""" Handle osdfailsafe configuration settings (nearfull ratio and full ratio) """ from cStringIO import StringIO import logging import time import ceph_manager from teuthology.orchestra import run from util.rados import rados from teuthology import misc as teuthology log = logging.getLogger(__name__) def task(ctx, config): """ Test handling of osd_failsafe_nearfull_ratio and osd_failsafe_full_ratio configuration settings In order for test to pass must use log-whitelist as follows tasks: - chef: - install: - ceph: log-whitelist: ['OSD near full', 'OSD full dropping all updates'] - osd_failsafe_enospc: """ if config is None: config = {} assert isinstance(config, dict), \ 'osd_failsafe_enospc task only accepts a dict for configuration' first_mon = teuthology.get_first_mon(ctx, config) (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys() manager = ceph_manager.CephManager( mon, ctx=ctx, logger=log.getChild('ceph_manager'), ) ctx.manager = manager # Give 2 seconds for injectargs + osd_op_complaint_time (30) + 2 * osd_heartbeat_interval (6) + 6 padding sleep_time = 50 # something that is always there dummyfile = '/etc/fstab' dummyfile2 = '/etc/resolv.conf' # create 1 pg pool with 1 rep which can only be on osd.0 osds = manager.get_osd_dump() for osd in osds: if osd['osd'] != 0: manager.mark_out_osd(osd['osd']) log.info('creating pool foo') manager.create_pool("foo") manager.raw_cluster_cmd('osd', 'pool', 'set', 'foo', 'size', '1') # State NONE -> NEAR log.info('1. Verify warning messages when exceeding nearfull_ratio') proc = mon.run( args=[ 'daemon-helper', 'kill', 'ceph', '-w' ], stdin=run.PIPE, stdout=StringIO(), wait=False, ) manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_nearfull_ratio .00001') time.sleep(sleep_time) proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w proc.wait() lines = proc.stdout.getvalue().split('\n') count = len(filter(lambda line: '[WRN] OSD near full' in line, lines)) assert count == 2, 'Incorrect number of warning messages expected 2 got %d' % count count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines)) assert count == 0, 'Incorrect number of error messages expected 0 got %d' % count # State NEAR -> FULL log.info('2. Verify error messages when exceeding full_ratio') proc = mon.run( args=[ 'daemon-helper', 'kill', 'ceph', '-w' ], stdin=run.PIPE, stdout=StringIO(), wait=False, ) manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .00001') time.sleep(sleep_time) proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w proc.wait() lines = proc.stdout.getvalue().split('\n') count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines)) assert count == 2, 'Incorrect number of error messages expected 2 got %d' % count log.info('3. Verify write failure when exceeding full_ratio') # Write data should fail ret = rados(ctx, mon, ['-p', 'foo', 'put', 'newfile1', dummyfile]) assert ret != 0, 'Expected write failure but it succeeded with exit status 0' # Put back default manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .97') time.sleep(10) # State FULL -> NEAR log.info('4. Verify write success when NOT exceeding full_ratio') # Write should succeed ret = rados(ctx, mon, ['-p', 'foo', 'put', 'newfile2', dummyfile2]) assert ret == 0, 'Expected write to succeed, but got exit status %d' % ret log.info('5. Verify warning messages again when exceeding nearfull_ratio') proc = mon.run( args=[ 'daemon-helper', 'kill', 'ceph', '-w' ], stdin=run.PIPE, stdout=StringIO(), wait=False, ) time.sleep(sleep_time) proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w proc.wait() lines = proc.stdout.getvalue().split('\n') count = len(filter(lambda line: '[WRN] OSD near full' in line, lines)) assert count == 1 or count == 2, 'Incorrect number of warning messages expected 1 or 2 got %d' % count count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines)) assert count == 0, 'Incorrect number of error messages expected 0 got %d' % count manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_nearfull_ratio .90') time.sleep(10) # State NONE -> FULL log.info('6. Verify error messages again when exceeding full_ratio') proc = mon.run( args=[ 'daemon-helper', 'kill', 'ceph', '-w' ], stdin=run.PIPE, stdout=StringIO(), wait=False, ) manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .00001') time.sleep(sleep_time) proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w proc.wait() lines = proc.stdout.getvalue().split('\n') count = len(filter(lambda line: '[WRN] OSD near full' in line, lines)) assert count == 0, 'Incorrect number of warning messages expected 0 got %d' % count count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines)) assert count == 2, 'Incorrect number of error messages expected 2 got %d' % count # State FULL -> NONE log.info('7. Verify no messages settings back to default') manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .97') time.sleep(10) proc = mon.run( args=[ 'daemon-helper', 'kill', 'ceph', '-w' ], stdin=run.PIPE, stdout=StringIO(), wait=False, ) time.sleep(sleep_time) proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w proc.wait() lines = proc.stdout.getvalue().split('\n') count = len(filter(lambda line: '[WRN] OSD near full' in line, lines)) assert count == 0, 'Incorrect number of warning messages expected 0 got %d' % count count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines)) assert count == 0, 'Incorrect number of error messages expected 0 got %d' % count log.info('Test Passed') # Bring all OSDs back in manager.remove_pool("foo") for osd in osds: if osd['osd'] != 0: manager.mark_in_osd(osd['osd'])