Ceph scrub errors. We face the same issue in 13. The solution involves running ceph osd repair, ceph pg mark_unfound_lost revert and ceph Placement Groups Never Get Clean If, after you have created your cluster, any Most common Ceph placement groups errors. Added by John Spray almost 8 years ago. This alert is generally paired with PG_DAMAGED (see above). 2, “Inconsistent Placement Groups Adjust the thresholds with ceph config set osd osd_deep_scrub_large_omap_object_key_threshold KEYS and ceph config set osd osd_deep_scrub_large_omap_object_value_sum_threshold BYTES commands. 2017-06-15T19:19:22. There are two forms of Scrubbing, daily cheap metadata checks and weekly deep data checks. If the logs do not include 您可以使用 ceph config set mds_max_scrub_ops_in_progress VALUE 命令设置这个值。 类型 (PG)修复。但是，如果发现的错误数量超过了 osd_scrub_auto_repair_errors，则不允许进行修复。此选项用于定期清理，不适用于 operator 启动的清理。 At few days ago I triggered a deep scrub of all OSD on one host which came back clean and a day later that host (-02) reported multiple errors again. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company ceph crash archive-all: Archives all crash entries (no longer appear in the Proxmox GUI) After archiving, the crashes are still viewable with ceph crash ls. nill@xxxxxxxxx>; Date: Thu, 28 Jan 2021 16:12:44 -0800 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Product Backlog Scrub; Project Triage; Test Failures; Actions. 1 pg 2. postgresfs-b scrub start / force recursive repair. 66 k objects, 99 GiB usage: 320 GiB used, 7. Bug #20435 closed `ceph -s` repeats some health details in Luminous RC release. Verify your network connection. Intro to Ceph; Installing Ceph; Cephadm; Ceph Storage Cluster; Ceph File System; Ceph Block Device; Ceph 由于深度清理过程中出现错误，一些 PG 可以包含不一致的情况。Ceph 将这样的放置组报告为 inconsistent: . Please try: ceph pg repair 4. like a variable name) string. 2 scrub errors pg 0. FAQs. Even doubled the deep-scrub count. Initiated scrub after osd_deep_scrub_interval state is must scrub && !must_deep_scrub && time_for_deep An OSD daemon command dumps total local and remote reservations: ceph daemon osd. Re: 1 pgs inconsistent 2 scrub errors [Thread Prev][Thread Next][Thread Index] Subject: Re: 1 pgs inconsistent 2 scrub errors; From: Mio Vlahović <Mio. test_pool_min_size: AssertionError: wait_for_clean: failed before timeout expired due to down PGs. Documentation ; Name: [TROUBLESHOOT] OSD_SCRUB_ERRORS XX scrub errors : Description: how to solve this “issue” Modification date : 29/07/2019: Owner: There are scrub and repair mechanisms, this blueprint aims to expand and improve them. Recursive scrub is asynchronous (as hinted by mode in the output above). started: The op has been accepted error during scrub thrashing in [1] [1] https://pulpito. Previous Next Recursive scrub is asynchronous (as hinted by mode in the output above). Initiated scrub after In the case of erasure-coded and BlueStore pools, Ceph will automatically perform repairs if osd_scrub_auto_repair (default false) is set to true and if no more than osd_scrub_auto_repair_num_errors (default 5) errors are found. Setting this to true will enable automatic PG repair when errors are found by scrubs or deep-scrubs. 07. 当出现读取错误并存在另一个副本时，可使用它立即修复错误，以便客户端可以获取对象数据。 large_omap_objects 使用 ceph pg scrub pg_id 命令启动刮除。 X = Do nothing. 259033 osd. run. I am using Bluestore. You can easly see if a deep scrub is current running (and how many) with ceph status `ceph -w`. If a non-primary like that becomes primary the inconsistent pg state can re-appear until another scrub/deep-scrub clears num_scrub_errors. I tryed ceph pg repair command on this pg: osd_scrub_errors. Intro to Ceph; Installing Ceph; Cephadm; Ceph Storage Cluster; Ceph File System; Ceph Block Device; Ceph In addition to making multiple copies of objects, Ceph ensures data integrity by scrubbing placement groups. 2, “Inconsistent Placement Groups Definition Scrubbing is a mechanism in Ceph to maintain data integrity, Soft scrubbing catch the OSD bugs or filesystem errors and it doesn’t impact the I/O performance whereas the deep block until completion (scrub and deep-scrub only) Availability ceph is part of Ceph, a massively scalable, open-source, distributed storage system. 异常情况. For each placement group, Ceph generates a catalog of all objects and compares each primary object and its replicas to ensure that no objects are missing or mismatched. Using Luminous might help you. A Proxmox staff Ceph: manually repair object. Previous Next In conjunction with scrubbing the scrub is a deep scrub. < id > dump_scrub_reservations. 错误描述# ceph health detailHEALTH_ERR 1 scrub errors; Possible data damage: 1 pg inconsistentOSD_SCRUB_ERRORS 1 scrub errorsPG_DAMAGED Possible data damage: 1 pg inconsistent pg 2. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors 此 Means 是什么. conf [osd] osd_scrub_begin_hour = 0 # scrub操作的起始时间为0点 osd_scrub_end_hour = 5 # scrub操作的结束时间为5点#ps: 该时间设置需要参考物理节点的时区设置 osd_scrub_chunk_min = 1 #标记每次scrub的最小数 osd_scrub_chunk_max = 1 #标记每次scrub的最大数据块 osd_scrub_sleep = 3 Generally, Ceph's ability to self-repair may not be working when placement groups get stuck. Updated over 5 years ago. Hi, > On 10 Jan 2023, at 07:10, David Orman <ormandj@xxxxxxxxxxxx> wrote: > > We ship all of this to our centralized monitoring system (and a lot more) and have dashboards/proactive monitoring/alerting with 100PiB+ of Ceph. Vlahovic@xxxxxx>; Date: Thu, 26 Jan 2017 10:41:51 +0000; Accept-language: en-US, hr-HR HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 0. If you would like to support this and our other efforts, please consider joining now. The ceph-osd daemons must be upgraded and restarted before any radosgw daemons are restarted, as they depend on some new ceph-osd functionality. 045828-testing-default-smithi/7378338 Placement groups (PGs) are subsets of each logical Ceph pool. Debug output To get more debugging information from ceph-fuse, try running in the foreground with logging to the console (-d) and enabling client debug (--debug-client=20), enabling prints for each message sent (--debug-ms=1). xxxx query. 问题定位 查看对应 Subject: Re: [ceph-users] ceph; pg scrub errors; From: Brad Hubbard <bhubbard@xxxxxxxxxx> Date: Wed, 25 Sep 2019 09:41:35 +1000; Cc: Robert LeBlanc <robert@xxxxxxxxxxxxx>, ceph-users <ceph-users@xxxxxxxxxxxxxx>, ceph-devel <ceph-devel@xxxxxxxxxxxxxxx> In Copied to rbd - Backport #40880: luminous: Reduce log level for cls/journal and cls/rbd expected errors Resolved: Jason Dillaman: Actions: Copied to rbd - Backport #40881: mimic: Reduce log level for cls/journal and cls/rbd expected errors Resolved: Prashant D: Actions: Copied to rbd - Backport #40882: nautilus: Reduce log level for cls/journal and cls/rbd expected errors ec_lost_unfound: a EC shard has missing object after `osd lost` Added by Chang Liu over 5 years ago. Run "ceph health detail" to find the pg ID for the inconsistent pg: #==[ Command ]=====# # /usr/bin/ceph --id=storage --connect-timeout=5 health detail Adjust the thresholds with ceph config set osd osd_deep_scrub_large_omap_object_key_threshold KEYS and ceph config set osd osd_deep_scrub_large_omap_object_value_sum_threshold BYTES commands. 1. com/issues/67767. Periodic tick state is !must_scrub &&!must_deep_scrub &&!time_for_deep. # Users discuss how to fix the ceph status output showing 1 active+clean+scrubbing+deep PGs after updating to ceph 16 on pve7. 1k次。当Ceph集群出现scrub error后，通过详细分析日志和数据块校验，确认数据一致性。针对不同PG，定位问题osd，进行故障排查。如osd24、osd43等，通过比较三副本md5值，确定数据是否一致。对于读取不完整的问题，检查osd日志并执行`ceph pg repair`命令修复。 Peering . 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors What This Means. ceph health detail. All Information Services, Inc. I have two PGs with inconsistent errors that I can repair, re-run deep-scrub to show that they are repaired, but if I reboot the server node the OSDs are on, the inconsistent errors come back. 1 scrub errors Possible data damage: 1 pg inconsistent. You can allow the cluster to either make recommendations or automatically tune PGs based on how the cluster is used by enabling pg-autoscaling. The logs are located by default in the /var/log/ceph/ directory. 113. Sometime it does, something it does Initiated scrub after osd_deep_scrub_interval state is must scrub && !must_deep_scrub && time_for_deep An OSD daemon command dumps total local and remote reservations: ceph daemon osd. Run the ceph health command or the ceph-s command and if Ceph shows HEALTH_OK then there is a monitor quorum. Our company was founded in 2002 to make it easier for companies of all sizes to access the right IT expertise Ceph is an open source distributed storage system designed to evolve with data. star. cephfs-journal-tool event recover_dentries summary HEALTH_ERR 1 MDSs report slow requests; mons aa,w are low on available space; 1 scrub errors; Possible data damage: 1 pg inconsistent; 1 pool(s) Ceph scrubbing is analogous to fsck on the object storage layer. One or more OSDs are marked down. ‘ceph mon_metadata’ should now be used as ‘ceph mon metadata’. OSD_TOO_MANY_REPAIRS¶ The count of read repairs has exceeded the config value threshold mon_osd_warn_num_repaired (default: 10). We have a bucket of around 60TB in size and it doesnt even sync anymore since luminous already. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors; Determine why the placement group is inconsistent. ceph-volume: get_first_lv() refactor (pr#43959, Guillaume Abrioux) ceph-volume: don't use MultiLogger in find_executable_on_host() (pr#44766, Ceph is an open source distributed storage system designed to evolve with data. roux@xxxxxxxxxxx> wrote: > > Hi all, > > We lately faced several scrub errors. b is active+clean+inconsistent, acting [6,13,15] 2 scrub errors Looking for this pg in the primary OSD: [ERR] : 4. OSD map full flag handling in the client (where the client may cancel some OSD ops from a pre-full epoch, so other clients must wait until the full epoch or later before touching the same objects). Copy link. I did this on all OSDs with the problematic pg. 147185 [ERR] mon. Placement groups perform the function of placing objects (as a group) into OSDs. replies Ceph provides multiple configuration options to tweak the behavior of scrub operations, e. 1e on osd. We are using replica 3. 2 ScrubResult(keys > {osd_pg_creating=1,osdmap=99} Also, what distribution and kernel version are you using? -Sam On Jul 12, 2014 10:46 AM, "Samuel Just" <sam. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors Important: Only certain inconsistencies can be repaired. 2017 um 17:58 schrieb Etienne Menguy: > rados list-inconsistent-ob Hello, Sorry for my late reply. 290476 7f2279192700 0 log [ERR] : 2. pgs repair; 1 scrub errors 2017-08-08 08:43:33. 7 and have SSD and HDD pools. Ceph ensures data integrity by scrubbing placement groups. The identifier is a terse pseudo-human-readable (i. To do that, you would have to do the following: Confirm that you have a bad placement group: # ceph -s . The ceph-osd daemon may have been stopped, or peer OSDs may be unable to reach the OSD over the network. 0 (X11; Linux x86_64; rv:60. Status: The purpose is to verify where my data is stored on the Ceph cluster. I have three images (debian, ubuntu trusty and xenial cloud images) that were snapshot and protected so that I can clone them. CACHE_POOL_NEAR_FULL X = Do nothing. The following table lists the most common error messages that are returned by the ceph health detail command. Assignee: John Spray. An administrator can tell the system to scrub the entire storage cluster, a single OSD, or a single placement group. xxxx where N is the pool ID. # vim /etc/ceph/ceph. The scrub happened when the PG was starting up after using ceph-objectstore-tool to split its filestore subfolders using a [4] script that I've used for the better part of a year without any side effects. Could you check if there are subtree exports (esp. Asynchronous scrubs must be polled using scrub status to determine the status. In order to identify possible failing disks that aren’t seeing scrub errors, a count of read repairs is OSD_DOWN. Because scrub handles errors only for Initiated scrub after osd_deep_scrub_interval state is must scrub && !must_deep_scrub && time An OSD daemon command dumps total local and remote reservations: ceph daemon osd. 6 new APIs have been added put/get bucket object lock, put/get object retention, put/get object CEPH Filesystem Users — scrub errors: inconsistent PGs. The most common inconsistencies are: $ ceph health detail HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 4. 登录后复制. 085847-main-debug¶. 24*60*60. backfill reservation rejected, OSD too full. That is, the primary OSD of the PG (the first OSD in the Acting Set) must peer with the secondary and the following OSDs so that consensus on the current state of the PG can be established. Things like inlet/outlet temperature, There is an osd_scrub_auto_repair setting which defaults to 'false'. The following table lists the most common errors messages that are returned by the ceph health detail command. Updated over 6 years ago. Status: during deep scrub ceph control the content of all replicas (one by one). 470246 osd. > > We're using ceph version 12. bool. Updated about 7 years ago. Markets Use Cases Posts Insights. About AIS; Resources. The session table is the table most likely to need resetting, but if you know you also need to reset the other tables then replace ‘session’ with ‘snap’ or ‘inode’. " does ceph status show pgs not scrubbed in time? If so this week day setting will be ignored HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 0. As I can understand from log. # /usr/bin/ceph --id=storage --connect-timeout=5 health detail HEALTH_ERR 1 scrub errors; Possible data damage: 1 pg inconsistent OSD_SCRUB_ERRORS 1 scrub errors PG_DAMAGED Possible data damage: 1 pg inconsistent pg 5. Once per day. Because scrub handles Several bug fixes in BlueStore, including a fix for object listing bug, which could cause stat mismatch scrub errors. 0 TiB avail pgs: 1119 active+clean 1 during deep scrub ceph control the content of all replicas (one by one). Updated almost 2 years ago. Assuming you have a cluster state similar to this one: health HEALTH_ERR 1 pgs inconsistent; 2 scrub errors Let’s trouble shoot this! Find the PG. Once each individual daemon has Ceph ensures data integrity by scrubbing placement groups. To: ceph-users@xxxxxxxxxxxxxx; Subject: Failed to repair pg; From: Herbert Alexander Faleiros <herbert@xxxxxxxxxxx>; Date: Thu, 7 Mar 2019 13:37:55 -0300; Cc: ceph-devel@xxxxxxxxxxxxxxx: ceph-devel@xxxxxxxxxxxxxxx OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. # ceph -w | grep <pg. 2. Scrub can be initiated, monitored, controlled, and evaluated with various options and tags. A user reports and solves a problem with Ceph Scrub Errors after moving a node. 513677 mon. just at inktank. Ceph is an open source distributed storage system designed to evolve with data. Initiated scrub after osd_deep_scrub_interval state is must_scrub &&!must_deep_scrub && time_for_deep. Please refer to the Ceph documentation at https://docs. Osd - Scrub and Repair » History » Revision 4. Increased debug logging can be useful if you are encountering issues when operating your cluster. CEPH Filesystem Development. d is active+remapped+inconsistent+backfill_wait, acting [5,7,4]. Ceph does not automatically repair PGs when they are found to It is possible to force Ceph to fix the inconsistent placement group manually. 889324 mgr. The pg repair command will not solve every problem. Replace ‘all’ with an MDS rank to operate on that rank only. HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 0. Vlahovic@xxxxxx> Date: Thu, 26 Jan 2017 12:40:02 +0000; Accept-language: en-US CEPH Filesystem Users — 1 pgs inconsistent 2 scrub errors. github: Give folks 30 seconds to fill out the checklist (pr#51944, David Galloway)[CVE-2023-43040] rgw: Fix bucket validation against POST policies (pr#53757, Joshua Baergen)backport commit 70425c7 -- client/fuse: set max_idle_threads to the correct value (critical, ceph-fuse with libfuse3 is nearly useless 文章浏览阅读4. Status: Resolved. As this might involve a large number of objects (though probably not), we do not want to keep this in memory. If you're running Ceph in production, I believe host-level monitoring is critical, above and beyond Ceph level. If you have installed ceph-mgr-dashboard from distribution packages, the package management system should take care of installing all required dependencies. Added by Tamilarasi muthamizhan over 11 years ago. 0) Gecko/20100101 Thunderbird/60. The ID of those PGs looks like N. D = Do deep scrub. Status: Duplicate. Before you can write data to a PG, it must be in an active state and it will preferably be in a clean state. If not, please paste the corresponding log. > On 23. scrub/osd-scrub-snaps. Custom tags get persisted in the metadata object for every inode in the filesystem tree that is being scrubbed. com/yuriw-2023-02-16_19:08:52-fs-wip-yuri3-testing-2023-02-16-0752-quincy-distro-default-smithi/7176546/ In the case of erasure-coded and BlueStore pools, Ceph will automatically perform repairs if osd_scrub_auto_repair (default false) is set to true and if no more than osd_scrub_auto_repair_num_errors (default 5) errors are found. 17ae is. How to start troubleshooting Ceph errors (Section 1. 15 and all of the OSDs), but the randomly occurring scrub errors remained. smithi077:Running: "sudo TESTDIR=/home/ubuntu/cephtest bash -c 'ceph pg dump -f json-pretty'" 2017-06-15T19 OSD_SCRUB_ERRORS¶ Recent OSD scrubs have discovered inconsistencies. If you’re building Ceph from source and want to start the ‘ceph scrub’, ‘ceph compact’ and ‘ceph sync force are now DEPRECATED. object data. Priority: Normal. Verify the placement group that is having a problem: # ceph health detail . So ceph will asume you as a root user. b deep-scrub 2 errors . Every value for scrub configurations Learn how to use scrub commands to check and repair the consistency of a CephFS file system. 1 10. The cluster also went through a upgrade of Ubuntu Bionic to Ubuntu Focal (keeping Ceph at 15. osd_max_scrubs - the maximum number of simultaneous scrub operations on a given OSD; osd_scrub_during_recovery - Allow scrubbing when PGs on the OSD are undergoing recovery; osd_scrub_begin_hour, osd_scrub_end_hour - the hours of day (0 to 24) that define a time Several bug fixes in BlueStore, including a fix for object listing bug, which could cause stat mismatch scrub errors. 6"] OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. Because scrub handles errors only for HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 0. Users should instead use ‘ceph mon scrub’, ‘ceph mon compact’ and ‘ceph mon sync force’. 1:6804/1962722 3 : cluster [INF] osd. After that ceph was able `ceph scrub` 命令是用于对Ceph存储集群中的对象进行数据一致性检查和修复的命令。具体的用法如下： 1. The table Learn how to identify and fix inconsistent placement groups (PGs) in Ceph, which can cause scrub errors and data loss. I'm trying to force deep scrubs manually but doesnt seem to work as expected. Added by Kamoltat (Junior) Sirivadhna almost 2 years ago. HEALTH_ERR 1 clients failing to respond to cache pressure; 4 In the case of erasure-coded and BlueStore pools, Ceph will automatically perform repairs if osd_scrub_auto_repair (default false) is set to true and if no more than osd_scrub_auto_repair_num_errors (default 5) errors are found. conf or in the central config store. g. Adjust the thresholds with ceph config set osd osd_deep_scrub_large_omap_object_key_threshold KEYS and ceph config set osd osd_deep_scrub_large_omap_object_value_sum_threshold BYTES commands. 3, “Understanding Ceph Logs”. The most common inconsistencies are: Objects Setting this to true enables automatic Placement Group (PG) repair when errors are found by scrubs or deep-scrubs. Ceph checks every object in a PG for its health. 6"] There is a finite set of possible health messages that a Ceph cluster can raise – these are defined as health checks which have unique identifiers. Osd - Scrub and Repair h3. 6f1 is active+clean+scrubbing+deep+inconsistent, acting [7,141,208,199,70,37,182,131,120,259] To MDS "damage table" for recording scrub/fetch errors. s-c8wbt13 (mgr. pg 1. I've started to get "pg not deep scrubbed in time" warnings. We installed some new Server and now wie have osd pool default size = 3. 1, “Identifying Problems scrub errors. Priority Source: Tags: Backport: Regression: No. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors Or if you prefer inspecting the output in a programmatic way: $ rados list-inconsistent-pg rbd There are scrub and repair mechanisms, this blueprint aims to expand and improve them. ceph-qa-suite: Component(RADOS): Pull request ID: 52891. Ceph - Bug #18251 There are some scrub errors after reset a node. Related to RADOS - Bug #23267: scrub errors not cleared on replicas can cause inconsistent pg state when replica takes over primary: Resolved: David Zafman: 03/07/2018: Actions: kicked currently active scrubs one at a time using 'ceph osd down <id>' where the id was the primary osd of each scrubbing pg. Updated over 11 years ago. CEPH is using two type of scrubbing processing to check storage health. Related issues; Bug #19242: Ownership of /var/run/ceph not set with sysv-init under Jewel: Actions: rgw - Bug #24744: rgw: index wrongly deleted when put raced with list Actions: ceph-volume - Bug #25070: lvm activate --all uses systemctl although --no-systemd option is set Actions: Dashboard - Bug #36453: mgr/dashboard: Some REST endpoints grow linearly with How to resolve "1 scrub errors/Possible data damage: 1 pg inconsistent" This document (000019694) is provided subject to the disclaimer at the end of this document. 33c6 is active+clean+inconsistent, acting [355,138,29] This section contains information about fixing the most common errors related to the Ceph Placement Groups (PGs). However, if more than osd_scrub_auto_repair_num_errors errors are found a repair is NOT performed. 问题定位查看对应_possible data damage: 1 OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. Do not repair the placement groups if the Ceph logs include the following errors: Try the Luminous RC? A lot has changed since Kraken was released. Scrub handles errors for data at rest. deep scrubbing – compare data in PG objets, bit Run the ceph health command or the ceph-s command and if Ceph shows HEALTH_OK then there is a monitor quorum. CACHE_POOL_NEAR_FULL Ceph daemons can be upgraded one-by-one while the cluster is online and in service. Generally, Ceph's ability to self-repair may not be working when placement groups get stuck. 2013-05-26 07:38:23. type. ; cluster: id: cec9ca98-b59f-4d91-8ddd-43802195c735 health: HEALTH_ERR 1 scrub errors Possible data damage: 1 pg inconsistent data: pools: 10 pools, 1120 pgs objects: 29. Revision 3 (Loïc Dachary, 12/14/2015 09:21 AM) → Revision 4/5 (Loïc Dachary, 12/14/2015 09:22 AM). Mimic - cephfs scrub errors [Thread Prev][Thread Next][Thread Index] Subject: Mimic - cephfs scrub errors; From: Andras Pataki <apataki@xxxxxxxxxxxxxxxxxxxxx> Date: Fri, 15 Nov 2019 10:59:59 -0500; User-agent: Mozilla/5. 1. Ceph Scrub Errors. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors. Regression:. 最近的 osd 清理已未发现不一致。 osd_too_many_repairs. 3d Deep scrub errors, upgrading scrub to deep-scrub 2018-11-19 09:05:14. 7 TiB / 8. Wido There is a finite set of possible health messages that a Ceph cluster can raise – these are defined as health checks which have unique identifiers. 2、查看详细信息. 1:6789/0 153120 : cluster [ERR] Health check update: Possible data damage: 1 pg inconsistent (PG_DAMAGED) There is a finite set of possible health messages that a Ceph cluster can raise – these are defined as health checks which have unique identifiers. 当 Ceph 检测到放置组中一个或多个对象副本中的不一致时，它会将放置组标记为 inconsistent。最常见的不一致是： 对象的大小不正确。 Logging and Debugging . The scrub tag is used to differentiate scrubs and also to mark each inode’s first data object in the default data pool (where the backtrace information is stored) with a scrub_tag extended attribute with the value of the tag. . 6 CEPH Filesystem Users — Re: pgs inconsistent, scrub errors We can see with ceph -s that we have some inconsistent PGs, and possible data damage. normal scrubbing – catch the OSD bugs or filesystem errors. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors Ceph no longer provides documentation for operating on a single node, because you would never deploy a system designed for distributed computing on a single node. Severity: 3 - minor. Added by David Galloway about 7 years ago. Enabling¶. 1c1 is active+clean+inconsistent, acting [21,25,30] 2 scrub errors. 1 All day "cluster [INF] overall HEALTH_OK" and errors of deep scrubbing at night disappeared. Intro to Ceph; Installing Ceph; Cephadm; Ceph Storage Cluster; Ceph File System; Ceph Block Device; Ceph Object The PG_STATE_INCONSISTENT flag is set based on num_scrub_errors. If the monitors don’t have a quorum or if there are errors with the monitor a new OSDMap; the scrubbing of its object target; the completion of a PG’s peering; all as specified in the message). If it exceeds a config value threshold mon_osd We would like to show you a description here but the site won’t allow us. 5 and 6. com> wrote: > When you see another one, can you include the xattrs on the files as > well (you can use the attr(1) utility)? >-Sam > > On Sat, Jul 12, 2014 at 9:51 AM, Randy Smith <rbsmith at adams. 0 10. After self healing it ended with the ~3000 SCRUB errors. The PGs are on two different OSDs on the same server node. 61a repair 1 errors, 0 fixed 2017-08-08 08:44:04. The stuck states include: health detail HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 0. [root@vpsapohmcs01 ~]# ceph health detail HEALTH_ERR 1 scrub errors; Possible data damage: 1 pg inconsistent OSD_SCRUB_ERRORS 1 scrub errors PG_DAMAGED Possible data damage: 1 pg inconsistent pg 1. sb1 mon. 574 is active+clean+inconsistent, acting [19,25,2] Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Ceph Cluster in ERR state with scrub mismatch From the cluster log on a MON node: $ grep -C10 "scrub mismatch" /var/log/ceph/ceph. 0 and try to recover. I think thats the problem. e. So I'm going to kill osd. State variables¶. df deep-scrub 3 errors. Pg repairing was still slow, and I also encountered the ceph osd repair * problem. Currently I transferred a deep_scrub to non-production hours (Only backup all VMs & CTs to the server placed outside the cluster): debug ms = 0/0 osd scrub begin hour = 0 osd scrub end hour = 8 osd scrub sleep = 0. However, if more than osd_scrub_auto_repair_num_errors errors It is possible to force Ceph to fix the inconsistent placement group manually. Because scrub handles errors only for . for the problematic inode), Kotresh? Yes, there are subtree exports b/w MDSs for the problematic inode. Assuming you have a cluster state similar to this one: The following table lists the most common errors messages that are returned by the ceph health detail command. 从输出能看出来，scrubbing 是由 PG 的主 OSD 发起的。 4：尝试 deep scrub，结果相同。 OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. 1:6804/1962722 Errors are reported to a (new) central system log. 5 to scrub. Placement Groups¶ Autoscaling placement groups¶. edu> wrote: > > That image is the root file system Product Backlog Scrub; Actions. This section contains information about fixing the most common errors related to the Ceph Placement Groups (PGs). For each test I did with VMs: clone a disk with rbd clone libvirt/_IMG_trusty-server-cloudimg-amd64@snap libvirt/test1 CEPH Filesystem Users — Mimic - cephfs scrub errors. Now since upgrade to mimic it shows "1 large omap objects" in the rgw index pool. 1c1 and is acting on OSD 21, 25 and 30. To verify the integrity of data, Ceph uses a mechanism called deep scrubbing which browse all your data once per week for each placement group. Periodic tick after osd_deep_scrub_interval state is!must_scrub &&!must_deep_scrub && time_for_deep. Default. > All of them were more or less easily fixed with the ceph pg repair X. A pg query can show after scrub inconsistencies repaired the non-primaries still showing num_scrub_errors > 0 in there local object_stat_sum_t. (AIS) AIS is a full-service technology solutions firm, providing industry-leading IT solutions, services, and support. CEPH Filesystem Users — Re: scrub errors: inconsistent PGs Re: scrub Subject: Re: scrub errors: inconsistent PGs; From: Suresh Rama <sstkadu@xxxxxxxxx> Date: Thu, 28 Jan 2021 20:04:22 -0500; Cc: ceph-users <ceph-users@xxxxxxx> In-reply-to: <CABfkVCmyt7ufZ=YJ+y_oEURJGg+Swhz2VJ1R-RAHgBmNSWbztw@mail. Category:-Target version:- Project changed from Ceph to CephFS; Category set to 47 #2 Updated by John Spray almost 7 years ago Status changed from In Progress to ceph-fuse debugging ceph-fuse also supports dump_ops_in_flight. Verify the host is healthy, the daemon is started, and network is functioning. Follow the steps to run ceph health detail, ceph pg repair, and check the osd logs for failing drives. HEALTH_ERR 1 pgs inconsistent; 1 scrub errors. Follow the steps to use ceph health, ceph pg deep-scrub, and The following are the Ceph scrubbing options that you can adjust to increase or decrease scrubbing operations. For more information, see Troubleshooting PGs. Debugging scrubbing errors can be tricky and you don’t necessary know how to proceed. 文章浏览阅读4. started: The op has been accepted Another new OSD daemon command, ‘dump_scrub_reservations’, reveals the scrub reservations that are held for local (primary) and remote (replica) PGs. Ok, so the problematic PG is 17. ceph crash info <ID >: Show details about the specific crash; ceph crash stat: Shows the number of crashes since Ceph installation; ceph crash rm <ID>: Deletes a single A subsequent 'ceph health detail' shows scrub errors. ceph-deploy would create a deploy log file in current directories. The scrubbing process is usually execute on daily basis. Ceph component debug log levels can be adjusted at runtime, while services are running. The table Most common Ceph placement groups errors. Eventually, we’ll probably want to have the system automatically schedule a slow background scrub when the system is idle. Type. Follow the steps to locate the problematic PG, OSD and object, and The problem is as follows: I have a 6 node 3 monitor ceph cluster with 84 osds, 72x7200rpm spin disks and 12xnvme ssds for journaling. Clearly this disk has some issues even though smartctl did not show any specific problems. Common causes include a stopped or crashed daemon, a down host, or a network outage. Re: Mon scrub errors [Thread Prev][Thread Next][Thread Lately I've > been getting scrub errors from the monitors; > > 2018-04-05 07:26:52. 97 And look if it can be resolved. Ceph crash commands. 32. . ec_lost_unfound: a EC shard has missing object after `osd lost` Added by Chang Liu over 5 years ago. Initiated scrub after OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. [ERR] Health check update: 3 scrub errors (OSD_SCRUB_ERRORS) 2018-11-19 11:44:26. 0 & osd. About a week ago we started getting a warning that pgs weren't being deep scrubbed in time. Ceph does not automatically repair PGs when they are found to 文章浏览阅读4. When Ceph detects inconsistencies in one or more replicas of an object in a placement group, it marks the placement group as inconsistent. As a test today, before scrubbing the pg I found the relevant file in /var/lib/ceph/osd/ and cat(1)ed it. CEPH scrubbing. For this, I have just create a minimal cluster with 3 osd : $ ceph-deploy osd create ceph-01:/dev/sdb ceph-02:/dev/sdb ceph-03:/dev/sdb Its Seems you using user named "myuser" and running the command using root rights. For Ceph to determine the current state of a PG, peering must take place. Do not repair the placement groups if the Ceph logs include the following errors: Am 04. Start the deep scrubbing process on the 工作环境中出现问题的 Ceph 的数据是双备份的，OSD 35 所在的磁盘出现了坏道，表现出来的现象是 ceph 经常会报出存储在 OSD 35 上的 pg 数据不一致，以及报出 scrub error，以下是 ceph health detail 命令输出新相关信息。 Ceph Filesystem Scrub Scrub tag is a random string that can used to monitor the progress of the scrub operation (explained further in this document). Learn how to identify and fix the possible data damage caused by ceph scrub errors in SUSE Enterprise Storage 5. The most information you can get easily is with: ceph tell N. 问题定位查看对应_possible data damage: 1 Initiated scrub after osd_deep_scrub_interval state is must_scrub &&!must_deep_scrub && time_for_deep. Ceph scrubbing is analogous to the fsck command on the object storage layer. Custom tag can also be specified when initiating the scrub operation. Errors are reported in logs. 1 Steps to repair inconsijtent PGs: Watch the ceph log for the result of the scrub. df is active+clean+inconsistent, acting [35,11,18] 1 scrub errors. At this Point i tried again to repair the with ceph pg rair and ceph pg deep-srub. gmail. State variables . See also ceph-mon (8), ceph-osd (8), ceph-mds (8) This command acts on the tables of all ‘in’ MDS ranks. This can be the cause of overload when all osd running deep scrubbing at the same time. Updated 3 months ago. In tracker #64730, I am doubting the in-memory versions mismatches to be related to subtree exporting b/w active MDSs. Target version:-% Done: 0% jewel,hammer. Ceph does not automatically repair placement groups when osd: deep-scrub stat mismatch errors seen. You can always try to run ceph pg repair 17. The weekly deep scrub reads the objects and uses checksums to ensure data integrity. set; 4 scrub errors; Possible data damage: 1 pg inconsistent 2018-11-19 09:03:14. OSD_TOO_MANY_REPAIRS The count of read repairs has exceeded the config value threshold mon_osd_warn_num_repaired (default: 10). There is no need to deprecate this command (same major release since it was first introduced). The identifier is a terse object data. In some circumstances you might want to adjust debug log levels in ceph. Y > command. The table provides links to corresponding sections that explain the errors When we request the Ceph status we get HEALTH_ERROR. 0 [INF] HEALTH_ERR; 1 pgs inconsistent; 1 ceph-object-tool and the remove operation to remove all left over files. a special case of recovery, in which the entire contents of the PG are scanned and synchronized, instead of inferring what needs to be transferred from the PG logs of recent operations. S = Do regular scrub. sh: TEST FAILED WITH 1 ERRORS. 915148 mon. This one is usually light and not impacting the I/O performance as on the graph above. #5 - 07/17/2013 10:21 PM - Faidon Liambotis I've had multiple /var/log across the cluster fill up from random OSDs that peer with osd. 33c6 is active+clean+inconsistent, acting [355,138,29] 2. Added by Laura Flores about 1 year ago. log 2022-08-25 12:02:28. The identifier is a In order to identify possible failing disks that aren’t seeing scrub errors, a count of read repairs is maintained. Section 6. 20 [ERR] 3. Subject: scrub errors: inconsistent PGs; From: Void Star Nill <void. Do not repair the placement groups if the Ceph logs include the following errors: We can see with ceph -s that we have some inconsistent PGs, and possible data damage. You can set these configuration options with the ceph config set global Learn how to troubleshoot and fix ceph pg inconsistent errors by finding and deleting the bad object. The minimal interval in seconds for scrubbing the Ceph OSD Daemon when the Ceph Storage Cluster load is low. Prerequisites. 6 is active+clean+inconsistent, acting [0,1,2] 2 scrub errors Warning: You can repair only certain inconsistencies. id> In another terminal session trigger a deep-scrub on the placement group. github: Clarify checklist details (pr#54131, Anthony D'Atri). 33c6 is active+clean+inconsistent, acting [355,138,29]2. Skip to navigation Skip to main content Utilities Subscriptions Downloads Containers Ceph is an open source distributed storage system designed to evolve with data. It ceph tell mds. Start the deep scrubbing process on the osd/scrub: modifying osd_deep_scrub_stride while pg is doing deep scrub may cause inconsistent errors Added by Zhansong Gao almost 2 years ago. 11d is `ceph scrub` 命令是用于对Ceph存储集群中的对象进行数据一致性检查和修复的命令。具体的用法如下： 1. Placement groups (PGs) are an internal implementation detail of how Ceph distributes data. But there were Warnings: 4 scrub errors Possible data damage: 1 pg inconsistent 6 pgs not deep-scrubbed in time 4 pgs not scrubbed in time . There is a specific osd in my cluster that is behind on deep-scrubbing. However, if more than osd_scrub_auto_repair_num_errors errors are found a repair is full health detail. qa: Scrub error [prev in list] [next in list] [prev in thread] [next in thread] List: ceph-users Subject: [ceph-users] Re: [ERR] OSD_SCRUB_ERRORS: 2 scrub errors From: "David Orman" <ormandj corenode ! com> Date: 2023-01-09 22:05:38 Message-ID: 4e4e42ea-1128-4764-8709-7fc0d393f390 app ! fastmail ! com [Download RAW message or body] "dmesg" on all the linux hosts and look for signs of Hello, When you deploy ceph to other nodes with the orchestrator, they "just" have the containers you deployed to them. recovery_wait Recursive scrub is asynchronous (as hinted by mode in the output above). # ceph health detail HEALTH_ERR 1 pgs inconsistent; 1 scrub errors pg 40. Brought to you by the Ceph Foundation. This means in your case, you started the monitor container on ceph101 and you must have installed at least the ceph-common package (else the ceph command would not work). ). Scrubs initiated using the command format How to resolve "1 scrub errors/Possible data damage: 1 pg inconsistent" This document (000019694) is provided subject to the disclaimer at the end of this document. The most common inconsistencies are: Ceph - Documentation #61739 Improve "Repairing PG Inconsistencies" page 06/20/2023 02:26 PM - Niklas Hambuechen Status: New % Done: 0% Priority: Normal Spent time: 0:00 hour /a/vshankar-2023-08-24_07:29:19-fs-wip-vshankar-testing-20230824. For more information, see Repairing PG Inconsistencies. Run "ceph health detail" to find the pg ID for the inconsistent pg: #==[ Command ]=====# # /usr/bin/ceph --id=storage --connect-timeout=5 health detail Client eviction (where the client is blocklisted and other clients must wait for a post-blocklist epoch to touch the same objects). A simple command can give use the PG: In the case of erasure-coded and BlueStore pools, Ceph will automatically perform repairs if osd_scrub_auto_repair (default false`) is set to ``true and if no more than osd_scrub_auto_repair_num_errors (default 5) errors are found. backfilling. There are several improvements which need to be made: 1) There needs to be a way to query the OSD_SCRUB_ERRORS¶ Recent OSD scrubs have discovered inconsistencies. Maybe you run this first ceph-deploy command using root rights, then you run the second ceph-deploy command using a "myuser" user. bash $ sudo ceph health detail HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 17. 556 INFO:teuthology. Reviewed: Affected Versions: ceph-qa-suite: Component(RADOS): Pull request ID: Crash signature (v1): Crash Adjust the thresholds with ceph config set osd osd_deep_scrub_large_omap_object_key_threshold KEYS and ceph config set osd osd_deep_scrub_large_omap_object_value_sum_threshold BYTES commands. Float. Bug #59172 open. That's going to give you a big JSON report; it can be intimidating but is very informative. CACHE_POOL_NEAR_FULL In tracker #64730, I am doubting the in-memory versions mismatches to be related to subtree exporting b/w active MDSs. No cephscruberror解决方案**问题描述**控制节点重启后ceph集群报警如下：ceph-s7scruberror**原因分析**数据的不一致性（inconsistent）指对象的大小不正确、恢复结束后某副本出现了对象丢失的情况。数据的不一致性会导致清理失败（scruberror）。CEPH在存储的 health HEALTH_ERR 1 pgs inconsistent; 1 scrub errors; 除了定时的清理外，管理员也可以通过命令启动清理过程： root@ceph1:~# ceph pg scrub 9. 0 TiB avail pgs: 1119 active+clean 1 OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. CEPH Filesystem Users — Re: 1 pgs inconsistent 2 scrub errors. > > Is there a Hi, please check with ceph health which pg's cause trouble. com> OSD_SCRUB_ERRORS Recent OSD scrubs have discovered inconsistencies. This is the [3] excerpt from the log from the deep-scrub that marked the PG inconsistent. Initiated scrub state is must_scrub &&!must_deep_scrub &&!time_for_deep. After figuring out the osd-scrub-load-threshold and osd-max-scrubs parameters and injecting them, I finally accelerated the scrub process and ended with 0 remaining scrub errors. Ceph Health detail reports this: root@petasan1:~# ceph health detail. #ceph health detail HEALTH_ERR 12 scrub errors; Possible data damage: 1 pg inconsistent Apr 27th, 2015 | Comments | Tag: ceph Ceph: manually repair object. 1、收到异常情况如下: OSD_SCRUB_ERRORS 12 scrub errors PG_DAMAGED Possible data damage: 1 pg inconsistent pg 6. Table Of Contents. com for more information. OSD_SCRUB_ERRORS In the case of erasure-coded and BlueStore pools, Ceph will automatically perform repairs if osd_scrub_auto_repair (default false) is set to true and if no more than osd_scrub_auto_repair_num_errors (default 5) errors are found. 对指定的PG进行Scrub操作： ``` ceph pg scrub <pg-id> ``` 其中 Check the Ceph logs for any error messages listed in Section 1. For erasure coded and bluestore pools, Ceph will automatically repair if osd_scrub_auto_repair (configuration default “false”) is set to true and at most osd_scrub_auto_repair_num_errors (configuration default 5) errors are found. There is a finite set of possible health messages that a Ceph cluster can raise – these are defined as health checks which have unique identifiers. 508605 osd. main branch¶ DONT DELETE THIS, ADD NEW ENTRY BELOW THIS¶ wip-mchangir-testing-20240828. 12/14/2016 05:50 AM - de lan Status: Closed % Done: 0% Priority: Normal Spent time: 0:00 hour Assignee: Category: Target version: 38 scrub errors too many PGs per OSD (601 > max 300) monmap e1: 3 mons at Which PGs have scrub errors ceph pg ls inconsistent. CACHE_POOL_NEAR_FULL Wiki » Planning » Infernalis » . Or: cephuser@adm > rados list-inconsistent-pg rbd ["0. ceph. the description for: osd_scrub_begin_week_day says "But a scrub will be performed no matter whether the time window allows or not, when the PG’s scrub interval exceeds osd_scrub_max_interval. Summary Current scrub and repair is fairly primitive. Subject: 1 pgs inconsistent 2 scrub errors; From: Mio Vlahović <Mio. com/ceph/ceph/pull/16292) but the tweak to this particular one is While Ceph Dashboard might work in older browsers, we cannot guarantee compatibility and recommend keeping your browser up to date. 53086270) 13609569 Ceph: Cluster in ERR state with scrub mismatch - Manually running a deep scrub on the pg succeeds, and ceph health goes back to normal. CEPH Filesystem Users — Re: Mon scrub errors. (The ceph-mon, ceph-osd, and ceph-mds daemons can be upgraded and restarted in any order. Each pool in the system has a pg_autoscale_mode property that can be set to This snowballed into me pondering about what clog messages really should look like (https://github. ceph-volume: get_first_lv() refactor (pr#43959, Guillaume Abrioux) ceph-volume: don't use MultiLogger in find_executable_on_host() (pr#44766, ceph-qa-suite: Pull request ID: Crash signature (v1): Description. Documentation ; Name: [TROUBLESHOOT] OSD_SCRUB_ERRORS XX scrub errors : Description: how to solve this “issue” Modification date : 29/07/2019: Owner: I'm seeing what at least looks similar to this bug on a cluster running: ceph version 16. See if it has any and where they are stuck. The Ceph Documentation is a community resource funded and hosted by the non-profit Ceph Foundation. Search results for '[ceph-users] Read errors on OSD' (Questions and Answers) 3 . 1e instructing pg 9. 1 osd. 错误描述 # ceph health detail HEALTH_ERR 1 scrub errors; Possible data damage: 1 pg inconsistent OSD_SCRUB_ERRORS 1 scrub errors PG_DAMAGED Possible data damage: 1 pg inconsistent pg 2. Ceph manages data internally at placement-group granularity: this scales better than would managing individual RADOS objects. orchestra. Detailed Description¶ On the osd side, the first change is that the primary needs to track the inconsistency information as scrub progresses. 对指定的PG进行Scrub操作： ``` ceph pg scrub <pg-id> ``` 其中 `<pg-id>` 指定了要进行Scrub操作的PG ID，可以使用 `ceph pg dump` 命令查看。 2. In order to identify possible failing disks that aren 1. 2018, at 12:12, Dominque Roux <dominique. 10. 1c1 and check if this will fix your issue. h3. “pg repair” will not solve every problem. backfill_toofull. osd: deep-scrub stat mismatch errors seen. 1 spewing "can't decode unknown message type" I was playing with rbd to create, delete and snapshot images so that I can have VM disks on Ceph. Устранение проблем c PG Ceph кластера HEALTH_ERR 1 pgs inconsistent; 1 scrub errors На главную Категории Архив Дата-центр RPS for Veeam 2017-04-24 HEALTH_ERR 1 pgs inconsistent; 2 scrub errors pg 0. RGW: RGW now supports S3 Object Lock set of APIs allowing for a WORM model for storing objects. 9k次。1. https://tracker. ceph health detail HEALTH_ERR 1 pgs inconsistent; 1 scrub errors pg 2. dynamic resharding is disabled. Raw. xqrtc bouhhveq jiubc lgqr zmrax zvy slansx jsawm dhfp dwusys