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Update rules.yml

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Added reasonable time periods for each query to avoid false positives and in some cased give the system a short window to try to solve the issue.
Also changed the severity level of authentication alerts from critical to info which seems more appropriate
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Ali 2024-05-13 11:27:44 +03:30 committed by GitHub
parent 551a0a129e
commit 97646e5d14
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1 changed files with 13 additions and 4 deletions
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_data/rules.yml
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@ -1310,10 +1310,12 @@ groups:
description: Memory usage is critically high, over 90%.
query: "ClickHouseAsyncMetrics_CGroupMemoryUsed / ClickHouseAsyncMetrics_CGroupMemoryTotal * 100 > 90"
severity: critical
for: 5m
- name: ClickHouse Memory Usage Warning
description: Memory usage is over 80%.
query: "ClickHouseAsyncMetrics_CGroupMemoryUsed / ClickHouseAsyncMetrics_CGroupMemoryTotal * 100 > 80"
severity: warning
for: 5m
- name: ClickHouse Disk Space Low on Default
description: Disk space on default is below 20%.
query: "ClickHouseAsyncMetrics_DiskAvailable_default / (ClickHouseAsyncMetrics_DiskAvailable_default + ClickHouseAsyncMetrics_DiskUsed_default) * 100 < 20"
@ -1330,42 +1332,49 @@ groups:
description: Critical replica errors detected, either all replicas are stale or lost.
query: "ClickHouseErrorMetric_ALL_REPLICAS_ARE_STALE == 1 or ClickHouseErrorMetric_ALL_REPLICAS_LOST == 1"
severity: critical
for: 3m
- name: ClickHouse No Available Replicas
description: No available replicas in ClickHouse.
query: "ClickHouseErrorMetric_NO_AVAILABLE_REPLICA == 1"
severity: critical
for: 3m
- name: ClickHouse No Live Replicas
description: There are too few live replicas available, risking data loss and service disruption.
query: "ClickHouseErrorMetric_TOO_FEW_LIVE_REPLICAS == 1"
severity: critical
for: 3m
- name: ClickHouse High Network Traffic
description: Network traffic is unusually high, may affect cluster performance.
query: "ClickHouseMetrics_NetworkSend > 1000 or ClickHouseMetrics_NetworkReceive > 1000"
query: "ClickHouseMetrics_NetworkSend > 250 or ClickHouseMetrics_NetworkReceive > 250"
severity: warning
for: 3m
comments: |
Please replace the threshold with an appropriate value
- name: ClickHouse High TCP Connections
description: High number of TCP connections, indicating heavy client or inter-cluster communication.
query: "ClickHouseMetrics_TCPConnection > 1500"
query: "ClickHouseMetrics_TCPConnection > 400"
severity: warning
for: 3m
comments: |
Please replace the threshold with an appropriate value
- name: ClickHouse Interserver Connection Issues
description: An increase in interserver connections may indicate replication or distributed query handling issues.
query: "increase(ClickHouseMetrics_InterserverConnection[5m]) > 0"
severity: warning
for: 1m
- name: ClickHouse ZooKeeper Connection Issues
description: ClickHouse is experiencing issues with ZooKeeper connections, which may affect cluster state and coordination.
query: "avg(ClickHouseMetrics_ZooKeeperSession) != 1"
severity: warning
for: 1m
- name: ClickHouse Authentication Failures
description: Authentication failures detected, indicating potential security issues or misconfiguration.
query: "increase(ClickHouseErrorMetric_AUTHENTICATION_FAILED[5m]) > 0"
severity: critical
severity: info
- name: ClickHouse Access Denied Errors
description: Access denied errors have been logged, which could indicate permission issues or unauthorized access attempts.
query: "increase(ClickHouseErrorMetric_RESOURCE_ACCESS_DENIED[5m]) > 0"
severity: critical
severity: info
- name: Zookeeper