Increasing the disk space available to a virtual appliance using Logical Volume Management (LVM) in API Gateway version 10.x
Article ID: 207378
Updated On:
Products
Issue/Introduction
While applying the December 2020 platform patch to the Gateway, there was the following error: (also occur on any patch with mysql 8 update )
2021-01-25T10:23:12.583-0800 INFO 28 com.l7tech.server.processcontroller.patching.PatchServiceApiImpl: Output from patch install: INFO : for mount point "/" there is "3311067136" bytes available and "4114097157" bytes are required
2021-01-25T10:23:12.592-0800 INFO 28 com.l7tech.server.processcontroller.patching.PatchServiceApiImpl: Output from patch install: ERROR : installing RPMs requires 4114097157 bytes of space on / mount point but only 3311067136 bytes are available
2021-01-25T10:23:12.596-0800 INFO 28 com.l7tech.server.processcontroller.patching.PatchServiceApiImpl: Output from patch install: Error installing patch: Error executing patch task: non-zero exit code returned from patch install script (returned 1)
Environment
API Gateway: 10.X
Cause
The size of MySQL update is greater than the default disk space allocation of the OVA.
Resolution
IMPORTANT - Take a snapshot of the image prior to running these steps
(1) Expand disk space with unused allocations:
Follow the steps in VMWARE KB to add hard disk the space of vg00-lv_root: Extending a logical volume in a virtual machine running Red Hat or Cent OS (1006371)
(2) Check Disk
# fdisk -l
Disk /dev/sda: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000b0670
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 125829119 61864960 8e Linux LVM
(3) Start the disk partitioning tool and target the newly installed disk:
# fdisk /dev/sdb
This command opens up a new command shell. Options are selected by choosing the appropriate alphanumeric option and pressing the <Enter> key
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000b0670
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 125829119 61864960 8e Linux LVM
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): p
Partition number (3,4, default 3): 3
First sector (125829120-209715199, default 125829120): Return
Using default value 125829120
Last sector, +sectors or +size{K,M,G} (125829120-209715199, default 209715199): Return
Using default value 209715199
Partition 3 of type Linux and of size 40 GiB is set
Command (m for help): t
Partition number (1-3, default 3): 3
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
(4) REBOOT
# fdisk -l
Disk /dev/sda: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000b0670
(5) Extends physical volume
# vgextend vg00 /dev/sda3
Volume group "vg00" successfully extended
(6) Command to get Volume Group
# vgdisplay
--- Volume group ---
VG Name vg00
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 12
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 10
Open LV 9
Max PV 0
Cur PV 2
Act PV 2
VG Size 98.99 GiB
PE Size 4.00 MiB
Total PE 25342
Alloc PE / Size 15103 / <59.00 GiB
Free PE / Size 10239 / <40.00 GiB
VG UUID Me3yGi-2H3m-PRqK-BNpO-BGfy-pDQT-S6ycub
(7) Command to get Logical Volume name(lv_root) & Volume Group name (vg00)
# lvdisplay
--- Logical volume ---
LV Path /dev/vg00/lv_root
LV Name lv_root
VG Name vg00
LV UUID UqQRvT-7SKj-Qmdu-xNfG-wcNU-r6nn-DAAEYu
LV Write Access read/write
LV Creation host, time dhcp-10-175-245-93, 2020-03-19 18:35:04 -0400
LV Status available
# open 1
LV Size 8.00 GiB
Current LE 2048
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
(8) Check Free space
# vgdisplay vg00 | grep "Free"
Free PE / Size 10199 / <39.84 GiB
(9) Extend Logical volume
# lvextend -L +39GB /dev/vg00/lv_root
Size of logical volume vg00/lv_root changed from <8.16 GiB (2088 extents) to <47.16 GiB (12072 extents).
Logical volume vg00/lv_root successfully resized.
(10) Expand filesystem Centos use command “resize2fs”
# resize2fs /dev/vg00/lv_root
resize2fs 1.42.9 (28-Dec-2013)
Filesystem at /dev/vg00/lv_root is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 3
The filesystem on /dev/vg00/lv_root is now 12361728 blocks long.
(11) Recheck SPACE new size 40GB
# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 2.0G 0 2.0G 0% /dev
tmpfs 2.0G 0 2.0G 0% /dev/shm
tmpfs 2.0G 9.1M 2.0G 1% /run
tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
/dev/mapper/vg00-lv_root 47G 4.8G 40G 11% /
/dev/sda1 976M 70M 855M 8% /boot
/dev/mapper/vg00-lv_home 4.8G 1.4G 3.2G 31% /home
/dev/mapper/vg00-lv_var 2.9G 92M 2.7G 4% /var
/dev/mapper/vg00-lv_tmp 6.8G 17M 6.4G 1% /tmp
/dev/mapper/vg00-lv_log 2.0G 4.5M 1.9G 1% /var/log
/dev/mapper/vg00-lv_db 21G 279M 20G 2% /var/lib/mysql
/dev/mapper/vg00-lv_opt 6.8G 1.9G 4.6G 30% /opt
/dev/mapper/vg00-lv_audit 2.0G 4.6M 1.9G 1% /var/log/audit
tmpfs 396M 0 396M 0% /run/user/1006
tmpfs 396M 0 396M 0% /run/user/1005
tmpfs 396M 0 396M 0% /run/user/1001
tmpfs 396M 0 396M 0% /run/user/1002
(12) Apply the same patch again
You have chosen to install the following patch
" Layer7_API_PlatformUpdate_64bit_v10.X-CentOS-2020-12-21 "
Press [Enter] to continue
Please wait while the patch is installed ...
Patch ID Layer7_API_PlatformUpdate_64bit_v10.X-CentOS-2020-12-21 (Upgrades the Layer7 API 64bit Platform to the 10.X-CentOS-2020-12-21 version. This patch requires that the 10.X Platform Update be installed first. It also requires a restart of the Layer7 API Gateway Appliance.) is INSTALLED, last modified on 2021-01-27T12:25:51-0500
Patch operation completed successfully.
Additional Information
Also occurred when installed Layer7_API_PlatformUpdate_64bit_v10.1.00-CentOS
Article used to solve partition /var/lib/mysql at 100% full wont start
Once expanded and mysql start
Access mysql and purge audit table
mysql>mysql -u root -p
mysql >use ssg
SET FOREIGN_KEY_CHECKS = 0;
truncate table audit_admin;
truncate table audit_detail;
truncate table audit_detail_params;
truncate table audit_main;
truncate table audit_message;
truncate table audit_system;
SET FOREIGN_KEY_CHECKS = 1;
analyze table ssg.audit_admin;
analyze table ssg.audit_detail;
analyze table ssg.audit_detail_params;
analyze table ssg.audit_main;
analyze table ssg.audit_message;
analyze table ssg.audit_system;
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