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href="#2020-11-09" class="hash-link" aria-label="Direct link to 2020-11-09" title="Direct link to 2020-11-09"></a></h4><p>The following lists fixes and enhancements in the 2.6.2 release.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="broker">Broker<a href="#broker" class="hash-link" aria-label="Direct link to Broker" title="Direct link to Broker"></a></h4><ul><li>[Broker]<!-- --> Catch throwable when start pulsar <a href="https://github.com/apache/pulsar/pull/7221" target="_blank" rel="noopener noreferrer">7221</a></li><li>[Broker]<!-- --> Protobuf-shaded package can not update version <a href="https://github.com/apache/pulsar/pull/7228" target="_blank" rel="noopener noreferrer">7228</a></li><li>[Broker]<!-- --> Check for null arguments in Namespaces Rest API <a href="https://github.com/apache/pulsar/pull/7247" target="_blank" rel="noopener noreferrer">7247</a></li><li>[Broker]<!-- --> Handle SubscriptionBusyException in resetCursor api <a href="https://github.com/apache/pulsar/pull/7335" target="_blank" rel="noopener noreferrer">7335</a></li><li>[Broker]<!-- --> Converted the namespace bundle unload into async operation <a href="https://github.com/apache/pulsar/pull/7364" target="_blank" rel="noopener noreferrer">7364</a></li><li>[Broker]<!-- --> Update Jersey to 2.31 <a href="https://github.com/apache/pulsar/pull/7515" target="_blank" rel="noopener noreferrer">7515</a></li><li>[Broker]<!-- --> Stop to dispatch when skip message temporally since Key_Shared consumer stuck on delivery <a href="https://github.com/apache/pulsar/pull/7553" target="_blank" rel="noopener noreferrer">7553</a></li><li>[Broker]<!-- --> Fix bug where producer for geo-replication is not closed when topic is unloaded <a href="https://github.com/apache/pulsar/pull/7735" target="_blank" rel="noopener noreferrer">7735</a></li><li>[Broker]<!-- --> Make resetting cursor in REST API asynchronous <a href="https://github.com/apache/pulsar/pull/7744" target="_blank" rel="noopener noreferrer">7744</a></li><li>[Broker]<!-- --> Reestablish namespace bundle ownership from false negative releasing and false positive acquiring <a href="https://github.com/apache/pulsar/pull/7773" target="_blank" rel="noopener noreferrer">7773</a></li><li>[Broker]<!-- --> make pulsar executor pool size configurable <a href="https://github.com/apache/pulsar/pull/7782" target="_blank" rel="noopener noreferrer">7782</a></li><li>[Broker]<!-- --> Redirect Get message by id request when broker not serve for the topic <a href="https://github.com/apache/pulsar/pull/7786" target="_blank" rel="noopener noreferrer">7786</a></li><li>[Broker]<!-- --> Make zk cache executor thread pool size configurable <a href="https://github.com/apache/pulsar/pull/7794" target="_blank" rel="noopener noreferrer">7794</a></li><li>[Broker]<!-- --> Implement toString() method for TopicMessageIdImpl class <a href="https://github.com/apache/pulsar/pull/7807" target="_blank" rel="noopener noreferrer">7807</a></li><li>[Broker]<!-- --> Fix pending batchIndexAcks bitSet batchSize in PersistentAcknowledgmentsGroupingTracker <a href="https://github.com/apache/pulsar/pull/7828" target="_blank" rel="noopener noreferrer">7828</a></li><li>[Broker]<!-- --> Fix deadlock when adding consumer <a href="https://github.com/apache/pulsar/pull/7841" target="_blank" rel="noopener noreferrer">7841</a></li><li>[Broker]<!-- --> Split message ranges by ledger ID and store them in individualDeletedMessages <a href="https://github.com/apache/pulsar/pull/7861" target="_blank" rel="noopener noreferrer">7861</a></li><li>[Broker]<!-- --> Fix pulsar metrics providing wrong information <a href="https://github.com/apache/pulsar/pull/7905" target="_blank" rel="noopener noreferrer">7905</a></li><li>[Broker]<!-- --> Don't fail the health check request when trying to delete the previous subscription <a href="https://github.com/apache/pulsar/pull/7906" target="_blank" rel="noopener noreferrer">7906</a></li><li>[Broker]<!-- --> Add configuration to set number of channels per bookie <a href="https://github.com/apache/pulsar/pull/7910" target="_blank" rel="noopener noreferrer">7910</a></li><li>[Broker]<!-- --> Fix publish buffer of one ServerCnx calculated multi-times when check broker's publish buffer <a href="https://github.com/apache/pulsar/pull/7926" target="_blank" rel="noopener noreferrer">7926</a></li><li>[Broker]<!-- --> Add some logging to improve Authentication debugging and Fix typos in code "occured" -> "occurred" <a href="https://github.com/apache/pulsar/pull/7934" target="_blank" rel="noopener noreferrer">7934</a></li><li>[Broker]<!-- --> Fix NPE when acknowledge messages at the broker side <a href="https://github.com/apache/pulsar/pull/7937" target="_blank" rel="noopener noreferrer">7937</a></li><li>[Broker]<!-- --> Fix the wrong issuer url concatenate <a href="https://github.com/apache/pulsar/pull/7980" target="_blank" rel="noopener noreferrer">7980</a></li><li>[Broker]<!-- --> Upgrade the snakeyaml version to 1.26 <a href="https://github.com/apache/pulsar/pull/7994" target="_blank" rel="noopener noreferrer">7994</a></li><li>[Broker]<!-- --> Exclude vertx from bookkeeper-http package <a href="https://github.com/apache/pulsar/pull/7997" target="_blank" rel="noopener noreferrer">7997</a></li><li>[Broker]<!-- --> Check null point before setting auto read <a href="https://github.com/apache/pulsar/pull/7999" target="_blank" rel="noopener noreferrer">7999</a></li><li>[Broker]<!-- --> Fix IndexOutOfBoundsException in the KeyShared subscription when dispatching messages to consumers <a href="https://github.com/apache/pulsar/pull/8024" target="_blank" rel="noopener noreferrer">8024</a></li><li>[Broker]<!-- --> Upgrade jetty-util version to 9.4.31 <a href="https://github.com/apache/pulsar/pull/8035" target="_blank" rel="noopener noreferrer">8035</a></li><li>[Broker]<!-- --> Add replicated check to checkInactiveSubscriptions <a href="https://github.com/apache/pulsar/pull/8066" target="_blank" rel="noopener noreferrer">8066</a></li><li>[Broker]<!-- --> Add get-last-message-id admin for v1 api <a href="https://github.com/apache/pulsar/pull/8081" target="_blank" rel="noopener noreferrer">8081</a></li><li>[Broker]<!-- --> Fix client lookup hangs when broker restarts <a href="https://github.com/apache/pulsar/pull/8101" target="_blank" rel="noopener noreferrer">8101</a></li><li>[Broker]<!-- --> Should not cache the owner that does not belong to current server <a href="https://github.com/apache/pulsar/pull/8111" target="_blank" rel="noopener noreferrer">8111</a></li><li>[Broker]<!-- --> Support to specify multi ipv6 hosts in brokerServiceUrl <a href="https://github.com/apache/pulsar/pull/8120" target="_blank" rel="noopener noreferrer">8120</a></li><li>[Broker]<!-- --> Intercept messages to consumers and add intercept exception <a href="https://github.com/apache/pulsar/pull/8129" target="_blank" rel="noopener noreferrer">8129</a></li><li>[Broker]<!-- --> Add ChannelFutures utility class to pulsar-common <a href="https://github.com/apache/pulsar/pull/8137" target="_blank" rel="noopener noreferrer">8137</a></li><li>[Broker]<!-- --> Support Disable Replicated Subscriptions <a href="https://github.com/apache/pulsar/pull/8144" target="_blank" rel="noopener noreferrer">8144</a></li><li>[Broker]<!-- --> Fix error code returned to client when service unit is not ready <a href="https://github.com/apache/pulsar/pull/8147" target="_blank" rel="noopener noreferrer">8147</a></li><li>[Broker]<!-- --> Skip intercepting multipart requests <a href="https://github.com/apache/pulsar/pull/8156" target="_blank" rel="noopener noreferrer">8156</a></li><li>[Broker]<!-- --> Enable intercept filters only when interceptors are configured <a href="https://github.com/apache/pulsar/pull/8157" target="_blank" rel="noopener noreferrer">8157</a></li><li>[Broker]<!-- --> Clean inactive non-persistent subscriptions <a href="https://github.com/apache/pulsar/pull/8166" target="_blank" rel="noopener noreferrer">8166</a></li><li>[Broker]<!-- --> Add a new state for namespace-level TTL <a href="https://github.com/apache/pulsar/pull/8178" target="_blank" rel="noopener noreferrer">8178</a></li><li>[Broker]<!-- --> Fix peek messages failed with subscriptionName not exist <a href="https://github.com/apache/pulsar/pull/8182" target="_blank" rel="noopener noreferrer">8182</a></li><li>[Broker]<!-- --> Fix pulsar service close exception <a href="https://github.com/apache/pulsar/pull/8197" target="_blank" rel="noopener noreferrer">8197</a></li><li>[Broker]<!-- --> Use ThreadPoolExecutor instead of EventLoop <a href="https://github.com/apache/pulsar/pull/8208" target="_blank" rel="noopener noreferrer">8208</a></li><li>[Broker]<!-- --> Close ZK connections at end of metadata setup <a href="https://github.com/apache/pulsar/pull/8228" target="_blank" rel="noopener noreferrer">8228</a></li><li>[Broker]<!-- --> Delete associated ledgers before deleting cluster metadata <a href="https://github.com/apache/pulsar/pull/8244" target="_blank" rel="noopener noreferrer">8244</a></li><li>[Broker]<!-- --> Fix stuck lookup operations when the broker is starting up <a href="https://github.com/apache/pulsar/pull/8273" target="_blank" rel="noopener noreferrer">8273</a></li><li>[Broker]<!-- --> Fix Broker enters an infinite loop in ManagedLedgerImpl.asyncReadEntries <a href="https://github.com/apache/pulsar/pull/8284" target="_blank" rel="noopener noreferrer">8284</a></li><li>[Broker]<!-- --> Fix message TTL on Key_Shared subscription and Fix ordering issue when replay messages <a href="https://github.com/apache/pulsar/pull/8292" target="_blank" rel="noopener noreferrer">8292</a></li><li>[Broker]<!-- --> Fix race condition in updating readPosition in ManagedCursorImpl <a href="https://github.com/apache/pulsar/pull/8299" target="_blank" rel="noopener noreferrer">8299</a></li><li>[Broker]<!-- --> Refresh ZooKeeper-data cache in background to avoid deadlock and blocking IO on ZK thread <a href="https://github.com/apache/pulsar/pull/8304" target="_blank" rel="noopener noreferrer">8304</a></li><li>[Broker]<!-- --> Upgrade hdfs2 version to 2.8.5 <a href="https://github.com/apache/pulsar/pull/8319" target="_blank" rel="noopener noreferrer">8319</a></li><li>[Broker]<!-- --> Upgrade solr version to 8.6.3 <a href="https://github.com/apache/pulsar/pull/8328" target="_blank" rel="noopener noreferrer">8328</a></li><li>[Broker]<!-- --> Fix deadlock that occurred during topic ownership check <a href="https://github.com/apache/pulsar/pull/8406" target="_blank" rel="noopener noreferrer">8406</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="proxy">Proxy<a href="#proxy" class="hash-link" aria-label="Direct link to Proxy" title="Direct link to Proxy"></a></h4><ul><li>[Proxy]<!-- --> Add advertisedAddress config field to ProxyConfiguration <a href="https://github.com/apache/pulsar/pull/7542" target="_blank" rel="noopener noreferrer">7542</a> </li><li>[Proxy]<!-- --> Fix deadlock in pulsar proxy <a href="https://github.com/apache/pulsar/pull/7690" target="_blank" rel="noopener noreferrer">7690</a></li><li>[Proxy]<!-- --> Handle NPE while updating proxy stats <a href="https://github.com/apache/pulsar/pull/7766" target="_blank" rel="noopener noreferrer">7766</a></li><li>[Proxy]<!-- --> Fix the null exception when starting the proxy service <a href="https://github.com/apache/pulsar/pull/8019" target="_blank" rel="noopener noreferrer">8019</a></li><li>[Proxy]<!-- --> Add proxy plugin interface to support user defined additional servlet <a href="https://github.com/apache/pulsar/pull/8067" target="_blank" rel="noopener noreferrer">8067</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsar-sql">Pulsar SQL<a href="#pulsar-sql" class="hash-link" aria-label="Direct link to Pulsar SQL" title="Direct link to Pulsar SQL"></a></h4><ul><li>[Pulsar SQL]<!-- --> Upgrade Presto version to 332 <a href="https://github.com/apache/pulsar/pull/7194" target="_blank" rel="noopener noreferrer">7194</a></li><li>[Pulsar SQL]<!-- --> Replace com.ning.asynchttpclient with org.asynchttpclient <a href="https://github.com/apache/pulsar/pull/8099" target="_blank" rel="noopener noreferrer">8099</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsar-functions">Pulsar Functions<a href="#pulsar-functions" class="hash-link" aria-label="Direct link to Pulsar Functions" title="Direct link to Pulsar Functions"></a></h4><ul><li>[Pulsar Functions]<!-- --> During Function update, cleanup should only happen for temp files that were generated <a href="https://github.com/apache/pulsar/pull/7201" target="_blank" rel="noopener noreferrer">7201</a></li><li>[Pulsar Functions]<!-- --> Have metadata tailer use its own thread for processing <a href="https://github.com/apache/pulsar/pull/7211" target="_blank" rel="noopener noreferrer">7211</a></li><li>[Pulsar Functions]<!-- --> Allow kubernetes runtime to customize function instance class path <a href="https://github.com/apache/pulsar/pull/7844" target="_blank" rel="noopener noreferrer">7844</a></li><li>[Pulsar Functions]<!-- --> SinkRecord adds an overridden method <a href="https://github.com/apache/pulsar/pull/8038" target="_blank" rel="noopener noreferrer">8038</a></li><li>[Pulsar Functions]<!-- --> Set dryrun of KubernetesRuntime is null <a href="https://github.com/apache/pulsar/pull/8064" target="_blank" rel="noopener noreferrer">8064</a></li><li>[Pulsar Functions]<!-- --> Allow disabling forwarding source message properties <a href="https://github.com/apache/pulsar/pull/8158" target="_blank" rel="noopener noreferrer">8158</a></li><li>[Pulsar Functions]<!-- --> Missed dryRun on maintenance of secrets <a href="https://github.com/apache/pulsar/pull/8286" target="_blank" rel="noopener noreferrer">8286</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsar-perf">Pulsar Perf<a href="#pulsar-perf" class="hash-link" aria-label="Direct link to Pulsar Perf" title="Direct link to Pulsar Perf"></a></h4><ul><li>[Pulsar Perf]<!-- --> Support setting message key <a href="https://github.com/apache/pulsar/pull/7989" target="_blank" rel="noopener noreferrer">7989</a></li><li>[Pulsar Perf]<!-- --> Make pulsar-perf ioThread number configurable <a href="https://github.com/apache/pulsar/pull/8090" target="_blank" rel="noopener noreferrer">8090</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsar-admin">Pulsar Admin<a href="#pulsar-admin" class="hash-link" aria-label="Direct link to Pulsar Admin" title="Direct link to Pulsar Admin"></a></h4><ul><li>[Pulsar Admin]<!-- --> Support initial namespace of the cluster without startup the broker <a href="https://github.com/apache/pulsar/pull/7434" target="_blank" rel="noopener noreferrer">7434</a></li><li>[Pulsar Admin]<!-- --> Fix some params on consumer broken by #4400 (regex, initialSouscriptionPosition) <a href="https://github.com/apache/pulsar/pull/7795" target="_blank" rel="noopener noreferrer">7795</a></li><li>[Pulsar Admin]<!-- --> Return more informative error message when trying to create subscription on non-persistent through Rest API or pulsar-admin CLI <a href="https://github.com/apache/pulsar/pull/7831" target="_blank" rel="noopener noreferrer">7831</a></li><li>[Pulsar Admin]<!-- --> Add cli command to get last message Id <a href="https://github.com/apache/pulsar/pull/8082" target="_blank" rel="noopener noreferrer">8082</a></li><li>[Pulsar Admin]<!-- --> Support delete all data associated with a cluster <a href="https://github.com/apache/pulsar/pull/8133" target="_blank" rel="noopener noreferrer">8133</a></li><li>[Pulsar Admin]<!-- --> Support delete schema ledgers when delete topics <a href="https://github.com/apache/pulsar/pull/8167" target="_blank" rel="noopener noreferrer">8167</a></li><li>[Pulsar Admin]<!-- --> Add command to delete a cluster's metadata from ZK <a href="https://github.com/apache/pulsar/pull/8169" target="_blank" rel="noopener noreferrer">8169</a></li><li>[Pulsar Admin]<!-- --> Support reset cursor to a batch index for Pulsar Admin <a href="https://github.com/apache/pulsar/pull/8329" target="_blank" rel="noopener noreferrer">8329</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="tiered-storage">Tiered Storage<a href="#tiered-storage" class="hash-link" aria-label="Direct link to Tiered Storage" title="Direct link to Tiered Storage"></a></h4><ul><li>[Tiered Storage]<!-- --> Refactored JCloud Tiered Storage <a href="https://github.com/apache/pulsar/pull/6335" target="_blank" rel="noopener noreferrer">6335</a></li><li>[Tiered Storage]<!-- --> Remove duplicate updates <a href="https://github.com/apache/pulsar/pull/8198" target="_blank" rel="noopener noreferrer">8198</a></li><li>[Tiered Storage]<!-- --> Make the field name in <code>OffloadPolicies</code> match with config file <a href="https://github.com/apache/pulsar/pull/8310" target="_blank" rel="noopener noreferrer">8310</a></li></ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/pulsar-site/edit/main/release-notes/versioned/pulsar-2.6.2.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"></nav></div></div><div class="col col--3"><div class="tableOfContents_jeP5 thin-scrollbar theme-doc-toc-desktop"><div class="border"><div 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