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href="#2019-12-06" class="hash-link" aria-label="Direct link to 2019-12-06" title="Direct link to 2019-12-06"></a></h4><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pips">PIPs<a href="#pips" class="hash-link" aria-label="Direct link to PIPs" title="Direct link to PIPs"></a></h4><ul><li>[PIP-41]<!-- --> Introduce Protocol Handler API <a href="https://github.com/apache/pulsar/pull/5130" target="_blank" rel="noopener noreferrer">#5130</a> <a href="https://github.com/apache/pulsar/pull/5473" target="_blank" rel="noopener noreferrer">#5743</a> </li><li>[PIP-45]<!-- --> Pluggable metadata interface <a href="https://github.com/apache/pulsar/pull/5330" target="_blank" rel="noopener noreferrer">#5330</a> </li><li>[PIP-44]<!-- --> Separate schema compatibility checker for producer and consumer <a href="https://github.com/apache/pulsar/pull/5227" target="_blank" rel="noopener noreferrer">#5227</a></li><li>[PIP-43]<!-- --> Producer send messages with different schema <a href="https://github.com/apache/pulsar/issues/5141" target="_blank" rel="noopener noreferrer">#5141</a> <a href="https://github.com/apache/pulsar/pull/5517" target="_blank" rel="noopener noreferrer">#5517</a> </li><li>[PIP-51]<!-- --> Introduce sticky consumer <a href="https://github.com/apache/pulsar/pull/5388" target="_blank" rel="noopener noreferrer">#5388</a></li><li>[PIP-38]<!-- --> Support batch receive in java client. <a href="https://github.com/apache/pulsar/pull/4621" target="_blank" rel="noopener noreferrer">#4621</a></li><li>[PIP-52]<!-- --> PIP-52: <!-- -->[pulsar-sever]<!-- --> Add support of dispatch throttling relative to publish-rate <a href="https://github.com/apache/pulsar/pull/5797" target="_blank" rel="noopener noreferrer">#5797</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="fixes">Fixes<a href="#fixes" class="hash-link" aria-label="Direct link to Fixes" title="Direct link to Fixes"></a></h4><ul><li>[Broker]<!-- --> Avoid retrying deleting namespace when topic is already deleted/fenced <a href="https://github.com/apache/pulsar/pull/4665" target="_blank" rel="noopener noreferrer">#4665</a></li><li>[Broker]<!-- --> Fix expiry monitor to continue on non-recoverable error <a href="https://github.com/apache/pulsar/pull/4818" target="_blank" rel="noopener noreferrer">#4818</a> </li><li>[Broker]<!-- --> fix ns-isolation api to fetch policy for specific broker <a href="https://github.com/apache/pulsar/pull/5314" target="_blank" rel="noopener noreferrer">#5314</a></li><li>[Broker]<!-- --> external protocols not set to local broker data <a href="https://github.com/apache/pulsar/pull/5479" target="_blank" rel="noopener noreferrer">#5749</a></li><li>[Broker]<!-- --> Add handle exception KeeperException.BadVersionException <a href="https://github.com/apache/pulsar/pull/5563" target="_blank" rel="noopener noreferrer">#5563</a></li><li>[Broker]<!-- --> Fix message deduplicate issue while using external sequence id with batch produce <a href="https://github.com/apache/pulsar/pull/5491" target="_blank" rel="noopener noreferrer">#5491</a></li><li>[Broker]<!-- --> Remove cursor while remove non-durable subscription <a href="https://github.com/apache/pulsar/pull/5719" target="_blank" rel="noopener noreferrer">#5719</a> </li><li>[Broker]<!-- --> Fix potential read 0 entries cause dispatcher stop dispatch <a href="https://github.com/apache/pulsar/pull/5894" target="_blank" rel="noopener noreferrer">#5894</a></li><li>[Proxy]<!-- --> Proxy doesn't use the right ca certicate to connect to brokers <a href="https://github.com/apache/pulsar/pull/5971" target="_blank" rel="noopener noreferrer">#5971</a></li><li>[Client]<!-- --> Add SentConnectFrame state check when running <code>handleError</code> <a href="https://github.com/apache/pulsar/pull/5913" target="_blank" rel="noopener noreferrer">#5913</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="enhancements">Enhancements<a href="#enhancements" class="hash-link" aria-label="Direct link to Enhancements" title="Direct link to Enhancements"></a></h4><ul><li>[Zookeeper]<!-- --> Bump zookeeper to version 3.5.6 <a href="https://github.com/apache/pulsar/pull/5043" target="_blank" rel="noopener noreferrer">#5043</a></li><li>[BookKeeper]<!-- --> Upgrade bk version to 4.10.0 <a href="https://github.com/apache/pulsar/pull/5607" target="_blank" rel="noopener noreferrer">#5607</a></li><li>[Broker]<!-- --> Process requests asynchronously on some REST APIs <a href="https://github.com/apache/pulsar/pull/4765" target="_blank" rel="noopener noreferrer">4765</a> <a href="https://github.com/apache/pulsar/pull/4778" target="_blank" rel="noopener noreferrer">4778</a> <a href="https://github.com/apache/pulsar/pull/4795" target="_blank" rel="noopener noreferrer">4795</a> </li><li>[Broker]<!-- --> Fixes not owned bundles got selected when broker overloading <a href="https://github.com/apache/pulsar/pull/5002" target="_blank" rel="noopener noreferrer">#5002</a></li><li>[Broker]<!-- --> Support update partition for global topic <a href="https://github.com/apache/pulsar/pull/5306" target="_blank" rel="noopener noreferrer">#5306</a></li><li>[Broker]<!-- --> Ensure the handling of PartitionMetadataRequest is async end-to-end <a href="https://github.com/apache/pulsar/pull/5307" target="_blank" rel="noopener noreferrer">#5307</a></li><li>[Broker]<!-- --> Allow to automatically assign TCP ports when starting a broker <a href="https://github.com/apache/pulsar/pull/3555" target="_blank" rel="noopener noreferrer">#3555</a> </li><li>[Broker]<!-- --> Introduce publish rate-limiting on topic <a href="https://github.com/apache/pulsar/pull/3986" target="_blank" rel="noopener noreferrer">#3986</a></li><li>[Broker]<!-- --> Add publish rate limit for each broker to avoid OOM <a href="https://github.com/apache/pulsar/pull/5710" target="_blank" rel="noopener noreferrer">#5710</a></li><li>[Broker]<!-- --> Allow for namespace default of offload threshold <a href="https://github.com/apache/pulsar/pull/5872" target="_blank" rel="noopener noreferrer">#5872</a></li><li>[Broker]<!-- --> Avoid unsafe split when validate hostname which might be ipv6 address <a href="https://github.com/apache/pulsar/pull/5713" target="_blank" rel="noopener noreferrer">#5713</a></li><li>[Broker]<!-- --> Support batch authorization of partitioned topic <a href="https://github.com/apache/pulsar/pull/5767" target="_blank" rel="noopener noreferrer">#5767</a></li><li>[Client][Java]<!-- --> Introduce <code>batchingMaxBytes</code> setting in pulsar producer <a href="https://github.com/apache/pulsar/pull/5045" target="_blank" rel="noopener noreferrer">#5045</a></li><li>[Client][Java]<!-- --> Add epoch for connection handler to handle create producer timeout <a href="https://github.com/apache/pulsar/pull/5571" target="_blank" rel="noopener noreferrer">#5571</a></li><li>[Performance]<!-- --> Reduce char[] creation on jvm heap <a href="https://github.com/apache/pulsar/pull/5055" target="_blank" rel="noopener noreferrer">#5055</a></li><li>[CLI]<!-- --> Add a broker tool for operations of a specific broker <a href="https://github.com/apache/pulsar/pull/5768" target="_blank" rel="noopener noreferrer">#5768</a></li><li>[CLI]<!-- --> Validate topic name before creating partition/non partition topic via admin cli <a href="https://github.com/apache/pulsar/pull/5148" target="_blank" rel="noopener noreferrer">#5148</a></li><li>[CLI]<!-- --> Make PulsarClusterMetadataSetup idempotent <a href="https://github.com/apache/pulsar/pull/5879" target="_blank" rel="noopener noreferrer">#5879</a></li><li>[CLI]<!-- --> Allow for topic deletions with regex consumers <a href="https://github.com/apache/pulsar/pull/5230" target="_blank" rel="noopener noreferrer">#5230</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="stats--monitoring">Stats & Monitoring<a href="#stats--monitoring" class="hash-link" aria-label="Direct link to Stats & Monitoring" title="Direct link to Stats & Monitoring"></a></h4><ul><li>[Broker]<!-- --> Added delayed messages in Prometheus when using namespace-level metrics aggregation <a href="https://github.com/apache/pulsar/pull/4691" target="_blank" rel="noopener noreferrer">#4691</a></li><li>[Dashboard]<!-- --> Increasing Dashboard consumerName field to 256 varchar <a href="https://github.com/apache/pulsar/pull/4716" target="_blank" rel="noopener noreferrer">4716</a></li><li>[Dashboard]<!-- --> integrate peek into messages page <a href="https://github.com/apache/pulsar/pull/4966" target="_blank" rel="noopener noreferrer">#4966</a></li><li>[Dashboard]<!-- --> Support parse batch entry <a href="https://github.com/apache/pulsar/pull/4992" target="_blank" rel="noopener noreferrer">#4992</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="security">Security<a href="#security" class="hash-link" aria-label="Direct link to Security" title="Direct link to Security"></a></h4><ul><li>[Broker]<!-- --> Add broker-bookie mTLS support <a href="https://github.com/apache/pulsar/pull/5042" target="_blank" rel="noopener noreferrer">#5042</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>HDFS Offloader <a href="https://github.com/apache/pulsar/pull/4403" target="_blank" rel="noopener noreferrer">#4403</a></li><li>Fix the problem of repeated storage of offload driver metadata <a href="https://github.com/apache/pulsar/pull/5834" target="_blank" rel="noopener noreferrer">#5834</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsar-schema">Pulsar Schema<a href="#pulsar-schema" class="hash-link" aria-label="Direct link to Pulsar Schema" title="Direct link to Pulsar Schema"></a></h4><ul><li>[Broker]<!-- --> Pulsar schema api should respect to namespace level compatibility <a href="https://github.com/apache/pulsar/issues/4821" target="_blank" rel="noopener noreferrer">#4821</a></li><li>[Client][Java]<!-- --> NPE is thrown when a consumer consumes a partitioned topic with struct schema |
| <a href="https://github.com/apache/pulsar/pull/4960" target="_blank" rel="noopener noreferrer">#4960</a></li><li>[Broker]<!-- --> Add compatibility check for primitive schema types <a href="https://github.com/apache/pulsar/pull/5051" target="_blank" rel="noopener noreferrer">#5051</a></li><li>[Broker]<!-- --> Support uploading key/value schema using Pulsar admin <a href="https://github.com/apache/pulsar/pull/5000" target="_blank" rel="noopener noreferrer">#5000</a></li><li>[Client][Java]<!-- --> Schema support encoding & encoding ByteBuf <a href="https://github.com/apache/pulsar/pull/5123" target="_blank" rel="noopener noreferrer">#5123</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsar-io">Pulsar IO<a href="#pulsar-io" class="hash-link" aria-label="Direct link to Pulsar IO" title="Direct link to Pulsar IO"></a></h4><ul><li>[Broker]<!-- --> Support reload Source and Sink for Pulsar IO <a href="https://github.com/apache/pulsar/pull/5008" target="_blank" rel="noopener noreferrer">5008</a></li><li>[Connector]<!-- --> Added Kinesis Source Connector <a href="https://github.com/apache/pulsar/pull/3784" target="_blank" rel="noopener noreferrer">#3784</a></li><li>[Connector]<!-- --> Add a source connector for MongoDB <a href="https://github.com/apache/pulsar/pull/5316" target="_blank" rel="noopener noreferrer">#5316</a></li><li>[Connector]<!-- --> Support CDC Connector for MongoDB <a href="https://github.com/apache/pulsar/pull/5590" target="_blank" rel="noopener noreferrer">#5590</a></li><li>[Connector]<!-- --> Improve hbase sink performance <a href="https://github.com/apache/pulsar/pull/5705" target="_blank" rel="noopener noreferrer">#5705</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>[Function Worker]<!-- --> Allow resource overcommitting when running functions in Kubernetes <a href="https://github.com/apache/pulsar/pull/4829" target="_blank" rel="noopener noreferrer">4829</a></li><li>[Function Worker]<!-- --> Make Function Authentication Provider pluggable <a href="https://github.com/apache/pulsar/pull/5404" target="_blank" rel="noopener noreferrer">#5404</a></li><li>[Function Worker]<!-- --> Added deletion of state for Functions <a href="https://github.com/apache/pulsar/pull/5469" target="_blank" rel="noopener noreferrer">#5469</a> </li><li>[Function Worker]<!-- --> Distribute the CA for KubernetesSecretsTokenAuthProvider <a href="https://github.com/apache/pulsar/pull/5398" target="_blank" rel="noopener noreferrer">#5398</a></li><li>[Function Runtime]<!-- --> Function runtime pluggable <a href="https://github.com/apache/pulsar/pull/5463" target="_blank" rel="noopener noreferrer">#5463</a></li><li>[Function Runtime]<!-- --> Allow functions to pass runtime specific options <a href="https://github.com/apache/pulsar/pull/5400" target="_blank" rel="noopener noreferrer">#5400</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>Support for other schema name separators in pulsar SQL <a href="https://github.com/apache/pulsar/issues/4732" target="_blank" rel="noopener noreferrer">4732</a></li><li>Reuse ManagedLedgerFactory instances across SQL queries <a href="https://github.com/apache/pulsar/pull/4813" target="_blank" rel="noopener noreferrer">4813</a> </li><li>Using pulsar SQL query messages will appear <code>NoSuchLedger</code> when zk root directory changed <a href="https://github.com/apache/pulsar/pull/5001" target="_blank" rel="noopener noreferrer">#5001</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="adaptors">Adaptors<a href="#adaptors" class="hash-link" aria-label="Direct link to Adaptors" title="Direct link to Adaptors"></a></h4><ul><li>Add support of pulsar-kafka-adapter for kafka-0.9 API <a href="https://github.com/apache/pulsar/pull/4886" target="_blank" rel="noopener noreferrer">#4886</a></li><li>Add support of pulsar-kafka-adapter for kafka-0.8 API <a href="https://github.com/apache/pulsar/pull/4797" target="_blank" rel="noopener noreferrer">#4797</a> </li><li>Make client keepalive interval configurable on pulsar-client-kafka <a href="https://github.com/apache/pulsar/pull/5131" target="_blank" rel="noopener noreferrer">#5131</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="transaction">Transaction<a href="#transaction" class="hash-link" aria-label="Direct link to Transaction" title="Direct link to Transaction"></a></h4><blockquote><p>The development of Pulsar Transaction is still ongoing</p></blockquote><ul><li>[Buffer]<!-- --> Add new marker to show which message belongs to transaction <a href="https://github.com/apache/pulsar/pull/4776" target="_blank" rel="noopener noreferrer">#4776</a></li><li>[Buffer]<!-- --> Add data ledger position in txn commit marker <a href="https://github.com/apache/pulsar/pull/4826" target="_blank" rel="noopener noreferrer">#4826</a></li><li>[Buffer]<!-- --> Add basic operation of transaction <a href="https://github.com/apache/pulsar/pull/4738" target="_blank" rel="noopener noreferrer">#4738</a></li><li>[Buffer]<!-- --> Add new commands for the transaction <a href="https://github.com/apache/pulsar/pull/4866" target="_blank" rel="noopener noreferrer">#4866</a></li><li>[Protocol]<!-- --> Add default handler to handle transaction related commands <a href="https://github.com/apache/pulsar/pull/4891" target="_blank" rel="noopener noreferrer">#4891</a></li><li>[Client]<!-- --> Introduce Transaction Client API <a href="https://github.com/apache/pulsar/pull/4952" target="_blank" rel="noopener noreferrer">#4952</a></li><li>[Client]<!-- --> Add transaction coordinator client <a href="https://github.com/apache/pulsar/pull/4953" target="_blank" rel="noopener noreferrer">#4953</a></li><li>[Broker]<!-- --> Ownership change listeners <a href="https://github.com/apache/pulsar/pull/5457" target="_blank" rel="noopener noreferrer">#5457</a></li><li>[Coordinator]<!-- --> Bootstrap pulsar system namespace and create TC assign topic <a href="https://github.com/apache/pulsar/pull/5515" target="_blank" rel="noopener noreferrer">#5515</a></li><li>[Coordinator]<!-- --> Add transaction metadata store service <a href="https://github.com/apache/pulsar/pull/5504" target="_blank" rel="noopener noreferrer">#5504</a> </li></ul><p>For a complete list of issues fixed, see</p><p><a href="https://github.com/apache/pulsar/milestone/22?closed=1" target="_blank" rel="noopener noreferrer">https://github.com/apache/pulsar/milestone/22?closed=1</a></p><p><a href="https://github.com/apache/pulsar/releases/tag/v2.5.0" target="_blank" rel="noopener noreferrer">https://github.com/apache/pulsar/releases/tag/v2.5.0</a></p></div><footer 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