Greetings I am evaluating signoz and currently running in Do

Question

Greetings I am evaluating signoz and currently running in Docker Where is the data collected being stored and what is the retention

Scott · Answer

Thanks brother So what is the retention by default Moreover is there a sizing formula for an estimate of storage required by day And another thing Services show several applications Are those SigNoz itself How are Redis and Mysql used I thought I read that clickhouse was the data store

Pranay · Answer

By default there is no retention period set So data keeps on getting stored indefinitely We highly recommend to set retention period based on your business needs

Pranay · Answer

< Scott> the services you see by default are a sample application which is installed by default with SigNoz This enables users to explore functionalities of SigNoz with instrumenting their application first Redis and MySQL are part of that sample application If you want you can remove the sample application by following steps mentioned here ClickHouse is indeed the primary datastore

Pranay · Answer

Hope this clarifies feel free to ask more questions if something is not clear

Scott · Answer

Thanks < Pranay> Say the application I am trying to instrument is a production Spring Boot app with mane dependencies It appears to be over instrumented according to the Traces I am now experimenting with turning off auto instrument e g otel instrumentation spring scheduling enabled=false and decorating where I need a trace to begin using WithSpan At the moment I do not see the method I decorated showing up ``` WithSpan private void processMessagesReceivedFromStore StoreInfo storeInfo throws Exception ```

Pranay · Answer

I see so you plan to turn off auto instrumentation and send all spans manually < Scott> < Ankit Nayan> < Vishal Sharma> any insights on why WithSpan decorated traces may not be appearing in SigNoz

Ankit Nayan · Answer

< Scott> have you followed Go through the steps once again in case you missed something

Scott · Answer

I have read thru that doc Out of the box I was not getting the traces I needed Once I started decorating the methods I wanted in my trace I then started seeing duplicate spans in my trace It was at this point I started turning off auto instrument e g otel instrumentation spring scheduling enabled=false However I am now getting traces which indicate there are missing spans This seems to be generating spans I either cannot see in my code or missing spans and or duplicating spans Any clues

Ankit Nayan · Answer

hmm I have not looked into these Can it wait for a few days Maybe by Thu Friday Somebody could give it a try

Scott · Answer

As I am trying to figure out my spans traces is there a way to easily flush all collected data

Ankit Nayan · Answer

connect to clickhouse and truncate all tables inside dbs `signoz traces` `signoz metrics` and `signoz logs`

Vishal Sharma · Answer

< Scott> Here s how you connect to clickhouse