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Diffstat (limited to 'releasenotes/notes/2_18_0_release-3acf63cfe2475c65.yaml')
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1 files changed, 85 insertions, 0 deletions
diff --git a/releasenotes/notes/2_18_0_release-3acf63cfe2475c65.yaml b/releasenotes/notes/2_18_0_release-3acf63cfe2475c65.yaml new file mode 100644 index 000000000..1b98c4810 --- /dev/null +++ b/releasenotes/notes/2_18_0_release-3acf63cfe2475c65.yaml @@ -0,0 +1,85 @@ +--- +features: + - | + Added container sharding, an operator controlled feature that + may be used to shard very large container databases into a + number of smaller shard containers. This mitigates the issues + with one large DB by distributing the data across multiple + smaller databases throughout the cluster. Please read the full + overview at + https://docs.openstack.org/swift/latest/overview_container_sharding.html + + - | + Provide an S3 API compatibility layer. The external "swift3" + project has been imported into Swift's codebase as the "s3api" + middleware. + + - | + Added "emergency mode" hooks in the account and container replicators. + These options may be used to prioritize moving handoff + partitions to primary locations more quickly. This helps when + adding capacity to a ring. + + - Added ``-d <devs>`` and ``-p <partitions>`` command line options. + + - Added a handoffs-only mode. + + - | + Add a multiprocess mode to the object replicator. Setting the + ``replicator_workers`` setting to a positive value N will result + in the replicator using up to N worker processes to perform + replication tasks. At most one worker per disk will be spawned. + + Worker process logs will have a bit of information prepended so + operators can tell which messages came from which worker. The + prefix is "[worker M/N pid=P] ", where M is the worker's index, + N is the total number of workers, and P is the process ID. Every + message from the replicator's logger will have the prefix + + - | + The object reconstructor will now fork all available worker + processes when operating on a subset of local devices. + + - | + Add support for PROXY protocol v1 to the proxy server. This + allows the Swift proxy server to log accurate client IP + addresses when there is a proxy or SSL-terminator between the + client and the Swift proxy server. Example servers supporting + this PROXY protocol include stunnel, haproxy, hitch, and + varnish. See the sample proxy server config file for the + appropriate config setting to enable or disable this + functionality. + + - | + In the ratelimit middleware, account whitelist and blacklist + settings have been deprecated and may be removed in a future + release. When found, a deprecation message will be logged. + Instead of these config file values, set X-Account-Sysmeta- + Global-Write-Ratelimit:WHITELIST and X-Account-Sysmeta-Global- + Write-Ratelimit:BLACKLIST on the particular accounts that need + to be whitelisted or blacklisted. System metadata cannot be added + or modified by standard clients. Use the internal client to set sysmeta. + + - | + Add a ``--drop-prefixes`` flag to swift-account-info, + swift-container-info, and swift-object-info. This makes the + output between the three more consistent. + + - | + statsd error messages correspond to 5xx responses only. This + makes monitoring more useful because actual errors (5xx) will + not be hidden by common user requests (4xx). Previously, some 4xx + responses would be included in timing information in the statsd + error messages. + + - | + Truncate error logs to prevent log handler from running out of buffer. + + - | + Updated requirements.txt to match global exclusions and formatting. + + - | + tempauth user names now support unicode characters. + + - | + Various other minor bug fixes and improvements. |