Bump pulsar-client from 2.5.2 to 2.6.0 in /modules/pulsar

[dependabot-preview]

Bumps pulsar-client from 2.5.2 to 2.6.0.

Release notes

Sourced from pulsar-client's releases.

v2.6.0

2.6.0 — 2020-06-17

Features

PIPs

• [PIP-37] Large message size support #4400
• [PIP-39] Namespace change events (System Topic) #4955
• [PIP-45] Switch ManagedLedger to use MetadataStore interface #5358
• [PIP 53] Contribute DotPulsar to Apache Pulsar
• [PIP-54] Support acknowledgment at batch index level #6052
• [PIP-58] Support consumers set custom message retry delay #6449
• [PIP-60] Support SNI routing to support various proxy-server #6566
• [PIP-61] Advertise multiple addresses #6903
• [PIP-65] Adapting Pulsar IO Sources to support Batch Sources #7090

Broker

• [Broker] Add threshold shedder strategy and metrics exporter for loadbalancer #6772
• [Broker] Add consistent hashing in the Key_Shared distribution #6791
• [Broker] Fixed ordering issue in KeyShared subscription dispatcher when adding consumer #7106 #7108 #7188
• [Broker] Add support for key hash range reading in Key_Shared subscription #5928
• [Broker] Allow for schema reader and writer registration on SchemaDefinition #6905
• [Broker] Support use null key and null value in KeyValue Schema #7139
• [Broker] Support multiple pulsar clusters to use the same bk cluster #5985
• [Broker] Add a flag to skip broker shutdown on transient OOM #6634
• [Broker] Make zookeeper cache expiry time configurable #6668
• [Broker] Check replicator periodically to avoid issue due to zookeeper missing watch #6674
• [Broker] Expose managedLedgerCache, managedLedger, loadBalance metrics to Prometheus #6705
• [Broker] Optimize consumer fetch messages in case of batch message #6719
• [Broker] Add configuration to limit max partitions for a partitioned topic #6794
• [Broker] Change default FlushEntryLogBytes to 256MB to improve bookie io throughput #6915
• [Broker] Introduce precise topic publish rate limiting #7078
• [Broker] Expose new entries check delay in the broker.conf 7154
• [Broker] Add broker interceptor for intercepting all Pulsar command and REST API requests #7143
• [Broker] Only close active consumer for Failover subscription when seek() #7141
• [Broker] Allow to delete topics that are failing to recover #7131
• [Broker] Support set netty max frame size in bookkeeper.conf #7116
• [Broker] Trigger rollover when meeting maxLedgerRolloverTimeMinutes #7111
• [Broker] Cap the dispatcher batch size in bytes to fixed max #7097
• [Broker] Support specify managedLedgerMaxSizePerLedgerMbytes in broker.conf #7085
• [Broker] Allow to grant permissions when the authorization is disabled #7074
• [Broker] Add messages and bytes counter stats to broker-stats/topics #7045
• [Broker] Expose new entries check delay in the broker.conf #7154

Function

• [Function] Built-in functions support #6895
• [Function] Add Go Function heartbeat (and gRPC service) for production usage #6031

... (truncated)

Commits

• 653ef40 Release 2.6.0
• 5d78a2d Fix apache rat check (#7225)
• e6e63fb [Doc]--Update geo-replication doc. (#7218)
• c2759be Fix bug: pattern consumer's receive() will cause deadlock for topics auto dis...
• f26bab3 Support multi versions of Go for testing go functions (#7220)
• 2102c33 Add Kingsoft Cloud to Powered By page (#7219)
• 626f2c8 change topic lookup redirect log level (#7215)
• 2aff473 [issue #6765] Expose definition flags to function (#6868)
• dbc0649 Add broker interceptor for Intercepting all Pulsar command and REST API reque...
• f8a697d Prevent redirection of lookup requests from looping (#7200)
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