Pulsar Feature Matrix (Client + Function)

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T
1	This file was created by Anonymitaet (Yu). It was last updated by Yu, momo-jun, RobertIndie, and Baodi on Apr 10, 2023.
2	✅ means supported. ❌ means not supported yet. 🔧 means WIP.
3
4		Feature		Java		C++		Go		Python		NodeJS		WebSocket		C# / DotPulsar		REST		.NET (C#/F#/VB)
5				Code	Doc	Code	Doc	Code	Doc	Code	Doc	Code	Doc	Code	Doc	Code	Doc	Code	Doc	Code

6
7	Client	TLS	Encryption	✅	✅	✅	✅	✅	✅	✅		✅	✅			✅	✅	❌		✅
8		TLS	Hostname verfication	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅			✅	✅	❌		✅
9		Authentication	JWT	✅	✅	✅	✅	✅	✅	✅	✅	✅				✅	✅	❌		✅
10			m-TLS	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅			✅	✅	❌		✅
11			Kerberos	✅	✅													❌		❌
12			OAuth2	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅					❌		✅
13			Athenz	✅	✅			✅												❌
14			HTTP basic	✅	✅	✅	✅	✅	✅	✅	✅									❌
15		Multi-Hosts Service URL		✅	✅	✅		✅		✅		✅						❌		✅
16		Proxy		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		❌		✅
17		SNI Routing		✅		✅		✅		✅		✅						❌		✅
18		Statistics		✅														❌		✅
19		Transactions		✅				🔧 ✅ Go 0.10 ≥ Pulsar 2.9.5										❌		✅
22		Memory Limits		✅		🔧		✅ Go 0.10 Server-indenpendent		🔧		🔧								https://github.com/fsprojects/pulsar-client-dotnet/issues/169
23		ServiceUrlProvider		✅		🔧		🔧		🔧		🔧								❌
24		Cluster-level auto failover		✅	🔧	🔧		🔧		🔧		🔧								❌
25		Auto release client useless connections		✅																❌
26		Notifications for faster topic discovery		✅																❌
27
28	Producer	Partitioned Topics		✅	✅	✅		✅	✅	✅		✅	✅	✅	✅	✅ Support partitioned topics for producers		✅		✅
29		Batching		✅	✅	✅		✅	✅	✅		✅	✅	✅	✅					✅
30		Chunking		✅	✅	✅	✅	✅	✅	✅		✅								✅
31		Compression	LZ4	✅	✅	✅		✅	✅	✅		✅	✅	✅	✅	✅				✅
32			ZLIB	✅	✅	✅		✅		✅		✅	✅			✅				✅
33			ZSTD	✅	✅	✅		✅		✅		✅				✅				✅
34			SNAPPY	✅	✅	✅		🔧		✅		✅				✅				✅
35		Schema	Primitive	✅	✅	✅	✅	✅	✅	✅	✅	✅	🔧			✅		✅		✅
36			Avro	✅	✅	✅	✅	✅	✅	✅	✅	✅	🔧				✅	✅		✅
37			Json	✅	✅	✅	✅	✅	✅	✅	✅	✅	🔧					✅		✅
38			Protobuf	✅	✅	✅	✅	✅	✅											✅
39			protobuf-native	✅	✅	✅	✅	✅												✅
40			Native Avro	✅	✅															❌
41			KeyValue	✅	✅	✅	✅	🔧		🔧		🔧		✅	✅			✅		✅
42			AutoSchema	✅	🔧															✅
43			SendMsgWithDifferentSchema	✅																❌
44		Multi-version Schema		✅				✅												✅
45		User-defined properties		✅		✅		✅	✅	✅		✅		✅		✅		✅		❌
46		Key-based batcher		✅		✅		✅		✅		🔧								✅
47		Delayed/scheduled messages		✅	✅	✅		✅	✅	✅		✅				✅		✅		✅
48		Interceptors		✅	✅	✅ C++ 3.2 Server independent		✅		🔧		🔧								✅
49		Message Router		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅					✅
50		End-to-end Encryption		✅	✅	✅		✅		✅		✅								✅
51		BlockIfQueueFull		✅		✅		✅		✅		✅								✅
52		AccessMode	Shared	✅	✅	✅ C++ 3.2 Pulsar 2.8.x		🔧		🔧		🔧								❌
53			Exclusive	✅	✅	✅ C++ 3.2 Pulsar 2.8.x		🔧		🔧		🔧								❌
54			ExclusiveWithFencing	✅		✅ C++ 3.2 Pulsar 2.8.x		🔧		🔧		🔧								❌
55			WaitForExclusive	✅	✅	✅ C++ 3.2 Pulsar 2.8.x		🔧		🔧		🔧								❌
56		Transactions		✅				🔧 ✅ Go 0.10 Pulsar 2.9.5												✅
57
58	Consumer	Partitioned Topics		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅					✅
59		Batching		✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅				✅
60		Chunking		✅	✅	✅	✅	✅		✅		✅								✅
61		Compression	LZ4	✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅				✅
62			ZLIB	✅	✅	✅		✅		✅		✅				✅				✅
63			ZSTD	✅	✅	✅		✅		✅		✅				✅				✅
64			SNAPPY	✅	✅	✅		🔧		✅		✅				✅				✅
65		Compacted Topics		✅	✅	✅ Pulsar 2.8.x	✅	✅	✅	✅	✅	✅	✅			✅				✅
66		Multiple Topics		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅							✅
67		Regex Consumer		✅		✅		✅	✅	✅		✅								✅
68		Seek	MessageID	✅		✅		✅	✅	✅	✅ https://pulsar.apache.org/api/python/2.10.0/pulsar.html#Consumer.seek					✅				✅
69		Seek	Timestamp	✅		✅		✅	✅	✅		✅	✅			✅				✅
70		Schema	Primitive	✅	✅	✅ Pulsar 2.8.x		✅		✅	✅	✅	🔧			✅				✅
71			Avro	✅	✅	✅ Pulsar 2.8.x	✅	✅		✅	✅	✅	🔧				✅			✅
72			Json	✅	✅	✅ Pulsar 2.8.x		✅		✅	✅	✅	🔧							✅
73			Protobuf	✅	✅	✅ Pulsar 2.8.x		✅												✅
74			protobuf-native																	✅
75			Native Avro																	❌
76			KeyValue	✅	✅	✅ Pulsar 2.8.x	✅	🔧		🔧		🔧		✅	✅					✅
77			AutoSchema	✅																✅
78		Multi-version Schema		✅																✅
79		User-defined properties		✅		✅		✅	✅	✅		✅	✅			✅				❌
80		hasMessageAvailable						✅												✅
81		Subscription Type	Exclusive	✅	✅	✅		✅		✅		✅		✅		✅				✅
82			Failover	✅	✅	✅		✅		✅		✅		✅		✅				✅
83			Shared	✅	✅	✅		✅		✅		✅		✅		✅				✅
84			Key_Shared	✅	✅	✅		✅		✅		✅		✅		✅				✅
85		Subscription Mode	Durable	✅	✅			✅												✅
86		Subscription Mode	Non-durable	✅	✅			✅												✅
87		Interceptors		✅	✅	✅ C++ 3.2 Server independent		✅		🔧		🔧								✅
88		Ack	Ack Individual	✅		✅		✅		✅		✅				✅				✅
89			Ack Cumulative	✅		✅		✅		✅		✅	✅ https://pulsar.apache.org/docs/en/next/client-libraries-node/#consumer-operations			✅				✅
90			Batch-Index Ack	✅		🔧		🔧		🔧		🔧								✅
91			Wait for response	ackReceiptEnabled		✅ C++ 3.2 Pulsar 2.8.x setAckReceiptEnabled / isAckReceiptEnabled
92		Ack Timeout		✅		✅		❌ (not supported)		✅		✅								✅
93		Negative Ack	Negative Ack	✅	✅	✅		✅	✅	✅		✅	✅							✅
94		Negative Ack	Negative acknowledgment backoff	✅	✅	🔧														❌
95		Retry letter topic		✅	✅			✅	✅											✅
96		Dead Letter Policy		✅	✅			✅						✅	✅					✅
97		End-to-end Encryption		✅		✅		✅		✅		✅								✅
98		SubscriptionInitialPosition		✅		✅		✅		✅		✅				✅				✅
99		Batch Receiving Messages		✅	✅	✅		🔧		✅		🔧								✅
100		Transaction						🔧 ✅ Go 0.10 Pulsar 2.9.5
101
102	Reader	Partitioned Topics		✅	✅	🔧		✅	✅	🔧		🔧		✅	✅					✅