Loading...

XML

Word

Printable

Details

Type: Bug
Resolution: Fixed
Priority: Major
Fix Version/s: 7.6.2
Affects Version/s: None
Component/s: ns_server
Labels:
- approved-for-7.6.2

Triage:
Untriaged
Story Points:
0
Is this a Regression?:
Unknown
Sprint:
March-June 24

Description

While doing some testing against 7.6.0-2010 I noticed that it seems the client can receive a configuration map with an empty vBucketMap. After talking w/ Sergey Avseyev, it seems that the client should not receive a configuration of this sort. Filing this MB to get some more eyes on the scenario.

I have attached the following:

cluster logs (I am using cbdinocluster)
- ([^collectinfo-2024-01-16T172309-ns_1@192.168.107.128.zip], [^collectinfo-2024-01-16T172309-ns_1@192.168.107.129.zip] , [^collectinfo-2024-01-16T172309-ns_1@192.168.107.130.zip] )
tcp dump of the scenario ( 20240116_760v2010_empty_vbucketmap.pcapng )
see log snippet below which shows the client's representation of the log

Log snippet:

[2024-01-16 11:20:39.700] [87450,48182582] [debug] 0ms, [710154-7493-dd4b-6d91-e21f3fb860497e/96b7f1-52f3-9d47-9ee5-0e68a307eb8a2f/plain/test-bucket] <192.168.107.130:11210> connecting to 192.168.107.130:11210, timeout=2000ms

[2024-01-16 11:20:39.700] [87450,48182582] [trace] 0ms, [710154-7493-dd4b-6d91-e21f3fb860497e/37c3e0-f0fc-d84d-f24b-7a9c4e25f47c65/plain/test-bucket] <192.168.107.128/192.168.107.128:11210> MCBP recv {magic=0x18, opcode=0xb5, fextlen=3, keylen=0, extlen=0, datatype=1, status=0, bodylen=2832, opaque=8, cas=0}

[2024-01-16 11:20:39.700] [87450,48182582] [trace] 0ms, [710154-7493-dd4b-6d91-e21f3fb860497e/37c3e0-f0fc-d84d-f24b-7a9c4e25f47c65/plain/test-bucket] <192.168.107.128/192.168.107.128:11210> configuration from get_cluster_config response (size=2832, endpoint="192.168.107.128:11210"), {"rev":210,"revEpoch":1,"name":"test-bucket","nodeLocator":"vbucket","bucketType":"membase","storageBackend":"couchstore","uuid":"87aa2294477f5521e33b39e16790196e","uri":"/pools/default/buckets/test-bucket?bucket_uuid=87aa2294477f5521e33b39e16790196e","streamingUri":"/pools/default/bucketsStreaming/test-bucket?bucket_uuid=87aa2294477f5521e33b39e16790196e","numVBuckets":1024,"bucketCapabilitiesVer":"","bucketCapabilities":["collections","durableWrite","tombstonedUserXAttrs","couchapi","subdoc.ReplaceBodyWithXattr","subdoc.DocumentMacroSupport","subdoc.ReviveDocument","dcp.IgnorePurgedTombstones","preserveExpiry","querySystemCollection","mobileSystemCollection","subdoc.ReplicaRead","rangeScan","dcp","cbhello","touch","cccp","xdcrCheckpointing","nodesExt","xattr"],"collectionsManifestUid":"1","ddocs":{"uri":"/pools/default/buckets/test-bucket/ddocs"},"vBucketServerMap":{"hashAlgorithm":"CRC","numReplicas":0,"serverList":["192.168.107.128:11210","192.168.107.129:11210","192.168.107.130:11210"],"vBucketMap":[]},"nodes":[{"couchApiBase":"http://192.168.107.128:8092/test-bucket%2B87aa2294477f5521e33b39e16790196e","hostname":"192.168.107.128:8091","ports":{"direct":11210}},{"couchApiBase":"http://192.168.107.129:8092/test-bucket%2B87aa2294477f5521e33b39e16790196e","hostname":"192.168.107.129:8091","ports":{"direct":11210}},{"couchApiBase":"http://192.168.107.130:8092/test-bucket%2B87aa2294477f5521e33b39e16790196e","hostname":"192.168.107.130:8091","ports":{"direct":11210}}],"nodesExt":[{"services":{"capi":8092,"capiSSL":18092,"fts":8094,"ftsGRPC":9130,"ftsGRPCSSL":19130,"ftsSSL":18094,"indexAdmin":9100,"indexHttp":9102,"indexHttps":19102,"indexScan":9101,"indexStreamCatchup":9104,"indexStreamInit":9103,"indexStreamMaint":9105,"kv":11210,"kvSSL":11207,"mgmt":8091,"mgmtSSL":18091,"n1ql":8093,"n1qlSSL":18093,"projector":9999},"thisNode":true,"hostname":"192.168.107.128"},{"services":{"capi":8092,"capiSSL":18092,"fts":8094,"ftsGRPC":9130,"ftsGRPCSSL":19130,"ftsSSL":18094,"indexAdmin":9100,"indexHttp":9102,"indexHttps":19102,"indexScan":9101,"indexStreamCatchup":9104,"indexStreamInit":9103,"indexStreamMaint":9105,"kv":11210,"kvSSL":11207,"mgmt":8091,"mgmtSSL":18091,"n1ql":8093,"n1qlSSL":18093,"projector":9999},"hostname":"192.168.107.129"},{"services":{"capi":8092,"capiSSL":18092,"fts":8094,"ftsGRPC":9130,"ftsGRPCSSL":19130,"ftsSSL":18094,"indexAdmin":9100,"indexHttp":9102,"indexHttps":19102,"indexScan":9101,"indexStreamCatchup":9104,"indexStreamInit":9103,"indexStreamMaint":9105,"kv":11210,"kvSSL":11207,"mgmt":8091,"mgmtSSL":18091,"n1ql":8093,"n1qlSSL":18093,"projector":9999},"hostname":"192.168.107.130"}],"clusterCapabilitiesVer":[1,0],"clusterCapabilities":{"n1ql":["costBasedOptimizer","indexAdvisor","javaScriptFunctions","inlineFunctions","enhancedPreparedStatements","readFromReplica"]}}

[2024-01-16 11:20:39.700] [87450,48182582] [trace] 0ms, [710154-7493-dd4b-6d91-e21f3fb860497e/37c3e0-f0fc-d84d-f24b-7a9c4e25f47c65/plain/test-bucket] <192.168.107.128/192.168.107.128:11210> received a configuration with identical revision (new=1:210, old=1:210), ignoring