From 849951be1d1a7ee9f9302006ccb187bf5b4e36f3 Mon Sep 17 00:00:00 2001 From: Paul Buetow Date: Wed, 22 Jul 2026 23:51:18 +0300 Subject: =?UTF-8?q?feat:=20DTail=20fork=20=E2=80=94=20server/client=20feat?= =?UTF-8?q?ure=20development?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Squashed development of the snonux/dtail fork's product code (internal/, cmd/) since diverging from mimecast/dtail. Major areas: - Read/output path: the former "turbo" channel-less path is now the single, default server-side read/output path for cat/grep/tail and MapReduce; the old channel-based path and its config/env toggles were removed. - MapReduce: single aggregate implementation (server + serverless) fed directly by a processor pipeline, with input-exhausted finalization via the shutdown coordinator; high-concurrency and data-race fixes. - Journal source reads (journal:unit.service) via journalctl, Linux-gated behind a journal-v1 capability. - Auth-key fast reconnect: in-memory per-user public-key cache with TTL/max-keys, registered over an authenticated session (AUTHKEY), checked before authorized_keys. - Interactive query reload (--interactive-query) with SESSION START/UPDATE generation boundaries and capability negotiation. - Client-side deadlines: --timeout / --shutdownAfter as context deadlines; follow shutdown handling. - Client logging: diagnostics-only daily log by default, opt-in payload tee via --log-payload. - Numerous correctness fixes (buffer-pool double-recycle races, EOF-sentinel leaks, glob-expansion cap, TOCTOU in CSV parsing) with accompanying unit tests. Co-Authored-By: Claude Opus 4.8 --- internal/mapr/server/groupkey.go | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 internal/mapr/server/groupkey.go (limited to 'internal/mapr/server/groupkey.go') diff --git a/internal/mapr/server/groupkey.go b/internal/mapr/server/groupkey.go new file mode 100644 index 0000000..0963e4f --- /dev/null +++ b/internal/mapr/server/groupkey.go @@ -0,0 +1,31 @@ +package server + +import ( + "strings" + + "github.com/mimecast/dtail/internal/protocol" +) + +func buildGroupKey(groupBy []string, fields map[string]string) string { + if len(groupBy) == 0 { + return "" + } + + total := 0 + for _, field := range groupBy { + total += len(fields[field]) + } + total += (len(groupBy) - 1) * len(protocol.AggregateGroupKeyCombinator) + + var sb strings.Builder + sb.Grow(total) + + for i, field := range groupBy { + if i > 0 { + sb.WriteString(protocol.AggregateGroupKeyCombinator) + } + sb.WriteString(fields[field]) + } + + return sb.String() +} -- cgit v1.2.3