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GreenPlum版本概要
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Greenplum Database is a massively parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing
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RELEASE NOTES
Greenplum Database 4.3.9.1 Release Notes
Rev: A02
Updated: August, 2016
Welcome to Pivotal Greenplum Database 4.3.9.1
Greenplum Database is a massively parallel processing (MPP) database server that supports next
generation data warehousing and large-scale analytics processing. By automatically partitioning data
and running parallel queries, it allows a cluster of servers to operate as a single database supercomputer
performing tens or hundreds times faster than a traditional database. It supports SQL, MapReduce parallel
processing, and data volumes ranging from hundreds of gigabytes, to hundreds of terabytes.
Warning: For Greenplum Database 4.3.7.x, 4.3.8.x, or 4.3.9.x that is installed on any release
of Red Hat Enterprise Linux 7 or CentOS 7, an operating system issue might cause Greenplum
Database that is running large workloads to hang in the workload.
A new version of the Linux kernel with patches that resolves the issue will be available in RHEL 7.3.
If you require Greenplum Database to run on the current Red Hat Enterprise Linux 7, contact Red
Hat Support to download and install the latest errata kernel.
The Greenplum Database issue is caused by these kernel bugs referenced by Red Hat.
• Bug 1238749 - Backport rhashtable changes from upstream
• Bug 1316093 - Backport of da314c9923fe and 1f770c0a09 into RHEL-7
Note: This document contains pertinent release information about Greenplum Database 4.3.9.1.
For previous versions of the release notes for Greenplum Database, go to Pivotal Documentation
or EMC Support Zone. For information about Greenplum Database end of life, see Greenplum
Database end of life policy.
Important: Pivotal Global Support Services (GSS) does not provide support for open source
versions of Greenplum Database. Only Pivotal Greenplum Database is supported by Pivotal GSS.
About Greenplum Database 4.3.9.1
Greenplum Database 4.3.9.1 is a maintenance release that resolves known issues and includes some
enhancements and changes. Please refer to the following sections for more information about this release.
• Product Enhancements
• Changed Features
• Deprecated Features
• Supported Platforms
Greenplum Database 4.3.9.1 Release Notes Release Notes
2
• Resolved Issues in Greenplum Database 4.3.9.1
• Known Issues in Greenplum Database 4.3.9.1
• Upgrading to Greenplum Database 4.3.9.1
• Greenplum Database Tools Compatibility
• Greenplum Database Extensions Compatibility
• Hadoop Distribution Compatibility
• Greenplum Database 4.3.9.1 Documentation
Product Enhancements
• External Table s3 Protocol Enhancement—The s3 protocol now enables you to access filenames
that include one or more of the special characters !@$?&*()_+-=.,. In order to reference a file that
contains any of these characters, you must provide a non-URI-encoded URL string in the LOCATION
clause of CREATE EXTERNAL TABLE.
For information about external tables, see the Greenplum Database Administrator Guide. For
information about the CREATE EXTERNAL TABLE command, see the Greeplum Database Reference
Guide.
Changed Features
• The minimum value for the S3 configuration file parameter chunksize was changed from 2MB to 8MB.
If you specify a value smaller than 8MB, the s3 protocol uses 8MB instead.
• gpcrondump now enables history logging by default. The new -H option disables recording dump
details in the public.gpcrondump_history table in the database supplied via the -x option. The -h
option, previously used to enable history logging, is deprecated in this release.
Deprecated Features
The gpcrondump -h option is deprecated in this release, as history logging is now enabled by default.
Downloading Greenplum Database
These are the locations of the Greenplum Database software and documentation:
• Greenplum Database 4.3.x software is available from Pivotal Network.
• Current release Greenplum Database documentation is available from the Pivotal Documentation site.
Previous release versions of Greenplum Database documentation, as well as other Greenplum
Database documents, are available from EMC Support Zone.
Supported Platforms
Greenplum Database 4.3.9.1 runs on the following platforms:
• Red Hat Enterprise Linux 64-bit 7.x (See Supported Platform Notes. See the Warning in Welcome)
• Red Hat Enterprise Linux 64-bit 6.x
• Red Hat Enterprise Linux 64-bit 5.x
• SuSE Linux Enterprise Server 64-bit 11 SP1, 11 SP2, 11 SP4
• Oracle Unbreakable Linux 64-bit 5.5
• CentOS 64-bit 7.x
Greenplum Database 4.3.9.1 Release Notes Release Notes
3
• CentOS 64-bit 6.x
• CentOS 64-bit 5.x
Important: Support for SuSE Linux Enterprise Server 64-bit 10 SP4 has been dropped for
Greenplum Database 4.3.9.1. See #topic_ifq_qjq_yv
Greenplum Database 4.3.x supports these Java versions:
• 8.xxx
• 7.xxx
• 6.xxx
Greenplum Database 4.3.x supports Data Domain Boost on Red Hat Enterprise Linux.
This table lists the versions of Data Domain Boost SDK and DDOS supported by Greenplum Database
4.3.x.
Table 1: Data Domain Boost Compatibility
Greenplum Database Data Domain Boost DDOS
4.3.9.1
4.3.9.0
4.3.8.1
3.0.0.3 5.7 (all versions)
5.6 (all versions)
5.5 (all versions)
5.4 (all versions)
5.3 (all versions)
4.3.8.0 3.0.0.3 5.6 (all versions)
5.5 (all versions)
5.4 (all versions)
5.3 (all versions)
4.3.7.3
4.3.7.2
4.3.7.1
4.3.7.0
3.0.0.3 5.6 (all versions)
5.5 (all versions)
5.4 (all versions)
5.3 (all versions)
4.3.6.2
4.3.6.1
4.3.6.0
3.0.0.3 5.6 (all versions)
5.5.0.x
5.4 (all versions)
5.3 (all versions)
4.3.5.3
4.3.5.2
4.3.5.1
4.3.5.0
3.0.0.3 5.5.0.x
5.4 (all versions)
5.3 (all versions)
4.3.4.2
4.3.4.1
4.3.4.0
3.0.0.3 5.5.0.x
5.4 (all versions)
5.3 (all versions)
Greenplum Database 4.3.9.1 Release Notes Release Notes
4
Greenplum Database Data Domain Boost DDOS
4.3.3.0 2.6.2.0 5.2, 5.3, and 5.4
4.3.2.0 2.6.2.0 5.2, 5.3, and 5.4
4.3.1.0 2.6.2.0 5.2, 5.3, and 5.4
4.3.0.0 2.4.2.2 5.0.1.0, 5.1, and 5.2
Note: In addition to the DDOS versions listed in the previous table, Greenplum Database 4.3.4.0
and later supports all minor patch releases (fourth digit releases) later than the certified version.
Greenplum Database support on DCA:
• Greenplum Database 4.3.x, all versions, is supported on DCA V3.
• Greenplum Database 4.3.x, all versions, is supported on DCA V2, and requires DCA software version
2.1.0.0 or greater due to known DCA software issues in older DCA software versions.
• Greenplum Database 4.3.x, all versions, is supported on DCA V1, and requires DCA software version
1.2.2.2 or greater due to known DCA software issues in older DCA software versions.
Note: Greenplum Database 4.3.9.1 does not support the ODBC driver for Cognos Analytics V11.
In the next major release of Greenplum Database, connecting to IBM Cognos software with an
ODBC driver will not be supported. Greenplum Database supports connecting to IBM Cognos
software with a JDBC driver.
Pivotal recommends that you migrate to a version of IBM Cognos software that supports
connectivity to Greenplum Database with a JDBC driver.
Supported Platform Notes
The following notes describe platform support for Greenplum Database. Please send any questions or
comments to Pivotal Support at https://support.pivotal.io.
• The only file system supported for running Greenplum Database is the XFS file system. All other file
systems are explicitly not supported by Pivotal.
• Greenplum Database is supported on all 1U and 2U commodity servers with local storage. Special
purpose hardware that is not commodity may be supported at the full discretion of Pivotal Product
Management based on the general similarity of the hardware to commodity servers.
• Greenplum Database is supported on network or shared storage if the shared storage is presented
as a block device to the servers running Greenplum Database and the XFS file system is mounted
on the block device. Network file systems are not supported. When using network or shared
storage, Greenplum Database mirroring must be used in the same way as with local storage, and no
modifications may be made to the mirroring scheme or the recovery scheme of the segments. Other
features of the shared storage such as de-duplication and/or replication are not directly supported by
Pivotal Greenplum Database, but may be used with support of the storage vendor as long as they do
not interfere with the expected operation of Greenplum Database at the discretion of Pivotal.
• Greenplum Database is supported when running on virtualized systems, as long as the storage
is presented as block devices and the XFS file system is mounted for the storage of the segment
directories.
• A minimum of 10-gigabit network is required for a system configuration to be supported by Pivotal.
• Greenplum Database is supported on Amazon Web Services (AWS) servers using either Amazon
instance store (Amazon uses the volume names ephemeral[0-20]) or Amazon Elastic Block Store
(Amazon EBS) storage. If using Amazon EBS storage the storage should be RAID of Amazon EBS
volumes and mounted with the XFS file system for it to be a supported configuration.
• For Red Hat Enterprise Linux 7.2 or CentOS 7.2, the default systemd setting RemoveIPC=yes
removes IPC connections when non-system users logout. This causes the Greenplum Database
Greenplum Database 4.3.9.1 Release Notes Release Notes
5
utility gpinitsystem to fail with semaphore errors. To avoid this issue, see "Setting the Greenplum
Recommended OS Parameters" in the Greenplum Database Installation Guide.
Resolved Issues in Greenplum Database 4.3.9.1
The table below lists issues that are now resolved in Pivotal Greenplum Database 4.3.9.1
For issues resolved in prior 4.3 releases, refer to the corresponding release notes. Release notes are
available from Pivotal Network or on the Pivotal Greenplum Database documentation site at Release
Notes. A consolidated list of resolved issues for all 4.3 releases is also available on the documentation site.
Table 2: Resolved Issues in 4.3.9.1
Issue
Number
Category Resolved In Description
26059 Management
Scripts:
master
mirroring
4.3.9.1 gpinitstandby could take a long time to complete if
large files were stored under gpperfmon/logs, because
gpinitstandby unnecessarily synchronized those files to
the standby host. Also, gpinitstandby excluded the gp_
dumps directory from synchronization, whereas the correct
directory name to exclude is db_dumps.
This issue has been resolved by excluding the
gpperfmon/logs and db_dumps directories from
gpinitstandby synchronization.
26348,
26463
Locking,
Signals,
Processes
4.3.9.1 When SSL connections were enabled, a query could hang
in a deadlock situation wherein the query could not be
terminated using the pg_terminate_backend function.
The associated idle session would remain in pg_lock.
This issue has been resolved.
26405 Locking,
Signals,
Processes
4.3.9.1 Poor spinlock performance in the Master segment could
result in high CPU utilization (up to 100%) under highly-
concurrent workloads.
This issue was resolved by patching the associated lock
implementation.
26456 gpperfmon 4.3.9.1 Certain commands and operations were added to the
gpperfmon database query_now and query_history
tables with anomalous tsubmit dates in 1969. These
commands and operations include EXPLAIN/ANALYZE
and COPY commands and, depending on the logging level,
some service and function calls. This has been fixed.
26481 Storage:
Segment
Mirroring
4.3.9.1 In rare cases, inserts into an append-only table could fail
and then cause queries against the table to fail with the
error:
ERROR: Header checksum does not match
This issue has been resolved.
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