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@buger buger released this Mar 30, 2019 · 6 commits to master since this release

Long awaited major release of GoReplay!

  • Added option to specify custom BPF filter (e.g. tcpdump syntax). Can be useful in case of non standard network interfaces like tunneling or SPAN port. Example: --input-raw-bpf-filter 'dst port 80’ #478
  • Support for reading directly from pcap file, using --input-raw-engine pcap_file --input-raw ./recording.pcap_
  • Added official Docker image docker pull buger/goreplay. Should be run with --network host argument.
  • Added RPM and DEB packages
  • Added support for HTTP proxies. Just set HTTP_PROXY env variable.
  • Added HTTP basic auth filter: --http-basic-auth-filter "^customer[0-9].*. You specify regexp which match userid:passwd string. []
  • Added option to limit size of output file: when limit is reached, it will exit. Can be used for safety reasons. Example: --output-file-max-size-limit 5gb.
  • Added way to configure output HTTO request queue, which used to hold requests, if all workers are busy. Example: --output-http-queue-len 5000. Default is 1000.
  • Control frequency of --output-http-stats reports using --output-http-stats-msoption. Example: --output-http-stats-ms 5000 (every 5 seconds).
  • Configurable way to set minimum number of HTTP workers, by setting --output-http-workers-min. Can be used in conjunction with --output-http-workers which will act as a max worker count.
  • Added way to dynamically profile GoReplay performance using Golang pprof tools. Example: --http-pprof :8181. It starts web server on given address, and expose special /debug/pprof endpoint with list of reports.
  • Added —input-raw-buffer-size which controls size of the OS buffer (in
    bytes) which holds packets until they dispatched. Default value depends
    by system: in Linux around 2MB. If you see big package drop, increase
    this value.
  • In addition to buffer size, added option to turn pcap immediate mode when packets delivered without buffering. Can help reduce packet drop. Example: --input-raw-immediate-mode.
  • Added way to use standard Golang HTTP client, by adding --output-http-compatibility-mode
  • Snaplen (max number of bytes being read for each packet)
    now dynamically set based on interface MTU + max header size. In most
    situations it should reduce package drop, because each packet will
    consume less space in the buffer. However in some virtualized environments like OpenShift, packet size can be significantly bigger then MTU, so you can disable optimization by setting --input-raw-override-snaplen.
  • Added support for ElasticSearch basic HTTP auth
  • Numerous fixes to improve quality of HTTP packets parsing
Assets 6

@buger buger released this Feb 23, 2019 · 9 commits to master since this release

  • Added support for HTTP proxies. Just set HTTP_PROXY env variable.
Assets 4

@buger buger released this Jun 30, 2017 · 94 commits to master since this release

  • Add support for TLS connections between --input-tcp and --output-tcp. --input-tcp-secure --input-tcp-certificate ./cert.pem --input-tcp-certificate-key ./key.pem --output-tcp-secure #457
  • Add basic support for old server, like HTTP 0.9 #468 #463 #467
  • GoReplay now exit once finished replaying with --input-file #456
  • Fix prettifier issue, when there is problems with gzip encoding payload #470
Assets 4

@buger buger released this May 1, 2017 · 114 commits to master since this release

Finally a new big release, a lot of changes on all fronts. New features, usability stability, fixes.

Thank you, everyone, who made it happen!

It would not be possible without this people @smostovoy @exklamationmark @manjeshnilange @kudos @oivoodoo @sattvik @ylegat @nrwiersma @SophisticaSean




  • Add new option --input-raw-expire to configure TCP message expiration
  • Filter response if its request was filtered
  • Allow space inside filters syntax: `--http-disallow-header 'Host:' now valid syntax
  • File name pattern now support request id %r, will log each request to separate file, and %t for payload type (0 - request, 1 - response, 2 - replayed response).
  • Add basic SNI support to support HTTP replay to hosts that require SNI, such as Amazon API Gateway.
    API Gateway)
  • Fix --output-file-size-limit option
  • Do not add port to Host header #383
  • Improve malformed TCP packet handling to avoid panics
  • Fix HTTP timeout for 204 (No content) responses
  • Fix handling of HTTP error codes like 400 or 304.
  • Fixed replay of HTTP PATCH requests
Assets 4
May 1, 2017
Add govendor and vendor all depended packages
May 1, 2017

@buger buger released this Aug 31, 2016 · 196 commits to master since this release

  • Add support for basic http auth for --output-http 1674b58
  • Fix handling of "Connection: close" for POST requests fc0361d
  • Fix inconsistency in replayed response meta when used in middleware a2f5e43
Assets 4

@buger buger released this Aug 23, 2016 · 200 commits to master since this release

  • Gopacket package now vendored same as the rest of 3-rd party dependencies
Assets 2

@buger buger released this Aug 10, 2016 · 202 commits to master since this release

  • [PRO] Added support for working with binary protocols (thrift/protocol buffers)
  • [PRO] Recording and replaying keep alive TCP sessions
  • Replaying request in proper order when using multiple files #300
  • Validate bodies when Content-Length or Transfer-Encoding found #317
  • Return of ElasticSearch support! #331 #333
  • Added --exit-after option to specify duration after which Gor will exit #336
  • Updated response output file format, now third value is timestamp and forth is latency
  • Properly read body when no Content-Length but there is Connection: close d34c27c
  • Remove --input-http option (too confusing and never really worked) f0acd31
  • Force Go DNS resolver (C one caused crashes for multiple people) 07fa6d9
  • Fix interception on loopback interface when non-local IP used 1ed8691
  • Fix intercepting traffic from virtual interfaces 51860e1
  • Fix 100-continue header when it places not in the end #314
  • Fix relative file names when using --output-file #304
  • Properly cleanup used resources on exit #305
  • Fix connection timeout when using --output-http-timeout c4271ff
Assets 5

@buger buger released this Jun 10, 2016 · 247 commits to master since this release

  • Fixed critical issues with crashing when used --output-file
Assets 5
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