fluentd collect k8s containerd log do not use the timestamp from realy time #4514
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arthas3014
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the time in node container file is: |
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What is a problem?
I use fluentd-kubernetes-daemonset:v1.11.5-debian-elasticsearch7-1.1 to collect k8s containerd log to es,and I find that the log from es timestamp is not consistent with the time of the log file on the k8s node, which is more than ten seconds later than the real time, so I suspect that fluentd failed to parse time as timestamp to elasticsearch
Describe the configuration of Fluentd
<match kubernetes.**>
@type elasticsearch_dynamic
@id kubernetes_elasticsearch
@log_level info
include_tag_key true
host "#{ENV['FLUENT_ELASTICSEARCH_HOST']}"
port "#{ENV['FLUENT_ELASTICSEARCH_PORT']}"
path "#{ENV['FLUENT_ELASTICSEARCH_PATH']}"
scheme "#{ENV['FLUENT_ELASTICSEARCH_SCHEME'] || 'http'}"
ssl_verify "#{ENV['FLUENT_ELASTICSEARCH_SSL_VERIFY'] || 'true'}"
ssl_version "#{ENV['FLUENT_ELASTICSEARCH_SSL_VERSION'] || 'TLSv1_2'}"
user "#{ENV['FLUENT_ELASTICSEARCH_USER'] || use_default}"
password "#{ENV['FLUENT_ELASTICSEARCH_PASSWORD'] || use_default}"
reload_connections "#{ENV['FLUENT_ELASTICSEARCH_RELOAD_CONNECTIONS'] || 'false'}"
reconnect_on_error "#{ENV['FLUENT_ELASTICSEARCH_RECONNECT_ON_ERROR'] || 'true'}"
reload_on_failure "#{ENV['FLUENT_ELASTICSEARCH_RELOAD_ON_FAILURE'] || 'true'}"
log_es_400_reason "#{ENV['FLUENT_ELASTICSEARCH_LOG_ES_400_REASON'] || 'false'}"
logstash_prefix "#{ENV['FLUENT_ELASTICSEARCH_INDEX_PREFIX'] || 'logstash'}-${record['kubernetes']['namespace_name']}"
logstash_dateformat "#{ENV['FLUENT_ELASTICSEARCH_LOGSTASH_DATEFORMAT'] || '%Y-%m-%d'}"
logstash_format "#{ENV['FLUENT_ELASTICSEARCH_LOGSTASH_FORMAT'] || 'true'}"
index_name "#{ENV['FLUENT_ELASTICSEARCH_LOGSTASH_INDEX_NAME'] || 'logstash'}"
target_index_key "#{ENV['FLUENT_ELASTICSEARCH_TARGET_INDEX_KEY'] || use_nil}"
type_name "#{ENV['FLUENT_ELASTICSEARCH_LOGSTASH_TYPE_NAME'] || 'fluentd'}"
include_timestamp "#{ENV['FLUENT_ELASTICSEARCH_INCLUDE_TIMESTAMP'] || 'false'}"
#time_key logtime
template_name "#{ENV['FLUENT_ELASTICSEARCH_TEMPLATE_NAME'] || use_nil}"
template_file "#{ENV['FLUENT_ELASTICSEARCH_TEMPLATE_FILE'] || use_nil}"
template_overwrite "#{ENV['FLUENT_ELASTICSEARCH_TEMPLATE_OVERWRITE'] || use_default}"
sniffer_class_name "#{ENV['FLUENT_SNIFFER_CLASS_NAME'] || 'Fluent::Plugin::ElasticsearchSimpleSniffer'}"
request_timeout "#{ENV['FLUENT_ELASTICSEARCH_REQUEST_TIMEOUT'] || '5s'}"
suppress_type_name "#{ENV['FLUENT_ELASTICSEARCH_SUPPRESS_TYPE_NAME'] || 'true'}"
enable_ilm "#{ENV['FLUENT_ELASTICSEARCH_ENABLE_ILM'] || 'false'}"
ilm_policy_id "#{ENV['FLUENT_ELASTICSEARCH_ILM_POLICY_ID'] || use_default}"
ilm_policy "#{ENV['FLUENT_ELASTICSEARCH_ILM_POLICY'] || use_default}"
ilm_policy_overwrite "#{ENV['FLUENT_ELASTICSEARCH_ILM_POLICY_OVERWRITE'] || 'false'}"
flush_thread_count "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_FLUSH_THREAD_COUNT'] || '8'}"
flush_interval "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_FLUSH_INTERVAL'] || '5s'}"
chunk_limit_size "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_CHUNK_LIMIT_SIZE'] || '10M'}"
queue_limit_length "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_QUEUE_LIMIT_LENGTH'] || '32'}"
retry_max_interval "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_RETRY_MAX_INTERVAL'] || '30'}"
retry_forever true
kubernetes.conf:
<label @FLUENT_LOG>
<match fluent.**>
@type null
@id ignore_fluent_logs
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