyspace masks error log when we check `config.notify-keyspace-events` in loadServerConfigFromString. 4. Trim the white space at the end of line in `module.c`. Check: https://github.com/redis/redis/pull/7751 5. Some outdated https link URLs. 6. Fix some outdated comment. Such as: - In README: about the rdb, we used to said create a `thread`, change to `process` - dbRandomKey function coment (about the dictGetRandomKey, change to dictGetFairRandomKey) - notifyKeyspaceEvent fucntion comment (add type arg) - Some others minor fix in comment (Most of them are incorrectly quoted by variable names) 7. Modified the error log so that users can easily distinguish between TCP and TLS in `changeBindAddr`
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- 30 May, 2021 1 commit
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ny0312 authored
Till now, on replica full-sync we used to transfer absolute time for TTL, however when a command arrived (EXPIRE or EXPIREAT), we used to propagate it as is to replicas (possibly with relative time), but always translate it to EXPIREAT (absolute time) to AOF. This commit changes that and will always use absolute time for propagation. see discussion in #8433 Furthermore, we Introduce new commands: `EXPIRETIME/PEXPIRETIME` that allow extracting the absolute TTL time from a key.
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- 19 May, 2021 1 commit
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Madelyn Olson authored
Redact commands that include sensitive data from slowlog and monitor
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- 17 May, 2021 1 commit
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Oran Agra authored
And also add tests to cover lazy free of streams with various types of metadata (see #8932)
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- 13 May, 2021 1 commit
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Raghav Muddur authored
* EVALSHA_RO and EVAL_RO Commands Added new readonly versions of EVAL and EVALSHA.
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- 04 May, 2021 1 commit
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yoav-steinberg authored
When client breached the output buffer soft limit but then went idle, we didn't disconnect on soft limit timeout, now we do. Note this also resolves some sporadic test failures in due to Linux buffering data which caused tests to fail if during the test we went back under the soft COB limit. Co-authored-by:
Oran Agra <oran@redislabs.com> Co-authored-by:
sundb <sundbcn@gmail.com>
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