【 TiDB 使用环境】生产环境
【 TiDB 版本】5.4.0
【复现路径】8亿的表，增加索引，卡住不动
【遇到的问题：问题现象及影响】
admin show ddl jobs row count 始终是 102
看 owner 节点，关于 ddl 的日志不断刷：
看 owner 节点关于 ddl 的调用栈如下：
1 @ 0x1329705 0x133a977 0x28142f3 0x284d05c 0x282cdcb 0x341458d 0x340fe85 0x34240be 0x338625c 0x33850e5 0x338454e 0x35aa69f 0x35a92cb 0x363eb0b 0x3633271 0x36315d8 0x362c2af 0x3628d7c 0x3661ab3 0x1361b01
# 0x28142f2 github.com/pingcap/tidb/ddl.(*ddl).doDDLJob+0x732 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl.go:593
# 0x284d05b github.com/pingcap/tidb/ddl.(*ddl).CreateIndex+0xd5b /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_api.go:5507
# 0x282cdca github.com/pingcap/tidb/ddl.(*ddl).AlterTable+0x120a /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_api.go:2739
# 0x341458c github.com/pingcap/tidb/executor.(*DDLExec).executeAlterTable+0x1ec /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/ddl.go:585
# 0x340fe84 github.com/pingcap/tidb/executor.(*DDLExec).Next+0x1604 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/ddl.go:143
# 0x34240bd github.com/pingcap/tidb/executor.Next+0x2dd /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:286
# 0x338625b github.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelayExecutor+0x33b /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:635
# 0x33850e4 github.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelay+0x1e4 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:490
# 0x338454d github.com/pingcap/tidb/executor.(*ExecStmt).Exec+0x72d /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:439
# 0x35aa69e github.com/pingcap/tidb/session.runStmt+0x37e /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/session/session.go:1841
# 0x35a92ca github.com/pingcap/tidb/session.(*session).ExecuteStmt+0xb0a /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/session/session.go:1718
# 0x363eb0a github.com/pingcap/tidb/server.(*TiDBContext).ExecuteStmt+0x6a /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/driver_tidb.go:220
# 0x3633270 github.com/pingcap/tidb/server.(*clientConn).handleStmt+0x1d0 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1972
# 0x36315d7 github.com/pingcap/tidb/server.(*clientConn).handleQuery+0x497 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1841
# 0x362c2ae github.com/pingcap/tidb/server.(*clientConn).dispatch+0xaee /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1336
# 0x3628d7b github.com/pingcap/tidb/server.(*clientConn).Run+0x2bb /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1091
# 0x3661ab2 github.com/pingcap/tidb/server.(*Server).onConn+0xa92 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/server.go:548
1 @ 0x1329705 0x133a977 0x2859a55 0x1361b01
# 0x2859a54 github.com/pingcap/tidb/ddl.(*worker).start+0x314 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_worker.go:179
1 @ 0x1329705 0x133a977 0x285b1b9 0x1361b01
# 0x285b1b8 github.com/pingcap/tidb/ddl.(*ddl).limitDDLJobs+0x2d8 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_worker.go:264
1 @ 0x1329705 0x133a977 0x28986b6 0x28715dc 0x285fe88 0x28b9915 0x21208e3 0x285db4a 0x2859a99 0x1361b01
# 0x28986b5 github.com/pingcap/tidb/ddl.(*worker).runReorgJob+0x155 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/reorg.go:237
# 0x28715db github.com/pingcap/tidb/ddl.(*worker).onCreateIndex+0xb5b /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/index.go:568
# 0x285fe87 github.com/pingcap/tidb/ddl.(*worker).runDDLJob+0x8a7 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_worker.go:787
# 0x28b9914 github.com/pingcap/tidb/ddl.(*worker).handleDDLJobQueue.func1+0x2f4 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_worker.go:552
# 0x21208e2 github.com/pingcap/tidb/kv.RunInNewTxn+0x122 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/kv/txn.go:49
# 0x285db49 github.com/pingcap/tidb/ddl.(*worker).handleDDLJobQueue+0x169 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_worker.go:508
# 0x2859a98 github.com/pingcap/tidb/ddl.(*worker).start+0x358 /home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/ddl/ddl_worker.go:199
gc 看起来也正常
owner 节点也切换过