Just found this in the tierd.log Not sure what it means or how to fix it tho, but I assume it may be the cause of my problem with files not being demoted from the hot tier..
[2018-09-30 12:25:56.438821] E [MSGID: 114031] [client-rpc-fops.c:233:client3_3_mknod_cbk] 0-FFPrimary-client-5: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> [Transport endpoint is not connected] [2018-09-30 12:25:56.440940] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //720ee8d5-1667-11e8-a5dc-902b3450f388 (10fb1bd9-b962-415c-8751-f0ef8bf06473). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.444633] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //e7df9e17-b62f-4668-a4c1-dc5d86dcae6e (32eff7dc-dcda-4488-8464-9eace06e1b69). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.448347] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //9758be45-c466-45a2-9cd6-572f80c54da9 (389acc57-d205-4022-acea-d0f400c2ad89). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.451919] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //test-march-3-bc-file-501 (41ee3e27-40be-4f64-af01-e18cc63065e3). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.456198] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //krishna (49657a82-8c64-43c0-94df-e1e78840aa1d). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.459702] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //test1 (5ac7caba-f2c3-4bf1-bb38-cf6ed940dac0). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.463164] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //c7947fa1-a496-400c-b6a4-b4e084b8f316 (5e909f4e-6263-4091-8378-26479496e715). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.466601] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //ea37891d-1ab8-40f8-95a3-eee822c7040a (6dfe1d97-34f4-440b-9502-5eab172de58a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.470129] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //a42d1e12-fc11-4a51-a744-8e6c3b11be0a (7a081218-3cc1-442c-be4b-43bd7dd01724). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.473758] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //b0acb442-fe60-4022-bee2-d11d49422f20 (8788d650-9800-47ab-bf07-87f9dcd0392c). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.477237] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //f7357147-c2ea-4abe-9c59-136f049bfccb (91ecb7b5-84fb-48d2-af2b-440ab6f25cfa). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.480696] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //35949c80-5496-445d-b2d6-e7d2061e9135 (972256c3-8eb8-49d5-a4ab-cca34abc7b0a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.484354] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //13660ae8-4138-47f2-a858-8880d97b4e8d (a6027333-b269-4810-a188-3af51c04fdcb). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.487884] I [MSGID: 109038] [tier.c:1122:tier_migrate_using_query_file] 0-FFPrimary-tier-dht: Demotion failed for melvin(gfid:a9b49996-ba84-4b88-b182-7a0e677749aa) [2018-09-30 12:25:56.490973] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //d1cb5906-e2d9-444a-9622-599509a73e3b (ac3cd35b-d766-46c1-ae4b-a8373e35a77b). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.494618] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //74ad729b-17dd-44d1-8b86-1db0dce862d8 (ac54d8b4-f826-48b2-ab18-75b561526689). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.498059] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //0368ebe6-9ac3-4d72-9795-0a46800aa90b (c627ff61-1819-4a0b-81ac-d53b8ab872d4). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.501428] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //DBTest (c831be42-c63b-4664-b62e-1c3f9c24e201). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:56.504736] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //testCliff (cac8d0c8-2a10-4fa1-8b94-bf47981c01ff). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] The message "I [MSGID: 109038] [tier.c:1122:tier_migrate_using_query_file] 0-FFPrimary-tier-dht: Demotion failed for 6bed3d1e-17b8-11e8-a5dc-902b3450f388(gfid:0249ff10-18aa-4727-b873-d67b42047f2d)" repeated 4 times between [2018-09-30 12:25:53.164873] and [2018-09-30 12:25:57.515127] [2018-09-30 12:25:57.520933] W [MSGID: 114031] [client-rpc-fops.c:2860:client3_3_lookup_cbk] 0-FFPrimary-client-3: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> (10fb1bd9-b962-415c-8751-f0ef8bf06473) [No such file or directory] [2018-09-30 12:25:57.521545] W [MSGID: 114031] [client-rpc-fops.c:2860:client3_3_lookup_cbk] 0-FFPrimary-client-5: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> (10fb1bd9-b962-415c-8751-f0ef8bf06473) [Transport endpoint is not connected] [2018-09-30 12:25:57.521854] E [MSGID: 114031] [client-rpc-fops.c:233:client3_3_mknod_cbk] 0-FFPrimary-client-5: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> [Transport endpoint is not connected] [2018-09-30 12:25:57.524079] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //720ee8d5-1667-11e8-a5dc-902b3450f388 (10fb1bd9-b962-415c-8751-f0ef8bf06473). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.527993] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //e7df9e17-b62f-4668-a4c1-dc5d86dcae6e (32eff7dc-dcda-4488-8464-9eace06e1b69). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.531829] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //9758be45-c466-45a2-9cd6-572f80c54da9 (389acc57-d205-4022-acea-d0f400c2ad89). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.535529] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //test-march-3-bc-file-501 (41ee3e27-40be-4f64-af01-e18cc63065e3). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.539852] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //krishna (49657a82-8c64-43c0-94df-e1e78840aa1d). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.543468] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //test1 (5ac7caba-f2c3-4bf1-bb38-cf6ed940dac0). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.547051] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //c7947fa1-a496-400c-b6a4-b4e084b8f316 (5e909f4e-6263-4091-8378-26479496e715). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.550694] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //ea37891d-1ab8-40f8-95a3-eee822c7040a (6dfe1d97-34f4-440b-9502-5eab172de58a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.554498] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //a42d1e12-fc11-4a51-a744-8e6c3b11be0a (7a081218-3cc1-442c-be4b-43bd7dd01724). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.558086] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //b0acb442-fe60-4022-bee2-d11d49422f20 (8788d650-9800-47ab-bf07-87f9dcd0392c). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.561568] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //f7357147-c2ea-4abe-9c59-136f049bfccb (91ecb7b5-84fb-48d2-af2b-440ab6f25cfa). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.565094] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //35949c80-5496-445d-b2d6-e7d2061e9135 (972256c3-8eb8-49d5-a4ab-cca34abc7b0a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.568562] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //13660ae8-4138-47f2-a858-8880d97b4e8d (a6027333-b269-4810-a188-3af51c04fdcb). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.571974] I [MSGID: 109038] [tier.c:1122:tier_migrate_using_query_file] 0-FFPrimary-tier-dht: Demotion failed for melvin(gfid:a9b49996-ba84-4b88-b182-7a0e677749aa) [2018-09-30 12:25:57.574925] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //d1cb5906-e2d9-444a-9622-599509a73e3b (ac3cd35b-d766-46c1-ae4b-a8373e35a77b). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.578639] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //74ad729b-17dd-44d1-8b86-1db0dce862d8 (ac54d8b4-f826-48b2-ab18-75b561526689). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.582118] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //0368ebe6-9ac3-4d72-9795-0a46800aa90b (c627ff61-1819-4a0b-81ac-d53b8ab872d4). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:57.585547] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //DBTest (c831be42-c63b-4664-b62e-1c3f9c24e201). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] The message "E [MSGID: 109037] [tier.c:2532:tier_run] 0-FFPrimary-tier-dht: Demotion failed" repeated 3 times between [2018-09-30 12:25:54.323716] and [2018-09-30 12:25:57.592361] [2018-09-30 12:25:58.002724] I [MSGID: 0] [dht-rebalance.c:4194:gf_defrag_total_file_size] 0-FFPrimary-tier-dht: local subvol: FFPrimary-cold-dht,cnt = 272288612352 [2018-09-30 12:25:58.018840] I [MSGID: 0] [dht-rebalance.c:4198:gf_defrag_total_file_size] 0-FFPrimary-tier-dht: Total size files = 272288612352 [2018-09-30 12:25:58.018854] I [dht-rebalance.c:4325:dht_file_counter_thread] 0-dht: tmp data size =272288612352 The message "E [MSGID: 109037] [tier.c:720:tier_lookup_file] 0-FFPrimary-tier-dht: Failed to lookup file 6bed3d1e-17b8-11e8-a5dc-902b3450f388 [No such file or directory]" repeated 4 times between [2018-09-30 12:25:54.247352] and [2018-09-30 12:25:58.599151] [2018-09-30 12:25:58.599162] I [MSGID: 109038] [tier.c:1122:tier_migrate_using_query_file] 0-FFPrimary-tier-dht: Demotion failed for 6bed3d1e-17b8-11e8-a5dc-902b3450f388(gfid:0249ff10-18aa-4727-b873-d67b42047f2d) [2018-09-30 12:25:58.604808] W [MSGID: 114031] [client-rpc-fops.c:2860:client3_3_lookup_cbk] 0-FFPrimary-client-3: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> (10fb1bd9-b962-415c-8751-f0ef8bf06473) [No such file or directory] [2018-09-30 12:25:58.605428] W [MSGID: 114031] [client-rpc-fops.c:2860:client3_3_lookup_cbk] 0-FFPrimary-client-5: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> (10fb1bd9-b962-415c-8751-f0ef8bf06473) [Transport endpoint is not connected] [2018-09-30 12:25:58.605750] E [MSGID: 114031] [client-rpc-fops.c:233:client3_3_mknod_cbk] 0-FFPrimary-client-5: remote operation failed. Path: <gfid:10fb1bd9-b962-415c-8751-f0ef8bf06473> [Transport endpoint is not connected] [2018-09-30 12:25:58.607865] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //720ee8d5-1667-11e8-a5dc-902b3450f388 (10fb1bd9-b962-415c-8751-f0ef8bf06473). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.611433] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //e7df9e17-b62f-4668-a4c1-dc5d86dcae6e (32eff7dc-dcda-4488-8464-9eace06e1b69). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.615059] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //9758be45-c466-45a2-9cd6-572f80c54da9 (389acc57-d205-4022-acea-d0f400c2ad89). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.618669] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //test-march-3-bc-file-501 (41ee3e27-40be-4f64-af01-e18cc63065e3). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.622667] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //krishna (49657a82-8c64-43c0-94df-e1e78840aa1d). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.626029] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //test1 (5ac7caba-f2c3-4bf1-bb38-cf6ed940dac0). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.629459] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //c7947fa1-a496-400c-b6a4-b4e084b8f316 (5e909f4e-6263-4091-8378-26479496e715). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.632994] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //ea37891d-1ab8-40f8-95a3-eee822c7040a (6dfe1d97-34f4-440b-9502-5eab172de58a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.636669] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //a42d1e12-fc11-4a51-a744-8e6c3b11be0a (7a081218-3cc1-442c-be4b-43bd7dd01724). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.640155] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //b0acb442-fe60-4022-bee2-d11d49422f20 (8788d650-9800-47ab-bf07-87f9dcd0392c). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.643516] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //f7357147-c2ea-4abe-9c59-136f049bfccb (91ecb7b5-84fb-48d2-af2b-440ab6f25cfa). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.648787] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //35949c80-5496-445d-b2d6-e7d2061e9135 (972256c3-8eb8-49d5-a4ab-cca34abc7b0a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.652106] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //13660ae8-4138-47f2-a858-8880d97b4e8d (a6027333-b269-4810-a188-3af51c04fdcb). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.655577] I [MSGID: 109038] [tier.c:1122:tier_migrate_using_query_file] 0-FFPrimary-tier-dht: Demotion failed for melvin(gfid:a9b49996-ba84-4b88-b182-7a0e677749aa) [2018-09-30 12:25:58.658482] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //d1cb5906-e2d9-444a-9622-599509a73e3b (ac3cd35b-d766-46c1-ae4b-a8373e35a77b). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.661703] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //74ad729b-17dd-44d1-8b86-1db0dce862d8 (ac54d8b4-f826-48b2-ab18-75b561526689). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] [2018-09-30 12:25:58.665051] W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //0368ebe6-9ac3-4d72-9795-0a46800aa90b (c627ff61-1819-4a0b-81ac-d53b8ab872d4). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected] The message "W [MSGID: 114031] [client-rpc-fops.c:1080:client3_3_getxattr_cbk] 0-FFPrimary-client-8: remote operation failed. Path: //e8a6aba1-e5ce-4ded-b474-1c5bf49b1285 (edffea55-296b-4d1b-8114-b4f8dd10920a). Key: trusted.glusterfs.node-uuid [Transport endpoint is not connected]" repeated 3 times between [2018-09-30 12:25:55.406782] and [2018-09-30 12:25:58.674842] [2018-09-30 12:25:58.675351] E [MSGID: 109037] [tier.c:2532:tier_run] 0-FFPrimary-tier-dht: Demotion failed [root@Glus1 FFPrimary]# On Sat, Sep 29, 2018 at 3:54 PM David Brown <dbcce...@gmail.com> wrote: > 4 hours later, no files have been demoted > > [root@Glus1 ~]# gluster volume status FFPrimary detail > Status of volume: FFPrimary > Hot Bricks: > > ------------------------------------------------------------------------------ > Brick : Brick Glus3:/data/glusterfs/FFPrimary/brick3 > TCP Port : 49155 > RDMA Port : 0 > Online : Y > Pid : 24177 > File System : xfs > Device : /dev/nvme0n1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 24.3GB > Total Disk Space : 476.7GB > Inode Count : 50877088 > Free Inodes : 50874696 > > ------------------------------------------------------------------------------ > Brick : Brick Glus2:/data/glusterfs/FFPrimary/brick2 > TCP Port : 49155 > RDMA Port : 0 > Online : Y > Pid : 17994 > File System : xfs > Device : /dev/nvme0n1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 15.5GB > Total Disk Space : 476.7GB > Inode Count : 32560288 > Free Inodes : 32557896 > > ------------------------------------------------------------------------------ > Brick : Brick Glus1:/data/glusterfs/FFPrimary/brick1 > TCP Port : 49154 > RDMA Port : 0 > Online : Y > Pid : 23573 > File System : xfs > Device : /dev/nvme0n1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 13.8GB > Total Disk Space : 476.7GB > Inode Count : 29027000 > Free Inodes : 29024515 > Cold Bricks: > > ------------------------------------------------------------------------------ > Brick : Brick Glus1:/data/glusterfs/FFPrimary/brick5 > TCP Port : 49152 > RDMA Port : 0 > Online : Y > Pid : 23442 > File System : xfs > Device : /dev/sdb1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 2.5TB > Total Disk Space : 2.7TB > Inode Count : 292971904 > Free Inodes : 292969488 > > ------------------------------------------------------------------------------ > Brick : Brick Glus2:/data/glusterfs/FFPrimary/brick6 > TCP Port : 49153 > RDMA Port : 0 > Online : Y > Pid : 17856 > File System : xfs > Device : /dev/sdb1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 2.5TB > Total Disk Space : 2.7TB > Inode Count : 292971904 > Free Inodes : 292969489 > > ------------------------------------------------------------------------------ > Brick : Brick Glus3:/data/glusterfs/FFPrimary/brick7 > TCP Port : 49153 > RDMA Port : 0 > Online : Y > Pid : 24018 > File System : xfs > Device : /dev/sdb1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 2.5TB > Total Disk Space : 2.7TB > Inode Count : 292971904 > Free Inodes : 292969488 > > ------------------------------------------------------------------------------ > Brick : Brick Glus1:/data/glusterfs/FFPrimary/brick8 > TCP Port : 49153 > RDMA Port : 0 > Online : Y > Pid : 23518 > File System : xfs > Device : /dev/sdc1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 2.7TB > Total Disk Space : 2.7TB > Inode Count : 292971904 > Free Inodes : 292969607 > > ------------------------------------------------------------------------------ > Brick : Brick Glus2:/data/glusterfs/FFPrimary/brick9 > TCP Port : 49154 > RDMA Port : 0 > Online : Y > Pid : 17943 > File System : xfs > Device : /dev/sdc1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 2.7TB > Total Disk Space : 2.7TB > Inode Count : 292971904 > Free Inodes : 292969607 > > ------------------------------------------------------------------------------ > Brick : Brick Glus3:/data/glusterfs/FFPrimary/brick10 > TCP Port : 49154 > RDMA Port : 0 > Online : Y > Pid : 24108 > File System : xfs > Device : /dev/sdc1 > Mount Options : rw,seclabel,relatime,attr2,inode64,noquota > Inode Size : 512 > Disk Space Free : 2.7TB > Total Disk Space : 2.7TB > Inode Count : 292971904 > Free Inodes : 292969604 > > [root@Glus1 ~]# gluster volume info > > Volume Name: FFPrimary > Type: Tier > Volume ID: 466ec53c-d1ef-4ebc-8414-d7d070dfe61e > Status: Started > Snapshot Count: 0 > Number of Bricks: 9 > Transport-type: tcp > Hot Tier : > Hot Tier Type : Replicate > Number of Bricks: 1 x 3 = 3 > Brick1: Glus3:/data/glusterfs/FFPrimary/brick3 > Brick2: Glus2:/data/glusterfs/FFPrimary/brick2 > Brick3: Glus1:/data/glusterfs/FFPrimary/brick1 > Cold Tier: > Cold Tier Type : Distributed-Replicate > Number of Bricks: 2 x 3 = 6 > Brick4: Glus1:/data/glusterfs/FFPrimary/brick5 > Brick5: Glus2:/data/glusterfs/FFPrimary/brick6 > Brick6: Glus3:/data/glusterfs/FFPrimary/brick7 > Brick7: Glus1:/data/glusterfs/FFPrimary/brick8 > Brick8: Glus2:/data/glusterfs/FFPrimary/brick9 > Brick9: Glus3:/data/glusterfs/FFPrimary/brick10 > Options Reconfigured: > cluster.tier-promote-frequency: 1800 > cluster.tier-demote-frequency: 120 > cluster.watermark-low: 60 > cluster.watermark-hi: 80 > performance.flush-behind: on > performance.cache-max-file-size: 128MB > performance.cache-size: 25GB > diagnostics.count-fop-hits: off > diagnostics.latency-measurement: off > cluster.tier-mode: cache > features.ctr-enabled: on > transport.address-family: inet > nfs.disable: on > performance.client-io-threads: off > > [root@Glus1 ~]# gluster volume tier FFPrimary status > Node Promoted files Demoted files Status > run time in h:m:s > --------- --------- --------- --------- > --------- > localhost 49 0 in > progress 5159:15:50 > Glus2 0 0 in progress > 5159:15:50 > Glus3 0 2075 in progress > 5159:15:52 > Tiering Migration Functionality: FFPrimary: success > [root@Glus1 ~]# > > > > On Sat, Sep 29, 2018 at 11:56 AM David Brown <dbcce...@gmail.com> wrote: > >> Thank you Hari, >> >> I have set: >> cluster.tier-promote-frequency: 1800 >> cluster.tier-demote-frequency: 120 >> >> I will let you know if it makes a difference after some time. So far (10 >> minutes), nothing has changed. >> I would agree with you, that by looking at the result of 'gluster volume >> tier FFPrimary status' it would seem that demoting is happening. However, >> for the last 24hrs, nothing has changed in the tier status report except >> the time. Could it be stuck? How would I know? Is there a way to restart it >> without restarting the cluster? >> >> >> >> >> >> On Sat, Sep 29, 2018 at 11:08 AM Hari Gowtham <hgowt...@redhat.com> >> wrote: >> >>> Hi, >>> >>> I can see that the demotion is happening from the status provided by you. >>> Do verify it. >>> I would recommend you to change the cluster.tier-demote-frequency to 120 >>> and cluster.tier-promote-frequency to 1800 to increase the demotions >>> until the >>> hot tier is emptied to a certain extent. Later you can use the values >>> existing now. >>> On Sat, Sep 29, 2018 at 5:39 PM David Brown <dbcce...@gmail.com> wrote: >>> > >>> > Hey Everyone, >>> > >>> > I have a 3 node GlusterFS cluster that uses NVMe hot tier and a HDD >>> cold tier. >>> > I recently ran into some problems when the hot tier became full with >>> df-h showing 100%. >>> > >>> > I did not have a watermark-hi set, but it is my understanding that 90% >>> is the default. In an attempt to get the cluster to demote some files, I >>> set cluster.watermark-hi: 80 but it is still not demoting. >>> > >>> > >>> > [root@Glus1 ~]# gluster volume info >>> > >>> > Volume Name: FFPrimary >>> > Type: Tier >>> > Volume ID: 466ec53c-d1ef-4ebc-8414-d7d070dfe61e >>> > Status: Started >>> > Snapshot Count: 0 >>> > Number of Bricks: 9 >>> > Transport-type: tcp >>> > Hot Tier : >>> > Hot Tier Type : Replicate >>> > Number of Bricks: 1 x 3 = 3 >>> > Brick1: Glus3:/data/glusterfs/FFPrimary/brick3 >>> > Brick2: Glus2:/data/glusterfs/FFPrimary/brick2 >>> > Brick3: Glus1:/data/glusterfs/FFPrimary/brick1 >>> > Cold Tier: >>> > Cold Tier Type : Distributed-Replicate >>> > Number of Bricks: 2 x 3 = 6 >>> > Brick4: Glus1:/data/glusterfs/FFPrimary/brick5 >>> > Brick5: Glus2:/data/glusterfs/FFPrimary/brick6 >>> > Brick6: Glus3:/data/glusterfs/FFPrimary/brick7 >>> > Brick7: Glus1:/data/glusterfs/FFPrimary/brick8 >>> > Brick8: Glus2:/data/glusterfs/FFPrimary/brick9 >>> > Brick9: Glus3:/data/glusterfs/FFPrimary/brick10 >>> > Options Reconfigured: >>> > cluster.tier-promote-frequency: 120 >>> > cluster.tier-demote-frequency: 1800 >>> > cluster.watermark-low: 60 >>> > cluster.watermark-hi: 80 >>> > performance.flush-behind: on >>> > performance.cache-max-file-size: 128MB >>> > performance.cache-size: 25GB >>> > diagnostics.count-fop-hits: off >>> > diagnostics.latency-measurement: off >>> > cluster.tier-mode: cache >>> > features.ctr-enabled: on >>> > transport.address-family: inet >>> > nfs.disable: on >>> > performance.client-io-threads: off >>> > [root@Glus1 ~]# gluster volume tier FFPrimary status >>> > Node Promoted files Demoted files Status >>> run time in h:m:s >>> > --------- --------- --------- >>> --------- --------- >>> > localhost 49 0 in >>> progress 5151:30:45 >>> > Glus2 0 0 in progress >>> 5151:30:45 >>> > Glus3 0 2075 in progress >>> 5151:30:47 >>> > Tiering Migration Functionality: FFPrimary: success >>> > [root@Glus1 ~]# >>> > >>> > What can cause GlusterFS to stop demoting files and allow it to >>> completely fill the Hot Tier? >>> > >>> > Thank you! >>> > >>> > >>> > >>> > _______________________________________________ >>> > Gluster-users mailing list >>> > Gluster-users@gluster.org >>> > https://lists.gluster.org/mailman/listinfo/gluster-users >>> >>> >>> >>> -- >>> Regards, >>> Hari Gowtham. >>> >>
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