scylladb : scylla_io_setup脚本在输出中未显示推荐的--max-io-request参数

Question

我在docker容器中运行scylla_io_setup脚本，我已经将/var/lib/scylla/ data目录挂载到1TB xfs。输出中未显示建议的--max-io- scylla_io_setup参数。以下是脚本的输出。

[root@ip /]# ./usr/lib/scylla/scylla_io_setup 
tuning /sys/devices/virtual/block/dm-4
tuning: /sys/devices/virtual/block/dm-4/queue/nomerges 2
warning: unable to tune /sys/devices/virtual/block/dm-4/queue/nomerges to 2

tuning /sys/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host0/target0:2:4/0:2:4:0/block/sde
tuning: /sys/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host0/target0:2:4/0:2:4:0/block/sde/queue/nomerges 2
warning: unable to tune /sys/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host0/target0:2:4/0:2:4:0/block/sde/queue/nomerges to 2

tuning /sys/devices/virtual/block/dm-4
tuning /sys/devices/virtual/block/dm-4
tuning /sys/devices/virtual/block/dm-4
tuning /sys/devices/virtual/block/dm-4
WARNING: unable to mbind shard memory; performance may suffer: 
WARN  2020-01-29 10:26:47,892 [shard 0] seastar - Unable to set SCHED_FIFO scheduling policy for timer thread; latency impact possible. Try adding CAP_SYS_NICE
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
WARNING: unable to mbind shard memory; performance may suffer: 
INFO  2020-01-29 10:26:48,161 [shard 0] iotune - /var/lib/scylla/saved_caches passed sanity checks
WARN  2020-01-29 10:26:48,161 [shard 0] iotune - Scheduler for /sys/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host0/target0:2:4/0:2:4:0/block/sde/queue/scheduler set to deadline. It is recommend to set it to noop before evaluation so as not to skew the results.
WARN  2020-01-29 10:26:48,161 [shard 0] iotune - nomerges for /sys/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host0/target0:2:4/0:2:4:0/block/sde/queue/nomerges set to 0. It is recommend to set it to 2 before evaluation so that merges are disabled. Results can be skewed otherwise.
Starting Evaluation. This may take a while...
Measuring sequential write bandwidth: 188 MB/s
Measuring sequential read bandwidth: 424 MB/s
Measuring random write IOPS: 23843 IOPS
Measuring random read IOPS: 66322 IOPS
Writing result to /etc/scylla.d/io_properties.yaml
Writing result to /etc/scylla.d/io.conf

Answer 1

是否将结果写入io.conf？