Add zilstat script to report zil kstats in a user friendly manner
Added a python script to process both global and per dataset zil kstats and report them in a user friendly manner similar to arcstat and dbufstat. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Signed-off-by: Ameer Hamza <ahamza@ixsystems.com> Closes #13704
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@ -100,12 +100,13 @@ endif
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if USING_PYTHON
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bin_SCRIPTS += arc_summary arcstat dbufstat
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CLEANFILES += arc_summary arcstat dbufstat
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dist_noinst_DATA += %D%/arc_summary %D%/arcstat.in %D%/dbufstat.in
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bin_SCRIPTS += arc_summary arcstat dbufstat zilstat
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CLEANFILES += arc_summary arcstat dbufstat zilstat
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dist_noinst_DATA += %D%/arc_summary %D%/arcstat.in %D%/dbufstat.in %D%/zilstat.in
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$(call SUBST,arcstat,%D%/)
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$(call SUBST,dbufstat,%D%/)
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$(call SUBST,zilstat,%D%/)
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arc_summary: %D%/arc_summary
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$(AM_V_at)cp $< $@
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endif
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467
cmd/zilstat.in
Executable file
467
cmd/zilstat.in
Executable file
@ -0,0 +1,467 @@
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#!/usr/bin/env @PYTHON_SHEBANG@
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#
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# Print out statistics for all zil stats. This information is
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# available through the zil kstat.
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License, Version 1.0 only
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# (the "License"). You may not use this file except in compliance
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# with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or https://opensource.org/licenses/CDDL-1.0.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# This script must remain compatible with Python 3.6+.
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#
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import sys
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import subprocess
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import time
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import copy
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import os
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import re
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import signal
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from collections import defaultdict
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import argparse
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from argparse import RawTextHelpFormatter
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cols = {
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# hdr: [size, scale, kstat name]
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"time": [8, -1, "time"],
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"pool": [12, -1, "pool"],
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"ds": [12, -1, "dataset_name"],
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"obj": [12, -1, "objset"],
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"zcc": [10, 1000, "zil_commit_count"],
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"zcwc": [10, 1000, "zil_commit_writer_count"],
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"ziic": [10, 1000, "zil_itx_indirect_count"],
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"zic": [10, 1000, "zil_itx_count"],
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"ziib": [10, 1024, "zil_itx_indirect_bytes"],
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"zicc": [10, 1000, "zil_itx_copied_count"],
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"zicb": [10, 1024, "zil_itx_copied_bytes"],
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"zinc": [10, 1000, "zil_itx_needcopy_count"],
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"zinb": [10, 1024, "zil_itx_needcopy_bytes"],
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"zimnc": [10, 1000, "zil_itx_metaslab_normal_count"],
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"zimnb": [10, 1024, "zil_itx_metaslab_normal_bytes"],
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"zimsc": [10, 1000, "zil_itx_metaslab_slog_count"],
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"zimsb": [10, 1024, "zil_itx_metaslab_slog_bytes"],
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}
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hdr = ["time", "pool", "ds", "obj", "zcc", "zcwc", "ziic", "zic", "ziib", \
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"zicc", "zicb", "zinc", "zinb", "zimnc", "zimnb", "zimsc", "zimsb"]
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ghdr = ["time", "zcc", "zcwc", "ziic", "zic", "ziib", "zicc", "zicb",
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"zinc", "zinb", "zimnc", "zimnb", "zimsc", "zimsb"]
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cmd = ("Usage: zilstat [-hgdv] [-i interval] [-p pool_name]")
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curr = {}
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diff = {}
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kstat = {}
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ds_pairs = {}
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pool_name = None
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dataset_name = None
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interval = 0
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sep = " "
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gFlag = True
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dsFlag = False
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def prettynum(sz, scale, num=0):
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suffix = [' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z']
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index = 0
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save = 0
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if scale == -1:
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return "%*s" % (sz, num)
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# Rounding error, return 0
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elif 0 < num < 1:
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num = 0
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while num > scale and index < 5:
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save = num
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num = num / scale
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index += 1
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if index == 0:
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return "%*d" % (sz, num)
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if (save / scale) < 10:
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return "%*.1f%s" % (sz - 1, num, suffix[index])
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else:
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return "%*d%s" % (sz - 1, num, suffix[index])
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def print_header():
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global hdr
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global sep
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for col in hdr:
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new_col = col
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if interval > 0 and col not in ['time', 'pool', 'ds', 'obj']:
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new_col += "/s"
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sys.stdout.write("%*s%s" % (cols[col][0], new_col, sep))
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sys.stdout.write("\n")
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def print_values(v):
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global hdr
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global sep
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for col in hdr:
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val = v[cols[col][2]]
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if col not in ['time', 'pool', 'ds', 'obj'] and interval > 0:
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val = v[cols[col][2]] // interval
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sys.stdout.write("%s%s" % (
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prettynum(cols[col][0], cols[col][1], val), sep))
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sys.stdout.write("\n")
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def print_dict(d):
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for pool in d:
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for objset in d[pool]:
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print_values(d[pool][objset])
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def detailed_usage():
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sys.stderr.write("%s\n" % cmd)
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sys.stderr.write("Field definitions are as follows:\n")
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for key in cols:
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sys.stderr.write("%11s : %s\n" % (key, cols[key][2]))
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sys.stderr.write("\n")
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sys.exit(0)
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def init():
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global pool_name
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global dataset_name
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global interval
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global hdr
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global curr
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global gFlag
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global sep
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curr = dict()
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parser = argparse.ArgumentParser(description='Program to print zilstats',
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add_help=True,
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formatter_class=RawTextHelpFormatter,
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epilog="\nUsage Examples\n"\
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"Note: Global zilstats is shown by default,"\
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" if none of a|p|d option is not provided\n"\
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"\tzilstat -a\n"\
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'\tzilstat -v\n'\
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'\tzilstat -p tank\n'\
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'\tzilstat -d tank/d1,tank/d2,tank/zv1\n'\
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'\tzilstat -i 1\n'\
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'\tzilstat -s \"***\"\n'\
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'\tzilstat -f zcwc,zimnb,zimsb\n')
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parser.add_argument(
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"-v", "--verbose",
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action="store_true",
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help="List field headers and definitions"
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)
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pool_grp = parser.add_mutually_exclusive_group()
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pool_grp.add_argument(
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"-a", "--all",
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action="store_true",
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dest="all",
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help="Print all dataset stats"
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)
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pool_grp.add_argument(
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"-p", "--pool",
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type=str,
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help="Print stats for all datasets of a speicfied pool"
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)
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pool_grp.add_argument(
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"-d", "--dataset",
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type=str,
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help="Print given dataset(s) (Comma separated)"
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)
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parser.add_argument(
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"-f", "--columns",
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type=str,
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help="Specify specific fields to print (see -v)"
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)
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parser.add_argument(
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"-s", "--separator",
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type=str,
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help="Override default field separator with custom "
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"character or string"
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)
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parser.add_argument(
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"-i", "--interval",
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type=int,
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dest="interval",
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help="Print stats between specified interval"
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" (in seconds)"
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)
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parsed_args = parser.parse_args()
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if parsed_args.verbose:
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detailed_usage()
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if parsed_args.all:
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gFlag = False
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if parsed_args.interval:
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interval = parsed_args.interval
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if parsed_args.pool:
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pool_name = parsed_args.pool
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gFlag = False
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if parsed_args.dataset:
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dataset_name = parsed_args.dataset
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gFlag = False
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if parsed_args.separator:
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sep = parsed_args.separator
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if gFlag:
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hdr = ghdr
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if parsed_args.columns:
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hdr = parsed_args.columns.split(",")
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invalid = []
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for ele in hdr:
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if gFlag and ele not in ghdr:
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invalid.append(ele)
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elif ele not in cols:
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invalid.append(ele)
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if len(invalid) > 0:
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sys.stderr.write("Invalid column definition! -- %s\n" % invalid)
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sys.exit(1)
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if pool_name and dataset_name:
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print ("Error: Can not filter both dataset and pool")
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sys.exit(1)
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def FileCheck(fname):
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try:
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return (open(fname))
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except IOError:
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print ("Unable to open zilstat proc file: " + fname)
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sys.exit(1)
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if sys.platform.startswith('freebsd'):
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# Requires py-sysctl on FreeBSD
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import sysctl
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def kstat_update(pool = None, objid = None):
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global kstat
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kstat = {}
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if not pool:
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file = "kstat.zfs.misc.zil"
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k = [ctl for ctl in sysctl.filter(file) \
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if ctl.type != sysctl.CTLTYPE_NODE]
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kstat_process_str(k, file, "GLOBAL", len(file + "."))
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elif objid:
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file = "kstat.zfs." + pool + ".dataset.objset-" + objid
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k = [ctl for ctl in sysctl.filter(file) if ctl.type \
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!= sysctl.CTLTYPE_NODE]
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kstat_process_str(k, file, objid, len(file + "."))
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else:
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file = "kstat.zfs." + pool + ".dataset"
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zil_start = len(file + ".")
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obj_start = len("kstat.zfs." + pool + ".")
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k = [ctl for ctl in sysctl.filter(file)
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if ctl.type != sysctl.CTLTYPE_NODE]
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for s in k:
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if not s or (s.name.find("zil") == -1 and \
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s.name.find("dataset_name") == -1):
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continue
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name, value = s.name, s.value
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objid = re.findall(r'0x[0-9A-F]+', \
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name[obj_start:], re.I)[0]
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if objid not in kstat:
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kstat[objid] = dict()
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zil_start = len(file + ".objset-" + \
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objid + ".")
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kstat[objid][name[zil_start:]] = value \
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if (name.find("dataset_name")) \
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else int(value)
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def kstat_process_str(k, file, objset = "GLOBAL", zil_start = 0):
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global kstat
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if not k:
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print("Unable to process kstat for: " + file)
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sys.exit(1)
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kstat[objset] = dict()
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for s in k:
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if not s or (s.name.find("zil") == -1 and \
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s.name.find("dataset_name") == -1):
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continue
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name, value = s.name, s.value
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kstat[objset][name[zil_start:]] = value \
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if (name.find("dataset_name")) else int(value)
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elif sys.platform.startswith('linux'):
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def kstat_update(pool = None, objid = None):
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global kstat
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kstat = {}
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if not pool:
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k = [line.strip() for line in \
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FileCheck("/proc/spl/kstat/zfs/zil")]
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kstat_process_str(k, "/proc/spl/kstat/zfs/zil")
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elif objid:
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file = "/proc/spl/kstat/zfs/" + pool + "/objset-" + objid
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k = [line.strip() for line in FileCheck(file)]
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kstat_process_str(k, file, objid)
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else:
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if not os.path.exists(f"/proc/spl/kstat/zfs/{pool}"):
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print("Pool \"" + pool + "\" does not exist, Exitting")
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sys.exit(1)
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objsets = os.listdir(f'/proc/spl/kstat/zfs/{pool}')
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for objid in objsets:
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if objid.find("objset-") == -1:
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continue
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file = "/proc/spl/kstat/zfs/" + pool + "/" + objid
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k = [line.strip() for line in FileCheck(file)]
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kstat_process_str(k, file, objid.replace("objset-", ""))
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def kstat_process_str(k, file, objset = "GLOBAL", zil_start = 0):
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global kstat
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if not k:
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print("Unable to process kstat for: " + file)
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sys.exit(1)
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kstat[objset] = dict()
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for s in k:
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if not s or (s.find("zil") == -1 and \
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s.find("dataset_name") == -1):
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continue
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name, unused, value = s.split()
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kstat[objset][name] = value \
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if (name == "dataset_name") else int(value)
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def zil_process_kstat():
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global curr, pool_name, dataset_name, dsFlag, ds_pairs
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curr.clear()
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if gFlag == True:
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kstat_update()
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zil_build_dict()
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else:
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if pool_name:
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kstat_update(pool_name)
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zil_build_dict(pool_name)
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elif dataset_name:
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if dsFlag == False:
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dsFlag = True
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datasets = dataset_name.split(',')
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ds_pairs = defaultdict(list)
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for ds in datasets:
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try:
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objid = subprocess.check_output(['zfs',
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'list', '-Hpo', 'objsetid', ds], \
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stderr=subprocess.DEVNULL) \
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.decode('utf-8').strip()
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except subprocess.CalledProcessError as e:
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print("Command: \"zfs list -Hpo objset "\
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+ str(ds) + "\" failed with error code:"\
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+ str(e.returncode))
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print("Please make sure that dataset \""\
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+ str(ds) + "\" exists")
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sys.exit(1)
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if not objid:
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continue
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ds_pairs[ds.split('/')[0]]. \
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append(hex(int(objid)))
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for pool, objids in ds_pairs.items():
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for objid in objids:
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kstat_update(pool, objid)
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zil_build_dict(pool)
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else:
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try:
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pools = subprocess.check_output(['zpool', 'list', '-Hpo',\
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'name']).decode('utf-8').split()
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except subprocess.CalledProcessError as e:
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print("Command: \"zpool list -Hpo name\" failed with error"\
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"code: " + str(e.returncode))
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sys.exit(1)
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for pool in pools:
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kstat_update(pool)
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zil_build_dict(pool)
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def calculate_diff():
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global curr, diff
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prev = copy.deepcopy(curr)
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zil_process_kstat()
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diff = copy.deepcopy(curr)
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for pool in curr:
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for objset in curr[pool]:
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for col in hdr:
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if col not in ['time', 'pool', 'ds', 'obj']:
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key = cols[col][2]
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# If prev is NULL, this is the
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# first time we are here
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if not prev:
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diff[pool][objset][key] = 0
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else:
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diff[pool][objset][key] \
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= curr[pool][objset][key] \
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- prev[pool][objset][key]
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def zil_build_dict(pool = "GLOBAL"):
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global kstat
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for objset in kstat:
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for key in kstat[objset]:
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val = kstat[objset][key]
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if pool not in curr:
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curr[pool] = dict()
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if objset not in curr[pool]:
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curr[pool][objset] = dict()
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curr[pool][objset][key] = val
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curr[pool][objset]["pool"] = pool
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curr[pool][objset]["objset"] = objset
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curr[pool][objset]["time"] = time.strftime("%H:%M:%S", \
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time.localtime())
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def sign_handler_epipe(sig, frame):
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print("Caught EPIPE signal: " + str(frame))
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print("Exitting...")
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sys.exit(0)
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def main():
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global interval
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global curr
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hprint = False
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||||
init()
|
||||
signal.signal(signal.SIGINT, signal.SIG_DFL)
|
||||
signal.signal(signal.SIGPIPE, sign_handler_epipe)
|
||||
|
||||
if interval > 0:
|
||||
while True:
|
||||
calculate_diff()
|
||||
if not diff:
|
||||
print ("Error: No stats to show")
|
||||
sys.exit(0)
|
||||
if hprint == False:
|
||||
print_header()
|
||||
hprint = True
|
||||
print_dict(diff)
|
||||
time.sleep(interval)
|
||||
else:
|
||||
zil_process_kstat()
|
||||
if not curr:
|
||||
print ("Error: No stats to show")
|
||||
sys.exit(0)
|
||||
print_header()
|
||||
print_dict(curr)
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
@ -409,7 +409,8 @@ make install DESTDIR=%{?buildroot}
|
||||
find %{?buildroot}%{_libdir} -name '*.la' -exec rm -f {} \;
|
||||
%if 0%{!?__brp_mangle_shebangs:1}
|
||||
find %{?buildroot}%{_bindir} \
|
||||
\( -name arc_summary -or -name arcstat -or -name dbufstat \) \
|
||||
\( -name arc_summary -or -name arcstat -or -name dbufstat \
|
||||
-or -name zilstat \) \
|
||||
-exec %{__sed} -i 's|^#!.*|#!%{__python}|' {} \;
|
||||
find %{?buildroot}%{_datadir} \
|
||||
\( -name test-runner.py -or -name zts-report.py \) \
|
||||
@ -487,6 +488,7 @@ systemctl --system daemon-reload >/dev/null || true
|
||||
%{_bindir}/arc_summary
|
||||
%{_bindir}/arcstat
|
||||
%{_bindir}/dbufstat
|
||||
%{_bindir}/zilstat
|
||||
# Man pages
|
||||
%{_mandir}/man1/*
|
||||
%{_mandir}/man4/*
|
||||
|
@ -551,7 +551,8 @@ tests = ['zdb_001_neg', 'zfs_001_neg', 'zfs_allow_001_neg',
|
||||
'zpool_offline_001_neg', 'zpool_online_001_neg', 'zpool_remove_001_neg',
|
||||
'zpool_replace_001_neg', 'zpool_scrub_001_neg', 'zpool_set_001_neg',
|
||||
'zpool_status_001_neg', 'zpool_upgrade_001_neg', 'arcstat_001_pos',
|
||||
'arc_summary_001_pos', 'arc_summary_002_neg', 'zpool_wait_privilege']
|
||||
'arc_summary_001_pos', 'arc_summary_002_neg', 'zpool_wait_privilege',
|
||||
'zilstat_001_pos']
|
||||
user =
|
||||
tags = ['functional', 'cli_user', 'misc']
|
||||
|
||||
|
@ -396,7 +396,8 @@ tests = ['zdb_001_neg', 'zfs_001_neg', 'zfs_allow_001_neg',
|
||||
'zpool_history_001_neg', 'zpool_offline_001_neg', 'zpool_online_001_neg',
|
||||
'zpool_remove_001_neg', 'zpool_scrub_001_neg', 'zpool_set_001_neg',
|
||||
'zpool_status_001_neg', 'zpool_upgrade_001_neg', 'arcstat_001_pos',
|
||||
'arc_summary_001_pos', 'arc_summary_002_neg', 'zpool_wait_privilege']
|
||||
'arc_summary_001_pos', 'arc_summary_002_neg', 'zpool_wait_privilege',
|
||||
'zilstat_001_pos']
|
||||
user =
|
||||
tags = ['functional', 'cli_user', 'misc']
|
||||
|
||||
|
@ -169,6 +169,7 @@ export ZFS_FILES='zdb
|
||||
raidz_test
|
||||
arc_summary
|
||||
arcstat
|
||||
zilstat
|
||||
dbufstat
|
||||
mount.zfs
|
||||
zed
|
||||
|
@ -1230,6 +1230,7 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
|
||||
functional/cli_user/misc/arcstat_001_pos.ksh \
|
||||
functional/cli_user/misc/arc_summary_001_pos.ksh \
|
||||
functional/cli_user/misc/arc_summary_002_neg.ksh \
|
||||
functional/cli_user/misc/zilstat_001_pos.ksh \
|
||||
functional/cli_user/misc/cleanup.ksh \
|
||||
functional/cli_user/misc/setup.ksh \
|
||||
functional/cli_user/misc/zdb_001_neg.ksh \
|
||||
|
37
tests/zfs-tests/tests/functional/cli_user/misc/zilstat_001_pos.ksh
Executable file
37
tests/zfs-tests/tests/functional/cli_user/misc/zilstat_001_pos.ksh
Executable file
@ -0,0 +1,37 @@
|
||||
#!/bin/ksh -p
|
||||
#
|
||||
# CDDL HEADER START
|
||||
#
|
||||
# The contents of this file are subject to the terms of the
|
||||
# Common Development and Distribution License (the "License").
|
||||
# You may not use this file except in compliance with the License.
|
||||
#
|
||||
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
# or https://opensource.org/licenses/CDDL-1.0.
|
||||
# See the License for the specific language governing permissions
|
||||
# and limitations under the License.
|
||||
#
|
||||
# When distributing Covered Code, include this CDDL HEADER in each
|
||||
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
# If applicable, add the following below this CDDL HEADER, with the
|
||||
# fields enclosed by brackets "[]" replaced with your own identifying
|
||||
# information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
#
|
||||
# CDDL HEADER END
|
||||
#
|
||||
|
||||
. $STF_SUITE/include/libtest.shlib
|
||||
|
||||
is_freebsd && ! python3 -c 'import sysctl' 2>/dev/null && log_unsupported "python3 sysctl module missing"
|
||||
|
||||
set -A args "" "-s \",\"" "-v" \
|
||||
"-f time,zcwc,zimnb,zimsb"
|
||||
|
||||
log_assert "zilstat generates output and doesn't return an error code"
|
||||
|
||||
typeset -i i=0
|
||||
while [[ $i -lt ${#args[*]} ]]; do
|
||||
log_must eval "zilstat ${args[i]} > /dev/null"
|
||||
((i = i + 1))
|
||||
done
|
||||
log_pass "zilstat generates output and doesn't return an error code"
|
Loading…
Reference in New Issue
Block a user