text: import json
  import logging
  import random
  import time
  import traceback
  
  from ceph.rados_utils import RadosHelper
  
  log = logging.getLogger(__name__)
  
  
  def run(ceph_cluster, **kw):
      """
      CEPH-83571452 RADOS:
      Corrupt snap info of an object and run
      list-inconsistent-snapset
      Steps:
          1. create a replica 3 pool
          2. take few pool snaps with writes on objects b/w every snap
          3. chose NON-PRIMARY osd and bring it down
          4. go to backend and using ceph-object-store tool corrupt the snapset of the object
          5. run deep-scrub on the pg
          6. check rados list-inconsistent-pg <pool>
          7. rados list-inconsistent-snapset <pg>
  
      Args:
          ceph_cluster (ceph.ceph.Ceph): ceph cluster
      """
      log.info("Running CEPH-83571452")
      log.info(run.__doc__)
      ceph_nodes = kw.get("ceph_nodes")
      config = kw.get("config")
      mons = []
  
      role = "client"
      for mnode in ceph_nodes:
          if mnode.role == role:
              mons.append(mnode)
  
      ctrlr = mons[0]
      log.info("chosing mon {cmon} as ctrlrmon".format(cmon=ctrlr.hostname))
      helper = RadosHelper(ctrlr, config, log)
  
      """create a replica pool"""
      pname = "snapcorrupt_{rand}".format(rand=random.randint(0, 10000))
      try:
          helper.create_pool(pname, 1)
          log.info("Pool {pname} created".format(pname=pname))
      except Exception:
          log.error("Failed to create pool")
          log.error(traceback.format_exc())
          return 1
      time.sleep(5)
  
      """Get the target PG,osd for corruption operation"""
      oname = "UNIQUEOBJECT{i}".format(i=random.randint(0, 10000))
      cmd = "osd map {pname} {obj} --format json".format(pname=pname, obj=oname)
      (out, err) = helper.raw_cluster_cmd(cmd)
      outbuf = out.read().decode()
      log.info(outbuf)
      cmdout = json.loads(outbuf)
      targt_pg = cmdout["pgid"]
      targt_osd_id = cmdout["up"][random.randint(1, 2)]
      """write data and take snaps"""
      putobj = "sudo rados -p {pool} put {obj} {path}".format(
          pool=pname, obj=oname, path="/etc/hosts"
      )
      for i in range(10):
          (out, err) = ctrlr.exec_command(cmd=putobj)
          snapcmd = "sudo rados mksnap -p {pool} {sname}".format(
              pool=pname, sname="snap" + str(i)
          )
          (out, err) = ctrlr.exec_command(cmd=snapcmd)
          log.info("put {obj}, snap {snap}".format(obj=oname, snap="snap" + str(i)))
      """
      Goto destination osd, stop the osd
      use ceph-objectstore-tool to corrupt
      snap info
      """
      #    target_osd = ceph_cluster.get_osd_by_id(targt_osd_id)
      #    target_osd_node = target_osd.node
      target_osd_hostname = ceph_cluster.get_osd_metadata(targt_osd_id).get("hostname")
      log.info(target_osd_hostname)
      target_osd_node = ceph_cluster.get_node_by_hostname(target_osd_hostname)
      cot_environment = target_osd_node
      osd_service = ceph_cluster.get_osd_service_name(targt_osd_id)
      partition_path = ceph_cluster.get_osd_metadata(targt_osd_id).get("osd_data")
      helper.kill_osd(target_osd_node, osd_service)
      time.sleep(10)
      osd_metadata = ceph_cluster.get_osd_metadata(targt_osd_id)
      osd_data = osd_metadata.get("osd_data")
      osd_journal = osd_metadata.get("osd_journal")
      if ceph_cluster.containerized:
          docker_image_string = "{docker_registry}/{docker_image}:{docker_tag}".format(
              docker_registry=ceph_cluster.ansible_config.get("ceph_docker_registry"),
              docker_image=ceph_cluster.ansible_config.get("ceph_docker_image"),
              docker_tag=ceph_cluster.ansible_config.get("ceph_docker_image_tag"),
          )
          cot_environment = helper.get_mgr_proxy_container(
              target_osd_node, docker_image_string
          )
          out, err = cot_environment.exec_command(
              cmd='mount | grep "{partition_path} "'.format(
                  partition_path=partition_path
              ),
              check_ec=False,
          )
          device_mount_data = out.read().decode()  # type: str
          if not device_mount_data:
              cot_environment.exec_command(
                  cmd="sudo mount {partition_path} {directory}".format(
                      partition_path=partition_path, directory=osd_data
                  )
              )
  
      slist_cmd = "sudo ceph-objectstore-tool --data-path \
              {osd_data} --journal-path \
              {osd_journal} \
              --head --op list {obj}".format(
          osd_data=osd_data, osd_journal=osd_journal, obj=oname
      )
      (out, err) = cot_environment.exec_command(cmd=slist_cmd)
      outbuf = out.read().decode()
      log.info(outbuf)
  
      corrupt_cmd = "sudo ceph-objectstore-tool --data-path \
              {osd_data} --journal-path \
              {osd_journal} \
              {outbuf} clear-snapset corrupt".format(
          osd_data=osd_data, osd_journal=osd_journal, outbuf="'" + (outbuf) + "'"
      )
      (out, err) = cot_environment.exec_command(cmd=corrupt_cmd)
      outbuf = out.read().decode()
      log.info(outbuf)
  
      helper.revive_osd(target_osd_node, osd_service)
      time.sleep(10)
      run_scrub = "pg deep-scrub {pgid}".format(pgid=targt_pg)
      (out, err) = helper.raw_cluster_cmd(run_scrub)
      outbuf = out.read().decode()
      log.info(outbuf)
  
      while "HEALTH_ERR" and "active+clean+inconsistent" not in outbuf:
          status = "-s --format json"
          (out, err) = helper.raw_cluster_cmd(status)
          outbuf = out.read().decode()
      log.info("HEALTH_ERR found as expected")
      log.info("inconsistent foud as expected")
  
      timeout = 300
      found = 0
      while timeout:
          incon_pg = "sudo rados list-inconsistent-pg {pname}".format(pname=pname)
          (out, err) = ctrlr.exec_command(cmd=incon_pg)
          outbuf = out.read().decode()
          log.info(outbuf)
          if targt_pg not in outbuf:
              time.sleep(1)
              timeout = timeout - 1
          else:
              found = 1
              break
      if timeout == 0 and found == 0:
          log.error("pg not listed as inconsistent")
          return 1
  
      timeout = 300
      found = 0
      # need to check for inconsistent obj before checking for -
      # - inconsistent snapset in case of snapset corruption on primary osds
      while timeout:
          incon_snap = "sudo rados list-inconsistent-obj {pg}".format(pg=targt_pg)
          (out, err) = ctrlr.exec_command(cmd=incon_snap)
          outbuf = out.read().decode()
          log.info(outbuf)
          if oname not in outbuf:
              time.sleep(1)
              timeout = timeout - 1
          else:
              found = 1
              break
      if timeout == 0 and found == 0:
          log.error("object is not listed in inconsistent obj/snap")
          return 1
  
      return 0
  