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swift /etc /account-server.conf-sample

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[DEFAULT]
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# bind_ip = 0.0.0.0
# bind_port = 6002
# backlog = 4096
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# workers = 1
# user = swift
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# swift_dir = /etc/swift
# devices = /srv/node
# mount_check = true
# disable_fallocate = false
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# You can specify default log routing here if you want:
# log_name = swift
# log_facility = LOG_LOCAL0
# log_level = INFO
# log_address = /dev/log
# comma separated list of functions to call to setup custom log handlers.
# functions get passed: conf, name, log_to_console, log_route, fmt, logger,
# adapted_logger
# log_custom_handlers =
Upating proxy-server StatsD logging. Removed many StatsD logging calls in proxy-server and added swift-informant-style catch-all logging in the proxy-logger middleware. Many errors previously rolled into the "proxy-server.<type>.errors" counter will now appear broken down by response code and with timing data at: "proxy-server.<type>.<verb>.<status>.timing". Also, bytes transferred (sum of in + out) will be at: "proxy-server.<type>.<verb>.<status>.xfer". The proxy-logging middleware can get its StatsD config from standard vars in [DEFAULT] or from access_log_statsd_* config vars in its config section. Similarly to Swift Informant, request methods ("verbs") are filtered using the new proxy-logging config var, "log_statsd_valid_http_methods" which defaults to GET, HEAD, POST, PUT, DELETE, and COPY. Requests with methods not in this list use "BAD_METHOD" for <verb> in the metric name. To avoid user error, access_log_statsd_valid_http_methods is also accepted. Previously, proxy-server metrics used "Account", "Container", and "Object" for the <type>, but these are now all lowercase. Updated the admin guide's StatsD docs to reflect the above changes and also include the "proxy-server.<type>.handoff_count" and "proxy-server.<type>.handoff_all_count" metrics. The proxy server now saves off the original req.method and proxy_logging will use this if it can (both for request logging and as the "<verb>" in the statsd timing metric). This fixes bug 1025433. Removed some stale access_log_* related code in proxy/server.py. Also removed the BaseApplication/Application distinction as it's no longer necessary. Fixed up the sample config files a bit (logging lines, mostly). Fixed typo in SAIO development guide. Got proxy_logging.py test coverage to 100%. Fixed proxy_logging.py for PEP8 v1.3.2. Enhanced test.unit.FakeLogger to track more calls to enable testing StatsD metric calls. Change-Id: I45d94cb76450be96d66fcfab56359bdfdc3a2576
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# If set, log_udp_host will override log_address
# log_udp_host =
# log_udp_port = 514
# You can enable StatsD logging here:
Adding StatsD logging to Swift. Documentation, including a list of metrics reported and their semantics, is in the Admin Guide in a new section, "Reporting Metrics to StatsD". An optional "metric prefix" may be configured which will be prepended to every metric name sent to StatsD. Here is the rationale for doing a deep integration like this versus only sending metrics to StatsD in middleware. It's the only way to report some internal activities of Swift in a real-time manner. So to have one way of reporting to StatsD and one place/style of configuration, even some things (like, say, timing of PUT requests into the proxy-server) which could be logged via middleware are consistently logged the same way (deep integration via the logger delegate methods). When log_statsd_host is configured, get_logger() injects a swift.common.utils.StatsdClient object into the logger as logger.statsd_client. Then a set of delegate methods on LogAdapter either pass through to the StatsdClient object or become no-ops. This allows StatsD logging to look like: self.logger.increment('some.metric.here') and do the right thing in all cases and with no messy conditional logic. I wanted to use the pystatsd module for the StatsD client, but the version on PyPi is lagging the git repo (and is missing both the prefix functionality and timing_since() method). So I wrote my swift.common.utils.StatsdClient. The interface is the same as pystatsd.Client, but the code was written from scratch. It's pretty simple, and the tests I added cover it. This also frees Swift from an optional dependency on the pystatsd module, making this feature easier to enable. There's test coverage for the new code and all existing tests continue to pass. Refactored out _one_audit_pass() method in swift/account/auditor.py and swift/container/auditor.py. Fixed some misc. PEP8 violations. Misc test cleanups and refactorings (particularly the way "fake logging" is handled). Change-Id: Ie968a9ae8771f59ee7591e2ae11999c44bfe33b2
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# log_statsd_host = localhost
# log_statsd_port = 8125
# log_statsd_default_sample_rate = 1
# log_statsd_metric_prefix =
!! Changed db_preallocation to False Long explanation, but hopefully answers any questions. We don't like changing the default behavior of Swift unless there's a really good reason and, up until now, I've tried doing this with this new db_preallocation setting. For clusters with dedicated account/container servers that usually have fewer disks overall but SSD for speed, having db_preallocation on will gobble up disk space quite quickly and the fragmentation it's designed to fight isn't that big a speed impact to SSDs anyway. For clusters with account/container servers spread across all servers along with object servers usually having standard disks for cost, having db_preallocation off will cause very fragmented database files impacting speed, sometimes dramatically. Weighing these two negatives, it seems the second is the lesser evil. The first can cause disks to fill up and disable the cluster. The second will cause performance degradation, but the cluster will still function. Furthermore, if just one piece of code that touches all databases runs with db_preallocation on, it's effectively on for the whole cluster. We discovered this most recently when we finally configured everything within the Swift codebase to have db_preallocation off, only to find out Slogging didn't know about the new setting and so ran with it on and starting filling up SSDs. So that's why I'm proposing this change to the default behavior. We will definitely need to post a prominent notice of this change with the next release. Change-Id: I48a43439264cff5d03c14ec8787f718ee44e78ea
2012年05月22日 00:30:47 +00:00
# If you don't mind the extra disk space usage in overhead, you can turn this
# on to preallocate disk space with SQLite databases to decrease fragmentation.
# db_preallocation = off
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[pipeline:main]
pipeline = healthcheck recon account-server
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[app:account-server]
use = egg:swift#account
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# You can override the default log routing for this app here:
# set log_name = account-server
# set log_facility = LOG_LOCAL0
# set log_level = INFO
# set log_requests = True
# set log_address = /dev/log
# auto_create_account_prefix = .
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[filter:healthcheck]
use = egg:swift#healthcheck
# An optional filesystem path, which if present, will cause the healthcheck
# URL to return "503 Service Unavailable" with a body of "DISABLED BY FILE"
# disable_path =
[filter:recon]
use = egg:swift#recon
# recon_cache_path = /var/cache/swift
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[account-replicator]
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# You can override the default log routing for this app here (don't use set!):
# log_name = account-replicator
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# log_facility = LOG_LOCAL0
# log_level = INFO
# log_address = /dev/log
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# vm_test_mode = no
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# per_diff = 1000
# max_diffs = 100
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# concurrency = 8
# interval = 30
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# How long without an error before a node's error count is reset. This will
# also be how long before a node is reenabled after suppression is triggered.
# error_suppression_interval = 60
# How many errors can accumulate before a node is temporarily ignored.
# error_suppression_limit = 10
# node_timeout = 10
# conn_timeout = 0.5
# The replicator also performs reclamation
# reclaim_age = 604800
# Time in seconds to wait between replication passes
# run_pause = 30
# recon_cache_path = /var/cache/swift
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[account-auditor]
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# You can override the default log routing for this app here (don't use set!):
# log_name = account-auditor
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# log_facility = LOG_LOCAL0
# log_level = INFO
# log_address = /dev/log
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# Will audit, at most, 1 account per device per interval
# interval = 1800
# log_facility = LOG_LOCAL0
# log_level = INFO
# recon_cache_path = /var/cache/swift
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[account-reaper]
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# You can override the default log routing for this app here (don't use set!):
# log_name = account-reaper
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# log_facility = LOG_LOCAL0
# log_level = INFO
# log_address = /dev/log
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# concurrency = 25
# interval = 3600
# node_timeout = 10
# conn_timeout = 0.5
# Normally, the reaper begins deleting account information for deleted accounts
# immediately; you can set this to delay its work however. The value is in
# seconds; 2592000 = 30 days for example.
# delay_reaping = 0