Yes, you are not only allowed to approach Epson Customer Service but also fetch the instant technical backing directly from the professionals. If you want to avail the quickest remedy along with the supervision regarding the problems and hurdles, pertaining to HP printer network, you should get the free assistance at anytime. https://www.epsonprintersupportpro.net/
Yes, you should! If you are one of those who are have a word with the professionals who are capable of resolving the whole host of network problems. You can make use of HP Support Assistant who will solve the whole host of wireless printer problems. https://www.amiytech.com/hp-support-assistant/
Hi All
We had a cluster (v13.2.4) with 32 osds in total. At first, an osd (osd.18)
in cluster was down. So, we tried to remove the osd and added a new one
(osd.32) with new ID. We unplugged the disk (osd.18) and plugged in a new
disk in the same slot and add osd.32 into cluster. Then, osd.32 was
booting, but, we found it takes much time (around 18 mins) for the osd to
change to up state. Diving into osd.32 logs, we see that there is much
rocksdb activity before osd.32 change to up state. Can anyone explain why
this happened or give me any advice about how to prevent from this. Thanks.
[osd.32 log]
2020-08-03 15:36:58.852 7f88021fa1c0 0 osd.32 0 done with init, starting
boot process
2020-08-03 15:36:58.852 7f88021fa1c0 1 osd.32 0 start_boot
2020-08-03 15:36:58.854 7f87db02b700 -1 osd.32 0 waiting for initial osdmap
2020-08-03 15:36:58.855 7f87e4ba0700 -1 osd.32 0 failed to load OSD map for
epoch 22010, got 0 bytes
2020-08-03 15:36:58.955 7f87e0836700 0 osd.32 22011 crush map has features
283675107524608, adjusting msgr requires for clients
2020-08-03 15:36:58.955 7f87e0836700 0 osd.32 22011 crush map has features
283675107524608 was 288232575208792577, adjusting msgr requires for mons
*2020-08-03 15:36:58.955* 7f87e0836700 0 osd.32 22011 crush map has
features 720859615486820352, adjusting msgr requires for osds
2020-08-03 15:37:31.182 7f87e1037700 4 rocksdb:
[/home/gitlab/rpmbuild/BUILD/ceph-13.2.4/src/rocksdb/db/db_impl_write.cc:1346]
[default] New memtable created with log file: #16. Immutable memtables: 0.
2020-08-03 15:37:31.285 7f87e8045700 4 rocksdb: (Original Log Time
2020/08/03-15:37:31.183995)
[/home/gitlab/rpmbuild/BUILD/ceph-13.2.4/src/rocksdb/db/db_impl_compaction_flush.cc:1396]
Calling FlushMemTableToOutputFile with column family [default], flush slots
available 1, compaction slots available 1, flush slots scheduled 1,
compaction slots scheduled 0
2020-08-03 15:37:31.285 7f87e8045700 4 rocksdb:
[/home/gitlab/rpmbuild/BUILD/ceph-13.2.4/src/rocksdb/db/flush_job.cc:300]
[default] [JOB 3] Flushing memtable with next log file: 16
-------- lots of rocksdb activity---------
2020-08-03 15:54:21.704 7f87e8045700 4 rocksdb: (Original Log Time
2020/08/03-15:54:21.705680)
[/home/gitlab/rpmbuild/BUILD/ceph-13.2.4/src/rocksdb/db/memtable_list.cc:397]
[default] Level-0 commit table #112: memtable #1 done
2020-08-03 15:54:21.704 7f87e8045700 4 rocksdb: (Original Log Time
2020/08/03-15:54:21.705704) EVENT_LOG_v1 {"time_micros": 1596441261705697,
"job": 51, "event": "flush_finished", "output_compression":
"NoCompression", "lsm_state": [1, 3, 0, 0, 0, 0, 0], "immutable_memtables":
0}
2020-08-03 15:54:21.704 7f87e8045700 4 rocksdb: (Original Log Time
2020/08/03-15:54:21.705721)
[/home/gitlab/rpmbuild/BUILD/ceph-13.2.4/src/rocksdb/db/db_impl_compaction_flush.cc:172]
[default] Level summary: base level 1 max bytes base 268435456 files[1 3 0
0 0 0 0] max score 0.75
*2020-08-03 15:54:38.567* 7f87e0836700 1 osd.32 502096 state: booting ->
active
2020-08-03 15:54:38.567 7f87d5820700 1 osd.32 pg_epoch: 502096 pg[1.17e(
empty local-lis/les=0/0 n=0 ec=11627/16 lis/c 501703/501703 les/c/f
501704/501704/0 502096/502096/502096) [32,26,28] r=0 lpr=502096
pi=[501703,502096)/1 crt=0'0 mlcod 0'0 unknown mbc={}] state<Start>:
transitioning to Primary
Best
Jerry
HP envy 4520 wireless printer is one of the most popular brands, which is specially known for its printing services. It is the best product in the features and functions, so millions of users prefer it for the best printing performance. Due to some technical problems, my HP 4520 drivers are fully corrupted, so I want to install the newest version of HP envy 4520 drivers successfully. As per my technical experience, I am trying my skills to install HP envy 4520 printer driver. I am failing to complete installation process. So anyone can help me to install printer driver appropriately.
https://www.hpprintersupportpro.com/blog/troubleshoot-hp-printer-envy-4520-…
HP envy 4520 wireless printer is one of the most popular brands, which is specially known for its printing services. It is the best product in the features and functions, so millions of users prefer it for the best printing performance. Due to some technical problems, my HP 4520 drivers are fully corrupted, so I want to install the newest version of [url=https://www.hpprintersupportpro.com/blog/troubleshoot-hp-printer-envy-4… envy 4520 drivers[/url] successfully. As per my technical experience, I am trying my skills to install HP envy 4520 printer driver. I am failing to complete installation process. So anyone can help me to install printer driver appropriately.
Hi,
Our production cluster runs Luminous.
Yesterday, one of our OSD-only hosts came up with its clock about 8
hours wrong(!) having been out of the cluster for a week or so.
Initially, ceph seemed entirely happy, and then after an hour or so it
all went South (OSDs start logging about bad authenticators, I/O pauses,
general sadness).
I know clock sync is important to Ceph, so "one system is 8 hours out,
Ceph becomes sad" is not a surprise. It is perhaps a surprise that the
OSDs were allowed in at all...
What _is_ a surprise, though, is that at no point in all this did Ceph
raise a peep about clock skew. Normally it's pretty sensitive to this -
our test cluster has had clock skew complaints when a mon is only
slightly out, and here we had a node 8 hours wrong.
Is there some oddity like Ceph not warning on clock skew for OSD-only
hosts? or an upper bound on how high a discrepency it will WARN about?
Regards,
Matthew
example output from mid-outage:
root@sto-3-1:~# ceph -s
cluster:
id: 049fc780-8998-45a8-be12-d3b8b6f30e69
health: HEALTH_ERR
40755436/2702185683 objects misplaced (1.508%)
Reduced data availability: 20 pgs inactive, 20 pgs peering
Degraded data redundancy: 367431/2702185683 objects
degraded (0.014%), 4549 pgs degraded
481 slow requests are blocked > 32 sec. Implicated osds
188,284,795,1278,1981,2061,2648,2697
644 stuck requests are blocked > 4096 sec. Implicated osds
22,31,33,35,101,116,120,130,132,140,150,159,201,211,228,263,327,541,561,566,585,589,636,643,649,654,743,785,790,806,865,1037,1040,1090,1100,1104,1115,1134,1135,1166,1193,1275,1277,1292,1494,1523,1598,1638,1746,2055,2069,2191,2210,2358,2399,2486,2487,2562,2589,2613,2627,2656,2713,2720,2837,2839,2863,2888,2908,2920,2928,2929,2947,2948,2963,2969,2972
[...]
--
The Wellcome Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a
company registered in England with number 2742969, whose registered
office is 215 Euston Road, London, NW1 2BE.
Hi all,
Does anyone know if using fio with the rados ioengine will produce
similar results to rados bench, i.e. can the 2 be used
interchangeably?
thx
Frank
Hi
I am trying to delete a bucket using the following command:
# radosgw-admin bucket rm --bucket=<bucket-name> --purge-objects
However, in console I get the following messages. About 100+ of those messages per second.
2020-08-04T17:11:06.411+0100 7fe64cacf080 1 RGWRados::Bucket::List::list_objects_ordered INFO ordered bucket listing requires read #1
The command has been running for about 35 days days and it still hasn't finished. The size of the bucket is under 1TB for sure. Probably around 500GB.
I have recently removed about a dozen of old buckets without any issues. It's this particular bucket that is being very stubborn.
Anything I can do to remove it, including it's objects and any orphans it might have?
Thanks
Andrei
There is a general documentation meeting called the "DocuBetter Meeting",
and it is held every two weeks. The next DocuBetter Meeting will be on 12
Aug 2020 at 0830 PDT, and will run for thirty minutes. Everyone with a
documentation-related request or complaint is invited. The meeting will be
held here: https://bluejeans.com/908675367
This meeting will cover the reorganization of the Ceph website as well as
Zac's recently-developed workflow that aims to make it possible to move the
good ideas from stale or poorly-formed documentation PRs into the
documentation more quickly.
Send documentation-related requests and complaints to me by replying to
this email and CCing me at zac.dover(a)gmail.com.
The next DocuBetter meeting is scheduled for:
12 Aug 2020 0830 PDT
12 Aug 2020 1630 UTC
13 Aug 2020 0230 AEST
Etherpad: https://pad.ceph.com/p/Ceph_Documentation
Zac's docs whiteboard: https://pad.ceph.com/p/docs_whiteboard
Meeting: https://bluejeans.com/908675367
Recently we encountered an instance of bucket corruption of two varieties.
One in which the bucket metadata was missing and another in which the
bucket.instance metadata was missing for various buckets.
We have seemingly been successful in restoring the metadata by
reconstructing it from the remaining pieces of metadata and injecting it
using "radosgw-admin metadata put" for both bucket and bucket.instance
metadata
One piece of information that we could not determine was "tag"
"ver": {
"tag": "_iIMyX8XLf0HSTciEsrgLA7j",
"ver": 1
},
and so we tried reusing the tag in bucket.instance for the bucket metadata
and also spoofed the tag value to something random. It appears in both
situations the bucket's functionality was restored. I am however uncertain
of the function of this "tag" key and what situation I may be exposing
myself to by reusing or spoofing its value.
Respectfully,
*Wes Dillingham*
wes(a)wesdillingham.com
LinkedIn <http://www.linkedin.com/in/wesleydillingham>
