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https://issues.apache.org/jira/browse/HDFS-13293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17212912#comment-17212912
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Chengwei Wang commented on HDFS-13293:
--------------------------------------
Hi [~ferhui], did you test this patch while a mount table with
multi-destinations?
In my test cases, there were two issues when a mount table contains
multi-destinations.
1. The clientIp duplicated in CallerContext when
RouterRpcClient#invokeSequential. It caused by that current thread would
append the clientIp to current CallerContext when it called
RouterRpcClient#invokeMethod every time.
{code:java}
2020-10-13 14:46:17,083 [IPC Server handler 6 on default port 13189] INFO
FSNamesystem.audit (FSNamesystem.java:logAuditMessage(8680)) - allowed=true
ugi=root (auth:SIMPLE) ip=/127.0.0.1 cmd=getfileinfo
src=/test_dir_with_callercontext dst=null perm=null proto=rpc
callerContext=clientContext,clientIp:10.145.43.214
2020-10-13 14:46:17,084 [IPC Server handler 1 on default port 14269] INFO
FSNamesystem.audit (FSNamesystem.java:logAuditMessage(8680)) - allowed=true
ugi=root (auth:SIMPLE) ip=/127.0.0.1 cmd=getfileinfo
src=/test_dir_with_callercontext dst=null perm=null proto=rpc
callerContext=clientContext,clientIp:10.145.43.214,clientIp:10.145.43.214{code}
2. the clientIp missed in CallerContext when RouterRpcClient#invokeConcurrent.
It caused by that RouterRpcClient#invokeConcurrent used a ThreadPoolExecutor
to execute request concurrent, however the worker threads of ThreadPoolExecutor
can't get clientIp by Server#getRemoteAddress (thread local value only
initialized of current thread).
{code:java}
2020-10-13 14:46:18,305 [IPC Server handler 7 on default port 13189] INFO
FSNamesystem.audit (FSNamesystem.java:logAuditMessage(8680)) - allowed=true
ugi=root (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/ dst=null perm=null
proto=rpc callerContext=clientContext
2020-10-13 14:46:18,305 [IPC Server handler 0 on default port 14269] INFO
FSNamesystem.audit (FSNamesystem.java:logAuditMessage(8680)) - allowed=true
ugi=root (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/ dst=null perm=null
proto=rpc callerContext=clientContext
{code}
Please help to check the issues, and I would try to fix these if necessary.
> RBF: The RouterRPCServer should transfer client IP via CallerContext to
> NamenodeRpcServer
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-13293
> URL: https://issues.apache.org/jira/browse/HDFS-13293
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: maobaolong
> Assignee: Hui Fei
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Attachments: HDFS-13293.001.patch
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> Otherwise, the namenode don't know the client's callerContext
> This jira focuses on audit log which logs real client ip. Leave locality to
> HDFS-13248
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