cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Kai Wang <dep...@gmail.com>
Subject Bloom filter memory usage disparity
Date Tue, 03 May 2016 16:47:13 GMT
Hi,

I have a table on 3-node cluster. I notice bloom filter memory usage are
very different on one of the node. For a given table, I checked
CassandraMetricsRegistry$JmxGauge.[table]_BloomFilterOffHeapMemoryUsed.Value.
2 of 3 nodes show 1.5GB while the other shows 2.5 GB.

What could be the reason?

That table is using LCS.
bloom_filter_fp_chance=0.1
That table has about 16M keys and 140GB of data.

Thanks.

Mime
View raw message