CLI to monitor connection pool in OpenShift
I have used Istio's circuitbreaker settings that ejects a host from connection pool based on number of consecutive errors. Is there a way to monitor the connection pool using command line and see the changes to host id or something like that?
openshift istio
asked Nov 13 '18 at 5:46
AruAru
1
add a comment |
I have used Istio's circuitbreaker settings that ejects a host from connection pool based on number of consecutive errors. Is there a way to monitor the connection pool using command line and see the changes to host id or something like that?
openshift istio
asked Nov 13 '18 at 5:46
AruAru
1
add a comment |
I have used Istio's circuitbreaker settings that ejects a host from connection pool based on number of consecutive errors. Is there a way to monitor the connection pool using command line and see the changes to host id or something like that?
openshift istio
asked Nov 13 '18 at 5:46
AruAru
1
I have used Istio's circuitbreaker settings that ejects a host from connection pool based on number of consecutive errors. Is there a way to monitor the connection pool using command line and see the changes to host id or something like that?
openshift istio
openshift istio
asked Nov 13 '18 at 5:46
AruAru
1
asked Nov 13 '18 at 5:46
AruAru
1
asked Nov 13 '18 at 5:46
AruAru
1
asked Nov 13 '18 at 5:46
AruAru
1
asked Nov 13 '18 at 5:46
AruAru
1
1
add a comment |
add a comment |
1 Answer
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Using the command line tool, I'm not sure. But the load-balancing pool size is stored in Envoy metrics (see membership healthy / total and outlier detection stats: https://www.envoyproxy.io/docs/envoy/latest/configuration/cluster_manager/cluster_stats#health-check-statistics ). So, if you have istio's prometheus running, you can open its UI and view the values (or curl it with prometheus rest api).
Example of metric name:
envoy_cluster_inbound_8080__my_service_my_namespace_svc_cluster_local_membership_healthy
Where 8080 is the port of your service, my_service is its name, my_namespace its namespace. There's also a similiar one for outbound: envoy_cluster_outbound_(etc.)
In Istio 1.1 these metrics are reorganized into a format more suitable for Prometheus, so the names change a little bit and service name / namespace become label instead of being part of the name.
Note that Kiali ( https://www.kiali.io/ ) shows this health information.
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
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1 Answer
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1 Answer
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Using the command line tool, I'm not sure. But the load-balancing pool size is stored in Envoy metrics (see membership healthy / total and outlier detection stats: https://www.envoyproxy.io/docs/envoy/latest/configuration/cluster_manager/cluster_stats#health-check-statistics ). So, if you have istio's prometheus running, you can open its UI and view the values (or curl it with prometheus rest api).
Example of metric name:
envoy_cluster_inbound_8080__my_service_my_namespace_svc_cluster_local_membership_healthy
Where 8080 is the port of your service, my_service is its name, my_namespace its namespace. There's also a similiar one for outbound: envoy_cluster_outbound_(etc.)
In Istio 1.1 these metrics are reorganized into a format more suitable for Prometheus, so the names change a little bit and service name / namespace become label instead of being part of the name.
Note that Kiali ( https://www.kiali.io/ ) shows this health information.
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
add a comment |
Using the command line tool, I'm not sure. But the load-balancing pool size is stored in Envoy metrics (see membership healthy / total and outlier detection stats: https://www.envoyproxy.io/docs/envoy/latest/configuration/cluster_manager/cluster_stats#health-check-statistics ). So, if you have istio's prometheus running, you can open its UI and view the values (or curl it with prometheus rest api).
Example of metric name:
envoy_cluster_inbound_8080__my_service_my_namespace_svc_cluster_local_membership_healthy
Where 8080 is the port of your service, my_service is its name, my_namespace its namespace. There's also a similiar one for outbound: envoy_cluster_outbound_(etc.)
In Istio 1.1 these metrics are reorganized into a format more suitable for Prometheus, so the names change a little bit and service name / namespace become label instead of being part of the name.
Note that Kiali ( https://www.kiali.io/ ) shows this health information.
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
add a comment |
Using the command line tool, I'm not sure. But the load-balancing pool size is stored in Envoy metrics (see membership healthy / total and outlier detection stats: https://www.envoyproxy.io/docs/envoy/latest/configuration/cluster_manager/cluster_stats#health-check-statistics ). So, if you have istio's prometheus running, you can open its UI and view the values (or curl it with prometheus rest api).
Example of metric name:
envoy_cluster_inbound_8080__my_service_my_namespace_svc_cluster_local_membership_healthy
Where 8080 is the port of your service, my_service is its name, my_namespace its namespace. There's also a similiar one for outbound: envoy_cluster_outbound_(etc.)
In Istio 1.1 these metrics are reorganized into a format more suitable for Prometheus, so the names change a little bit and service name / namespace become label instead of being part of the name.
Note that Kiali ( https://www.kiali.io/ ) shows this health information.
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
Using the command line tool, I'm not sure. But the load-balancing pool size is stored in Envoy metrics (see membership healthy / total and outlier detection stats: https://www.envoyproxy.io/docs/envoy/latest/configuration/cluster_manager/cluster_stats#health-check-statistics ). So, if you have istio's prometheus running, you can open its UI and view the values (or curl it with prometheus rest api).
Example of metric name:
envoy_cluster_inbound_8080__my_service_my_namespace_svc_cluster_local_membership_healthy
Where 8080 is the port of your service, my_service is its name, my_namespace its namespace. There's also a similiar one for outbound: envoy_cluster_outbound_(etc.)
In Istio 1.1 these metrics are reorganized into a format more suitable for Prometheus, so the names change a little bit and service name / namespace become label instead of being part of the name.
Note that Kiali ( https://www.kiali.io/ ) shows this health information.
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
answered Nov 13 '18 at 10:18
JoelJoel
1,4301119
1,4301119
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