infiniswap安装
环境：ubuntu14.04，内核4.04
uname -a
Linux ubuntu 4.4.0-142-generic #168~14.04.1-Ubuntu SMP Sat Jan 19 11:26:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
克隆项目：
git clone https://github.com/SymbioticLab/Infiniswap.git
1. 客户端守护进程安装
-
客户端编译安装：
cd setup ./install daemon -
运行客户端守护程序：
cd ../infiniswap_daemon ./infiniswap-daemon 192.168.2.221 9400ip地址 192.168.2.221 是客户端所在主机 ib网卡的地址。
2. 服务端块设备（交换分区）安装
-
进入 setup 目录，修改 install.h
cd setup vim install.h -
修改内容主要是以下两个：
#have the kernel patch for lookup_bdev()
#(HAVE_LOOKUP_BDEV_PATCH), default is undefined
have_lookup_bdev_patch=1
#name of physical backup disk
#(BACKUP_DISK), default is "/dev/sda4"
backup_disk="/dev/vdb"
如果以上两项未修改正确，无法编译通过。
-
服务端编译生成内核模块：
cd setup ./install bd -
服务端配置 portal.list
vim portal.list1
192.168.2.221:9400
第一行为daemon的数量，后面每行为一个daemon的 ip:port
-
服务端安装块设备，设置为交换分区：
./infiniswap_bd_setup.sh如果执行
./infiniswap_bd_setup.sh出错，可以一步一步执行，该文件内容如下：modprobe infiniswap mount -t configfs none /sys/kernel/config nbdxadm -o create_host -i 0 -p $PWD/portal.list #portal.list nbdxadm -o create_device -i 0 -d 0 ls /dev/infiniswap0 mkswap /dev/infiniswap0 swapon /dev/infiniswap0成功挂载为交换分区后，打印的内核日志：
[ 94.543854] IS_create_configfs_files
[ 99.157269] IS_session_make_group, name=infiniswaphost0
[ 99.157330] portal_attr_store, buf=1,192.168.2.221:9400,
[ 99.157335] In IS_session_create() with portal: rdma://1,192.168.2.221:9400,
[ 99.157527] rdma://1,192.168.2.221:9400,
[ 99.157879] portal: 192.168.2.221, 9400
[ 99.158040] IS_create_conn with cpu: 0
[ 99.158042] IS_create_conn with cpu: 1
[ 102.866554] IS_device_make_group, name=infiniswap0
[ 102.866612] device_attr_store
[ 102.866616] In IS_create_device(), dev_name:infiniswap0
[ 102.866619] IS: st_size = 12884901888
[ 102.866621] IS_register_block_device
[ 102.867318] IS_init_hctx called index=0 xq=ffff880079327e80
[ 102.867323] IS_init_hctx called index=1 xq=ffff880079327e98
[ 102.867349] IS_register_block_device, dev_name infiniswap0
[ 102.867543] IS: init done
[ 102.868987] stackbd: init done
[ 102.868995] Opened /dev/vdb
[ 102.869010] stackbd: Device real capacity: 29360128
[ 102.869013] stackbd: Max sectors: 8
[ 102.869053] stackbd: done initializing successfully
[ 112.873800] rdma_trigger
[ 211.265717] kernel_cb_init, created cm_id ffff88003633a000
[ 211.265842] cma_event type 0 cma_id ffff88003633a000 (parent)
[ 211.266119] cma_event type 2 cma_id ffff88003633a000 (parent)
[ 211.266161] rdma_resolve_addr - rdma_resolve_route successful
[ 211.266641] created pd ffff880078b8b5c0
[ 211.267343] created cq ffff880036338800
[ 211.269382] created qp ffff880036338c00
[ 211.269388] IS: IS_setup_buffers called on cb ffff88007a9b5000
[ 211.269391] IS: size of IS_rdma_info 392
[ 211.269394] IS: cb->mem=1
[ 211.269396] IS: IS_setup_buffers, in cb->mem==DMA
[ 211.269619] IS: allocated & registered buffers...
[ 211.282962] cma_event type 9 cma_id ffff88003633a000 (parent)
[ 211.282974] ESTABLISHED
[ 211.282990] rdma_connect successful
[ 211.285548] IS_ctx_dma_setup, setup_ctx_dma
[ 211.285734] evict_handler, waiting for STOP msg
[ 211.463865] Received rkey 80709 addr 7fd423fff000 from peer
[ 211.517175] Received rkey 80608 addr 7fd3e3ffd000 from peer
[ 239.423567] Adding 12582908k swap on /dev/infiniswap0. Priority:-1 extents:1 across:12582908k SSFS
-
在Infiniswap目录编写了服务端启动脚本
r_bd.sh：#!/bin/bash pwd=111111 swaps='/dev/vda5' cd setup echo $pwd | sudo -S swapon -s for i in $swaps; do echo $pwd | sudo -S swapoff $i done ./infiniswap_bd_setup.sh echo $pwd | sudo -S swapon -s其中， swaps的值
/dev/vda5使通过swapon -s查看到的交换分区名字，可设置多个，如：'/dev/vda5 /dev/vda6'，pwd 是登录账号的密码。添加可执行权限：
chmod +x r_bd.sh运行bd：
./r_bd.sh
