Environment Oracle RAC ocss log. Please explain of contents ...

2015-12-18 05:00:19.489: [    CSSD][1029]clssgmRegisterClient: proc(67/113ec39f0), client(1/113c7bd30)
2015-12-18 05:00:19.490: [    CSSD][1029]clssgmRegisterShared: grp DBPGDB, mbr 0, type 1
2015-12-18 05:00:19.490: [    CSSD][1029]clssgmQueueShare: (113ecb910) target global grock DBPGDB member 0 type 1 queued from client (113c7bd30), global grock DBPGDB, refcount 57
2015-12-18 05:00:19.490: [    CSSD][1029]clssgmRegisterShared: global grock DBPGDB member 0 share type 1, refcount 57
2015-12-18 05:00:19.952: [    CSSD][1029]clssscSelect: cookie accept request 110d63ba0
2015-12-18 05:00:19.953: [    CSSD][1029]clssgmAllocProc: (113ed0050) allocated
2015-12-18 05:00:19.953: [    CSSD][1029]clssgmClientConnectMsg: properties of cmProc 113ed0050 - 0,1,2,3,4
2015-12-18 05:00:19.954: [    CSSD][1029]clssgmClientConnectMsg: Connect from con(b88b39f) proc(113ed0050) pid(56623412) version 11:2:1:4, properties: 0,1,2,3,4
2015-12-18 05:00:19.954: [    CSSD][1029]clssgmClientConnectMsg: msg flags 0x0000
2015-12-18 05:00:19.957: [    CSSD][1029]clssgmExecuteClientRequest: VOTEDISKQUERY recvd from proc 68 (113ed0050)