From 538fc1b19674d16bc03af1e5ce2ceed43bdfbea5 Mon Sep 17 00:00:00 2001
From: Rinku Kothiya <rkothiya@redhat.com>
Date: Wed, 7 Aug 2019 15:26:20 +0000
Subject: doc: Added initial release notes for release-7

updates: bz#1732875

Change-Id: I12f4c1e74e238c9906f5068ccbde38343ca14ff5
Signed-off-by: Rinku Kothiya <rkothiya@redhat.com>
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+# Release notes for Gluster 7.0
+
+This is a major release that includes a range of code improvements and stability
+fixes along with a few features as noted below.
+
+A selection of the key features and changes are documented in this page.
+A full list of bugs that have been addressed is included further below.
+
+- [Announcements](#announcements)
+- [Major changes and features](#major-changes-and-features)
+- [Major issues](#major-issues)
+- [Bugs addressed in the release](#bugs-addressed)
+
+## Announcements
+
+1. Releases that receive maintenance updates post release 7 are, 6 and 7
+([reference](https://www.gluster.org/release-schedule/))
+
+2. Release 7 will receive maintenance updates around the 10th of every month
+for the first 3 months post release (i.e Sep'19, Oct'19, Nov'19). Post the
+initial 3 months, it will receive maintenance updates every 2 months till EOL.
+
+
+
+## Major changes and features
+
+### Highlights
+
+- Several stability fixes addressing,
+  - coverity, clang-scan, address sanitizer and valgrind reported issues
+  - removal of unused and hence, deprecated code and features
+- Performance Improvements
+
+
+Features 
+
+#### 1. Rpcbind not required in glusterd.service when gnfs isn't built.
+
+#### 2. Latency based read child to improve read workload latency in a cluster, especially in a cloud setup. Also provides a load balancing with the outstanding pending request.
+
+#### 3. Glusterfind: integrate with gfid2path, to improve performance. 
+
+#### 4. Issue #532: Work towards implementing global thread pooling has started
+
+#### 5. This release includes extra coverage for glfs public APIs in our regression tests, so we don't break anything.
+
+
+
+## Major issues
+
+**None**
+
+## Bugs addressed
+
+Bugs addressed since release-6 are listed below.
+
+- [#789278](https://bugzilla.redhat.com/789278): Issues reported by Coverity static analysis tool
+- [#1098991](https://bugzilla.redhat.com/1098991): Dist-geo-rep: Invalid slave url (::: three or more colons)  error out with unclear error message.
+- [#1193929](https://bugzilla.redhat.com/1193929): GlusterFS can be improved
+- [#1241494](https://bugzilla.redhat.com/1241494): [Backup]: Glusterfind CLI commands need to verify the accepted names for session/volume, before failing with error(s)
+- [#1512093](https://bugzilla.redhat.com/1512093): Value of pending entry operations in detail status output is going up after each synchronization.
+- [#1535511](https://bugzilla.redhat.com/1535511): Gluster CLI shouldn't stop if log file couldn't be opened
+- [#1542072](https://bugzilla.redhat.com/1542072): Syntactical errors in hook scripts for managing SELinux context on bricks #2 (S10selinux-label-brick.sh + S10selinux-del-fcontext.sh)
+- [#1573226](https://bugzilla.redhat.com/1573226): eventsapi: ABRT report for package glusterfs has reached 10 occurrences
+- [#1580315](https://bugzilla.redhat.com/1580315): gluster volume status inode getting timed out after 30 minutes with no output/error
+- [#1590385](https://bugzilla.redhat.com/1590385): Refactor dht lookup code
+- [#1593224](https://bugzilla.redhat.com/1593224): [Disperse] : Client side heal is not removing dirty flag for some of the files.
+- [#1596787](https://bugzilla.redhat.com/1596787): glusterfs rpc-clnt.c: error returned while attempting to connect to host: (null), port 0
+- [#1622665](https://bugzilla.redhat.com/1622665): clang-scan report: glusterfs issues
+- [#1624701](https://bugzilla.redhat.com/1624701): error-out {inode,entry}lk fops with all-zero lk-owner
+- [#1628194](https://bugzilla.redhat.com/1628194): tests/dht: Additional tests for dht operations
+- [#1633930](https://bugzilla.redhat.com/1633930): ASan (address sanitizer) fixes - Blanket bug
+- [#1634664](https://bugzilla.redhat.com/1634664): Inconsistent quorum checks during open and fd based operations
+- [#1635688](https://bugzilla.redhat.com/1635688): Keep only the valid (maintained/supported) components in the build
+- [#1642168](https://bugzilla.redhat.com/1642168): changes to cloudsync xlator
+- [#1642810](https://bugzilla.redhat.com/1642810): remove glupy from code and build
+- [#1648169](https://bugzilla.redhat.com/1648169): Fuse mount would crash if features.encryption is on in the version from 3.13.0 to 4.1.5
+- [#1648768](https://bugzilla.redhat.com/1648768): Tracker bug for all leases related issues
+- [#1650095](https://bugzilla.redhat.com/1650095): Regression tests for geo-replication on EC volume is not available. It should be added.
+- [#1651246](https://bugzilla.redhat.com/1651246): Failed to dispatch handler
+- [#1651439](https://bugzilla.redhat.com/1651439): gluster-NFS crash while expanding volume
+- [#1651445](https://bugzilla.redhat.com/1651445): [RFE] storage.reserve option should take size of disk as input instead of percentage
+- [#1652887](https://bugzilla.redhat.com/1652887): Geo-rep help looks to have a typo.
+- [#1654021](https://bugzilla.redhat.com/1654021): Gluster volume heal causes continuous info logging of "invalid argument"
+- [#1654270](https://bugzilla.redhat.com/1654270): glusterd crashed with seg fault possibly during node reboot while volume creates and deletes were happening
+- [#1659334](https://bugzilla.redhat.com/1659334): FUSE mount seems to be hung and not accessible
+- [#1659708](https://bugzilla.redhat.com/1659708): Optimize by not stopping (restart) selfheal deamon (shd)  when a volume is stopped unless it is the last volume
+- [#1664934](https://bugzilla.redhat.com/1664934): glusterfs-fuse client not benefiting from page cache on read after write
+- [#1670031](https://bugzilla.redhat.com/1670031): performance regression seen with smallfile workload tests
+- [#1672480](https://bugzilla.redhat.com/1672480): Bugs Test Module tests failing on s390x
+- [#1672711](https://bugzilla.redhat.com/1672711): Upgrade from glusterfs 3.12 to gluster 4/5 broken
+- [#1672727](https://bugzilla.redhat.com/1672727): Fix timeouts so the tests pass on AWS
+- [#1672851](https://bugzilla.redhat.com/1672851): With parallel-readdir enabled, deleting a directory containing stale linkto files fails with "Directory not empty"
+- [#1674389](https://bugzilla.redhat.com/1674389): [thin arbiter] : rpm - add thin-arbiter package
+- [#1674406](https://bugzilla.redhat.com/1674406): glusterfs FUSE client crashing every few days with 'Failed to dispatch handler'
+- [#1674412](https://bugzilla.redhat.com/1674412): listing a file while writing to it causes deadlock
+- [#1675076](https://bugzilla.redhat.com/1675076): [posix]: log the actual path wherever possible
+- [#1676400](https://bugzilla.redhat.com/1676400): rm -rf fails with  "Directory not empty"
+- [#1676430](https://bugzilla.redhat.com/1676430): distribute: Perf regression in mkdir path
+- [#1676736](https://bugzilla.redhat.com/1676736): tests: ./tests/bugs/distribute/bug-1161311.t times out
+- [#1676797](https://bugzilla.redhat.com/1676797): server xlator doesn't handle dict unserialization failures correctly
+- [#1677559](https://bugzilla.redhat.com/1677559): gNFS crashed when processing "gluster v profile [vol] info nfs"
+- [#1678726](https://bugzilla.redhat.com/1678726): Integer Overflow possible in md-cache.c due to data type inconsistency
+- [#1679401](https://bugzilla.redhat.com/1679401): Geo-rep setup creates an incorrectly formatted authorized_keys file
+- [#1679406](https://bugzilla.redhat.com/1679406): glustereventsd does not start on Ubuntu 16.04 LTS
+- [#1680587](https://bugzilla.redhat.com/1680587): Building RPM packages with _for_fedora_koji_builds enabled fails on el6
+- [#1683352](https://bugzilla.redhat.com/1683352): remove experimental xlators informations from glusterd-volume-set.c
+- [#1683594](https://bugzilla.redhat.com/1683594): nfs ltp ftest* fstat gets mismatch size as except after turn on md-cache
+- [#1683816](https://bugzilla.redhat.com/1683816): Memory leak when peer detach fails
+- [#1684385](https://bugzilla.redhat.com/1684385): [ovirt-gluster] Rolling gluster upgrade from 3.12.5 to 5.3 led to shard on-disk xattrs disappearing
+- [#1684404](https://bugzilla.redhat.com/1684404): Multiple shd processes are running on brick_mux environmet
+- [#1685027](https://bugzilla.redhat.com/1685027): Error handling in /usr/sbin/gluster-eventsapi produces IndexError: tuple index out of range
+- [#1685120](https://bugzilla.redhat.com/1685120): upgrade from 3.12, 4.1 and 5 to 6 broken
+- [#1685414](https://bugzilla.redhat.com/1685414): glusterd memory usage grows at 98 MB/h while running "gluster v profile" in a loop
+- [#1685944](https://bugzilla.redhat.com/1685944): WORM-XLator: Maybe integer overflow when computing new atime
+- [#1686371](https://bugzilla.redhat.com/1686371): Cleanup nigel access and document it
+- [#1686398](https://bugzilla.redhat.com/1686398): Thin-arbiter minor fixes
+- [#1686568](https://bugzilla.redhat.com/1686568): [geo-rep]: Checksum mismatch when 2x2 vols are converted to arbiter
+- [#1686711](https://bugzilla.redhat.com/1686711): [Thin-arbiter] : send correct error code in case of failure
+- [#1687326](https://bugzilla.redhat.com/1687326): [RFE] Revoke access from nodes using Certificate Revoke List in SSL
+- [#1687705](https://bugzilla.redhat.com/1687705): Brick process has coredumped, when starting glusterd
+- [#1687811](https://bugzilla.redhat.com/1687811): core dump generated while running the test ./tests/00-geo-rep/georep-basic-dr-rsync-arbiter.t
+- [#1688068](https://bugzilla.redhat.com/1688068): Proper error message needed for FUSE mount failure when /var is filled.
+- [#1688106](https://bugzilla.redhat.com/1688106): Remove implementation of number of files opened in posix xlator
+- [#1688116](https://bugzilla.redhat.com/1688116): Spurious failure in test ./tests/bugs/glusterfs/bug-844688.t
+- [#1688287](https://bugzilla.redhat.com/1688287): ganesha crash on glusterfs with shard volume
+- [#1689097](https://bugzilla.redhat.com/1689097): gfapi: provide an option for changing statedump path in glfs-api.
+- [#1689799](https://bugzilla.redhat.com/1689799): [cluster/ec] : Fix handling of heal info cases without locks
+- [#1689920](https://bugzilla.redhat.com/1689920): lots of "Matching lock not found for unlock xxx" when using disperse (ec) xlator
+- [#1690753](https://bugzilla.redhat.com/1690753): Volume stop when quorum not met is successful
+- [#1691164](https://bugzilla.redhat.com/1691164): glusterd leaking memory when issued gluster vol status all tasks continuosly
+- [#1691616](https://bugzilla.redhat.com/1691616): client log flooding with intentional socket shutdown message when a brick is down
+- [#1692093](https://bugzilla.redhat.com/1692093): Network throughput usage increased x5
+- [#1692612](https://bugzilla.redhat.com/1692612): Locking issue when restarting bricks
+- [#1692666](https://bugzilla.redhat.com/1692666): ssh-port config set is failing
+- [#1693575](https://bugzilla.redhat.com/1693575): gfapi: do not block epoll thread for upcall notifications
+- [#1693648](https://bugzilla.redhat.com/1693648): Geo-re: Geo replication failing in "cannot allocate memory"
+- [#1693692](https://bugzilla.redhat.com/1693692): Increase code coverage from regression tests
+- [#1694820](https://bugzilla.redhat.com/1694820): Geo-rep: Data inconsistency while syncing heavy renames with constant destination name
+- [#1694925](https://bugzilla.redhat.com/1694925): GF_LOG_OCCASSIONALLY API doesn't log at first instance
+- [#1695327](https://bugzilla.redhat.com/1695327): regression test fails with brick mux enabled.
+- [#1696046](https://bugzilla.redhat.com/1696046): Log level changes do not take effect until the process is restarted
+- [#1696077](https://bugzilla.redhat.com/1696077): Add pause and resume test case for geo-rep
+- [#1696136](https://bugzilla.redhat.com/1696136): gluster fuse mount crashed, when deleting 2T image file from oVirt Manager UI
+- [#1696512](https://bugzilla.redhat.com/1696512): glusterfs build is failing on rhel-6
+- [#1696599](https://bugzilla.redhat.com/1696599): Fops hang when inodelk fails on the first fop
+- [#1697316](https://bugzilla.redhat.com/1697316): Getting SEEK-2 and SEEK7 errors with [Invalid argument] in the bricks' logs
+- [#1697486](https://bugzilla.redhat.com/1697486): bug-1650403.t && bug-858215.t are throwing error "No such file" at the time of access glustershd pidfile
+- [#1697866](https://bugzilla.redhat.com/1697866): Provide a way to detach a failed node
+- [#1697907](https://bugzilla.redhat.com/1697907): ctime feature breaks old client to connect to new server
+- [#1697930](https://bugzilla.redhat.com/1697930): Thin-Arbiter SHD minor fixes
+- [#1698078](https://bugzilla.redhat.com/1698078): ctime: Creation of tar file on gluster mount throws warning "file changed as we read it"
+- [#1698449](https://bugzilla.redhat.com/1698449): thin-arbiter lock release fixes
+- [#1699025](https://bugzilla.redhat.com/1699025): Brick is not able to detach successfully in brick_mux environment
+- [#1699176](https://bugzilla.redhat.com/1699176): rebalance start command doesn't throw up error message if the command fails
+- [#1699189](https://bugzilla.redhat.com/1699189): fix truncate lock to cover the write in tuncate clean
+- [#1699339](https://bugzilla.redhat.com/1699339): With 1800+ vol and simultaneous 2 gluster pod restarts, running gluster commands gives issues once all pods are up
+- [#1699394](https://bugzilla.redhat.com/1699394): [geo-rep]: Geo-rep goes FAULTY with OSError
+- [#1699866](https://bugzilla.redhat.com/1699866): I/O error on writes to a disperse volume when replace-brick is executed
+- [#1700078](https://bugzilla.redhat.com/1700078): disablle + reenable of bitrot leads to files marked as bad
+- [#1700865](https://bugzilla.redhat.com/1700865): FUSE mount seems to be hung and not accessible
+- [#1701337](https://bugzilla.redhat.com/1701337): issues with 'building' glusterfs packages if we do 'git clone --depth 1'
+- [#1701457](https://bugzilla.redhat.com/1701457): ctime: Logs are flooded with "posix set mdata failed, No ctime" error during open
+- [#1702131](https://bugzilla.redhat.com/1702131): The source file is left in EC volume after rename when glusterfsd out of service
+- [#1702185](https://bugzilla.redhat.com/1702185): coredump reported by test ./tests/bugs/glusterd/bug-1699339.t
+- [#1702299](https://bugzilla.redhat.com/1702299): Custom xattrs are not healed on newly added brick
+- [#1702303](https://bugzilla.redhat.com/1702303): Enable enable fips-mode-rchecksum for new volumes by default
+- [#1702952](https://bugzilla.redhat.com/1702952): remove tier related information from manual pages
+- [#1703020](https://bugzilla.redhat.com/1703020): The cluster.heal-timeout option is unavailable for ec volume
+- [#1703629](https://bugzilla.redhat.com/1703629): statedump is not capturing info related to glusterd
+- [#1703948](https://bugzilla.redhat.com/1703948): Self-heal daemon resources are not cleaned properly after a ec fini
+- [#1704252](https://bugzilla.redhat.com/1704252): Creation of bulkvoldict thread logic is not correct while brick_mux is enabled for single volume
+- [#1704888](https://bugzilla.redhat.com/1704888): delete the snapshots and volume at the end of uss.t
+- [#1705865](https://bugzilla.redhat.com/1705865): VM stuck in a shutdown because of a pending fuse request
+- [#1705884](https://bugzilla.redhat.com/1705884): Image size as reported from the fuse mount is incorrect
+- [#1706603](https://bugzilla.redhat.com/1706603): Glusterfsd crashing in ec-inode-write.c, in GF_ASSERT
+- [#1707081](https://bugzilla.redhat.com/1707081): Self heal daemon not coming up after upgrade to glusterfs-6.0-2 (intermittently) on a brick mux setup
+- [#1707700](https://bugzilla.redhat.com/1707700): maintain consistent values across for options when fetched at cluster level or volume level
+- [#1707728](https://bugzilla.redhat.com/1707728): geo-rep: Sync hangs with tarssh as sync-engine
+- [#1707742](https://bugzilla.redhat.com/1707742): tests/geo-rep: arequal checksum comparison always succeeds
+- [#1707746](https://bugzilla.redhat.com/1707746): AFR-v2 does not log before attempting data self-heal
+- [#1708051](https://bugzilla.redhat.com/1708051): Capture memory consumption for gluster process at the time of throwing no memory available message
+- [#1708156](https://bugzilla.redhat.com/1708156): ec ignores lock contention notifications for partially acquired locks
+- [#1708163](https://bugzilla.redhat.com/1708163): tests: fix bug-1319374.c compile warnings.
+- [#1708926](https://bugzilla.redhat.com/1708926): Invalid memory access while executing cleanup_and_exit
+- [#1708929](https://bugzilla.redhat.com/1708929): Add more test coverage for shd mux
+- [#1709248](https://bugzilla.redhat.com/1709248): [geo-rep]: Non-root - Unable to set up mountbroker root directory and group
+- [#1709653](https://bugzilla.redhat.com/1709653): geo-rep: With heavy rename workload geo-rep log if flooded
+- [#1710054](https://bugzilla.redhat.com/1710054): Optimize the glustershd manager to send reconfigure
+- [#1710159](https://bugzilla.redhat.com/1710159): glusterd: While upgrading (3-node cluster) 'gluster v status' times out on node to be upgraded
+- [#1711240](https://bugzilla.redhat.com/1711240): [GNFS]  gf_nfs_mt_inode_ctx serious memory leak
+- [#1711250](https://bugzilla.redhat.com/1711250): bulkvoldict thread is not handling all volumes while brick multiplex is enabled
+- [#1711297](https://bugzilla.redhat.com/1711297): Optimize glusterd code to copy dictionary in handshake code path
+- [#1711764](https://bugzilla.redhat.com/1711764): Files inaccessible if one rebalance process is killed in a multinode volume
+- [#1711820](https://bugzilla.redhat.com/1711820): Typo in cli return string.
+- [#1711827](https://bugzilla.redhat.com/1711827): test case bug-1399598-uss-with-ssl.t  is generating crash
+- [#1712322](https://bugzilla.redhat.com/1712322): Brick logs  inundated with [2019-04-27 22:14:53.378047] I [dict.c:541:dict_get] (-->/usr/lib64/glusterfs/6.0/xlator/features/worm.so(+0x7241) [0x7fe857bb3241] -->/usr/lib64/glusterfs/6.0/xlator/features/locks.so(+0x1c219) [0x7fe857dda219] [Invalid argumen
+- [#1712668](https://bugzilla.redhat.com/1712668): Remove-brick shows warning cluster.force-migration enabled  where as cluster.force-migration is disabled on the volume
+- [#1712741](https://bugzilla.redhat.com/1712741): glusterd_svcs_stop should call individual wrapper function to stop rather than calling the glusterd_svc_stop
+- [#1713730](https://bugzilla.redhat.com/1713730): Failure when glusterd is configured to bind specific IPv6 address. If bind-address is IPv6, *addr_len will be non-zero and it goes to ret = -1 branch, which will cause listen failure eventually
+- [#1714098](https://bugzilla.redhat.com/1714098): Make debugging hung frames easier
+- [#1714415](https://bugzilla.redhat.com/1714415): Script to make it easier to find hung frames
+- [#1714973](https://bugzilla.redhat.com/1714973): upgrade after tier code removal results in peer rejection.
+- [#1715921](https://bugzilla.redhat.com/1715921): uss.t tests times out with brick-mux regression
+- [#1716695](https://bugzilla.redhat.com/1716695): Fix memory leaks that are present even after an xlator fini [client side xlator]
+- [#1716766](https://bugzilla.redhat.com/1716766): [Thin-arbiter] TA process is not picking 24007 as port while starting up
+- [#1716812](https://bugzilla.redhat.com/1716812): Failed to create volume which transport_type is "tcp,rdma"
+- [#1716830](https://bugzilla.redhat.com/1716830): DHT: directory permissions are wiped out
+- [#1717757](https://bugzilla.redhat.com/1717757): WORM: Segmentation Fault if bitrot stub do signature
+- [#1717782](https://bugzilla.redhat.com/1717782): gluster v get <VolumeName> all still showing storage.fips-mode-rchecksum off
+- [#1717819](https://bugzilla.redhat.com/1717819): Changes to self-heal logic w.r.t. detecting metadata split-brains
+- [#1717953](https://bugzilla.redhat.com/1717953): SELinux context labels are missing for newly added bricks using add-brick command
+- [#1718191](https://bugzilla.redhat.com/1718191): Regression: Intermittent test failure for quick-read-with-upcall.t
+- [#1718273](https://bugzilla.redhat.com/1718273): markdown formatting errors in files present under /doc directory of the project
+- [#1718316](https://bugzilla.redhat.com/1718316): Ganesha-gfapi logs are flooded with error messages related to "gf_uuid_is_null(gfid)) [Invalid argument]" when lookups are running from multiple clients
+- [#1718338](https://bugzilla.redhat.com/1718338): Upcall: Avoid sending upcalls for invalid Inode
+- [#1718848](https://bugzilla.redhat.com/1718848): False positive logging of mount failure
+- [#1718998](https://bugzilla.redhat.com/1718998): Fix test case "tests/basic/afr/split-brain-favorite-child-policy.t" failure
+- [#1720201](https://bugzilla.redhat.com/1720201): Healing not proceeding during in-service upgrade on a disperse volume
+- [#1720290](https://bugzilla.redhat.com/1720290): ctime changes:  tar still complains file changed as we read it if uss is enabled
+- [#1720615](https://bugzilla.redhat.com/1720615): [RHEL-8.1] yum update fails for rhel-8 glusterfs client packages 6.0-5.el8
+- [#1720993](https://bugzilla.redhat.com/1720993): tests/features/subdir-mount.t is failing for brick_mux regrssion
+- [#1721385](https://bugzilla.redhat.com/1721385): glusterfs-libs: usage of inet_addr() may impact IPv6
+- [#1721435](https://bugzilla.redhat.com/1721435): DHT: Internal xattrs visible on the mount
+- [#1721441](https://bugzilla.redhat.com/1721441): geo-rep: Fix permissions for GEOREP_DIR in non-root setup
+- [#1721601](https://bugzilla.redhat.com/1721601): [SHD] : logs of one volume are going to log file of other volume
+- [#1722541](https://bugzilla.redhat.com/1722541): stale shd process files leading to heal timing out and heal deamon not coming up for all volumes
+
-- 
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