nginx-amplify-agent/amplify/agent/collectors/plus/status.py

76 lines
2.4 KiB
Python

# -*- coding: utf-8 -*-
from amplify.agent.collectors.plus.abstract import PlusStatusCollector
from amplify.agent.collectors.plus.util.status.cache import CACHE_COLLECT_INDEX
from amplify.agent.collectors.plus.util.status.slab import SLAB_COLLECT_INDEX
from amplify.agent.collectors.plus.util.status.status_zone import (
STATUS_ZONE_COLLECT_INDEX
)
from amplify.agent.collectors.plus.util.status.stream import (
STREAM_COLLECT_INDEX
)
from amplify.agent.collectors.plus.util.status.stream_upstream import (
STREAM_UPSTREAM_PEER_COLLECT_INDEX,
STREAM_UPSTREAM_COLLECT_INDEX
)
from amplify.agent.collectors.plus.util.status.upstream import (
UPSTREAM_PEER_COLLECT_INDEX,
UPSTREAM_COLLECT_INDEX
)
__author__ = "Grant Hulegaard"
__copyright__ = "Copyright (C) Nginx, Inc. All rights reserved."
__license__ = ""
__maintainer__ = "Grant Hulegaard"
__email__ = "grant.hulegaard@nginx.com"
class CacheCollector(PlusStatusCollector):
short_name = 'plus_cache'
collect_index = CACHE_COLLECT_INDEX
class StatusZoneCollector(PlusStatusCollector):
short_name = 'plus_status_zone'
collect_index = STATUS_ZONE_COLLECT_INDEX
class UpstreamCollector(PlusStatusCollector):
short_name = 'plus_upstream'
collect_index = UPSTREAM_PEER_COLLECT_INDEX
additional_collect_index = UPSTREAM_COLLECT_INDEX
def collect_from_data(self, data, stamp):
"""
Aggregates all peer metrics as a single "upstream" entity.
"""
# data.get('peers', data) is a workaround for supporting an old N+ format
# http://nginx.org/en/docs/http/ngx_http_status_module.html#compatibility
peers = data.get('peers', data) if isinstance(data, dict) else data
for peer in peers:
super(UpstreamCollector, self).collect_from_data(peer, stamp)
for method in self.additional_collect_index:
method(self, data, stamp)
try:
self.finalize_latest()
except Exception as e:
self.handle_exception(self.finalize_latest, e)
class SlabCollector(PlusStatusCollector):
short_name = 'plus_slab'
collect_index = SLAB_COLLECT_INDEX
class StreamCollector(StatusZoneCollector):
short_name = 'plus_stream'
collect_index = STREAM_COLLECT_INDEX
class StreamUpstreamCollector(UpstreamCollector):
short_name = 'plus_stream_upstream'
collect_index = STREAM_UPSTREAM_PEER_COLLECT_INDEX
additional_collect_index = STREAM_UPSTREAM_COLLECT_INDEX