The size in bytes from object metadata of expiring objects are stored in
expirey queue entries under the content_type field.
The x-content-type-timestamp take from object metadata is provided along
with the x-content-type update so the container replicator resolves the
latest content-type and ensures eventual consistency.
UpgradeImpact: During rolling upgrades you should expect expirer queue
entries to continue lacking swift_expirer_bytes= annotations until ALL
object servers replicas have been upgraded to new code.
Co-Authored-By: Clay Gerrard <clay.gerrard@gmail.com>
Change-Id: Ie4b25f1bd16def4069878983049b83de06f68e54
We've been working toward separating our logger from our statsd client.
This is generally a good idea; it's always been a little weird to have
our special-case loggers that would allow you to *also* increment some
counters.
The end goal is to take a bunch of places that look like
logger = utils.get_logger(conf)
...
logger.info(...)
logger.increment(...)
and turn them into something more like
logger = logs.get_adapted_logger(conf)
stats = statsd_client.get_statsd_client(conf, logger=logger)
...
logger.info(...)
stats.increment(...)
Take a lesson from logging: callers don't need to know whether the
log_level is high enough that their message will be logged, or even
whether logging is enabled at all. Code wanting to emit stats shouldn't
need to know whether statsd collection has been configured, either.
Co-Authored-By: Alistair Coles <alistairncoles@gmail.com>
Change-Id: I6eb5b27a387cc2b7310ee11cc49d38fd2b6cbab8
Even if stdlib socket is probably patched by the time StatsdClient
creates a socket, we want to import the green socket module explicitly
for better testing.
Move test_statsd.py to test_statsd_client.py so it matches the naming
convention of the rest of our test files.
Fix some patching of utils in test_statsd_client to patch
statsd_client.
Rename some vars in test_statsd_client that shadowed the statsd_client
module name.
Move some utils tests out of test_statsd_client and back into
test_utils.
Related-Change: I4b5b12a3b0288b696a39903264741bc862a94ad7
Change-Id: I3de22b7f15dd386fa9c873587782f0dfc4c42a27
Adds ClosingMapper class which is like map() but closes the
iterable.
Co-Authored-By: Alistair Coles <alistairncoles@gmail.com>
Change-Id: Idd0ac21b365a138b065f01d05a257af62ea88177
This shouldn't impact real servers, as those processes were about to
wrap up anyway. It *can* cause some confusing behaviors in tests,
though.
Change-Id: Ifd8a64efcd3fc983596ba7cd9fe28eb9663c93d6
- Move statsd client into it's own module
- Move all logging functions into their own module
- Move all config functions into their own module
- Move all helper functions into their own module
Partial-Bug: #2015274
Change-Id: Ic4b5005e3efffa8dba17d91a41e46d5c68533f9a
If the global configuration option 'enable_open_expired' is set
to true in the config, then the client will be able to make a
request with the header 'x-open-expired' set to true in order
to access an object that has expired, provided it is in its
grace period. If this config flag is set to false, the client
will not be able to access any expired objects, even with the
header, which is the default behavior unless the flag is set.
When a client sets a 'x-open-expired' header to a true value for a
GET/HEAD/POST request the proxy will forward x-backend-open-expired to
storage server. The storage server will allow clients that set
x-backend-open-expired to open and read an object that has not yet
been reaped by the object-expirer, even after the x-delete-at time
has passed.
The header is always ignored when used with temporary URLs.
Co-Authored-By: Anish Kachinthaya <akachinthaya@nvidia.com>
Related-Change: I106103438c4162a561486ac73a09436e998ae1f0
Change-Id: Ibe7dde0e3bf587d77e14808b169c02f8fb3dddb3
The object expirer can be configured to delay the reaping of
objects from disk after their expiration time using account
and container level delay_reaping values. The delay_reaping
value of accounts and containers in seconds is configured in
the object server config. The object expirer references these
configured values to only reap objects from specified accounts
and containers after their corresponding delays.
The goal of the delay_reaping feature is to prevent accidental or
premature data loss if an object marked for deletion with the
'x-delete-at' feature should not be reaped immediately, for
whatever reason.
Configuring the delay_reaping value at a granular account and
container level is beneficial for being able to keep storage
capacity consumption in control while maintaining a desired
data recovery window.
This patch also adds a sample configuration, documentation, and
tests for bad configurations and grace period functionality.
Co-Authored-By: Anish Kachinthaya <akachinthaya@nvidia.com>
Change-Id: I106103438c4162a561486ac73a09436e998ae1f0
Add some test assertions to cover the first-byte timing metrics
introduced in the related change.
Add ttfb param to log_request docstring.
Change-Id: I530652dd672d7d4e5eac351ccbad318773414f7d
Related-Change: I1611e34846e586703e9d3709fa64e8df41f2d685
Previously, we relied on raising a swob.HTTPException from within a
wrapped wsgi.input and just hoping that it either
- comes uncaught all the way back through the pipeline, or at least
- gets translated back to a 422 response.
This was brittle, however; if any middleware between s3api and the
proxy took s3api's approach of turning unexpected responses into 500s,
for example, it all breaks down.
Take a cue from eventlet's Timeout and create a new s3api-specific
BaseException (which does *not* inherit from Exception) to improve
our ability to cut through all the layers.
Change-Id: I9924ff3b8d7d246631fe61b916823e028e2c01f2
We stuff the access key into the request path until we get back a
more-authoritative account name from auth. But it needs to be a WSGI
string when we do!
Closes-Bug: #2058748
Change-Id: I34adb8141cc9e62d17a27f01c63f40d1dd25991c
Any of these directories may get unlinked between when we saw them in
their parent's directory listing and when we go to descend.
Change-Id: I1dfc0ee1d9e70cb0600557cde980bd5880bd40b3
This change allows individual SLO segments to be downloaded by adding
an extra 'part-number' query parameter to the GET request. You can
also retrieve the Content-Length of an individual segment with a HEAD
request.
Co-Authored-By: Clay Gerrard <clay.gerrard@gmail.com>
Co-Authored-By: Alistair Coles <alistairncoles@gmail.com>
Change-Id: I7af0dc9898ca35f042b52dd5db000072f2c7512e
Add support for a backend_ratelimit_conf_path option in the
[filter:backend_ratelimit] config. If specified then the middleware
will give precedence to config options from that file over config
options from the [filter:backend_ratelimit] section.
The path defaults to /etc/swift/backend-ratelimit.conf.
The config file is periodically reloaded and any changed options are
applied. The middleware will log a warning the first time it fails to
load a config file that had previously been successfully loaded. The
middleware also logs at info level when it first successfully loads a
config file that had previously failed to be loaded. Otherwise, the
middleware will log when a config file is loaded that results in the
config being changed.
Change-Id: I6554e37c6ab5b0a260f99b54169cb90ab5718f81
Currently when the memcachering `_get_conns` method runs out of memcached
servers to try and so fails to yield anything we log a:
All memcached servers error-limited
However, this error message isn't entirely accurate. It can also fail
because it failed to connect all it's memcached servers not just because
they're error limited.
You can disable error-limiting of memcached servers. So in this case
this error message is a red-herring.
Downstream we use a mcrouter client on each node which itself talks to a
bunch of memcache servers. Therefore in swift's memcachering client we
only configure the 1 mcrouter client as a single server in the ring.
Because of this we disable memcached error-limiting.
If the node gets too overloaded we've had timeouts talking to the local
mcrouter client. This fires off error-limitted log messages which can
confuse things.
Because it's possible to turn off error-limiting, the log line isn't
quite adequate anymore. So this patch changes it to:
No more memcached servers to try
Change-Id: I97fb4f3ee2ac45831aae14a782b2c6dc73e82d85
Currently, when object-server serves GET request and DiskFile
reader iterate over disk file chunks, there is no explicit
eventlet sleep called. When network outpace the slow disk IO,
it's possible one large and slow GET request could cause
eventlet hub not to schedule any other green threads for a
long period of time. To improve this, this patch add a
configurable sleep parameter into DiskFile reader, which
is 'cooperative_period' with a default value of 0 (disabled).
Co-Authored-By: Clay Gerrard <clay.gerrard@gmail.com>
Change-Id: I80b04bad0601b6cd6caef35498f89d4ba70a4fd4
The existing test fails on macOS because the value of errno.ENODATA is
platform dependent. On macOS ENODATA is 96:
% man 2 intro|grep ENODATA
96 ENODATA No message available.
Change-Id: Ibc760e641d4351ed771f2321dba27dc4e5b367c1
