title: OpsCenter rollups* tables are growing forever
body: <p>We are using DSE 4.8.8 with OpsCenter 5.2.4. All our <code>OpsCenter.rollups*</code> tables are growing forever, especially the rollups60 one:</p>
  
  <p><a href="http://i.stack.imgur.com/f4SZV.png" rel="nofollow">Size of rollups60, 1 month</a></p>
  
  <p>The keyspace OpsCenter uses org.apache.cassandra.locator.NetworkTopologyStrategy, DC1 1, DC2 1</p>
  
  <p>Table settings:</p>
  
  <pre><code>CREATE TABLE "OpsCenter".rollups60 (
      key text,
      "timestamp" varint,
      value blob,
      PRIMARY KEY (key, "timestamp")
  ) WITH COMPACT STORAGE
      AND CLUSTERING ORDER BY ("timestamp" ASC)
      AND bloom_filter_fp_chance = 0.01
      AND caching = '{"keys":"ALL", "rows_per_partition":"NONE"}'
      AND comment = '{"info": "OpsCenter management data.", "version": [5, 2, 1]}'
      AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'}
      AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}
      AND dclocal_read_repair_chance = 0.0
      AND default_time_to_live = 0
      AND gc_grace_seconds = 0
      AND max_index_interval = 2048
      AND memtable_flush_period_in_ms = 0
      AND min_index_interval = 128
      AND read_repair_chance = 0.25
      AND speculative_retry = 'NONE';
  </code></pre>
  
  <p>The entries have no TTL on the columns <code>key</code> and <code>timestamp</code> and a TTL of 604618 on the column <code>value</code>.</p>
  
  <p>Any idea how to fix this? I already tried a truncate as describes here: <a href="https://support.datastax.com/hc/en-us/articles/204225719-My-OpsCenter-version-3-2-keyspace-is-keeping-too-much-data" rel="nofollow">Datastax support</a></p>