refactor tests && add test for tombstone && fix concurent read\write map

go.mod

@@ -10,19 +10,36 @@ require (
 	github.com/twmb/franz-go/pkg/kfake v0.0.0-20251227070528-0c71f7e25fa1
 	github.com/twmb/franz-go/pkg/kmsg v1.12.0
 	go.opentelemetry.io/otel v1.38.0
+	go.unistack.org/micro-codec-jsonpb/v3 v3.10.6
+	go.unistack.org/micro-codec-proto/v3 v3.10.3
+	go.unistack.org/micro-wrapper-requestid/v3 v3.9.4
 	go.unistack.org/micro/v3 v3.11.48
 )
 
 require (
+	dario.cat/mergo v1.0.1 // indirect
+	github.com/KimMachineGun/automemlimit v0.6.1 // indirect
 	github.com/ash3in/uuidv8 v1.2.0 // indirect
+	github.com/cilium/ebpf v0.16.0 // indirect
+	github.com/containerd/cgroups/v3 v3.0.4 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/klauspost/compress v1.18.1 // indirect
-	github.com/kr/pretty v0.3.1 // indirect
 	github.com/matoous/go-nanoid v1.5.1 // indirect
+	github.com/moby/sys/userns v0.1.0 // indirect
+	github.com/opencontainers/runtime-spec v1.2.0 // indirect
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
 	github.com/pierrec/lz4/v4 v4.1.22 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	go.uber.org/automaxprocs v1.6.0 // indirect
 	go.unistack.org/micro-proto/v3 v3.4.1 // indirect
 	golang.org/x/crypto v0.47.0 // indirect
+	golang.org/x/exp v0.0.0-20241210194714-1829a127f884 // indirect
 	golang.org/x/sys v0.40.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20251022142026-3a174f9686a8 // indirect
 	google.golang.org/grpc v1.76.0 // indirect

go.sum

@@ -1,16 +1,40 @@
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 github.com/DATA-DOG/go-sqlmock v1.5.2 h1:OcvFkGmslmlZibjAjaHm3L//6LiuBgolP7OputlJIzU=
 github.com/DATA-DOG/go-sqlmock v1.5.2/go.mod h1:88MAG/4G7SMwSE3CeA0ZKzrT5CiOU3OJ+JlNzwDqpNU=
+github.com/KimMachineGun/automemlimit v0.6.1 h1:ILa9j1onAAMadBsyyUJv5cack8Y1WT26yLj/V+ulKp8=
+github.com/KimMachineGun/automemlimit v0.6.1/go.mod h1:T7xYht7B8r6AG/AqFcUdc7fzd2bIdBKmepfP2S1svPY=
 github.com/ash3in/uuidv8 v1.2.0 h1:2oogGdtCPwaVtyvPPGin4TfZLtOGE5F+W++E880G6SI=
 github.com/ash3in/uuidv8 v1.2.0/go.mod h1:BnU0wJBxnzdEKmVg4xckBkD+VZuecTFTUP3M0dWgyY4=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/cilium/ebpf v0.16.0 h1:+BiEnHL6Z7lXnlGUsXQPPAE7+kenAd4ES8MQ5min0Ok=
+github.com/cilium/ebpf v0.16.0/go.mod h1:L7u2Blt2jMM/vLAVgjxluxtBKlz3/GWjB0dMOEngfwE=
+github.com/containerd/cgroups/v3 v3.0.4 h1:2fs7l3P0Qxb1nKWuJNFiwhp2CqiKzho71DQkDrHJIo4=
+github.com/containerd/cgroups/v3 v3.0.4/go.mod h1:SA5DLYnXO8pTGYiAHXz94qvLQTKfVM5GEVisn4jpins=
+github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
+github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
+github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs=
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
+github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/go-quicktest/qt v1.101.0 h1:O1K29Txy5P2OK0dGo59b7b0LR6wKfIhttaAhHUyn7eI=
+github.com/go-quicktest/qt v1.101.0/go.mod h1:14Bz/f7NwaXPtdYEgzsx46kqSxVwTbzVZsDC26tQJow=
+github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
+github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtLA=
+github.com/josharian/native v1.1.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
+github.com/jsimonetti/rtnetlink/v2 v2.0.1 h1:xda7qaHDSVOsADNouv7ukSuicKZO7GgVUCXxpaIEIlM=
+github.com/jsimonetti/rtnetlink/v2 v2.0.1/go.mod h1:7MoNYNbb3UaDHtF8udiJo/RH6VsTKP1pqKLUTVCvToE=
 github.com/klauspost/compress v1.18.1 h1:bcSGx7UbpBqMChDtsF28Lw6v/G94LPrrbMbdC3JH2co=
 github.com/klauspost/compress v1.18.1/go.mod h1:ZQFFVG+MdnR0P+l6wpXgIL4NTtwiKIdBnrBd8Nrxr+0=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -19,14 +43,31 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/matoous/go-nanoid v1.5.1 h1:aCjdvTyO9LLnTIi0fgdXhOPPvOHjpXN6Ik9DaNjIct4=
 github.com/matoous/go-nanoid v1.5.1/go.mod h1:zyD2a71IubI24efhpvkJz+ZwfwagzgSO6UNiFsZKN7U=
+github.com/mdlayher/netlink v1.7.2 h1:/UtM3ofJap7Vl4QWCPDGXY8d3GIY2UGSDbK+QWmY8/g=
+github.com/mdlayher/netlink v1.7.2/go.mod h1:xraEF7uJbxLhc5fpHL4cPe221LI2bdttWlU+ZGLfQSw=
+github.com/mdlayher/socket v0.4.1 h1:eM9y2/jlbs1M615oshPQOHZzj6R6wMT7bX5NPiQvn2U=
+github.com/mdlayher/socket v0.4.1/go.mod h1:cAqeGjoufqdxWkD7DkpyS+wcefOtmu5OQ8KuoJGIReA=
+github.com/moby/sys/userns v0.1.0 h1:tVLXkFOxVu9A64/yh59slHVv9ahO9UIev4JZusOLG/g=
+github.com/moby/sys/userns v0.1.0/go.mod h1:IHUYgu/kao6N8YZlp9Cf444ySSvCmDlmzUcYfDHOl28=
+github.com/opencontainers/runtime-spec v1.2.0 h1:z97+pHb3uELt/yiAWD691HNHQIF07bE7dzrbT927iTk=
+github.com/opencontainers/runtime-spec v1.2.0/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
+github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 h1:onHthvaw9LFnH4t2DcNVpwGmV9E1BkGknEliJkfwQj0=
+github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58/go.mod h1:DXv8WO4yhMYhSNPKjeNKa5WY9YCIEBRbNzFFPJbWO6Y=
 github.com/pierrec/lz4/v4 v4.1.22 h1:cKFw6uJDK+/gfw5BcDL0JL5aBsAFdsIT18eRtLj7VIU=
 github.com/pierrec/lz4/v4 v4.1.22/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
+github.com/prashantv/gostub v1.1.0 h1:BTyx3RfQjRHnUWaGF9oQos79AlQ5k8WNktv7VGvVH4g=
+github.com/prashantv/gostub v1.1.0/go.mod h1:A5zLQHz7ieHGG7is6LLXLz7I8+3LZzsrV0P1IAHhP5U=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
 github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
+github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 h1:G/FZtUu7a6NTWl3KUHMV9jkLAh/Rvtf03NWMHaEDl+E=
+github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
+github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
+github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/twmb/franz-go v1.20.4 h1:1wTvyLTOxS0oJh5ro/DVt2JHVdx7/kGNtmtFhbcr0O0=
@@ -39,14 +80,29 @@ github.com/twmb/franz-go/pkg/kmsg v1.12.0 h1:CbatD7ers1KzDNgJqPbKOq0Bz/WLBdsTH75
 github.com/twmb/franz-go/pkg/kmsg v1.12.0/go.mod h1:+DPt4NC8RmI6hqb8G09+3giKObE6uD2Eya6CfqBpeJY=
 go.opentelemetry.io/otel v1.38.0 h1:RkfdswUDRimDg0m2Az18RKOsnI8UDzppJAtj01/Ymk8=
 go.opentelemetry.io/otel v1.38.0/go.mod h1:zcmtmQ1+YmQM9wrNsTGV/q/uyusom3P8RxwExxkZhjM=
+go.uber.org/automaxprocs v1.6.0 h1:O3y2/QNTOdbF+e/dpXNNW7Rx2hZ4sTIPyybbxyNqTUs=
+go.uber.org/automaxprocs v1.6.0/go.mod h1:ifeIMSnPZuznNm6jmdzmU3/bfk01Fe2fotchwEFJ8r8=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+go.unistack.org/micro-codec-jsonpb/v3 v3.10.6 h1:9vZGETgEqysuz+ZPyph772uTHaQbRFkAwR/3Zr1+ckk=
+go.unistack.org/micro-codec-jsonpb/v3 v3.10.6/go.mod h1:sUXFkjeDz7FE+Zj2zEbVROMxhxIdQnp0VslUylZSzaY=
+go.unistack.org/micro-codec-proto/v3 v3.10.3 h1:Olny5WDBl+RhrzEPzm29wtCK/a1d4Ife2hkL2jR5MZs=
+go.unistack.org/micro-codec-proto/v3 v3.10.3/go.mod h1:tMt+0xZAl7rnoLEs13TIN6ycG1s8DlTGTN8m79sapQY=
 go.unistack.org/micro-proto/v3 v3.4.1 h1:UTjLSRz2YZuaHk9iSlVqqsA50JQNAEK2ZFboGqtEa9Q=
 go.unistack.org/micro-proto/v3 v3.4.1/go.mod h1:okx/cnOhzuCX0ggl/vToatbCupi0O44diiiLLsZ93Zo=
+go.unistack.org/micro-wrapper-requestid/v3 v3.9.4 h1:P3guOZmD10fW0OT7ZiqAXD95WgYyb8WpAZ9MLTmfBiU=
+go.unistack.org/micro-wrapper-requestid/v3 v3.9.4/go.mod h1:+2+dT3tqgUCmQL63VGqtUrCz30uXc2G3MQHaOvVDeLI=
 go.unistack.org/micro/v3 v3.11.48 h1:lHJYSHU2z1TTcuswItGwG7cZXN6n04EFqY7lk/0gA7w=
 go.unistack.org/micro/v3 v3.11.48/go.mod h1:fDQ8Mu9wubaFP0L8hNQlpzHiEnWN0wbOlawN9HYo0N4=
 golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
 golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
+golang.org/x/exp v0.0.0-20241210194714-1829a127f884 h1:Y/Mj/94zIQQGHVSv1tTtQBDaQaJe62U9bkDZKKyhPCU=
+golang.org/x/exp v0.0.0-20241210194714-1829a127f884/go.mod h1:qj5a5QZpwLU2NLQudwIN5koi3beDhSAlJwa67PuM98c=
 golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
 golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
+golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
 golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
@@ -60,5 +116,6 @@ google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

kgo_test.go

@@ -2,6 +2,8 @@ package kgo_test
 
 import (
 	"context"
+	"crypto/tls"
+	"fmt"
 	"os"
 	"sync/atomic"
 	"testing"
@@ -11,9 +13,15 @@ import (
 	"github.com/twmb/franz-go/pkg/kfake"
 	kg "github.com/twmb/franz-go/pkg/kgo"
 	kgo "go.unistack.org/micro-broker-kgo/v3"
+	jsonpb "go.unistack.org/micro-codec-jsonpb/v3"
+	proto "go.unistack.org/micro-codec-proto/v3"
+	requestid "go.unistack.org/micro-wrapper-requestid/v3"
+	"go.unistack.org/micro/v3"
 	"go.unistack.org/micro/v3/broker"
+	"go.unistack.org/micro/v3/client"
 	"go.unistack.org/micro/v3/logger"
 	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/server"
 )
 
 var (
@@ -32,24 +40,92 @@ func TestMain(m *testing.M) {
 	os.Exit(m.Run())
 }
 
-func helperCreateBroker() *kgo.Broker {
+func helperCreateBroker(t *testing.T) *kgo.Broker {
+	t.Helper()
 	b := kgo.NewBroker(
 		broker.Addrs(cluster.ListenAddrs()...),
 		kgo.CommitInterval(5*time.Second),
 		kgo.Options(kg.ClientID("test"), kg.FetchMaxBytes(10*1024*1024),
 			kg.AllowAutoTopicCreation(),
 		),
+		kgo.CommitInterval(1*time.Second),
+		broker.ErrorHandler(func(event broker.Event) error {
+			msg := event.Message()
+			log := logger.DefaultLogger.
+				Fields("topic", event.Topic(),
+					"header", msg.Header,
+					"body", msg.Body)
+			err := event.Ack()
+
+			if err != nil {
+				log.Fields("ack_error", err).Error(context.Background(), fmt.Sprintf("brokerHandlerErr: Ack error | %v", event.Error()))
+				return err
+			}
+
+			log.Error(context.Background(), fmt.Sprintf("brokerHandlerErr: %v", event.Error()))
+
+			return nil
+		}),
 	)
 
 	return b
 }
 
+func helperCreateService(t *testing.T, ctx context.Context, b *kgo.Broker) micro.Service {
+	t.Helper()
+
+	rh := requestid.NewHook()
+
+	sopts := []server.Option{
+		server.Name("test"),
+		server.Version("latest"),
+		server.Context(ctx),
+		server.Codec("application/json", jsonpb.NewCodec()),
+		server.Codec("application/protobuf", proto.NewCodec()),
+		server.Codec("application/grpc", proto.NewCodec()),
+		server.Codec("application/grpc+proto", proto.NewCodec()),
+		server.Codec("application/grpc+json", jsonpb.NewCodec()),
+		server.Broker(b),
+		server.Hooks(
+			server.HookHandler(rh.ServerHandler),
+			server.HookSubHandler(rh.ServerSubscriber),
+		),
+	}
+
+	copts := []client.Option{
+		client.Codec("application/json", jsonpb.NewCodec()),
+		client.Codec("application/protobuf", proto.NewCodec()),
+		client.Codec("application/grpc", proto.NewCodec()),
+		client.Codec("application/grpc+proto", proto.NewCodec()),
+		client.Codec("application/grpc+json", jsonpb.NewCodec()),
+		client.ContentType("application/grpc"),
+		client.Retries(0),
+		client.TLSConfig(&tls.Config{InsecureSkipVerify: true}),
+		client.Broker(b),
+		client.Hooks(
+			client.HookPublish(rh.ClientPublish),
+			client.HookCall(rh.ClientCall),
+			client.HookBatchPublish(rh.ClientBatchPublish),
+			client.HookStream(rh.ClientStream),
+		),
+	}
+
+	return micro.NewService(
+		micro.Server(server.NewServer(sopts...)),
+		micro.Client(client.NewClient(copts...)),
+		micro.Broker(b),
+		micro.Context(ctx),
+		micro.Name("test"),
+		micro.Version("latest"),
+	)
+}
+
 func TestFail(t *testing.T) {
 	ctx := context.Background()
 	err := logger.DefaultLogger.Init(logger.WithLevel(loglevel))
 	require.Nil(t, err)
 
-	b := helperCreateBroker()
+	b := helperCreateBroker(t)
 
 	t.Logf("broker init")
 	require.Nil(t, b.Init())
@@ -109,7 +185,7 @@ func TestFail(t *testing.T) {
 
 func TestConnect(t *testing.T) {
 	ctx := context.TODO()
-	b := helperCreateBroker()
+	b := helperCreateBroker(t)
 
 	require.Nil(t, b.Init())
 
@@ -121,7 +197,7 @@ func TestPubSub(t *testing.T) {
 	err := logger.DefaultLogger.Init(logger.WithLevel(loglevel))
 	require.Nil(t, err)
 
-	b := helperCreateBroker()
+	b := helperCreateBroker(t)
 
 	require.Nil(t, b.Init())
 	require.Nil(t, b.Connect(ctx))

subscriber.go

@@ -139,7 +139,11 @@ func (s *Subscriber) poll(ctx context.Context) {
 
 			fetches.EachPartition(func(p kgo.FetchTopicPartition) {
 				tps := tp{p.Topic, p.Partition}
-				s.consumers[tps].recs <- p
+				s.mu.Lock()
+				if c := s.consumers[tps]; c != nil {
+					c.recs <- p
+				}
+				s.mu.Unlock()
 			})
 			s.c.AllowRebalance()
 		}
@@ -157,6 +161,7 @@ func (s *Subscriber) killConsumers(ctx context.Context, lost map[string][]int32)
 			pc, ok := s.consumers[tps]
 			if ok {
 				delete(s.consumers, tps)
+				close(pc.quit)
 			}
 			s.mu.Unlock()
 			if !ok || pc == nil {
@@ -167,8 +172,6 @@ func (s *Subscriber) killConsumers(ctx context.Context, lost map[string][]int32)
 				s.kopts.Logger.Debug(ctx, fmt.Sprintf("[kgo] killing consumer topic %s partition %d", topic, partition))
 			}
 
-			close(pc.quit)
-
 			wg.Add(1)
 			go func(c *consumer, t string, p int32) {
 				defer wg.Done()

tombstone_test.go

@@ -0,0 +1,109 @@
+package kgo_test
+
+import (
+	"context"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	kg "github.com/twmb/franz-go/pkg/kgo"
+	"go.unistack.org/micro/v3"
+	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v3/server"
+)
+
+func TestSubscriberHandlesTombstoneMessages(t *testing.T) {
+	ctx := context.Background()
+	err := logger.DefaultLogger.Init(logger.WithLevel(loglevel))
+	require.Nil(t, err)
+
+	cl := cluster
+	_ = cl
+
+	b := helperCreateBroker(t)
+	require.Nil(t, b.Init())
+	require.Nil(t, b.Connect(ctx))
+	defer func() {
+		require.Nil(t, b.Disconnect(ctx))
+	}()
+
+	svc := helperCreateService(t, ctx, b)
+	require.Nil(t, svc.Init())
+
+	var (
+		msgsPublished = 1000
+		done          = make(chan bool, 1)
+		counterMsgs   = atomic.Int64{}
+		topicName     = "test.tombstone.topic"
+
+		// INCORRECT: func(ctx context.Context, req any) error
+		fnHandler = func(ctx context.Context, req *codec.Frame) error {
+			counterMsgs.Add(1)
+			return nil
+		}
+	)
+
+	err = micro.RegisterSubscriber(
+		topicName,
+		svc.Server(),
+		fnHandler,
+		server.SubscriberQueue("queue"),
+		server.SubscriberAck(true),
+		server.SubscriberBodyOnly(true),
+	)
+	require.Nil(t, err)
+
+	{ // PUBLISH tombstones via franz-go client
+		client, err := kg.NewClient(
+			kg.SeedBrokers(cluster.ListenAddrs()...),
+			kg.AllowAutoTopicCreation(),
+		)
+		require.Nil(t, err)
+		defer client.Close()
+
+		var records []*kg.Record
+		for i := 0; i < msgsPublished; i++ {
+			records = append(records, &kg.Record{
+				Topic: topicName,
+				Key:   []byte("tombstone-key"),
+			})
+		}
+
+		results := client.ProduceSync(ctx, records...)
+		for _, r := range results {
+			require.Nil(t, r.Err)
+		}
+	}
+
+	require.Nil(t, svc.Start())
+
+	go func() {
+		require.Nil(t, svc.Run())
+	}()
+
+	ticker := time.NewTicker(2 * time.Minute)
+	defer ticker.Stop()
+
+	pticker := time.NewTicker(1 * time.Second)
+	defer pticker.Stop()
+
+	go func() {
+		for {
+			select {
+			case <-pticker.C:
+				if prc := counterMsgs.Load(); prc == int64(msgsPublished) {
+					t.Log("everything is read:", prc)
+					close(done)
+				} else {
+					t.Logf("processed %v of %v\n", prc, msgsPublished)
+				}
+			case <-ticker.C:
+				close(done)
+			}
+		}
+	}()
+	<-done
+	require.Nil(t, svc.Stop())
+}