[ceph-users] Bug, pg_upmap_primaries.empty()

26 Apr 2023

      Good morning, i found a bug on ceph reef 

After installing ceph and deploying 9 osds with a cephfs layer. I got
this error after many writing and reading operations on the ceph fs i
deployed. 

```{
    "assert_condition": "pg_upmap_primaries.empty()",
    "assert_file":
"/home/jenkins-build/build/workspace/ceph-dev-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos8/DIST/centos8/MACHINE_SIZE/gigantic/release/18.0.0-3593-g1e73409b/rpm/el8/BUILD/ceph-18.0.0-3593-g1e73409b/src/osd/OSDMap.cc",
    "assert_func": "void OSDMap::encode(ceph::buffer::v15_2_0::list&,
uint64_t) const",
    "assert_line": 3239,
    "assert_msg":
"/home/jenkins-build/build/workspace/ceph-dev-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos8/DIST/centos8/MACHINE_SIZE/gigantic/release/18.0.0-3593-g1e73409b/rpm/el8/BUILD/ceph-18.0.0-3593-g1e73409b/src/osd/OSDMap.cc:
In function 'void OSDMap::encode(ceph::buffer::v15_2_0::list&, uint64_t)
const' thread 7f86cb8e5700 time
2023-04-26T12:25:12.278025+0000\n/home/jenkins-build/build/workspace/ceph-dev-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos8/DIST/centos8/MACHINE_SIZE/gigantic/release/18.0.0-3593-g1e73409b/rpm/el8/BUILD/ceph-18.0.0-3593-g1e73409b/src/osd/OSDMap.cc:
3239: FAILED ceph_assert(pg_upmap_primaries.empty())\n",
    "assert_thread_name": "msgr-worker-0",
    "backtrace": [
        "/lib64/libpthread.so.0(+0x12cf0) [0x7f86d0d21cf0]",
        "gsignal()",
        "abort()",
        "(ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x18f) [0x55ce1794774b]",
        "/usr/bin/ceph-osd(+0x6368b7) [0x55ce179478b7]",
        "(OSDMap::encode(ceph::buffer::v15_2_0::list&, unsigned long)
const+0x1229) [0x55ce183e0449]",
        "(MOSDMap::encode_payload(unsigned long)+0x396)
[0x55ce17ae2576]",
        "(Message::encode(unsigned long, int, bool)+0x2e)
[0x55ce1825dbee]",
        "(ProtocolV1::prepare_send_message(unsigned long, Message*,
ceph::buffer::v15_2_0::list&)+0x54) [0x55ce184e5914]",
        "(ProtocolV1::write_event()+0x511) [0x55ce184f4ce1]",
        "(EventCenter::process_events(unsigned int,
std::chrono::duration<unsigned long, std::ratio<1l, 1000000000l>
...
*)+0xa64) [0x55ce182eb484]",
        "/usr/bin/ceph-osd(+0xfdf276) [0x55ce182f0276]",
        "/lib64/libstdc++.so.6(+0xc2b13) [0x7f86d0369b13]",
        "/lib64/libpthread.so.0(+0x81ca) [0x7f86d0d171ca]",
        "clone()"
    ],
    "ceph_version": "18.0.0-3593-g1e73409b",
    "crash_id":
"2023-04-26T12:25:12.286947Z_55675d7c-7833-4e91-b0eb-6df705104c2e",
    "entity_name": "osd.0",
    "os_id": "centos",
    "os_name": "CentOS Stream",
    "os_version": "8",
    "os_version_id": "8",
    "process_name": "ceph-osd",
    "stack_sig":
"0ffad2c4bc07caf68ff1e124d3911823bc6fa6f5772444754b7f0a998774c8fe",
    "timestamp": "2023-04-26T12:25:12.286947Z",
    "utsname_hostname": "node1-link-1",
    "utsname_machine": "x86_64",
    "utsname_release": "5.4.0-100-generic",
    "utsname_sysname": "Linux",
    "utsname_version": "#113-Ubuntu SMP Thu Feb 3 18:43:29 UTC 2022"
}
``` 

I really don't know what is this error for, Will appreciate any help. 

Cordially,

-- 
Nguetchouang Ngongang Kevin
ENS de Lyon
https://perso.ens-lyon.fr/kevin.nguetchouang/