Release Notes for Couchbase Server 7.0

MB-54591

Summary: Lost wakeup in ActiveStream can result in DCP clients not receiving seqnos

MB-53922

Summary: Ephemeral purger can delete a StoredValue which is still referenced

MB-54415

Summary: AdvFilter upgrade happens pre-emptively leading to missed documents

MB-54366

Summary: XDCR Metakv callbacks racing when remote cluster ref is added/changed

MB-54317

Summary: Prevent unnecessary V8 GC runs

MB-54674

Summary: cbcollect_info pauses reading /proc/<PID>/smaps

MB-54327

Summary: Turn off impersonation if the KV node does not support it

MB-54236

Summary: Potential for request stall if stream operator fails to notify request that it has terminated

MB-53793

Summary: Wrong results when filter has conditional query parameters

MB-53628

Summary: Panic while calling math/rand’s Intn(..)

MB-54685

Summary: Rebalance hangs if indexes are being built when one database is deleted and new database is created

MB-54561

Summary: Optimise projector CPU during XATTR processing

MB-54336

Summary: Watcher fails to connect on clientAuth

MB-54025

Summary: cbindex fails to execute build index

MB-53842

Summary: Use streamId instead of index.Stream to determine stream catchup pending

MB-54542

Summary: Backup/Restore fails when bucket name contains "." character

MB-54263

Summary: Fix 7.0.4 issue where previously processed source bucket mutations were suppressed after undeploy-deploy cycle of an Eventing function

MB-51752

Summary: cbcollect fails to gather projector profiles when TLS is enforced

MB-51981

Summary: Prometheus continues to consume an ever increasing amount of disk space after 1GB

MB-51530

Summary: impersonated user with role data_writer[test:_default:default] is not able to create document in default collection

MB-51385

Summary: Compressed binary documents with xattrs are not replicated

MB-51407

Summary: XDCR cannot handle data larger than 20MB

MB-52281

Summary: Incorrect result when Element references an alias in the query

MB-51431

Summary: Avoid circular link in annotated value hierarchy

MB-51447

Summary: select executing a function executing a select returns the same results

MB-51453

Summary: IN/NOT IN filters not using Hash for evaluation

MB-51455

Summary: Aggregates wrongly pushed

MB-51578

Summary: Error 4321 generated when OR clause has a ($parameter is null) arm

MB-51581

Summary: JOIN query not covered

MB-51739

Summary: LEFT JOIN breaks with between operator on non-existing attribute

MB-52281

Summary: adhoc query index selection issue with LIKE as index condition and query parameters

MB-50861

Summary: Query log has flood with messages

MB-51023

Summary: ns_server stop responding after continuous CRUD on bucket and collections

MB-52000

Summary: Alter Index failure when nodes have un encrypted ports in encryption mode all

MB-50946

Summary: bleveMaxClauseCount reset to 1024 after restart

MB-51482

Summary: Node is not upgraded and stuck trying to register with CC

MB-51488

Summary: Ignore byte order marks when parsing external data

MB-51700

Summary: Analytics Service keeps crashing when one of the Analytics Service nodes is failed over

MB-51585

Summary: Limit ownership_history to last 'N' in metadata bucket

MB-51496

Summary: Eventing functions lose auth on save

MB-51497

Summary: Warning if variable name contains builtin api name

MB-51231

Summary: Memory leak when performing undeploy and pause operation

MB-51379

Summary: Rollback handling - Retry with previous uuid on rollback message

MB-51688

Summary: Refresh connectionpool on every encryption-level change

MB-51390

Summary: Handler stuck in pausing state after online upgrade and enforcing TLS

MB-51687

Summary: Some bucket operations are failing with LCB_ERR_SSL_CANTVERIFY after online upgrade to 7.0.x

MB-51386

Summary: Concurrent attempts to restart a crashed consumer process can cause rebalance & life cycle ops to fail or get stuck

MB-52313

Summary: Analytics Service crashes during upgrade on Windows

Issue

Description

MB-51629

Summary: Large negative integers with 19 significant digits but still below the limits of 64-bit int storage were treated as floating point and thus were subject to precision loss.

Workaround: Store large negative integers in strings, noting the limits on processing as strings.

MB-48438

Summary: Include bucketType in pools/default/b/<bucket-name> REST API

MB-38978

Summary: STAT "dcp" and "dcpagg" adversely affect front-end operation latency

MB-48179

Summary: SyncDeletes do not update maxDelRevSeqno, which can cause rev ids to go backwards

MB-48713

Summary: rev ids going backwards - non-sync-write delete

MB-46876

Summary: AT_PLUS queries with collections are not working

MB-46725

Summary: Rebalance button not enabled post Quorum Loss failover even when indexing has partitioned indexes

MB-46350

Summary: UI shows 104k mutations remaining when creating indexes on empty bucket

MB-47047

Summary: Internal Server error is raised while performing backup on a index node using cbbackupmgr

MB-47631

Summary: num_rollbacks_to_zero stats not changing for the rollback to zero

MB-47635

Summary: Optimise cluster info cache access in metadata_provider and request_handler

MB-47684

Summary: num_rollbacks_to_zero stats not changing for the rollback to zero

MB-47760

Summary: Panic caused by extraneous unlocking

MB-47878

Summary: Increase polling interval in pollForDeletedBuckets in projector

MB-48336

Summary: Rollback stats will now be persisted in case of indexer crash

MB-46260

Summary: Apply RBAC only for target collections in a multi-collection index

MB-46351

Summary: dcp_stream_boundary remains as "from_prior" after upgrade

MB-46647

Summary: default value for language_compatibility should be 6.6.2 instead 6.5.0

MB-47867

Summary: Always emit the first exception to the application log then summarize

MB-48103

Summary: handler stuck in deploying state

MB-48104

Summary: Connection::isPacketAvailable(): Invalid packet header detected. Cookies: []

MB-48118

Summary: Performance: crash dump generated

MB-48195

Summary: REST calls fail after changing encryption level to "all"

MB-48337

Summary: Mix Mode: No error when we add new function

MB-48487

Summary: panic observed in debugger tests

MB-48488

Summary: Resume time increased by 34%

MB-48572

Summary: Service 'eventing' exited with status 2.

MB-47157

Summary: XDCR - make health_check_interval configurable

MB-47246

Summary: Switch to new javascript evaluator

MB-47521

Summary: XDCR - collect remote clusters and replication info as part of cbcollect

MB-47777

Summary: XDCR - backfill_request_handler could hang forever

MB-47778

Summary: XDCR - backfill replication spec reloading could misload spec from wrong data

MB-47779

Summary: XDCR - backfill req handler may not get correct throughSeqnos if pipeline is paused

MB-47900

Summary: XDCR - throughSeqnoTracker bg scanner may run for a long time

MB-48105

Summary: unknown remote cluster

MB-48016

Summary: XDCR with full encryption may fail, with the message certificate relies on legacy Common Name field, use SANs or temporarily enable Common Name matching with GODEBUG=x509ignoreCN=0, statusCode=0.

MB-48211

Summary: XDCR - File descriptor leak in XDCR

MB-47001

Summary: Add Charts to Query Workbench

MB-48081

Summary: cbbackupmgr start and end validations is a bit too aggressive

MB-47806

Summary: 7.0 Windows installer always rollbacks during install

MB-48783

Summary: Offline upgrade from 7.0.0 or 7.0.1 on Debian and Ubuntu package install corrupts config files

MB-46490

Summary: More memory overhead for non-collection index

MB-47205

Summary: closeForRecovery does not release gCtx

MB-47355

Summary: Compact parent page after page-split

MB-47354

Summary: compact when marshalling full page over purge ratio

MB-47429

Summary: Detect missing log file segment during initialization

MB-47503

Summary: Recovered instances do not compact

MB-47986

Summary: Log specific index stats at regular interval

MB-47990

Summary: lss_rea_bytes and bytes_written do not always match perf html report

MB-47992

Summary: Plasma Stats Compact Counter not updated on CompactFullMarshal

MB-48356

Summary: MVCCPurger may stop running if doProceed check fails

MB-47987

Summary: instMap in StatsLogger.run() should not be indexed by PlasmaId

MB-47094

Summary: Slow processing of audit messages might lead to increase in RSS memory

MB-47678

Summary: Fixed an error encountered when running Flex index queries on a setup that used alternate addresses.

MB-47502

Summary: Fixed a memory leak in Prometheus.

MB-47457

Summary: Fixed the Search Service’s incorrect use of the node’s alternate address.

MB-47087

Summary: Fixed the failure of rebalance out following multi-node graceful failover.

MB-46646

MB-45996

Summary: The Analytics service may run out of heap space when ingesting maximum size documents (20MB) with minimally-sized Analytics memory quota as some memory that is consumed during ingestion is not released until the link is disconnected.

Workaround: Use smaller documents, increase the Analytics service memory quota, or disconnect the link before running queries to avoid this issue.

MB-44849

Summary: A Remote Collection that gets disconnected due to the loss of permissions is not reconnected if the permissions are re-established.

Workaround: Re-establish the connection by running CONNECT LINK manually.

MB-47267

Summary: Clusters with a large number of high capacity persistent buckets, delta node recovery may timeout, due to large persistent bucket’s warmup tasks being scheduled before the initial tasks of warmup for other buckets.

Workaround: Increase the number of reader threads to reduce the likelihood of smaller bucket’s warmup tasks being delayed from running.

MB-38978

Summary: Under certain circumstances, such as running a cbcollect_info, requests may take longer than normal. Depending on the system workload and size, this may be even a few seconds, which can trigger the default timeout value from SDKs.

Workaround: We recommend that you avoid gathering these stats or cbcollect_info during higher workload.

MB-45973

Summary: After upgrading a cluster with a single Data node from version 6.6 to 7.0, Eventing timers are not triggered as expected after a swap rebalance to version 7.0. Note that this does not impact clusters with 2 or more data nodes, or when there are no deployed or paused Eventing Functions with timers.

Workaround: Undeploy all Eventing Functions that use timers, or add a second Data node before upgrading to version 7.0 (which can be subsequently be removed after the upgrade is complete).

MB-45785

Summary: A race condition exists where an Eventing Function with a Feed Boundary set to "From now" sometimes ignores it’s checkpoint and resumes processing form Everything. This issue only impacts the UI and can occur when a user rapidly invokes pause, edit, or resume in succession.

Workaround: The issue can be avoided by using the REST APIs to pause and resume Eventing Functions in production.

MB-46725

Summary: In the case of an unsafe failover that removes one or more index nodes from the cluster, the Rebalance button on the UI may not be enabled even though some indexes or index partitions are not available because the remaining index node(s) did not have any of their replicas.

Workaround: Issue a rebalance command via CLI couchbase-cli rebalance -c 127.0.0.1:8091 -u Administrator -p xxxxxx

MB-47806

MB-46876

Summary: AT_PLUS queries do not work with collections when using scan_vectors.

MB-47094

Summary: When request auditing is enabled in a Couchbase cluster, under very high Views query workload, the view-engine audit message queue may grow unbounded causing the view-engine to crash.

Workaround: Disable auditing when Views are present in the cluster.

MB-47613

Summary: Add bucket names and UUIDs to pools/default

MB-49271

Summary: ns_server should generate DCP connection names that are no longer than allowed by memcached

MB-49323

Summary: Reconfigure of interfaces does not work for multiple entries sharing hostname and port and using an optional flag

MB-34280

Summary: Memcached should disallow DCP connections with names greater than 200 characters

MB-48713

Summary: [Ephemeral] Rev id going backwards for SyncWrite add

MB-49321

Summary: Reconfigure of interface does not work going from * to specific IP and vice versa

MB-49323

Summary: Reconfigure of interfaces does not work for multiple entries sharing hostname and port and using optional flag

MB-50078

Summary: Enforce TLS: Established plaintext connections are not closed when plaintext listening socket is closed

MB-47672

Summary: XDCR hitting pools/nodes endpoint should be coordinated

MB-48134

Summary: Remove staged transaction xattr and replicate data

MB-48212

Summary: File descriptor leak in XDCR

MB-48801

Summary: Compressed binary documents with xattrs are not replicated

MB-48289

Summary: Fix eventing-producer RSS bloat when eventing-consumers are re-spawned continuously

MB-49600

Summary: Concurrent attempts to restart a crashed consumer process can cause rebalance & life cycle ops to fail or get stuck

MB-47674

Summary: Provide configurable option to disable logging numDocsPending stat for projector