Different Log directory free space warning on one host in cloudera

Question

Hi,

We are running CDH 5.14.0 version of cloudera.There are multiple warnings coming related to log data directory for only one Data node( hadoop-slave-1). please see warnings.

for the same node,root / dir space is showing critical.

can anyone suggest what files i should delete from "/ ,so that i can clear these alarms .

Thanks

Devendra

salimhussain · Accepted Answer

Hi Devendra,

I see you are seeing multiple low disk space alerts for various role log and role data directories. It is not advised to delete anything manually from these directories instead adjust the retention policy for them in CM and let CM delete it automatically for you.

Review the documentation to find default retention policy for Cloudera Management Services data directories and following documentation for setting retention policy for any role log that by default reside in /var/log/. Remove and Delete any unused parcel from CM > Parcel page to reclaim disk space occupied by parcels. Details are given here.

I hope that will help.

Thanks,

Salim

sagarshimpi · Answer

Hi @pdev Login to the host and execute below command -

for a in /*; do mountpoint -q -- "$a" || du -s -h -x "$a"; done

command which will ignore all mounts and only give size details of filesystem/dirs which resides under "/"

You can check and delete data accordingly.

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