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4f07282786
Duplicate io and checksum ereport events can misrepresent that things are worse than they seem. Ideally the zpool events and the corresponding vdev stat error counts in a zpool status should be for unique errors -- not the same error being counted over and over. This can be demonstrated in a simple example. With a single bad block in a datafile and just 5 reads of the file we end up with a degraded vdev, even though there is only one unique error in the pool. The proposed solution to the above issue, is to eliminate duplicates when posting events and when updating vdev error stats. We now save recent error events of interest when posting events so that we can easily check for duplicates when posting an error. Reviewed by: Brad Lewis <brad.lewis@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Don Brady <don.brady@delphix.com> Closes #10861
127 lines
5.5 KiB
C
127 lines
5.5 KiB
C
/*
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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 (the "License").
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* You may not use this file except in compliance 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 http://www.opensolaris.org/os/licensing.
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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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* CDDL HEADER END
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*/
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/*
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/*
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* Copyright (c) 2020 by Delphix. All rights reserved.
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*/
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#ifndef _SYS_FM_FS_ZFS_H
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#define _SYS_FM_FS_ZFS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ZFS_ERROR_CLASS "fs.zfs"
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#define FM_EREPORT_ZFS_CHECKSUM "checksum"
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#define FM_EREPORT_ZFS_AUTHENTICATION "authentication"
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#define FM_EREPORT_ZFS_IO "io"
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#define FM_EREPORT_ZFS_DATA "data"
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#define FM_EREPORT_ZFS_DELAY "delay"
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#define FM_EREPORT_ZFS_DEADMAN "deadman"
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#define FM_EREPORT_ZFS_POOL "zpool"
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#define FM_EREPORT_ZFS_DEVICE_UNKNOWN "vdev.unknown"
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#define FM_EREPORT_ZFS_DEVICE_OPEN_FAILED "vdev.open_failed"
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#define FM_EREPORT_ZFS_DEVICE_CORRUPT_DATA "vdev.corrupt_data"
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#define FM_EREPORT_ZFS_DEVICE_NO_REPLICAS "vdev.no_replicas"
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#define FM_EREPORT_ZFS_DEVICE_BAD_GUID_SUM "vdev.bad_guid_sum"
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#define FM_EREPORT_ZFS_DEVICE_TOO_SMALL "vdev.too_small"
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#define FM_EREPORT_ZFS_DEVICE_BAD_LABEL "vdev.bad_label"
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#define FM_EREPORT_ZFS_DEVICE_BAD_ASHIFT "vdev.bad_ashift"
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#define FM_EREPORT_ZFS_IO_FAILURE "io_failure"
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#define FM_EREPORT_ZFS_PROBE_FAILURE "probe_failure"
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#define FM_EREPORT_ZFS_LOG_REPLAY "log_replay"
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#define FM_EREPORT_ZFS_CONFIG_CACHE_WRITE "config_cache_write"
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#define FM_EREPORT_PAYLOAD_ZFS_POOL "pool"
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#define FM_EREPORT_PAYLOAD_ZFS_POOL_FAILMODE "pool_failmode"
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#define FM_EREPORT_PAYLOAD_ZFS_POOL_GUID "pool_guid"
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#define FM_EREPORT_PAYLOAD_ZFS_POOL_CONTEXT "pool_context"
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#define FM_EREPORT_PAYLOAD_ZFS_POOL_STATE "pool_state"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID "vdev_guid"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE "vdev_type"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_PATH "vdev_path"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_PHYSPATH "vdev_physpath"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_ENC_SYSFS_PATH "vdev_enc_sysfs_path"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_DEVID "vdev_devid"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_FRU "vdev_fru"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE "vdev_state"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_LASTSTATE "vdev_laststate"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_ASHIFT "vdev_ashift"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_COMP_TS "vdev_complete_ts"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_DELTA_TS "vdev_delta_ts"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_SPARE_PATHS "vdev_spare_paths"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_SPARE_GUIDS "vdev_spare_guids"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_READ_ERRORS "vdev_read_errors"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_WRITE_ERRORS "vdev_write_errors"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_CKSUM_ERRORS "vdev_cksum_errors"
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#define FM_EREPORT_PAYLOAD_ZFS_VDEV_DELAYS "vdev_delays"
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#define FM_EREPORT_PAYLOAD_ZFS_PARENT_GUID "parent_guid"
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#define FM_EREPORT_PAYLOAD_ZFS_PARENT_TYPE "parent_type"
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#define FM_EREPORT_PAYLOAD_ZFS_PARENT_PATH "parent_path"
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#define FM_EREPORT_PAYLOAD_ZFS_PARENT_DEVID "parent_devid"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_OBJSET "zio_objset"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_OBJECT "zio_object"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_LEVEL "zio_level"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_BLKID "zio_blkid"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_ERR "zio_err"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_OFFSET "zio_offset"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_SIZE "zio_size"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_FLAGS "zio_flags"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_STAGE "zio_stage"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_PRIORITY "zio_priority"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_PIPELINE "zio_pipeline"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_DELAY "zio_delay"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_TIMESTAMP "zio_timestamp"
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#define FM_EREPORT_PAYLOAD_ZFS_ZIO_DELTA "zio_delta"
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#define FM_EREPORT_PAYLOAD_ZFS_PREV_STATE "prev_state"
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#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_EXPECTED "cksum_expected"
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#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_ACTUAL "cksum_actual"
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#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_ALGO "cksum_algorithm"
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#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_BYTESWAP "cksum_byteswap"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_OFFSET_RANGES "bad_ranges"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_MIN_GAP "bad_ranges_min_gap"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_SETS "bad_range_sets"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_CLEARS "bad_range_clears"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_SET_BITS "bad_set_bits"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_BITS "bad_cleared_bits"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_SET_HISTOGRAM "bad_set_histogram"
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#define FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_HISTOGRAM "bad_cleared_histogram"
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#define FM_EREPORT_FAILMODE_WAIT "wait"
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#define FM_EREPORT_FAILMODE_CONTINUE "continue"
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#define FM_EREPORT_FAILMODE_PANIC "panic"
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#define FM_RESOURCE_REMOVED "removed"
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#define FM_RESOURCE_AUTOREPLACE "autoreplace"
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#define FM_RESOURCE_STATECHANGE "statechange"
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_FM_FS_ZFS_H */
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