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ChangeLog
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2024-09-02 [version 1.14.0]
## 🐣 New Features
* Add `mop upsert` method. #292
* Add multiple storage method.
* `memcached_mset()`
* `memcached_madd()`
* `memcached_mreplace()`
* `memcached_mprepend()`
* `memcached_mpppend()`
* `memcached_mcas()`
## 🐛 Bug Fixes
* Fix buffer size when calling `snprintf()` with leading whitespace and integer value. #304
* Use `__linux__` instead of `TARGET_OS_LINUX` to check if the current OS is Linux. #306
* Use different lock filenames for multiple proxy in a process
## 📝 Documentation
* Fix typo.
## ✅ Testing
* Cancel previous CI in progress when new commits are added. #296
2024-02-22 [version 1.13.3]
## 🔧 Enhancements
* Fix compile warnings on RHEL8 and MacOS.
* Do not use `#pragma once`.
* Select smallest host as owner when ketama hash collided. #237
* Add parameter validation in `arcus_proxy_connect()`.
* Move io reset from where calls `memcached_vdo()` to where fails inside of `memcached_vdo()`. #250
* Use `<latest-release>-unknown` version when git describe fails.
* Add a limit of count about bop mget/smget commands.
* Import `scanner.l` and `parser.yy` from libmemcached-0.53.
* Refactor ketama weighted related implementation. #263 #273 #274 #275 #276 #277
* Fix package name and info to 'arcus-c-client'.
## 🐛 Bug Fixes
* Call `arcus_server_check_for_update()` in `memcached_exist_by_key()`. #241
* Check `mc->connect_timeout` instead of `mc->poll_timeout` in `connect_poll()`. #247
* Remove a duplicate init macro in configure.ac. #267
* Return `hashkit_get_distribution_function()` instead of `hashkit_get_function()` in `memcached_behavior_get_distribution_hash()`.
## 📝 Documentation
* Add unit test FAQ.
* Fix inconsistencies between code and documentation.
## ✅ Testing
* Use Github Actions instead of Travis for CI test.
2022-02-22 [version 1.13.2]
* [FEATURE] supported the 3 replicas in replication.
* [FIX] return switchover error code when coll get with delete.
* [FIX] fixed wrong aggregate pipe return code in case of failure.
* [FIX] hold the pool lock when update the cache list of master mc.
* [FIX] fixed the cache list update of member mc in proxy mode.
* [ENHANCE] enhanced the cachelist update logic with serverinfo.
* [ENHANCE] Not to close and reopen pool connections
* [ENHANCE] removed the dual pool repopulation when start at first.
* [ENHANCE] optimized the slave comparision in memcached_rgroup_update().
* [ENHANCE] optimized the release processing in memcached_pool.
* [ENHANCE] ensure more concurrency in memcached pool.
* [CLEANUP] fixed the compile warnings.
* [CLEANUP] refactored serveral parts of code.
2021-07-06 [version 1.13.1]
* [FEATURE] enable zookeeper multi thread mode.
* [FIX] if MEMCACHED_ERRNO entered in memcached_set_error(),
return instead of assert.
2021-01-18 [version 1.13.0]
* [FEATURE] supported mgets command.
* [FIX] check space_sepatated_keys immediately after memcached_connect().
* [FIX] check mget command support immediately after memcached_connect().
* [INTERNAL] return MEMCACHED_CONNECTION_FAILURE in memcached_fetch_result().
2020-12-09 [version 1.12.0]
* [FEATURE] set the max key size to 4000.
* [DOC] changed max element bytes: 4KB => 16KB.
(committed at 20200317 and included in 1.10.4)
* [DOC] fixed the smget result API and structure names.
2020-12-07 [version 1.11.0]
* [FEATURE] supported space-separated keys.
* [FEATURE] supported mget command, efficient for getting multiple items.
* [FEATURE] requested version operation when connect to server.
* [FEATURE] increased max key length: 250 => 4K.
* [ENHANCE] do memcached_quit_server() if poll timeout occurs in io_flush.
* [ENHANCE] increased cluster max size for multi key op: 200 => 1000.
* [IMPROVE] reduced string copy when convert eflag/update_filter to string.
* [FIX] set purge recursion flag to false before return.
* [FIX] handled the host failures in the multi key operation.
* [FIX] unset noreply before get operation in noreply_test().
* [FIX] fixed unallocated memory access in mkey fetch.
* [OTHERS] Refactored some code for readabiblity.
2020-10-22 [version 1.10.5]
* [FEATURE] bop incr/decr with initial option.
* [FIX] registered "NULL" if hostname lookup fails in do_add_client_info().
* [FIX] added the TYPE_MISMATCH handling in kv response
* [DOC] changed the description of the max item size
* [DOC] refactored the document format and some content.
2020-08-04 [version 1.10.4]
* [FEATURE] Added memcached_detail_error_message() API.
* [FEATURE] Immediate reconnect according to error responses.
* [FEATURE] Changed max element bytes. 4KB => 16KB.
* [FEATURE] Returned E2BIG if CLIENT_ERROR object too large.
* [FEATURE] Changed MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT. 2sec => 1sec.
* [ENHANCE] Enlarged the contents of error messages in detail.
* [ENHANCE] Stored detail error message in error_messages field.
* [ENHANCE] Added arcus ZK manager for processing ZK events.
* [FIX] pipe operation is stopped if switchover is done.
* [FIX] Fixed version check condition.
* [FIX] Fixed several bugs in handling response strings.
* [FIX] Added the key test where needed.
* [FIX] Do client_info and watcher registration only when needed.
* [FIX] Prevent master_mc from being freed while using pool.
* [FIX] Changed to create version using m4 file.
* [FIX] Fixed simple null pointer dereferencing.
* [DOC] Added multi eflag filter description.
* [Test] Added test case for PIPE_ERROR bad error.
* [OTHERS] Refactored the response module for handling responses.
* [OTHERS] Refactored much code for readabiblity.
2019-12-17 [version 1.10.3] (revised)
* [FIX] master failover issue by setting serverlist_changed corretly.
* [Fix] enable replication by referencing ZK in multi process mode.
* [Fix] fixed segfault caused by code tag mistake.
2019-11-14 [version 1.10.2]
* [Fix] fixed compiler errors reported by @orchistro.
2019-11-04 [version 1.10.1]
* [Enhance] Update the server list of fetched mcs with ketama version.
* [Enhance] Repopulate mc pool only when master's server list is chaned.
* [Enhance] Use the shared ketama hashring of master mc in arcus mc pool.
* [Enhance] Repopulate mc pool only when the server list is changed.
* [Fix] Solved assertion failure when connect has failed.
* [Fix] Freed only the rgroup list if replication is enabled.
* [Fix] Registered the missed client info if replication is enabled.
* [Fix] Solved problems of getting collection attributes(type, readable)
* [Internal] Changed the method of confirming arcus cluster type.
2017-09-26 [version 1.10.0]
* [Feature] Support map collection.
2017-09-18 [version 1.9.0]
* [Fix] Fix some bugs of existing sort-merge get.
- bugs related to trimmed key and duplicate bkey.
* [Feature] Support new sort-merge get operation.
- duplicate or unique sort-merge get.
- OUT_OF_RANGE is treated as missed key.
- Missed keys are given with the causes.
- Trimmed keys and the last bkeys are given.
- offset search condition is removed.
* [Feature] Add memcached_coll_result_get_position() API.
2017-09-11 [version 1.8.0]
* [Feature] Add bop position operations.
- memcached_bop_find_position()
- memcached_bop_ext_find_position()
- memcached_bop_get_by_position()
- memcached_bop_find_position_with_get()
- memcached_bop_ext_find_position_with_get()
2017-07-31 [version 1.7.5]
* [Feature] Support replication without read on slave feature.
* [Fix] the last_response_code setting of piped operations.
* [Fix] the piped_return_code setting in do_coll_piped_insert_bulk().
* [Fix] the mis-caculated MEMCACHED_COLL_MAX_FILTER_STR_LENGTH value.
* [Fix] pipe operation bugs like followings.
- buffer overflow when request string is too long.
- incorrect error handling when memcached_vdo fails.
* [Fix] the end condition in the piped exist operation.
* [Fix] failed unit tests.
* [Fix] semaphore usage on OSX.
* [Enhance] Optimize responses alloc/free in do_coll_piped_insert_bulk().
* [Enhance] Use separate command buffer size. default and maximum.
* [Enhance] Apply multi-value filtering to all filtering operations.
* [Other] extensive code refactoring.
2015-10-21 [version 1.7.4]
* Fix memory leak by deallcating a string vector gotten from ZK.
2015-06-22 [version 1.7.3]
* Change default poll timeout: 500 => 700 ms.
* Use 160 hash points per server when all servers have the same weight.
2015-02-01 [version 1.7.2]
* Fix smget error handling bug.
* Fix result_idx initialization bug in merge_results()
2014-11-13 [version 1.7.1]
* Disable registering client info in ZK ensemble.
* Modify the memcached.h file to include the arcus.h file.
* Make unit tests success in an environment that uses both IPv4 and IPv6.
* Revert to the orginal inteface of arcus_connect() function.
* Add ARCUS C Client User Guide Document.
2014-05-15
* arcus-c-client 1.7.0 is opened. (Apache License 2.0)