[ANN] NSQ v1.2.0

[Pierce Lopez]

1.2.0

Upgrading

• #1055 - nsqd: removed support for old metadata scheme used in v0.3.8 and earlier
  • you cannot upgrade directly from v0.3.8 to v1.2.0, you must go through v1.0.0-compat or v1.1.0
• #1115 - manage dependencies with go modules
  • dep support still present for now, but deprecated

Features:

• #1136 - nsqd: add --max-channel-consumers (default unlimited) (thanks @andyxning)
• #1133 - nsqd: add --min-output-buffer-timeout (default 25ms) to limit how low a timeout a consumer can request
  • and raise default --max-output-buffer-timeout to 30 seconds (lower timeout, more cpu usage)
• #1127 - nsqd: add topic total message bytes to stats (thanks @andyxning)
• #1125 - nsqd: add flag to adjust default --output-buffer-timeout (thanks @andyxning)
• #1163 - nsqd: add random load balancing for authd requests (thanks @shenhui0509)
• #1119 - nsqd: include client TLS cert CommonName in authd requests
• #1147 - nsq_to_file: include topic/channel in most log messages
• #1117 - nsq_to_file: add --log-level and --log-prefix flags
• #1117/#1120/#1123 - nsq_to_file: big refactor, more robust file switching and syncing and error handling
• #1118 - nsqd: add param to /stats endpoint to allow skipping per-client stats (much faster if many clients)
• #1118 - nsqadmin, nsq_stat: use include_clients param for /stats for a big speedup for big clusters
• #1110 - nsq_to_file: support for separate working directory with --work-dir (thanks @mccutchen)
• #856 - nsqadmin: add --base-path flag (thanks @blinklv)
• #1072 - nsq_to_http: add --header flag (thanks @alwindoss)
• #881 - nsqd: add producer client tcp connections to stats (thanks @sparklxb)
• #1071/#1074 - nsq_to_file: new flag --sync-interval (default same as previous behavior, 30 seconds) (thanks @alpaker)

Bugs:

• #1153 - nsqd: close connections that don't send "magic" header (thanks @JoseFeng)
• #1140 - nsqd: exit on all fatal Accept() errors - restart enables better recovery for some conditions (thanks @mdh67899)
• #1140 - nsqd, nsqlookupd, nsqadmin: refactor LogLevel, general refactor to better exit on all fatal errors
• #1140 - nsqadmin: switch to using judwhite/go-svc like nsqd and nsqadmin do
• #1134 - nsqadmin: fix clients count and channel total message rate (new bugs introduced in this cycle)
• #1132 - nsqd, nsqlookupd, nsqadmin: fix http error response unreliable json serialization
• #1116 - nsqlookupd: fix orphaned ephemeral topics in registration DB
• #1109 - nsqd: fix topic message mis-counting if there are backend write errors (thanks @SwanSpouse)
• #1099 - nsqlookupd: optimize /nodes endpoint, much better for hundreds of nsqd (thanks @andyxning)
• #1085 - switch GOFLAGS to BLDFLAGS in Makefile now that GOFLAGS is automatically used by go
• #1080 - nsqadmin: eslint reported fixes/cleanups