from the Data Deluge? A case for file filtering in eBPF Giulia Frascaria October 28, 2020 1 The data deluge on modern storage 2 Compute node CPU Network Storage node Flash The data deluge on CPU Network Storage node Flash Data DoS in reverse! 11 Compute node CPU Network Storage node Flash Data So similar yet so different ● DoS is malicious ● Data transfer is business-critical ● We 12 So similar yet so different ● DoS is malicious ● Data transfer is business-critical ● We can blindly drop DoS 13 But could we reduce data transfer size? eBPF filter-reduce 14 Filter Reduce input

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 2.19 Shared Object Cache in Apache HTTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 2.20 suEXEC Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 8.9 htcacheclean - Clean up the disk cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 8.10 htdbm - Manipulate DBM password . . . . . . 507 10.28 Apache Module mod cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508 10.29 Apache Module mod cache disk . . . . . . . . . . . . . . . . . .

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 2.19 Shared Object Cache in Apache HTTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 2.20 suEXEC Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 8.9 htcacheclean - Clean up the disk cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 8.10 htdbm - Manipulate DBM password . . . . . . 507 10.28 Apache Module mod cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508 10.29 Apache Module mod cache disk . . . . . . . . . . . . . . . . . .

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct

modules have been removed: mod_authn_default, mod_authz_default, mod_mem_cache. If you were using mod_mem_cache in 2.2, look at mod_cache_disk in 2.4. All load balancing implementations have been moved to individual configuration to determine if they can just be deleted or will need to be replaced using Mutex. mod_cache: CacheIgnoreURLSessionIdentifiers now does an exact match against the query string instead of a partial /someapplication/image.gif;jsessionid=123456789, then you will need to change to the full string jsessionid. mod_cache: The second parameter to CacheEnable only matches forward proxy content if it begins with the correct