* By default, auto configure the size of Bookie read/write cache

* Updated ref docs

[pulsar-function] fix broken backward compatibility with v1-namespace while registering function (#4224)

The sendTimer_ may not be initialized if connection doesn't come up
correctly.

* Revert "[cpp client] implement reference count for close() (#3863)"

This reverts commit ee98e8b2.

* Revert Prevent dup consumers and refCount for cpp client

Revert "[cpp client] Bugfix prevent dup consumer for same topic subscription"
Revert "[Issue #3226][cpp client] Prevent dup consumers on same client cnx"

This reverts commit fff02e2a.
This reverts commit 762e0ab9.

* Revert "Feature - implement reference count for ConsumerImpl (#3795)"

This reverts commit ff4db8db.

* Revert Prevent dup consumers and refCount for java client

Revert "Prevent dup consumers on same client cnx with shared subscription"
Revert "[java client] Bugfix prevent dup consumers for same topic subscribe"

This reverts commit 231db030.
This reverts commit fb5dcd9a.

### Motivation
Function worker uses bookie and zookeeper to store function's executable. However, function doesn't support authentication while connecting to bookie so, dbLog initialize fails when bookie requires auth&auth.

### Modification
Add bk-client authentication param to worker-config.

* Optimizing performance for download

* fixing update and create

* fix upload

* remove commented out code

* remove blank lines

* fix error messages

* fix for sources and sinks

* fix getting exception

* fix auth headers

* cleaning up

* fix print messages

* Set actual topic name to partitioned consumer

* Change dummy topic name prefix

* fix bug in source and sink cli update

* fix import

* fix logic

* fix tests

### Motivation

Only initialize factory once in the beginning

When a python functions instance is started with state enabled, it
crashes because the state client cannot connect to the state
endpoints. This is because the state client is *never* given the state
endpoints, so there's no way it ever could connect.

Fixes #3987 

### Motivation

Config will not appear null when create tenant use pulsar-admin create foo3, but use the following command, config is null.
```
curl -X PUT http://localhost:8080/admin/v2/tenants/foo3
```

### Modifications

Handle config is null when create tenant use curl.

### Verifying this change
Test pass
```
curl -X PUT http://localhost:8080/admin/v2/tenants/foo3
curl -X GET http://localhost:8080/admin/v2/tenants/foo3
{"adminRoles":[],"allowedClusters":[]}
```

We require a certain version of bookkeeper client to operate python function state correctly.

Improve error handling for triggering function when input data does not conform with input topic schema (#3995)

*Motivation*

Trying to fix #3975

When a reset of a cursor is performed with some timestamp on a non-durable
consumer the message finder will fail with null pointer exception due to
`cursor.getName()` being null.

*Modifications*

  - Add method overloading for `newNonDurableCursor()` with subscription name.
  - Fix method getNonDurableSubscription to call `newNonDurableCursor()` with
    proper subscription name
  - Add test to assert issue.

### Motivation

Log Producer/Consumer Id when broker logs "Producer/consumer is already connected" to help in debugging when client is keep failing to create producer and broker is keep logging  the same error.

* Fixed conversion of unix timestamp to golang time (#3659)

* fix cannot use size (type _Ctype_int) as type _Ctype_ulong
Signed-off-by: Nxiaolong.ran <ranxiaolong716@gmail.com>

*Motivation*

AlwaysCompatible flag doesn't work in 2.3.1 because the flag is using NeverSchemaValidator

*Modifications*

Change to use AlwaysSchemaValidator

* Fixed issue with Authorization header missing after client gets redirected

* Use AsyncHttpClient instead

* Fixed merge issue

* Convert headers after body to not break multipart encoding

* Fixed tests

* Added missing property file for AsyncHttpClient in the shaded jar

* Moved ahc.properties into org.asynchttpclient.config

* One value was missing from properties file

* Also add default file for non-shaded scenario

* Another missing AHC config key

* Print topic load exception

* Removed constraint on unit tests executor

* Exposing getSchemaVersion in the client by making it public.

* Implemented getSchemaVersion in TopicMessageImpl.java

* Changed the release version