Add release nodes of 2.6.2 docs (apache#8490)

* Add release nodes of 2.6.2 docs

Signed-off-by: xiaolong.ran <[email protected]>

* fix comments

Signed-off-by: xiaolong.ran <[email protected]>

site2/website/release-notes.md

@@ -7,6 +7,156 @@
 
 * [IO] If Function Authorization is enabled, users have to be given the source/sink entitlement to run them. See https://github.com/apache/pulsar/pull/7466
 
+### 2.6.2 &mdash; 2020-11-09 <a id=“2.6.2”></a>
+
+The following lists fixes and enhancements in the 2.6.2 release.
+
+#### Broker
+
+- [Broker] Catch throwable when start pulsar [7221](https://github.com/apache/pulsar/pull/7221)
+- [Broker] Protobuf-shaded package can not update version [7228](https://github.com/apache/pulsar/pull/7228)
+- [Broker] Check for null arguments in Namespaces Rest API [7247](https://github.com/apache/pulsar/pull/7247)
+- [Broker] Handle SubscriptionBusyException in resetCursor api [7335](https://github.com/apache/pulsar/pull/7335)
+- [Broker] Converted the namespace bundle unload into async operation [7364](https://github.com/apache/pulsar/pull/7364)
+- [Broker] Update Jersey to 2.31 [7515](https://github.com/apache/pulsar/pull/7515)
+- [Broker] Stop to dispatch when skip message temporally since Key_Shared consumer stuck on delivery [7553](https://github.com/apache/pulsar/pull/7553)
+- [Broker] Fix bug where producer for geo-replication is not closed when topic is unloaded [7735](https://github.com/apache/pulsar/pull/7735)
+- [Broker] Make resetting cursor in REST API asynchronous [7744](https://github.com/apache/pulsar/pull/7744)
+- [Broker] Reestablish namespace bundle ownership from false negative releasing and false positive acquiring [7773](https://github.com/apache/pulsar/pull/7773)
+- [Broker] make pulsar executor pool size configurable [7782](https://github.com/apache/pulsar/pull/7782)
+- [Broker] Redirect Get message by id request when broker not serve for the topic [7786](https://github.com/apache/pulsar/pull/7786)
+- [Broker] Make zk cache executor thread pool size configurable [7794](https://github.com/apache/pulsar/pull/7794)
+- [Broker] Implement toString() method for TopicMessageIdImpl class [7807](https://github.com/apache/pulsar/pull/7807)
+- [Broker] Fix pending batchIndexAcks bitSet batchSize in PersistentAcknowledgmentsGroupingTracker [7828](https://github.com/apache/pulsar/pull/7828)
+- [Broker] Fix deadlock when adding consumer [7841](https://github.com/apache/pulsar/pull/7841)
+- [Broker] Split message ranges by ledger ID and store them in individualDeletedMessages [7861](https://github.com/apache/pulsar/pull/7861)
+- [Broker]  Fix pulsar metrics providing wrong information [7905](https://github.com/apache/pulsar/pull/7905)
+- [Broker] Don't fail the health check request when trying to delete the previous subscription [7906](https://github.com/apache/pulsar/pull/7906)
+- [Broker] Add configuration to set number of channels per bookie [7910](https://github.com/apache/pulsar/pull/7910)
+- [Broker] Fix publish buffer of one ServerCnx calculated multi-times when check broker's publish buffer [7926](https://github.com/apache/pulsar/pull/7926)
+- [Broker] Add some logging to improve Authentication debugging and Fix typos in code "occured" -> "occurred" [7934](https://github.com/apache/pulsar/pull/7934)
+- [Broker] Fix NPE when acknowledge messages at the broker side [7937](https://github.com/apache/pulsar/pull/7937)
+- [Broker] Fix the wrong issuer url concatenate [7980](https://github.com/apache/pulsar/pull/7980)
+- [Broker] Upgrade the snakeyaml version to 1.26 [7994](https://github.com/apache/pulsar/pull/7994)
+- [Broker] Exclude vertx from bookkeeper-http package [7997](https://github.com/apache/pulsar/pull/7997)
+- [Broker] Check null point before setting auto read [7999](https://github.com/apache/pulsar/pull/7999)
+- [Broker] Fix IndexOutOfBoundsException in the KeyShared subscription when dispatching messages to consumers [8024](https://github.com/apache/pulsar/pull/8024)
+- [Broker] Upgrade jetty-util version to 9.4.31 [8035](https://github.com/apache/pulsar/pull/8035)
+- [Broker] Add replicated check to checkInactiveSubscriptions [8066](https://github.com/apache/pulsar/pull/8066)
+- [Broker] Add get-last-message-id admin for v1 api [8081](https://github.com/apache/pulsar/pull/8081)
+- [Broker] Fix client lookup hangs when broker restarts [8101](https://github.com/apache/pulsar/pull/8101)
+- [Broker] Should not cache the owner that does not belong to current server [8111](https://github.com/apache/pulsar/pull/8111)
+- [Broker] Support to specify multi ipv6 hosts in brokerServiceUrl [8120](https://github.com/apache/pulsar/pull/8120)
+- [Broker] Intercept messages to consumers and add intercept exception [8129](https://github.com/apache/pulsar/pull/8129)
+- [Broker] Add ChannelFutures utility class to pulsar-common [8137](https://github.com/apache/pulsar/pull/8137)
+- [Broker] Support Disable Replicated Subscriptions [8144](https://github.com/apache/pulsar/pull/8144)
+- [Broker] Fix error code returned to client when service unit is not ready [8147](https://github.com/apache/pulsar/pull/8147)
+- [Broker] Skip intercepting multipart requests [8156](https://github.com/apache/pulsar/pull/8156)
+- [Broker] Enable intercept filters only when interceptors are configured [8157](https://github.com/apache/pulsar/pull/8157)
+- [Broker] Clean inactive non-persistent subscriptions [8166](https://github.com/apache/pulsar/pull/8166)
+- [Broker] Add a new state for namespace-level TTL [8178](https://github.com/apache/pulsar/pull/8178)
+- [Broker] Fix peek messages failed with subscriptionName not exist [8182](https://github.com/apache/pulsar/pull/8182)
+- [Broker] Fix pulsar service close exception [8197](https://github.com/apache/pulsar/pull/8197)
+- [Broker] Use ThreadPoolExecutor instead of EventLoop [8208](https://github.com/apache/pulsar/pull/8208)
+- [Broker] Close ZK connections at end of metadata setup [8228](https://github.com/apache/pulsar/pull/8228)
+- [Broker] Delete associated ledgers before deleting cluster metadata [8244](https://github.com/apache/pulsar/pull/8244)
+- [Broker] Fix stuck lookup operations when the broker is starting up [8273](https://github.com/apache/pulsar/pull/8273)
+- [Broker] Fix Broker enters an infinite loop in ManagedLedgerImpl.asyncReadEntries [8284](https://github.com/apache/pulsar/pull/8284)
+- [Broker] Fix message TTL on Key_Shared subscription and Fix ordering issue when replay messages [8292](https://github.com/apache/pulsar/pull/8292)
+- [Broker] Fix race condition in updating readPosition in ManagedCursorImpl [8299](https://github.com/apache/pulsar/pull/8299)
+- [Broker] Refresh ZooKeeper-data cache in background to avoid deadlock and blocking IO on ZK thread [8304](https://github.com/apache/pulsar/pull/8304)
+- [Broker] Upgrade hdfs2 version to 2.8.5 [8319](https://github.com/apache/pulsar/pull/8319)
+- [Broker] Upgrade solr version to 8.6.3 [8328](https://github.com/apache/pulsar/pull/8328)
+- [Broker] Fix deadlock that occurred during topic ownership check [8406](https://github.com/apache/pulsar/pull/8406)
+
+#### Proxy
+
+- [Proxy] Add advertisedAddress config field to ProxyConfiguration [7542](https://github.com/apache/pulsar/pull/7542) 
+- [Proxy] Fix deadlock in pulsar proxy [7690](https://github.com/apache/pulsar/pull/7690)
+- [Proxy] Handle NPE while updating proxy stats [7766](https://github.com/apache/pulsar/pull/7766)
+- [Proxy] Fix the null exception when starting the proxy service [8019](https://github.com/apache/pulsar/pull/8019)
+- [Proxy] Add proxy plugin interface to support user defined additional servlet [8067](https://github.com/apache/pulsar/pull/8067)
+
+#### Pulsar SQL
+
+- [Pulsar SQL] Upgrade Presto version to 332 [7194](https://github.com/apache/pulsar/pull/7194)
+- [Pulsar SQL] Replace com.ning.asynchttpclient with org.asynchttpclient [8099](https://github.com/apache/pulsar/pull/8099)
+
+#### Java Client
+
+- [Java Client] Support input-stream for trustStore cert [7442](https://github.com/apache/pulsar/pull/7442)
+- [Java Client] Avoid subscribing the same topic again [7823](https://github.com/apache/pulsar/pull/7823)
+- [java Client] Add autoPartitionsUpdateInterval for producer and consumer [7840](https://github.com/apache/pulsar/pull/7840)
+- [Java Client] Avoid resolving address for sni-host + thread-safe connection creation [8062](https://github.com/apache/pulsar/pull/8062)
+- [Java Client] Websocket interface decode URL encoding [8072](https://github.com/apache/pulsar/pull/8072)
+- [Java Client] Always use SNI for TLS enabled Pulsar Java broker client [8117](https://github.com/apache/pulsar/pull/8117)
+- [Java Client] Improve timeout handling in ClientCnx to cover all remaining request types (GetLastMessageId, GetTopics, GetSchema, GetOrCreateSchema) [8149](https://github.com/apache/pulsar/pull/8149)
+- [Java Client] Fix ConsumerImpl memory leaks [8160](https://github.com/apache/pulsar/pull/8160)
+- [Java Client] Fix issue where paused consumer receives new message when reconnecting [8165](https://github.com/apache/pulsar/pull/8165)
+- [Java Client] Improve refactored client connection code [8177](https://github.com/apache/pulsar/pull/8177)
+- [Java Client] Add log level configuration in pulsar-client [8195](https://github.com/apache/pulsar/pull/8195)
+- [Java Client] Remove unnecessary locks [8207](https://github.com/apache/pulsar/pull/8207)
+- [Java Client] Fix AutoUpdatePartitionsInterval setting problem [8227](https://github.com/apache/pulsar/pull/8227)
+- [Java Client] Add read position when joining in the consumer stats [8274](https://github.com/apache/pulsar/pull/8274)
+- [Java Client] Support reset cursor to a batch index of the batching message [8285](https://github.com/apache/pulsar/pull/8285)
+- [Java Client] Support exclude the message when reset cursor by message ID [8306](https://github.com/apache/pulsar/pull/8306)
+- [Java Client] Increasing timeout for pulsar client io threads to shutdown [8316](https://github.com/apache/pulsar/pull/8316)
+- [Java Client] Support cancelling message & batch futures returned from Reader & Consumer [8326](https://github.com/apache/pulsar/pull/8326)
+- [Java Client] Disable batch receive timer for Readers [8381](https://github.com/apache/pulsar/pull/8381)
+- [Java Client] Fix pause does not work for new created consumer  [8387](https://github.com/apache/pulsar/pull/8387)
+
+#### CPP Client
+
+- [CPP Client] Wait for all seek operations completed [7216](https://github.com/apache/pulsar/pull/7216)
+- [CPP Client] Ensure parallel invocations of MultiTopicsConsumerImpl::subscribeAsync with the same topic name do not produce an error. [7691](https://github.com/apache/pulsar/pull/7691)
+- [CPP Client] Throw std::exception types [7798](https://github.com/apache/pulsar/pull/7798)
+- [CPP Client] Make clear() thread-safe [7862](https://github.com/apache/pulsar/pull/7862)
+- [CPP Client] Support key based batching [7996](https://github.com/apache/pulsar/pull/7996)
+- [CPP Client] The token endpoint should get from the well-known configuration [8006](https://github.com/apache/pulsar/pull/8006)
+- [CPP Client] Add Snappy library to Docker images for building C++ packages [8086](https://github.com/apache/pulsar/pull/8086)
+- [CPP Client] Add epoch for C++ client HandleBase to handle create producer timeout [8191](https://github.com/apache/pulsar/pull/8191)
+- [CPP Client] Fix some pending requests may never complete when broker's down [8232](https://github.com/apache/pulsar/pull/8232)
+- [CPP Client] Client is allocating buffer bigger than needed [8283](https://github.com/apache/pulsar/pull/8283)
+- [CPP Client] Client back-pressure is done on batches rather than number of messages [8331](https://github.com/apache/pulsar/pull/8331)
+- [CPP Client] Fix message id error when subscribing a single partition [8341](https://github.com/apache/pulsar/pull/8341)
+
+#### Python Client
+
+- [Python Client] Add python schema field default value [8122](https://github.com/apache/pulsar/pull/8122)
+- [Python Client] Expose schema version (of writerSchema) in Message [8173](https://github.com/apache/pulsar/pull/8173)
+
+#### Pulsar Functions
+
+- [Pulsar Functions] During Function update, cleanup should only happen for temp files that were generated [7201](https://github.com/apache/pulsar/pull/7201)
+- [Pulsar Functions] Have metadata tailer use its own thread for processing [7211](https://github.com/apache/pulsar/pull/7211)
+- [Pulsar Functions] Allow kubernetes runtime to customize function instance class path [7844](https://github.com/apache/pulsar/pull/7844)
+- [Pulsar Functions] SinkRecord adds an overridden method  [8038](https://github.com/apache/pulsar/pull/8038)
+- [Pulsar Functions] Set dryrun of KubernetesRuntime is null [8064](https://github.com/apache/pulsar/pull/8064)
+- [Pulsar Functions] Allow disabling forwarding source message properties [8158](https://github.com/apache/pulsar/pull/8158)
+- [Pulsar Functions] Missed dryRun on maintenance of secrets [8286](https://github.com/apache/pulsar/pull/8286)
+
+#### Pulsar Perf
+
+- [Pulsar Perf] Support setting message key [7989](https://github.com/apache/pulsar/pull/7989)
+- [Pulsar Perf] Make pulsar-perf ioThread number configurable [8090](https://github.com/apache/pulsar/pull/8090)
+
+#### Pulsar Admin
+
+- [Pulsar Admin] Support initial namespace of the cluster without startup the broker [7434](https://github.com/apache/pulsar/pull/7434)
+- [Pulsar Admin] Fix some params on consumer broken by #4400 (regex, initialSouscriptionPosition) [7795](https://github.com/apache/pulsar/pull/7795)
+- [Pulsar Admin] Return more informative error message when trying to create subscription on non-persistent through Rest API or pulsar-admin CLI [7831](https://github.com/apache/pulsar/pull/7831)
+- [Pulsar Admin] Add cli command to get last message Id [8082](https://github.com/apache/pulsar/pull/8082)
+- [Pulsar Admin] Support delete all data associated with a cluster [8133](https://github.com/apache/pulsar/pull/8133)
+- [Pulsar Admin] Support delete schema ledgers when delete topics [8167](https://github.com/apache/pulsar/pull/8167)
+- [Pulsar Admin] Add command to delete a cluster's metadata from ZK [8169](https://github.com/apache/pulsar/pull/8169)
+- [Pulsar Admin] Support reset cursor to a batch index for Pulsar Admin [8329](https://github.com/apache/pulsar/pull/8329)
+
+#### Tiered Storage
+
+- [Tiered Storage] Refactored JCloud Tiered Storage [6335](https://github.com/apache/pulsar/pull/6335)
+- [Tiered Storage] Remove duplicate updates [8198](https://github.com/apache/pulsar/pull/8198)
+- [Tiered Storage] Make the field name in `OffloadPolicies` match with config file [8310](https://github.com/apache/pulsar/pull/8310)
+
 ### 2.6.1 &mdash; 2020-08-21 <a id=“2.6.1”></a>
 
 The following lists fixes and enhancements in 2.6.1 release.