"disk fill" cannot deatroy about chaosblade HOT 15 CLOSED

It's a bug. The reason for this problem is that --mount-on value should be Mounted on value, but you passed Filesystem value. The blade predicates the --mount-on value by df -h %s | grep -v 'Mounted on' | awk '{print $NF}' command, so even if you pass the Filesystem value, it will be executed successfully. But when invoking destroy command, it cannot find the disk, so cannot delete the temp file and not process the destroy command result, so it returns success.

Thank you for reporting the issue.

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ok. well, I have another question: I found command about mysql by using "./blade create -h", has this been implemented now?

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ok. well, I have another question: I found command about mysql by using "./blade create -h", has this been implemented now?

Yes :-), but currently only for mysql driver in java applications.

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Type: bug report

I used './blade create disk fill --mount-on /home --size 1024' to create disk fill experiment, then I found a file named 'chaos_diskfilled.log.data' in /home, but the size of it is 2G (I use 'du -sh /home/chaos_diskfilled.log.data'), and this could not be destroyed by using './blade destroy uid'

@alisanguo Currently you can solve it in two ways:

1. Delete temp file blade filled under the disk path which is the corresponding mounted.
2. Re-execute the experiment you just did, but change the value of --mount-on to the value of Mounted on corresponding to the Filesystem you passed in.

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I tried the way you provided, but it did not work. My filesystem is /dev/mapper/rootvg-lv_home, and mounted on /home. No matter using filesystem or Mounted on value, it cannot be destroyed.

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I tried the way you provided, but it did not work. My filesystem is /dev/mapper/rootvg-lv_home, and mounted on /home. No matter using filesystem or Mounted on value, it cannot be destroyed.

Can you provide the result of mount command and os version?

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Can you provide the result of mount command and os version?

the result of mount is：

The os version is red hat enterprise linux release 7.2

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Can you provide the result of mount command and os version?

the result of mount is：

The os version is red hat enterprise linux release 7.2

The blade create disk fill --mount-on /home --size 1024 command you executed is right.

The process of filling a disk is as follows:

1. Invoke df -h /home | grep -v 'Mounted on' | awk '{print $NF}' to check the --mount-on flag value.
2. Invoke dd if=/dev/zero of=/home/chaos_filldisk.log.dat bs=1b count=1 iflag=fullblock command to write 1b data to test execution permissions.
   3. Invoke nohup dd if=/dev/zero of=1024 bs=1M count=%s iflag=fullblock > /dev/null 2>&1 & command to fill disk.
3. Invoke nohup dd if=/dev/zero of=/home/chaos_filldisk.log.dat bs=1M count=1024 iflag=fullblock > /dev/null 2>&1 & command to fill disk.

The stop process for the experiment is as follows:

1. Query the dd process id by ps -ef | grep "/home/chaos_filldisk.log.dat" | grep -v grep | awk '{print $2}' | tr '\n' ' ' command.
2. If the process id exists, the program will invoke kill -9 <PID> command.
3. Invoke rm -rf /home/chaos_filldisk.log.dat command to delete the temp file.

Can you follow the above steps to manually execute the command?
First execute the fill disk steps, check the experimental results: the file size is expected or not.
Then execute the stop steps to check if it is deleted normally or not.

@alisanguo Thank you.

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I followed the above steps to manually execute the command like this:

but found the result is:

It seems that the command nohup dd if=/dev/zero of=1024 bs=1M count=%s iflag=fullblock > /dev/null 2>&1 & is not right. A error 'Invalid number %s ' happended

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I followed the above steps to manually execute the command like this:

but found the result is:

It seems that the command nohup dd if=/dev/zero of=1024 bs=1M count=%s iflag=fullblock > /dev/null 2>&1 & is not right. A error 'Invalid number %s ' happended

@alisanguo I'm very sorry for my mistake. The true command is nohup dd if=/dev/zero of=/home/chaos_filldisk.log.dat bs=1M count=1024 iflag=fullblock > /dev/null 2>&1 &, please retry the above steps. Thank you.

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I retry it, and the file /home/chaos_filldisk.log.dat can be removed correctly, but I found two questions:

1. When I use ll /home/chaos_filldisk.log.dat , the size of it is 1024M, but when I use du -sm /home/chaos_filldisk.log.dat, the size of it is 2048, and What is even more strange is that the size of it become 1024M by using du -sm /home/chaos_filldisk.log.dat later on.

2. the file /home/chaos_filldisk.log.dat cannot be removed by using ./blade destroy uid.

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I retry it, and the file /home/chaos_filldisk.log.dat can be removed correctly, but I found two questions:

1. When I use ll /home/chaos_filldisk.log.dat , the size of it is 1024M, but when I use du -sm /home/chaos_filldisk.log.dat, the size of it is 2048, and What is even more strange is that the size of it become 1024M by using du -sm /home/chaos_filldisk.log.dat later on.

1. the file /home/chaos_filldisk.log.dat cannot be removed by using ./blade destroy uid.

I tested again and didn't reproduce your problem.
The results of du -sm /xxx/chaos_filldisk.log.dat command and ll /xxx/chaos_filldisk.log.dat are equal. I destroyed the experiment successfully.

Please check the uid value is right? @alisanguo

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@alisanguo I will close the issue, please reopen it if your problem has not been solved.

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我在mac上执行下面命令会报错：
blade create disk fill -d --mount-point /home --size 1024
错误为：
{"code":604,"success":false,"error":"dd: unknown operand iflag\n exit status 1 exit status 1"}

看了一下上面的讨论，我直接执行下面的命令也会报错
命令为：
dd if=/dev/zero of=/home/chaos_filldisk.log.dat bs=1b count=1 iflag=fullblock
错误为：
dd: unknown operand iflag

问题是：是不是mac系统不支持iflag属性？

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我在mac上执行下面命令会报错：
blade create disk fill -d --mount-point /home --size 1024
错误为：
{"code":604,"success":false,"error":"dd: unknown operand iflag\n exit status 1 exit status 1"}

看了一下上面的讨论，我直接执行下面的命令也会报错
命令为：
dd if=/dev/zero of=/home/chaos_filldisk.log.dat bs=1b count=1 iflag=fullblock
错误为：
dd: unknown operand iflag

问题是：是不是mac系统不支持iflag属性？

是的，mac 不支持磁盘演练，因为 dd 参数不一样。

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