Closed leandrocurioso closed 11 months ago
suniltheta
commented
11 months ago Same as https://github.com/envoyproxy/envoy/issues/31037
This was a behavior change introduced in v1.26. Which Envoy version are you using? If it is v1.26 or v1.27 then your can set envoy.reloadable_features_successful_active_health_check_uneject_host to false. Or if it is v1.28+ then see the Note in https://www.envoyproxy.io/docs/envoy/v1.28.0/intro/arch_overview/upstream/outlier.html#grpc
leandrocurioso
commented
11 months ago I am using 1.27.1 but this setting is not available. @suniltheta
As mentioned here: [https://www.envoyproxy.io/docs/envoy/v1.27.1/intro/arch_overview/upstream/outlier.html#grpc]()
Is it possible in that version to configure so the active health check do not mess with the outlier?
suniltheta
commented
11 months ago in v1.27.1 you would have to set the feature flag envoy.reloadable_features_successful_active_health_check_uneject_host to false.
https://github.com/envoyproxy/envoy/blob/v1.27.1/source/common/runtime/runtime_features.cc#L77
leandrocurioso
commented
11 months ago How do I add this config in the file? Should be at cluster level? @suniltheta
suniltheta
commented
11 months ago Do you include runtime (feature flags) in your configuration? https://www.envoyproxy.io/docs/envoy/latest/configuration/operations/runtime.html
One way to include is add it in static bootstrap file. Below is a sample
layeredRuntime:
layers:
- name: static_layer_0
staticLayer:
envoy.reloadable_features.successful_active_health_check_uneject_host: false
- adminLayer: {}
name: admin_layerIt worked! Thanks a lot for your help =]
leandrocurioso
commented
11 months ago I added this config and is respecting the base time but as the endpoint keeps receiving 500 the total ejection time is not being multiplied.
For instance I have bass time equal to 30s and max ejection to 300s.
If the endpoint is ejected the first time it should respect the base time so 30s. (This is working fine) but for the next ejection should be 30sx2=60s. But this is not being respected, the ejection time keep being 60s. Am I missing something? @suniltheta
suniltheta
commented
11 months ago May be this is a bug that has to be looked into. Can you confirm if this was working prior to v1.26.0? Dose the ejection time increase when Active health check is disabled?
Can you update the title and the description to capture the new issue that you identified?
leandrocurioso
commented
11 months ago I will make a test and return here.
leandrocurioso
commented
11 months ago @suniltheta
I enabled outlier logging and I believe this is not working properly for the versions below:
The property secs_since_last_action says everything!
2023-11-28 17:17:20 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"EJECT","num_ejections":1,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:17:18.045Z"}
2023-11-28 17:18:20 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"UNEJECT","num_ejections":1,"enforced":false,"timestamp":"2023-11-28T20:18:18.984Z","secs_since_last_action":"60"}
2023-11-28 17:18:30 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"EJECT","num_ejections":2,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:18:22.781Z","secs_since_last_action":"3"}
2023-11-28 17:19:30 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"UNEJECT","num_ejections":2,"enforced":false,"timestamp":"2023-11-28T20:19:23.022Z","secs_since_last_action":"60"}
2023-11-28 17:19:30 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"EJECT","num_ejections":3,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:19:25.035Z","secs_since_last_action":"2"}
2023-11-28 17:20:30 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"UNEJECT","num_ejections":3,"enforced":false,"timestamp":"2023-11-28T20:20:25.045Z","secs_since_last_action":"60"}
2023-11-28 17:20:30 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.80.2:80](http://192.168.80.2/)","action":"EJECT","num_ejections":4,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:20:29.033Z","secs_since_last_action":"3"}2023-11-28 17:22:35 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"EJECT","num_ejections":1,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:22:34.146Z"}
2023-11-28 17:23:35 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"UNEJECT","num_ejections":1,"enforced":false,"timestamp":"2023-11-28T20:23:34.589Z","secs_since_last_action":"60"}
2023-11-28 17:23:45 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"EJECT","num_ejections":2,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:23:38.143Z","secs_since_last_action":"3"}
2023-11-28 17:24:45 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"UNEJECT","num_ejections":2,"enforced":false,"timestamp":"2023-11-28T20:24:38.622Z","secs_since_last_action":"60"}
2023-11-28 17:24:45 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"EJECT","num_ejections":3,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:24:42.138Z","secs_since_last_action":"3"}
2023-11-28 17:25:45 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"UNEJECT","num_ejections":3,"enforced":false,"timestamp":"2023-11-28T20:25:42.652Z","secs_since_last_action":"60"}
2023-11-28 17:25:55 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"EJECT","num_ejections":4,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:25:46.140Z","secs_since_last_action":"3"}
2023-11-28 17:26:55 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"UNEJECT","num_ejections":4,"enforced":false,"timestamp":"2023-11-28T20:26:46.690Z","secs_since_last_action":"60"}
2023-11-28 17:26:55 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.96.3:80](http://192.168.96.3/)","action":"EJECT","num_ejections":5,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:26:50.140Z","secs_since_last_action":"3"}2023-11-28 17:29:58 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"EJECT","num_ejections":1,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:29:55.520Z"}
2023-11-28 17:30:58 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"UNEJECT","num_ejections":1,"enforced":false,"timestamp":"2023-11-28T20:30:56.272Z","secs_since_last_action":"60"}
2023-11-28 17:31:08 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"EJECT","num_ejections":2,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:30:59.494Z","secs_since_last_action":"3"}
2023-11-28 17:32:08 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"UNEJECT","num_ejections":2,"enforced":false,"timestamp":"2023-11-28T20:32:00.297Z","secs_since_last_action":"60"}
2023-11-28 17:32:08 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"EJECT","num_ejections":3,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:32:03.860Z","secs_since_last_action":"3"}
2023-11-28 17:33:08 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"UNEJECT","num_ejections":3,"enforced":false,"timestamp":"2023-11-28T20:33:04.329Z","secs_since_last_action":"60"}
2023-11-28 17:33:08 {"type":"CONSECUTIVE_5XX","cluster_name":"sample-shard","upstream_url":"[192.168.112.5:80](http://192.168.112.5/)","action":"EJECT","num_ejections":4,"enforced":true,"eject_consecutive_event":{},"timestamp":"2023-11-28T20:33:07.483Z","secs_since_last_action":"3"}So this bug has nothing to do with having active health check uneject outlier detection ejected hosts. Checking if disabling active health check will also run into this issue?
I need to look into code myself to see where the bug is. I am not sure who is the expert in Envoy health check, who can quickly identify if this is a known issue or new one.
leandrocurioso
commented
11 months ago I will remove active health check and see if this still happens.
leandrocurioso
commented
11 months ago @suniltheta @cpakulski
Even with no active health check the behaviour persists.
I think can be something here: https://github.com/envoyproxy/envoy/blob/v1.27.1/source/common/upstream/outlier_detection_impl.cc#L354
cpakulski
commented
11 months ago @leandrocurioso Can you dump config to make sure that max ejection time is not capped to 60 secs?
leandrocurioso
commented
11 months ago @cpakulski thanks for getting envolved.
{
"configs": [
{
"@type": "type.googleapis.com/envoy.admin.v3.BootstrapConfigDump",
"bootstrap": {
"node": {
"id": "1",
"cluster": "cell-1",
"user_agent_name": "envoy",
"user_agent_build_version": {
"version": {
"major_number": 1,
"minor_number": 27,
"patch": 1
},
"metadata": {
"ssl.version": "BoringSSL",
"revision.status": "Clean",
"build.type": "RELEASE",
"revision.sha": "6b9db09c69965d5bfb37bdd29693f8b7f9e9e9ec"
}
},
"extensions": [
{
"name": "envoy.filters.thrift.header_to_metadata",
"category": "envoy.thrift_proxy.filters",
"type_urls": [
"envoy.extensions.filters.network.thrift_proxy.filters.header_to_metadata.v3.HeaderToMetadata"
]
},
{
"name": "envoy.filters.thrift.payload_to_metadata",
"category": "envoy.thrift_proxy.filters",
"type_urls": [
"envoy.extensions.filters.network.thrift_proxy.filters.payload_to_metadata.v3.PayloadToMetadata"
]
},
{
"name": "envoy.filters.thrift.rate_limit",
"category": "envoy.thrift_proxy.filters",
"type_urls": [
"envoy.extensions.filters.network.thrift_proxy.filters.ratelimit.v3.RateLimit"
]
},
{
"name": "envoy.filters.thrift.router",
"category": "envoy.thrift_proxy.filters",
"type_urls": [
"envoy.extensions.filters.network.thrift_proxy.router.v3.Router"
]
},
{
"name": "envoy.filters.listener.http_inspector",
"category": "envoy.filters.listener",
"type_urls": [
"envoy.extensions.filters.listener.http_inspector.v3.HttpInspector"
]
},
{
"name": "envoy.filters.listener.local_ratelimit",
"category": "envoy.filters.listener",
"type_urls": [
"envoy.extensions.filters.listener.local_ratelimit.v3.LocalRateLimit"
]
},
{
"name": "envoy.filters.listener.original_dst",
"category": "envoy.filters.listener",
"type_urls": [
"envoy.extensions.filters.listener.original_dst.v3.OriginalDst"
]
},
{
"name": "envoy.filters.listener.original_src",
"category": "envoy.filters.listener",
"type_urls": [
"envoy.extensions.filters.listener.original_src.v3.OriginalSrc"
]
},
{
"name": "envoy.filters.listener.proxy_protocol",
"category": "envoy.filters.listener",
"type_urls": [
"envoy.extensions.filters.listener.proxy_protocol.v3.ProxyProtocol"
]
},
{
"name": "envoy.filters.listener.tls_inspector",
"category": "envoy.filters.listener",
"type_urls": [
"envoy.extensions.filters.listener.tls_inspector.v3.TlsInspector"
]
},
{
"name": "envoy.listener.http_inspector",
"category": "envoy.filters.listener"
},
{
"name": "envoy.listener.original_dst",
"category": "envoy.filters.listener"
},
{
"name": "envoy.listener.original_src",
"category": "envoy.filters.listener"
},
{
"name": "envoy.listener.proxy_protocol",
"category": "envoy.filters.listener"
},
{
"name": "envoy.listener.tls_inspector",
"category": "envoy.filters.listener"
},
{
"name": "envoy.matching.common_inputs.environment_variable",
"category": "envoy.matching.common_inputs",
"type_urls": [
"envoy.extensions.matching.common_inputs.environment_variable.v3.Config"
]
},
{
"name": "envoy.path.rewrite.uri_template.uri_template_rewriter",
"category": "envoy.path.rewrite",
"type_urls": [
"envoy.extensions.path.rewrite.uri_template.v3.UriTemplateRewriteConfig"
]
},
{
"name": "envoy.extensions.upstreams.http.v3.HttpProtocolOptions",
"category": "envoy.upstream_options",
"type_urls": [
"envoy.extensions.upstreams.http.v3.HttpProtocolOptions"
]
},
{
"name": "envoy.extensions.upstreams.tcp.v3.TcpProtocolOptions",
"category": "envoy.upstream_options",
"type_urls": [
"envoy.extensions.upstreams.tcp.v3.TcpProtocolOptions"
]
},
{
"name": "envoy.upstreams.http.http_protocol_options",
"category": "envoy.upstream_options"
},
{
"name": "envoy.upstreams.tcp.tcp_protocol_options",
"category": "envoy.upstream_options"
},
{
"name": "envoy.dog_statsd",
"category": "envoy.stats_sinks"
},
{
"name": "envoy.graphite_statsd",
"category": "envoy.stats_sinks"
},
{
"name": "envoy.metrics_service",
"category": "envoy.stats_sinks"
},
{
"name": "envoy.open_telemetry_stat_sink",
"category": "envoy.stats_sinks"
},
{
"name": "envoy.stat_sinks.dog_statsd",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.config.metrics.v3.DogStatsdSink"
]
},
{
"name": "envoy.stat_sinks.graphite_statsd",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.extensions.stat_sinks.graphite_statsd.v3.GraphiteStatsdSink"
]
},
{
"name": "envoy.stat_sinks.hystrix",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.config.metrics.v3.HystrixSink"
]
},
{
"name": "envoy.stat_sinks.metrics_service",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.config.metrics.v3.MetricsServiceConfig"
]
},
{
"name": "envoy.stat_sinks.open_telemetry",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.extensions.stat_sinks.open_telemetry.v3.SinkConfig"
]
},
{
"name": "envoy.stat_sinks.statsd",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.config.metrics.v3.StatsdSink"
]
},
{
"name": "envoy.stat_sinks.wasm",
"category": "envoy.stats_sinks",
"type_urls": [
"envoy.extensions.stat_sinks.wasm.v3.Wasm"
]
},
{
"name": "envoy.statsd",
"category": "envoy.stats_sinks"
},
{
"name": "envoy.transport_sockets.alts",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.alts.v3.Alts"
]
},
{
"name": "envoy.transport_sockets.http_11_proxy",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.http_11_proxy.v3.Http11ProxyUpstreamTransport"
]
},
{
"name": "envoy.transport_sockets.internal_upstream",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.internal_upstream.v3.InternalUpstreamTransport"
]
},
{
"name": "envoy.transport_sockets.quic",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.quic.v3.QuicUpstreamTransport"
]
},
{
"name": "envoy.transport_sockets.raw_buffer",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.raw_buffer.v3.RawBuffer"
]
},
{
"name": "envoy.transport_sockets.starttls",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.starttls.v3.UpstreamStartTlsConfig"
]
},
{
"name": "envoy.transport_sockets.tap",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.tap.v3.Tap"
]
},
{
"name": "envoy.transport_sockets.tcp_stats",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.tcp_stats.v3.Config"
]
},
{
"name": "envoy.transport_sockets.tls",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext"
]
},
{
"name": "envoy.transport_sockets.upstream_proxy_protocol",
"category": "envoy.transport_sockets.upstream",
"type_urls": [
"envoy.extensions.transport_sockets.proxy_protocol.v3.ProxyProtocolUpstreamTransport"
]
},
{
"name": "raw_buffer",
"category": "envoy.transport_sockets.upstream"
},
{
"name": "starttls",
"category": "envoy.transport_sockets.upstream"
},
{
"name": "tls",
"category": "envoy.transport_sockets.upstream"
},
{
"name": "envoy.load_balancing_policies.cluster_provided",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.cluster_provided.v3.ClusterProvided"
]
},
{
"name": "envoy.load_balancing_policies.least_request",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.least_request.v3.LeastRequest"
]
},
{
"name": "envoy.load_balancing_policies.maglev",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.maglev.v3.Maglev"
]
},
{
"name": "envoy.load_balancing_policies.random",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.random.v3.Random"
]
},
{
"name": "envoy.load_balancing_policies.ring_hash",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.ring_hash.v3.RingHash"
]
},
{
"name": "envoy.load_balancing_policies.round_robin",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.round_robin.v3.RoundRobin"
]
},
{
"name": "envoy.load_balancing_policies.subset",
"category": "envoy.load_balancing_policies",
"type_urls": [
"envoy.extensions.load_balancing_policies.subset.v3.Subset"
]
},
{
"name": "envoy.http.header_validators.envoy_default",
"category": "envoy.http.header_validators",
"type_urls": [
"envoy.extensions.http.header_validators.envoy_default.v3.HeaderValidatorConfig"
]
},
{
"name": "envoy.filters.connection_pools.tcp.generic",
"category": "envoy.upstreams",
"type_urls": [
"envoy.extensions.upstreams.tcp.generic.v3.GenericConnectionPoolProto"
]
},
{
"name": "dubbo.hessian2",
"category": "envoy.dubbo_proxy.serializers"
},
{
"name": "envoy.health_checkers.grpc",
"category": "envoy.health_checkers",
"type_urls": [
"envoy.config.core.v3.HealthCheck.GrpcHealthCheck"
]
},
{
"name": "envoy.health_checkers.http",
"category": "envoy.health_checkers",
"type_urls": [
"envoy.config.core.v3.HealthCheck.HttpHealthCheck"
]
},
{
"name": "envoy.health_checkers.redis",
"category": "envoy.health_checkers",
"type_urls": [
"envoy.extensions.health_checkers.redis.v3.Redis"
]
},
{
"name": "envoy.health_checkers.tcp",
"category": "envoy.health_checkers",
"type_urls": [
"envoy.config.core.v3.HealthCheck.TcpHealthCheck"
]
},
{
"name": "envoy.health_checkers.thrift",
"category": "envoy.health_checkers",
"type_urls": [
"envoy.extensions.health_checkers.thrift.v3.Thrift"
]
},
{
"name": "envoy.matching.inputs.cel_data_input",
"category": "envoy.matching.http.input",
"type_urls": [
"xds.type.matcher.v3.HttpAttributesCelMatchInput"
]
},
{
"name": "envoy.matching.inputs.destination_ip",
"category": "envoy.matching.http.input",
"type_urls": [
"envoy.extensions.matching.common_inputs.network.v3.DestinationIPInput"
]
},
{
"name": "envoy.matching.inputs.destination_port",
"category": "envoy.matching.http.input",
"type_urls": [
"envoy.extensions.matching.common_inputs.network.v3.DestinationPortInput"
]
},
{
"name": "envoy.matching.inputs.direct_source_ip",
"category": "envoy.matching.http.input",
"type_urls": [
"envoy.extensions.matching.common_inputs.network.v3.DirectSourceIPInput"
]
},
{
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"envoy.extensions.compression.zstd.compressor.v3.Zstd"
]
},
{
"name": "envoy.regex_engines.google_re2",
"category": "envoy.regex_engines",
"type_urls": [
"envoy.extensions.regex_engines.v3.GoogleRE2"
]
},
{
"name": "envoy.http.stateful_session.cookie",
"category": "envoy.http.stateful_session",
"type_urls": [
"envoy.extensions.http.stateful_session.cookie.v3.CookieBasedSessionState"
]
},
{
"name": "envoy.http.stateful_session.header",
"category": "envoy.http.stateful_session",
"type_urls": [
"envoy.extensions.http.stateful_session.header.v3.HeaderBasedSessionState"
]
},
{
"name": "envoy.route.early_data_policy.default",
"category": "envoy.route.early_data_policy",
"type_urls": [
"envoy.extensions.early_data.v3.DefaultEarlyDataPolicy"
]
}
]
},
"static_resources": {
"clusters": [
{
"name": "xds_cluster",
"type": "STRICT_DNS",
"load_assignment": {
"cluster_name": "xds_cluster",
"endpoints": [
{
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "host.docker.internal",
"port_value": 18000
}
}
}
}
]
}
]
},
"typed_extension_protocol_options": {
"envoy.extensions.upstreams.http.v3.HttpProtocolOptions": {
"@type": "type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions",
"explicit_http_config": {
"http2_protocol_options": {}
}
}
}
}
]
},
"dynamic_resources": {
"lds_config": {
"ads": {},
"resource_api_version": "V3"
},
"cds_config": {
"ads": {},
"resource_api_version": "V3"
},
"ads_config": {
"api_type": "DELTA_GRPC",
"grpc_services": [
{
"envoy_grpc": {
"cluster_name": "xds_cluster"
}
}
],
"transport_api_version": "V3"
}
},
"cluster_manager": {
"outlier_detection": {
"event_log_path": "/dev/stdout"
}
},
"admin": {
"address": {
"socket_address": {
"address": "0.0.0.0",
"port_value": 9901
}
}
},
"layered_runtime": {
"layers": [
{
"name": "static_layer_0",
"static_layer": {
"envoy.reloadable_features.successful_active_health_check_uneject_host": false
}
}
]
}
},
"last_updated": "2023-11-29T18:15:12.426Z"
},
{
"@type": "type.googleapis.com/envoy.admin.v3.ClustersConfigDump",
"version_info": "2023-11-29T15:15:17-03:00",
"static_clusters": [
{
"cluster": {
"@type": "type.googleapis.com/envoy.config.cluster.v3.Cluster",
"name": "xds_cluster",
"type": "STRICT_DNS",
"load_assignment": {
"cluster_name": "xds_cluster",
"endpoints": [
{
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "host.docker.internal",
"port_value": 18000
}
}
}
}
]
}
]
},
"typed_extension_protocol_options": {
"envoy.extensions.upstreams.http.v3.HttpProtocolOptions": {
"@type": "type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions",
"explicit_http_config": {
"http2_protocol_options": {}
}
}
}
},
"last_updated": "2023-11-29T18:15:12.448Z"
}
],
"dynamic_active_clusters": [
{
"version_info": "4c29bced2492cb08fcb34b31886c68bdf73e9e739b902e7d8c09335d97ad96e4",
"cluster": {
"@type": "type.googleapis.com/envoy.config.cluster.v3.Cluster",
"name": "sample-shard",
"type": "STRICT_DNS",
"health_checks": [
{
"timeout": "10s",
"interval": "5s",
"unhealthy_threshold": 5,
"healthy_threshold": 2,
"reuse_connection": false,
"http_health_check": {
"path": "/"
},
"no_traffic_interval": "5s",
"event_log_path": "/dev/stdout",
"always_log_health_check_failures": true
}
],
"circuit_breakers": {
"thresholds": [
{
"max_connections": 1024,
"max_pending_requests": 1024,
"max_requests": 1024,
"max_retries": 3
}
]
},
"dns_lookup_family": "V4_ONLY",
"outlier_detection": {
"consecutive_5xx": 2,
"interval": "1s",
"base_ejection_time": "60s",
"max_ejection_percent": 100,
"max_ejection_time": "120s"
},
"common_lb_config": {
"healthy_panic_threshold": {}
},
"load_assignment": {
"cluster_name": "sample-shard",
"endpoints": [
{
"locality": {
"region": "sa-east-1",
"zone": "az-a",
"sub_zone": "cell-1"
},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "json-server-mock-cell1",
"port_value": 80
}
},
"health_check_config": {
"port_value": 80,
"hostname": "json-server-mock-cell1"
}
},
"load_balancing_weight": 100
}
],
"priority": 1
},
{
"locality": {
"region": "sa-east-1",
"zone": "az-b",
"sub_zone": "cell-2"
},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "json-server-mock-cell2",
"port_value": 80
}
},
"health_check_config": {
"port_value": 80,
"hostname": "json-server-mock-cell2"
}
},
"load_balancing_weight": 100
}
],
"priority": 1
}
]
}
},
"last_updated": "2023-11-29T18:15:22.448Z"
},
{
"version_info": "309870cc826e1cd0dff766a0768367f5f6dd758bd3accbe244a2a26fc25b0b92",
"cluster": {
"@type": "type.googleapis.com/envoy.config.cluster.v3.Cluster",
"name": "shard-2",
"type": "STRICT_DNS",
"health_checks": [
{
"timeout": "5s",
"interval": "5s",
"unhealthy_threshold": 6,
"healthy_threshold": 2,
"reuse_connection": false,
"http_health_check": {
"path": "/"
},
"no_traffic_interval": "5s",
"event_log_path": "/dev/stdout",
"always_log_health_check_failures": true
}
],
"circuit_breakers": {
"thresholds": [
{
"max_connections": 1024,
"max_pending_requests": 1024,
"max_requests": 1024,
"max_retries": 3
}
]
},
"dns_lookup_family": "V4_ONLY",
"outlier_detection": {
"consecutive_5xx": 2,
"interval": "1s",
"base_ejection_time": "60s",
"max_ejection_percent": 100,
"max_ejection_time": "120s"
},
"common_lb_config": {
"healthy_panic_threshold": {}
},
"load_assignment": {
"cluster_name": "shard-2",
"endpoints": [
{
"locality": {
"region": "sa-east-1",
"zone": "az-b",
"sub_zone": "cell-3"
},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "json-server-mock-cell3",
"port_value": 80
}
},
"health_check_config": {
"port_value": 80,
"hostname": "json-server-mock-cell3"
}
},
"load_balancing_weight": 100
}
],
"priority": 1
}
]
}
},
"last_updated": "2023-11-29T18:15:22.450Z"
}
]
},
{
"@type": "type.googleapis.com/envoy.admin.v3.EndpointsConfigDump",
"static_endpoint_configs": [
{
"endpoint_config": {
"@type": "type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment",
"cluster_name": "xds_cluster",
"endpoints": [
{
"locality": {},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "192.168.65.254",
"port_value": 18000
}
},
"health_check_config": {},
"hostname": "host.docker.internal"
},
"health_status": "HEALTHY",
"metadata": {},
"load_balancing_weight": 1
}
]
}
],
"policy": {
"overprovisioning_factor": 140
}
}
}
],
"dynamic_endpoint_configs": [
{
"endpoint_config": {
"@type": "type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment",
"cluster_name": "shard-2",
"endpoints": [
{
"locality": {
"region": "sa-east-1",
"zone": "az-b",
"sub_zone": "cell-3"
},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "192.168.224.4",
"port_value": 80
}
},
"health_check_config": {
"hostname": "json-server-mock-cell3"
},
"hostname": "json-server-mock-cell3"
},
"health_status": "HEALTHY",
"metadata": {},
"load_balancing_weight": 100
}
],
"priority": 1
}
],
"policy": {
"overprovisioning_factor": 140
}
}
},
{
"endpoint_config": {
"@type": "type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment",
"cluster_name": "sample-shard",
"endpoints": [
{
"locality": {
"region": "sa-east-1",
"zone": "az-a",
"sub_zone": "cell-1"
},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "192.168.224.5",
"port_value": 80
}
},
"health_check_config": {
"hostname": "json-server-mock-cell1"
},
"hostname": "json-server-mock-cell1"
},
"health_status": "HEALTHY",
"metadata": {},
"load_balancing_weight": 100
}
],
"priority": 1
},
{
"locality": {
"region": "sa-east-1",
"zone": "az-b",
"sub_zone": "cell-2"
},
"lb_endpoints": [
{
"endpoint": {
"address": {
"socket_address": {
"address": "192.168.224.3",
"port_value": 80
}
},
"health_check_config": {
"hostname": "json-server-mock-cell2"
},
"hostname": "json-server-mock-cell2"
},
"health_status": "HEALTHY",
"metadata": {},
"load_balancing_weight": 100
}
],
"priority": 1
}
],
"policy": {
"overprovisioning_factor": 140
}
}
}
]
},
{
"@type": "type.googleapis.com/envoy.admin.v3.ListenersConfigDump",
"version_info": "2023-11-29T15:15:17-03:00",
"dynamic_listeners": [
{
"name": "listener_0",
"active_state": {
"version_info": "5e661ad6da647a0e5bc7485fd75e882a8a4d9c1a6fac17098f21327bb0c81f0e",
"listener": {
"@type": "type.googleapis.com/envoy.config.listener.v3.Listener",
"name": "listener_0",
"address": {
"socket_address": {
"address": "0.0.0.0",
"port_value": 11000
}
},
"filter_chains": [
{
"filters": [
{
"name": "envoy.filters.network.http_connection_manager",
"typed_config": {
"@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager",
"stat_prefix": "envoy_listener_11000",
"rds": {
"config_source": {
"api_config_source": {
"api_type": "GRPC",
"grpc_services": [
{
"envoy_grpc": {
"cluster_name": "xds_cluster"
}
}
],
"set_node_on_first_message_only": true,
"transport_api_version": "V3"
},
"resource_api_version": "V3"
},
"route_config_name": "router_config"
},
"http_filters": [
{
"name": "envoy.filters.http.router",
"typed_config": {
"@type": "type.googleapis.com/envoy.extensions.filters.http.router.v3.Router"
}
}
],
"use_remote_address": true,
"normalize_path": true,
"merge_slashes": true,
"common_http_protocol_options": {
"idle_timeout": "3600s"
},
"path_with_escaped_slashes_action": "UNESCAPE_AND_REDIRECT"
}
}
]
}
]
},
"last_updated": "2023-11-29T18:15:22.473Z"
}
}
]
},
{
"@type": "type.googleapis.com/envoy.admin.v3.ScopedRoutesConfigDump"
},
{
"@type": "type.googleapis.com/envoy.admin.v3.RoutesConfigDump",
"dynamic_route_configs": [
{
"version_info": "2023-11-29T15:16:21-03:00",
"route_config": {
"@type": "type.googleapis.com/envoy.config.route.v3.RouteConfiguration",
"name": "router_config",
"virtual_hosts": [
{
"name": "vh_all",
"domains": [
"*"
],
"routes": [
{
"match": {
"prefix": "/",
"headers": [
{
"name": "x_code",
"string_match": {
"safe_regex": {
"google_re2": {},
"regex": "^.*(1|2)$"
}
}
}
]
},
"route": {
"cluster": "shard-2",
"auto_host_rewrite": true
}
},
{
"match": {
"prefix": "/"
},
"route": {
"cluster": "sample-shard",
"auto_host_rewrite": true
}
}
]
}
]
},
"last_updated": "2023-11-29T18:16:21.986Z"
}
]
},
{
"@type": "type.googleapis.com/envoy.admin.v3.SecretsConfigDump"
}
]
}Based on this config you should see that a host is ejected for 60 secs the first time and for 120 secs the next time and each subsequent ejection should be 120 secs (because it is capped at 120 secs). I recently changed logic in eject/uneject but that change was required for frequency-based OD, not consecutive failures. Can you change interval to say 30 secs and see if it helps. If not, I will try to replicate is and debug it.
leandrocurioso
commented
11 months ago OK I will try with 30s and return here.
leandrocurioso
commented
11 months ago @cpakulski
I tried with 0.27.1 and outlier logging enabled and as you can sse:
Changed base ejection to 30s and max ejection still 120s
2023-11-29 16:09:34 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:09:32.749Z","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"EJECT","num_ejections":1,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:10:04 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:10:03.234Z","secs_since_last_action":"30","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"UNEJECT","num_ejections":1,"enforced":false}
2023-11-29 16:10:14 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:10:06.755Z","secs_since_last_action":"3","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"EJECT","num_ejections":2,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:10:44 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:10:37.248Z","secs_since_last_action":"30","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"UNEJECT","num_ejections":2,"enforced":false}
2023-11-29 16:10:44 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:10:40.751Z","secs_since_last_action":"3","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"EJECT","num_ejections":3,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:11:14 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:11:11.260Z","secs_since_last_action":"30","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"UNEJECT","num_ejections":3,"enforced":false}
2023-11-29 16:11:14 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:11:13.750Z","secs_since_last_action":"2","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"EJECT","num_ejections":4,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:11:44 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:11:44.277Z","secs_since_last_action":"30","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"UNEJECT","num_ejections":4,"enforced":false}
2023-11-29 16:11:54 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:11:47.763Z","secs_since_last_action":"3","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"EJECT","num_ejections":5,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:12:24 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:12:18.289Z","secs_since_last_action":"30","cluster_name":"sample-shard","upstream_url":"[172.19.0.5:80](http://172.19.0.5/)","action":"UNEJECT","num_ejections":5,"enforced":false}The time is not being multiplied for each ejection (look at the timestamp and secs_since_last_action property) it is always capped by the base_ejection (really strange),
I also tried with these versions and the behaviour is the same. https://github.com/envoyproxy/envoy/issues/31070#issuecomment-1830689747
Maybe a bug?
cpakulski
commented
11 months ago Thanks for checking it. Just to make sure, the last logs were captured with the following config:
"consecutive_5xx": 2,
"interval": "30s",
"base_ejection_time": "60s",
"max_ejection_percent": 100,
"max_ejection_time": "120s"correct?
leandrocurioso
commented
11 months ago @cpakulski
only difference is that the interval is 1s
cpakulski
commented
11 months ago OK. Can you change interval to 30 secs? I suspect that if you have sporadic traffic and no errors are reported within that 1 second, OD will decrement backoff multiplier. Can you make it longer, so you are sure that when host is UNEJECTED, next failure will be within "interval" period after being UNEJECTED.
leandrocurioso
commented
11 months ago Okay I will try and return here.
leandrocurioso
commented
11 months ago @cpakulski
For that config:
"outlier_detection": {
"consecutive_5xx": 2,
"interval": "30s",
"base_ejection_time": "30s",
"max_ejection_percent": 100,
"max_ejection_time": "120s"
}The logs:
2023-11-29 16:36:48 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:36:44.041Z","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":1,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:37:28 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:37:20.939Z","secs_since_last_action":"36","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"UNEJECT","num_ejections":1,"enforced":false}
2023-11-29 16:37:28 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:37:24.026Z","secs_since_last_action":"3","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":2,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:38:58 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:38:50.946Z","secs_since_last_action":"86","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"UNEJECT","num_ejections":2,"enforced":false}
2023-11-29 16:38:58 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:38:53.413Z","secs_since_last_action":"2","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":3,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:40:58 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:40:50.945Z","secs_since_last_action":"117","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"UNEJECT","num_ejections":3,"enforced":false}
2023-11-29 16:40:58 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:40:53.418Z","secs_since_last_action":"2","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":4,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:43:28 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:43:20.951Z","secs_since_last_action":"147","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"UNEJECT","num_ejections":4,"enforced":false}
2023-11-29 16:43:28 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:43:23.411Z","secs_since_last_action":"2","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":5,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:45:58 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:45:50.962Z","secs_since_last_action":"147","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"UNEJECT","num_ejections":5,"enforced":false}
2023-11-29 16:45:58 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:45:53.418Z","secs_since_last_action":"2","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":6,"enforced":true,"eject_consecutive_event":{}}
2023-11-29 16:48:28 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:48:20.967Z","secs_since_last_action":"147","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"UNEJECT","num_ejections":6,"enforced":false}
2023-11-29 16:48:28 {"type":"CONSECUTIVE_5XX","timestamp":"2023-11-29T19:48:24.425Z","secs_since_last_action":"3","cluster_name":"sample-shard","upstream_url":"[172.21.0.2:80](http://172.21.0.2/)","action":"EJECT","num_ejections":7,"enforced":true,"eject_consecutive_event":{}}Now secs_since_last_action property is being increased and the multiplication is happening! Very nice!
But one question what is the minimum interval that I should use? And if an user sets 1s interval is considered a bug?l
cpakulski
commented
11 months ago It is not a bug for 1 sec interval. If you generate more than 2 requests per second, when node is un-ejected next failure will happen within "interval" time of 1 secs and you will see incremental backoff-time. If you do not have enough traffic within that 1 secs, OD algorithm thinks "aha, interval passed and I did not see a failure, so probably host is healthy now" and decrements backoff multiplier. For consecutive errors OD, you can make interval equal to base_ejection_time, because a host is ejected immediately after threshold of consecutive errors is reached. In other OD methods (success rate, frequency) ejection happens only when "interval" timer fires, so you may want to have it shorter, but again for consecutive errors I think it buys you nothing.
leandrocurioso
commented
11 months ago @cpakulski thanks a lot for the explanation!
Hi Envoy Team,
I'm doing active + passive health cheking in my envoy but I'm getting a strange behaviour detailed below:
Scenario
Effect
For some reason (maybe I missed that in the docs), if lb_endpointB returns 2 times http response code 500 envoy removes the endpoint from receiving request BUT doesn't respect the base_ejection_time in less then 10 or 15s it is added again to receive requests.
I don't know what is happening maybe the active health check is adding it again to active mode in backgoround? I can't see any logs about it (current log level equals to info).
When I remove the active health check the outlier respects the ejection time but for some reason if I have active health check enabled this strange behaviour happen.
What I Expected
I thought no matter what the passive health check would keep the endpoint out of receiving. What could possibly put the endpoint live again if the base_ejection_time is not reached?
Thanks for your time!