When there is a burst of DNS requests, We are noticing steep memory spikes. We are using ATS 7.0 and also back ported TS-5066 and TS-5065.
If i disable ‘proxy.config.hostdb’ , can this result in skipping the complete hostdb module from processing ?? My intention is to narrow down the issue and for a while I can sacrifice the performance without hostdb module. traffic_ctl metric match hostdb proxy.process.hostdb.total_lookups 0 proxy.process.hostdb.total_hits 0 proxy.process.hostdb.ttl 0.000000 proxy.process.hostdb.ttl_expires 0 proxy.process.hostdb.re_dns_on_reload 0 proxy.node.hostdb.total_lookups 0 proxy.node.hostdb.total_hits 0 proxy.node.hostdb.total_lookups_avg_10s 0 proxy.cluster.hostdb.total_lookups_avg_10s 0 proxy.node.hostdb.total_hits_avg_10s 0 proxy.cluster.hostdb.total_hits_avg_10s 0 proxy.node.hostdb.hit_ratio_avg_10s 0.000000 proxy.cluster.hostdb.hit_ratio_avg_10s 0.000000 proxy.node.hostdb.hit_ratio 0.000000 proxy.cluster.hostdb.hit_ratio 0.000000 proxy.process.hostdb.cache.current_items 104 proxy.process.hostdb.cache.current_size 34764 proxy.process.hostdb.cache.total_inserts 71697870 proxy.process.hostdb.cache.total_failed_inserts 0 proxy.process.hostdb.cache.total_lookups 143809482 proxy.process.hostdb.cache.total_hits 143809134 proxy.process.hostdb.cache.last_sync.time 0 proxy.process.hostdb.cache.last_sync.total_items 0 proxy.process.hostdb.cache.last_sync.total_size 0 traffic_ctl config match hostdb proxy.config.cache.hostdb.sync_frequency: 0 proxy.config.hostdb.host_file.path: XXXXXXX proxy.config.hostdb.host_file.interval: 300 proxy.config.hostdb.ttl_mode: 3 proxy.config.hostdb.serve_stale_for: 600 proxy.config.cache.hostdb.disable_reverse_lookup: 0 proxy.config.hostdb.ip_resolve: NULL proxy.config.hostdb: 1 proxy.config.hostdb.filename: XXXXXXXXX proxy.config.hostdb.max_count: -1 proxy.config.hostdb.storage_path: var proxy.config.hostdb.max_size: 10485760 proxy.config.hostdb.partitions: 64 proxy.config.hostdb.lookup_timeout: 30 proxy.config.hostdb.timeout: 1440 proxy.config.hostdb.verify_after: 720 proxy.config.hostdb.fail.timeout: 0 proxy.config.hostdb.re_dns_on_reload: 0 proxy.config.hostdb.migrate_on_demand: 0 proxy.config.hostdb.cluster: 0 proxy.config.hostdb.cluster.round_robin: 0 proxy.config.hostdb.strict_round_robin: 0 proxy.config.hostdb.timed_round_robin: 0 Vamsi
