Vyacheslav Tutrinov created HDDS-9807:
-----------------------------------------
Summary: [EC] Incorrect check of available space on datanodes in
case of allocating blocks
Key: HDDS-9807
URL: https://issues.apache.org/jira/browse/HDDS-9807
Project: Apache Ozone
Issue Type: Bug
Components: EC, SCM
Affects Versions: 1.4.0
Reporter: Vyacheslav Tutrinov
Assignee: Vyacheslav Tutrinov
SCM checks the datanodes availability to allocate blocks incorrectly - it
doesn't consider the committed space (created containers max size sum).
Imagine the case:
1. The cluster has 10 datanodes with 2Gb storage mounted to /data
./hadoop-ozone/dist/target/ozone-1.4.0-SNAPSHOT/compose/ozone/docker-compose.yaml
{code:yaml}
version: "3.8"
# reusable fragments (see
https://docs.docker.com/compose/compose-file/#extension-fields)
x-common-config:
&common-config
image: ${OZONE_RUNNER_IMAGE}:${OZONE_RUNNER_VERSION}
volumes:
- ../..:/opt/hadoop
env_file:
- docker-config
x-replication:
&replication
OZONE-SITE.XML_ozone.server.default.replication:
${OZONE_REPLICATION_FACTOR:-1}
services:
datanode1:
<<: *common-config
ports:
- 19864
- 9882
- 9001:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs1:/data
- ../..:/opt/hadoop
datanode2:
<<: *common-config
ports:
- 19864
- 9882
- 9002:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs2:/data
- ../..:/opt/hadoop
datanode3:
<<: *common-config
ports:
- 19864
- 9882
- 9003:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs3:/data
- ../..:/opt/hadoop
datanode4:
<<: *common-config
ports:
- 19864
- 9882
- 9004:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs4:/data
- ../..:/opt/hadoop
datanode5:
<<: *common-config
ports:
- 19864
- 9882
- 9005:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs5:/data
- ../..:/opt/hadoop
datanode6:
<<: *common-config
ports:
- 19864
- 9882
- 9006:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs6:/data
- ../..:/opt/hadoop
datanode7:
<<: *common-config
ports:
- 19864
- 9882
- 9007:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs7:/data
- ../..:/opt/hadoop
datanode8:
<<: *common-config
ports:
- 19864
- 9882
- 9008:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs8:/data
- ../..:/opt/hadoop
datanode9:
<<: *common-config
ports:
- 19864
- 9882
- 9009:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs9:/data
- ../..:/opt/hadoop
datanode10:
<<: *common-config
ports:
- 19864
- 9882
- 9010:5005
environment:
<<: *replication
OZONE_OPTS:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
command: [ "ozone","datanode" ]
volumes:
- tmpfs10:/data
- ../..:/opt/hadoop
om:
<<: *common-config
environment:
ENSURE_OM_INITIALIZED: /data/metadata/om/current/VERSION
OZONE_OPTS:
<<: *replication
ports:
- 9874:9874
- 9862:9862
command: ["ozone","om"]
scm:
<<: *common-config
ports:
- 9876:9876
- 9860:9860
environment:
ENSURE_SCM_INITIALIZED: /data/metadata/scm/current/VERSION
OZONE-SITE.XML_hdds.scm.safemode.min.datanode:
${OZONE_SAFEMODE_MIN_DATANODES:-1}
OZONE_OPTS:
<<: *replication
command: ["ozone","scm"]
httpfs:
<<: *common-config
environment:
OZONE-SITE.XML_hdds.scm.safemode.min.datanode:
${OZONE_SAFEMODE_MIN_DATANODES:-1}
<<: *replication
ports:
- 14000:14000
command: [ "ozone","httpfs" ]
s3g:
<<: *common-config
environment:
OZONE_OPTS:
<<: *replication
ports:
- 9878:9878
command: ["ozone","s3g"]
recon:
<<: *common-config
ports:
- 9888:9888
environment:
OZONE_OPTS:
<<: *replication
command: ["ozone","recon"]
volumes:
tmpfs1:
driver: local
driver_opts:
o: "size=2g,uid=1000"
device: tmpfs
type: tmpfs
tmpfs2:
driver: local
driver_opts:
o: "size=2g,uid=2000"
device: tmpfs
type: tmpfs
tmpfs3:
driver: local
driver_opts:
o: "size=2g,uid=3000"
device: tmpfs
type: tmpfs
tmpfs4:
driver: local
driver_opts:
o: "size=2g,uid=4000"
device: tmpfs
type: tmpfs
tmpfs5:
driver: local
driver_opts:
o: "size=2g,uid=5000"
device: tmpfs
type: tmpfs
tmpfs6:
driver: local
driver_opts:
o: "size=2g,uid=6000"
device: tmpfs
type: tmpfs
tmpfs7:
driver: local
driver_opts:
o: "size=2g,uid=7000"
device: tmpfs
type: tmpfs
tmpfs8:
driver: local
driver_opts:
o: "size=2g,uid=8000"
device: tmpfs
type: tmpfs
tmpfs9:
driver: local
driver_opts:
o: "size=2g,uid=9000"
device: tmpfs
type: tmpfs
tmpfs10:
driver: local
driver_opts:
o: "size=2g,uid=10000"
device: tmpfs
type: tmpfs
{code}
./hadoop-ozone/dist/target/ozone-1.4.0-SNAPSHOT/compose/ozone/.env
{code}
...
OZONE_REPLICATION_FACTOR=3
...
{code}
./hadoop-ozone/dist/target/ozone-1.4.0-SNAPSHOT/compose/ozone/docker-config
{code}
...
OZONE-SITE.XML_ozone.scm.pipeline.creation.auto.factor.one=false
...
{code}
2. There is an EC-bucket with rs-6-3-1024k replication config
{code:bash}
ozone sh volume create data
ozone sh bucket create data/bucket1 --type EC --replication rs-6-3-1024k
--layout LEGACY
ozone sh bucket link data/bucket1 s3v/bucket1
{code}
3. Create 200KiB file and put it to the bucket
{code:bash}
head -c 200KiB </dev/urandom > /tmp/test_file_200KiB
ozone sh key put s3v/bucket1/test_key_200KiB_001 /tmp/test_file_200KiB
{code}
A new EC-pipeline will be created:
{code}
#scm log
2023-11-30 08:33:26,124 [IPC Server handler 7 on default port 9863] INFO
pipeline.WritableECContainerProvider: Created and opened new pipeline Pipeline[
Id: 70b771a8-0141-4447-8e0f-730b9fba2c34, Nodes:
05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3)dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6)1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7)afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13)8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
ReplicationConfig: EC{rs-6-3-1024k}, State:ALLOCATED, leaderId:,
CreationTimestamp2023-11-30T08:33:26.080416Z[UTC]]
# ozone admin pipeline list
Pipeline[ Id: 077f1a30-0dec-4538-a66f-509583223052, Nodes:
05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5)1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7)8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
ReplicationConfig: RATIS/THREE, State:OPEN,
leaderId:05f06265-66e3-407d-9429-a31754686468,
CreationTimestamp2023-11-30T08:30:47.873Z[UTC]]
Pipeline[ Id: cda08d91-afee-4d31-ad16-02ea3313e502, Nodes:
afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13),
ReplicationConfig: RATIS/THREE, State:OPEN,
leaderId:afd41e81-1ead-4c5a-b087-8f1bb69e2574,
CreationTimestamp2023-11-30T08:30:47.508Z[UTC]]
Pipeline[ Id: 70b771a8-0141-4447-8e0f-730b9fba2c34, Nodes:
05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3)dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6)1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7)afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13)8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
ReplicationConfig: EC{rs-6-3-1024k}, State:OPEN, leaderId:,
CreationTimestamp2023-11-30T08:33:26.080Z[UTC]]
Pipeline[ Id: d46e8c43-ed23-460a-8200-bb4af0599cae, Nodes:
9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3),
ReplicationConfig: RATIS/THREE, State:OPEN,
leaderId:3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa,
CreationTimestamp2023-11-30T08:30:48.503Z[UTC]]
{code}
Datanodes usageinfo
{code}
Usage Information (1 Datanodes)
UUID : 8614d173-4001-46d4-a4e2-1a30339b8585
IP Address : 192.168.176.10
Hostname : ozone-datanode1-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179290112 B (170.98 MB)
Total Used % : 8.35%
Ozone Used : 204800 B (200 KB)
Ozone Used % : 0.01%
Remaining : 1968193536 B (1.83 GB)
Remaining % : 91.65%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : 993705b9-1599-4901-a629-56fbc4c29971
IP Address : 192.168.176.13
Hostname : ozone-datanode2-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179290112 B (170.98 MB)
Total Used % : 8.35%
Ozone Used : 204800 B (200 KB)
Ozone Used % : 0.01%
Remaining : 1968193536 B (1.83 GB)
Remaining % : 91.65%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : 9a144484-a05a-42e4-813e-4aaccf390ea8
IP Address : 192.168.176.12
Hostname : ozone-datanode9-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179085312 B (170.79 MB)
Total Used % : 8.34%
Ozone Used : 0 B (0 B)
Ozone Used % : 0.00%
Remaining : 1968398336 B (1.83 GB)
Remaining % : 91.66%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : afd41e81-1ead-4c5a-b087-8f1bb69e2574
IP Address : 192.168.176.2
Hostname : ozone-datanode6-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179085312 B (170.79 MB)
Total Used % : 8.34%
Ozone Used : 0 B (0 B)
Ozone Used % : 0.00%
Remaining : 1968398336 B (1.83 GB)
Remaining % : 91.66%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : dbb2a07e-5b7d-4aef-a7cc-aed3134563ae
IP Address : 192.168.176.6
Hostname : ozone-datanode10-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 174878720 B (166.78 MB)
Total Used % : 8.14%
Ozone Used : 0 B (0 B)
Ozone Used % : 0.00%
Remaining : 1972604928 B (1.84 GB)
Remaining % : 91.86%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : e68158dc-6f86-4304-b78d-86c4fa93cd7d
IP Address : 192.168.176.15
Hostname : ozone-datanode7-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 31440896 B (29.98 MB)
Total Used % : 1.46%
Ozone Used : 0 B (0 B)
Ozone Used % : 0.00%
Remaining : 2116042752 B (1.97 GB)
Remaining % : 98.54%
Container(s) : 0
Usage Information (1 Datanodes)
UUID : 05f06265-66e3-407d-9429-a31754686468
IP Address : 192.168.176.5
Hostname : ozone-datanode4-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179290112 B (170.98 MB)
Total Used % : 8.35%
Ozone Used : 204800 B (200 KB)
Ozone Used % : 0.01%
Remaining : 1968193536 B (1.83 GB)
Remaining % : 91.65%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : 1f6131be-4cec-465d-a5cd-cf7b87824b7f
IP Address : 192.168.176.7
Hostname : ozone-datanode3-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179085312 B (170.79 MB)
Total Used % : 8.34%
Ozone Used : 0 B (0 B)
Ozone Used % : 0.00%
Remaining : 1968398336 B (1.83 GB)
Remaining % : 91.66%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : 3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa
IP Address : 192.168.176.3
Hostname : ozone-datanode5-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179085312 B (170.79 MB)
Total Used % : 8.34%
Ozone Used : 0 B (0 B)
Ozone Used % : 0.00%
Remaining : 1968398336 B (1.83 GB)
Remaining % : 91.66%
Container(s) : 1
Usage Information (1 Datanodes)
UUID : 65fd7e45-140b-4524-b0e3-800ca5fb0724
IP Address : 192.168.176.8
Hostname : ozone-datanode8-1.ozone_default
Capacity : 2147483648 B (2 GB)
Total Used : 179290112 B (170.98 MB)
Total Used % : 8.35%
Ozone Used : 204800 B (200 KB)
Ozone Used % : 0.01%
Remaining : 1968193536 B (1.83 GB)
Remaining % : 91.65%
Container(s) : 1
{code}
4. Now let's try to create a 100MiB file and put it down to the same bucket
{code:bash}
head -c 100MiB </dev/urandom > /tmp/test_file_100MiB
ozone sh key put s3v/bucket1/test_key_100MiB_001 /tmp/test_file_100MiB
{code}
The request will fail with the next error on the client side:
{code}
INTERNAL_ERROR No enough datanodes to choose. TotalNodes = 10 AvailableNodes =
0 RequiredNodes = 9 ExcludedNodes = 10 UsedNodes = 0
{code}
The SCM creates EC-pipelines up to the max pipeline count:
{code}
ozone-scm-1 | 2023-11-30 08:40:04,485 [IPC Server handler 20 on default
port 9863] INFO algorithms.SCMContainerPlacementRackScatter: Chosen nodes:
[1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7),
993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13),
9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12),
3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3),
8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15),
65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8),
afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2),
dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6)].
isPolicySatisfied: true.
ozone-scm-1 | 2023-11-30 08:40:04,502 [IPC Server handler 20 on default
port 9863] INFO pipeline.WritableECContainerProvider: Created and opened new
pipeline Pipeline[ Id: 42d76b70-84f5-42a1-980a-e3fc3445edb6, Nodes:
1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13)9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3)8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10)e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15)65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8)afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6),
ReplicationConfig: EC{rs-6-3-1024k}, State:ALLOCATED, leaderId:,
CreationTimestamp2023-11-30T08:40:04.487343Z[UTC]]
ozone-scm-1 | 2023-11-30 08:40:04,503 [IPC Server handler 20 on default
port 9863] INFO algorithms.SCMContainerPlacementRackScatter: Chosen nodes:
[afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2),
1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7),
8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3),
dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6),
05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5),
e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15),
993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13),
9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)].
isPolicySatisfied: true.
ozone-scm-1 | 2023-11-30 08:40:04,510 [IPC Server handler 20 on default
port 9863] INFO pipeline.WritableECContainerProvider: Created and opened new
pipeline Pipeline[ Id: 498dfea3-17ee-4600-a3b9-94727c1cd729, Nodes:
afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7)8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3)dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6)05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5)e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13)9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12),
ReplicationConfig: EC{rs-6-3-1024k}, State:ALLOCATED, leaderId:,
CreationTimestamp2023-11-30T08:40:04.503388Z[UTC]]
ozone-scm-1 | 2023-11-30 08:40:04,511 [IPC Server handler 20 on default
port 9863] INFO algorithms.SCMContainerPlacementRackScatter: Chosen nodes:
[8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13),
05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5),
9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12),
65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8),
afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2),
e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15),
dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6),
3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3)].
isPolicySatisfied: true.
ozone-scm-1 | 2023-11-30 08:40:04,518 [IPC Server handler 20 on default
port 9863] INFO pipeline.WritableECContainerProvider: Created and opened new
pipeline Pipeline[ Id: 93539a72-b48d-4a22-8d0d-bac58d217e42, Nodes:
8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13)05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5)9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)65fd7e45-140b-4524-b0e3-800ca5fb0724(ozone-datanode8-1.ozone_default/192.168.176.8)afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15)dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3),
ReplicationConfig: EC{rs-6-3-1024k}, State:ALLOCATED, leaderId:,
CreationTimestamp2023-11-30T08:40:04.511440Z[UTC]]
ozone-scm-1 | 2023-11-30 08:40:04,518 [IPC Server handler 20 on default
port 9863] INFO algorithms.SCMContainerPlacementRackScatter: Chosen nodes:
[1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7),
afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2),
dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6),
9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12),
993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13),
8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10),
05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5),
3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3),
e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15)].
isPolicySatisfied: true.
ozone-scm-1 | 2023-11-30 08:40:04,529 [IPC Server handler 20 on default
port 9863] INFO pipeline.WritableECContainerProvider: Created and opened new
pipeline Pipeline[ Id: 8f8cce33-8631-4e42-b3ac-34f8708be23a, Nodes:
1f6131be-4cec-465d-a5cd-cf7b87824b7f(ozone-datanode3-1.ozone_default/192.168.176.7)afd41e81-1ead-4c5a-b087-8f1bb69e2574(ozone-datanode6-1.ozone_default/192.168.176.2)dbb2a07e-5b7d-4aef-a7cc-aed3134563ae(ozone-datanode10-1.ozone_default/192.168.176.6)9a144484-a05a-42e4-813e-4aaccf390ea8(ozone-datanode9-1.ozone_default/192.168.176.12)993705b9-1599-4901-a629-56fbc4c29971(ozone-datanode2-1.ozone_default/192.168.176.13)8614d173-4001-46d4-a4e2-1a30339b8585(ozone-datanode1-1.ozone_default/192.168.176.10)05f06265-66e3-407d-9429-a31754686468(ozone-datanode4-1.ozone_default/192.168.176.5)3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa(ozone-datanode5-1.ozone_default/192.168.176.3)e68158dc-6f86-4304-b78d-86c4fa93cd7d(ozone-datanode7-1.ozone_default/192.168.176.15),
ReplicationConfig: EC{rs-6-3-1024k}, State:ALLOCATED, leaderId:,
CreationTimestamp2023-11-30T08:40:04.518973Z[UTC]]
{code}
But pipelines's reserved datanodes are unavailable to create new containers:
{code}
ozone-datanode8-1 | 2023-11-30 08:40:06,062
[65fd7e45-140b-4524-b0e3-800ca5fb0724-ChunkReader-6] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968193536, committed: 1073537024}
ozone-datanode1-1 | 2023-11-30 08:40:06,063
[8614d173-4001-46d4-a4e2-1a30339b8585-ChunkReader-5] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968193536, committed: 1073537024}
ozone-datanode9-1 | 2023-11-30 08:40:06,070
[9a144484-a05a-42e4-813e-4aaccf390ea8-ChunkReader-4] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968398336, committed: 1073741824}
ozone-datanode2-1 | 2023-11-30 08:40:06,078
[993705b9-1599-4901-a629-56fbc4c29971-ChunkReader-6] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968193536, committed: 1073537024}
ozone-datanode3-1 | 2023-11-30 08:40:06,093
[1f6131be-4cec-465d-a5cd-cf7b87824b7f-ChunkReader-4] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968398336, committed: 1073741824}
ozone-datanode5-1 | 2023-11-30 08:40:06,102
[3c4549f6-e3b9-44a5-8e8b-5c1078ddaffa-ChunkReader-4] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968398336, committed: 1073741824}
ozone-datanode6-1 | 2023-11-30 08:40:06,136
[afd41e81-1ead-4c5a-b087-8f1bb69e2574-ChunkReader-3] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 894656512 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1968398336, committed: 1073741824}
ozone-datanode10-1 | 2023-11-30 08:40:06,150
[dbb2a07e-5b7d-4aef-a7cc-aed3134563ae-ChunkReader-4] INFO
volume.CapacityVolumeChoosingPolicy: No volumes have enough space for a new
container. Most available space: 898863104 bytes; required space: 1073741824,
volumes: {/data/hdds/hdds=free: 1972604928, committed: 1073741824}
ozone-datanode8-1 | 2023-11-30 08:40:06,239
[65fd7e45-140b-4524-b0e3-800ca5fb0724-ChunkReader-6] WARN
keyvalue.KeyValueHandler: Operation: CreateContainer , Trace ID: , Message:
Container creation failed, due to disk out of space , Result: DISK_OUT_OF_SPACE
, StorageContainerException Occurred.
ozone-datanode8-1 |
org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException:
Container creation failed, due to disk out of space
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer.create(KeyValueContainer.java:162)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler.handleCreateContainer(KeyValueHandler.java:367)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler.dispatchRequest(KeyValueHandler.java:239)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler.handle(KeyValueHandler.java:222)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.createContainer(HddsDispatcher.java:469)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatchRequest(HddsDispatcher.java:275)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.lambda$dispatch$0(HddsDispatcher.java:179)
ozone-datanode8-1 | at
org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:89)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatch(HddsDispatcher.java:178)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.transport.server.GrpcXceiverService$1.onNext(GrpcXceiverService.java:57)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.transport.server.GrpcXceiverService$1.onNext(GrpcXceiverService.java:50)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onMessage(ServerCalls.java:262)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.ForwardingServerCallListener.onMessage(ForwardingServerCallListener.java:33)
ozone-datanode8-1 | at
org.apache.hadoop.hdds.tracing.GrpcServerInterceptor$1.onMessage(GrpcServerInterceptor.java:49)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailableInternal(ServerCallImpl.java:329)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:314)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:833)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
ozone-datanode8-1 | at
org.apache.ratis.thirdparty.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)
ozone-datanode8-1 | at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
ozone-datanode8-1 | at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
ozone-datanode8-1 | at java.base/java.lang.Thread.run(Thread.java:829)
ozone-datanode8-1 | Caused by:
org.apache.hadoop.util.DiskChecker$DiskOutOfSpaceException: No volumes have
enough space for a new container. Most available space: 894656512 bytes
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.volume.VolumeChoosingUtil.throwDiskOutOfSpace(VolumeChoosingUtil.java:38)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.common.volume.CapacityVolumeChoosingPolicy.chooseVolume(CapacityVolumeChoosingPolicy.java:68)
ozone-datanode8-1 | at
org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer.create(KeyValueContainer.java:160)
ozone-datanode8-1 | ... 21 more
{code}
because the SCM and datanodes check the volume availability in a different
manner:
SCM
(org.apache.hadoop.hdds.scm.container.placement.algorithms.SCMContainerPlacementRackScatter#chooseNode(java.lang.String,
java.util.List<org.apache.hadoop.hdds.scm.net.Node>, long, long) ->
org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy#isValidNode ->
org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy#hasEnoughSpace)
{code:java}
if (dataSizeRequired > 0) {
for (StorageReportProto reportProto : datanodeInfo.getStorageReports()) {
if (reportProto.getRemaining() > dataSizeRequired) {
enoughForData = true;
break;
}
}
} else {
enoughForData = true;
}
{code}
Datanode
(org.apache.hadoop.ozone.container.common.volume.AvailableSpaceFilter#test)
{code:java}
public boolean test(HddsVolume vol) {
long volumeCapacity = vol.getCapacity();
long free = vol.getAvailable();
long committed = vol.getCommittedBytes();
long available = free - committed;
long volumeFreeSpace =
VolumeUsage.getMinVolumeFreeSpace(vol.getConf(), volumeCapacity);
boolean hasEnoughSpace =
available > Math.max(requiredSpace, volumeFreeSpace);
mostAvailableSpace = Math.max(available, mostAvailableSpace);
if (!hasEnoughSpace) {
fullVolumes.put(vol, new AvailableSpace(free, committed));
}
return hasEnoughSpace;
}
{code}
The SCM doesn't take into account the committed space and guesses that the
datanode is available to allocate new containers but it's not
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