Re: Understanding logging in Cassandra

You can configure which log levels get logged but you can't change the log level of the log entries. For example if an entry is logged at DEBUG level, you cannot reconfigure it to be logged at INFO since the levels are defined in the code. Also, I wouldn't disable debug logging if I were managing

Re: Snapshots space question

My apologies for not being clear. What I meant was to run a du for every subdirectory in the snapshots folder and compare them with the listsnapshots output. As Kane pointed out, you might have subdirectories not listed as a snapshot. Cheers! >

Understanding logging in Cassandra

Hello, I recently moved from C* version 2.1.16 to 3.11.6 and I see a lot of difference in logging between these two versions. Can someone please help me with the below questions? - Default log level in 2.1.16 is INFO

Re: Snapshots space question

The calculation isn't terribly smart - it simply sums up the size of all the snapshots, which might not be accurate as multiple snapshots may point to the same SSTable as they are hardlinks. It really shouldn't be called TrueDiskSpaceUsed, but for some reason no one is considering it a bug. https:

Re: Snapshots space question

No problem.  I'll use another node: nodetool listsnapshots Snapshot Details: Snapshot name                             Keyspace name Column family name True size  Size on disk truncated-1613059667093-extractedmetadata doc          extractedmetadata  4.95

Re: Snapshots space question

> > That said, the "Total TrueDiskSpaceUsed: 16.09 GiB" seems to be way off? > Or is that value something else? > It's a bit late now since you've cleared them but it would have been good to check the size of each snapshot directory with du and validate it against the listsnapshots output. FWIW sn

Re: Snapshots space question

Ah - you are correct.  auto_snapshot is set to true and there were recent truncates and drops. That said, the "Total TrueDiskSpaceUsed: 16.09 GiB" seems to be way off?  Or is that value something else? Thank you! -Joe On 2/16/2021 4:46 PM, Arvinder Dhillon wrote: You need to check if someth

Re: Snapshots space question

You need to check if something/someone create snapshots. Maybe your application drops and recreate tables, and "create snapshot before drop" setting is enabled in your Cassandra setup? -Arvi On Tue, Feb 16, 2021, 1:04 PM Joe Obernberger wrote: > Hello all - I'm seeing a lot of disk usage by sna

Snapshots space question

Hello all - I'm seeing a lot of disk usage by snapshots.  On this particular node /data/1/cassandra, and /data/2/cassandra are the mount points Cassandra is using for disk storage: du -s -h /data/1/cassandra 211G    /data/1/cassandra du -s -h /data/2/cassandra 343G    /data/2/cassandra