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add kernel parameters settings in pod security context #1016

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merged 4 commits into from
Oct 16, 2019
Merged

add kernel parameters settings in pod security context #1016

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26431da
add kernel parameters settings in pod security context
tennix Oct 12, 2019
53b797f
tiny fix
tennix Oct 15, 2019
731e5bc
Merge branch 'master' into tune-kernel-parameters
cofyc Oct 16, 2019
429b1c7
Merge branch 'master' into tune-kernel-parameters
tennix Oct 16, 2019
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37 changes: 36 additions & 1 deletion charts/tidb-cluster/values.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,15 @@ pd:
# Specify the security context of PD Pod.
# refer to https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod
podSecurityContext: {}
# sysctls:
# # You can enable these kernel parameters tuning to improve TiDB performance,
# # when the kubelet is configured to allow unsafe sysctls
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# - name: net.core.somaxconn
# value: "32768"
# - name: net.ipv4.tcp_syncookies
# value: "0"
# - name: net.ipv4.tcp_tw_recycle
# value: "0"

# Specify the priorityClassName for PD Pod.
# refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#how-to-use-priority-and-preemption
Expand Down Expand Up @@ -208,7 +217,7 @@ tikv:
#
# # Normally it should be tuned to 30%-50% of `tikv.resources.limits.memory`, for example: 32Gi -> 16GB
# capacity = "1GB"
# Note that we can't set raftstore.capacity in config because it will be overridden by the command line parameter,
# Note that we can't set raftstore.capacity in config because it will be overridden by the command line parameter,
# we can only set capacity in tikv.resources.limits.storage.

replicas: 3
Expand Down Expand Up @@ -257,6 +266,15 @@ tikv:
# Specify the security context of TiKV Pod.
# refer to https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod
podSecurityContext: {}
# sysctls:
# # You can enable these kernel parameters tuning to improve TiDB performance,
# # when the kubelet is configured to allow unsafe sysctls
# - name: net.core.somaxconn
# value: "32768"
# - name: net.ipv4.tcp_syncookies
# value: "0"
# - name: net.ipv4.tcp_tw_recycle
# value: "0"

# Specify the priorityClassName for TiKV Pod.
# refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#how-to-use-priority-and-preemption
Expand Down Expand Up @@ -335,6 +353,23 @@ tidb:
# Specify the security context of TiDB Pod.
# refer to https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod
podSecurityContext: {}
# sysctls:
# # You can enable these kernel parameters tuning to improve TiDB performance,
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# # when the kubelet is configured to allow unsafe sysctls
# - name: net.core.somaxconn
# value: "32768"
# - name: net.ipv4.tcp_syncookies
# value: "0"
# - name: net.ipv4.tcp_tw_recycle
# value: "0"

# # Load balancers usually have an idle timeout (eg. AWS NLB idle timeout is 350),
# # the tcp_keepalive_time must be set to lower than LB idle timeout.
# - name: net.ipv4.tcp_keepalive_time
# value: "300"
# - name: net.ipv4.tcp_keepalive_intvl
# value: "75"


# Specify the priorityClassName for TiDB Pod.
# refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#how-to-use-priority-and-preemption
Expand Down