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kxiao pushed a commit to branch branch-2.0
in repository https://gitbox.apache.org/repos/asf/doris.git

commit 3e6da8acb3bb2483be4ad8f997d3311e88d0f373
Author: HappenLee <[email protected]>
AuthorDate: Fri Aug 4 19:07:14 2023 +0800

    [exec](pipeline) revert FE pipeline instance num pr (#22617)
    
    * Revert "[fix](executor) only mysql connect to set GlobalPipelineTask 
(#22205)"
    * Revert "[feature](executor) using fe version to set instance_num (#22047)"
---
 .../pipeline-execution-engine.md                   |  1 -
 .../pipeline-execution-engine.md                   |  1 -
 .../main/java/org/apache/doris/catalog/Env.java    | 75 +---------------------
 .../java/org/apache/doris/qe/ConnectContext.java   |  6 +-
 .../main/java/org/apache/doris/qe/VariableMgr.java | 19 ------
 5 files changed, 2 insertions(+), 100 deletions(-)

diff --git a/docs/en/docs/query-acceleration/pipeline-execution-engine.md 
b/docs/en/docs/query-acceleration/pipeline-execution-engine.md
index 8d3a2697c1..742fa73eb8 100644
--- a/docs/en/docs/query-acceleration/pipeline-execution-engine.md
+++ b/docs/en/docs/query-acceleration/pipeline-execution-engine.md
@@ -72,7 +72,6 @@ set enable_pipeline_engine = true;
 #### parallel_pipeline_task_num
 
 `parallel_pipeline_task_num` represents the concurrency of pipeline tasks of a 
query. Default value is `0` (e.g. half number of CPU cores). Users can adjust 
this value according to their own workloads.
-If the user upgrades from a lower version, the default value will be the 
parallel_fragment_exec_instance_num before the upgrade.
 
 ```
 set parallel_pipeline_task_num = 0;
diff --git a/docs/zh-CN/docs/query-acceleration/pipeline-execution-engine.md 
b/docs/zh-CN/docs/query-acceleration/pipeline-execution-engine.md
index 3953d9c8d8..bbbe3e100e 100644
--- a/docs/zh-CN/docs/query-acceleration/pipeline-execution-engine.md
+++ b/docs/zh-CN/docs/query-acceleration/pipeline-execution-engine.md
@@ -72,7 +72,6 @@ set enable_pipeline_engine = true;
 #### parallel_pipeline_task_num
 
 `parallel_pipeline_task_num`代表了 SQL 查询进行查询并发的 Pipeline Task 
数目。Doris默认的配置为`0`,即CPU核数的一半。用户也可以实际根据自己的实际情况进行调整。
-如果用户从较低的版本升级过来,则默认值为升级前的`parallel_fragment_exec_instance_num`。
 
 ```
 set parallel_pipeline_task_num = 0;
diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/Env.java 
b/fe/fe-core/src/main/java/org/apache/doris/catalog/Env.java
index 90ee5a9f29..b202bd4154 100755
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/Env.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/Env.java
@@ -99,7 +99,6 @@ import org.apache.doris.common.Config;
 import org.apache.doris.common.ConfigBase;
 import org.apache.doris.common.ConfigException;
 import org.apache.doris.common.DdlException;
-import org.apache.doris.common.EnvUtils;
 import org.apache.doris.common.ErrorCode;
 import org.apache.doris.common.ErrorReport;
 import org.apache.doris.common.FeConstants;
@@ -108,7 +107,6 @@ import org.apache.doris.common.MetaNotFoundException;
 import org.apache.doris.common.Pair;
 import org.apache.doris.common.ThreadPoolManager;
 import org.apache.doris.common.UserException;
-import org.apache.doris.common.Version;
 import org.apache.doris.common.io.CountingDataOutputStream;
 import org.apache.doris.common.io.Text;
 import org.apache.doris.common.util.Daemon;
@@ -291,13 +289,10 @@ public class Env {
     public static final String CLIENT_NODE_HOST_KEY = "CLIENT_NODE_HOST";
     public static final String CLIENT_NODE_PORT_KEY = "CLIENT_NODE_PORT";
 
-    private static final String VERSION_DIR = "/VERSION";
-    private String latestFeVersion;
-    private String previousFeVersion;
     private String metaDir;
     private String bdbDir;
     private String imageDir;
-    private String versionDir;
+
     private MetaContext metaContext;
     private long epoch = 0;
 
@@ -856,7 +851,6 @@ public class Env {
         this.metaDir = Config.meta_dir;
         this.bdbDir = this.metaDir + BDB_DIR;
         this.imageDir = this.metaDir + IMAGE_DIR;
-        this.versionDir = EnvUtils.getDorisHome() + VERSION_DIR;
 
         // 0. get local node and helper node info
         getSelfHostPort();
@@ -876,21 +870,12 @@ public class Env {
                 bdbDir.mkdirs();
             }
         }
-
         File imageDir = new File(this.imageDir);
-
         if (!imageDir.exists()) {
             imageDir.mkdirs();
         }
 
-        File verDir = new File(this.versionDir);
-
-        if (!verDir.exists()) {
-            verDir.mkdirs();
-        }
-
         // init plugin manager
-        initVersionInfo();
         pluginMgr.init();
         auditEventProcessor.start();
 
@@ -5391,64 +5376,6 @@ public class Env {
         }
     }
 
-    public void writeVersionFile(String version, int seq) {
-        String versionName = versionDir + "/" + version + "-commitid-" + seq + 
"-version";
-        File versionFile = new File(versionName);
-        try {
-            versionFile.createNewFile();
-        } catch (Exception e) {
-            LOG.error(e.toString());
-        }
-    }
-
-    public boolean isMajorVersionUpgrade() {
-        if (previousFeVersion == null) {
-            // There are two possible scenarios when there is no 
'previousFeVersion':
-            // If 'image' is empty, it indicates a completely new FE.
-            // If 'image' is not empty, it means an upgrade from a lower 
version.
-            File imageDir = new File(this.imageDir);
-            File[] files = imageDir.listFiles();
-            if (files == null || files.length == 0) {
-                return false;
-            }
-            return true;
-        }
-        return previousFeVersion.charAt(0) != latestFeVersion.charAt(0);
-    }
-
-    private void initVersionInfo() {
-        latestFeVersion = Version.DORIS_BUILD_VERSION_MAJOR + "_" + 
Version.DORIS_BUILD_VERSION_MINOR + "_"
-                + Version.DORIS_BUILD_VERSION_PATCH;
-        File folder = new File(versionDir);
-        File[] files = folder.listFiles();
-        int previousSeq = 0;
-        if (files != null) {
-            // Every part meaning (2_0_0-commitid-1-version)
-            // [version] - [commitid] - [seq]
-            // 'VersionFile' can be transformed like this.
-            // 2_0_0-commitid-1-version -> 2_1_0-commitid-2-version ->
-            // 2_3_0-commitid-3-version -> 2_0_0-commitid-4-version
-            // You can observe the process of FE upgrades through these files.
-            for (File file : files) {
-                String[] splitArr = file.getName().split("-");
-                String version = splitArr[0];
-                int seq = Integer.parseInt(splitArr[2]);
-                if (seq > previousSeq) {
-                    previousSeq = seq;
-                    previousFeVersion = version;
-                }
-            }
-        }
-        if (previousFeVersion == null) {
-            writeVersionFile(latestFeVersion, 1);
-        } else if (!previousFeVersion.equals(latestFeVersion)) {
-            writeVersionFile(latestFeVersion, previousSeq + 1);
-        }
-        if (isMajorVersionUpgrade()) {
-            ConnectContext.isMajorVersionUpgrade = true;
-        }
-    }
-
     public int getFollowerCount() {
         int count = 0;
         for (Frontend fe : frontends.values()) {
diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/ConnectContext.java 
b/fe/fe-core/src/main/java/org/apache/doris/qe/ConnectContext.java
index 04a9953a69..3387b702ed 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/ConnectContext.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/ConnectContext.java
@@ -68,7 +68,7 @@ import java.util.Set;
 public class ConnectContext {
     private static final Logger LOG = 
LogManager.getLogger(ConnectContext.class);
     protected static ThreadLocal<ConnectContext> threadLocalInfo = new 
ThreadLocal<>();
-    public static boolean isMajorVersionUpgrade = false;
+
     private static final String SSL_PROTOCOL = "TLS";
 
     // set this id before analyze
@@ -263,10 +263,6 @@ public class ConnectContext {
             mysqlChannel = new DummyMysqlChannel();
         }
         sessionVariable = VariableMgr.newSessionVariable();
-        if (connection != null && isMajorVersionUpgrade) {
-            
VariableMgr.setGlobalPipelineTask(sessionVariable.parallelExecInstanceNum);
-            sessionVariable = VariableMgr.newSessionVariable();
-        }
         command = MysqlCommand.COM_SLEEP;
         if (Config.use_fuzzy_session_variable) {
             sessionVariable.initFuzzyModeVariables();
diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/VariableMgr.java 
b/fe/fe-core/src/main/java/org/apache/doris/qe/VariableMgr.java
index 2d41eb821f..24b7468e77 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/VariableMgr.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/VariableMgr.java
@@ -367,25 +367,6 @@ public class VariableMgr {
         }
     }
 
-    public static void setGlobalPipelineTask(int instance) {
-        wlock.lock();
-        try {
-            String name = "parallel_pipeline_task_num";
-            String value = instance + "";
-            VarContext ctx = ctxByVarName.get(name);
-            try {
-                setValue(ctx.getObj(), ctx.getField(), value);
-            } catch (DdlException e) {
-                LOG.error(e.toString());
-            }
-            // write edit log
-            GlobalVarPersistInfo info = new 
GlobalVarPersistInfo(defaultSessionVariable, Lists.newArrayList(name));
-            Env.getCurrentEnv().getEditLog().logGlobalVariableV2(info);
-        } finally {
-            wlock.unlock();
-        }
-    }
-
     public static void setLowerCaseTableNames(int mode) throws DdlException {
         VarContext ctx = 
ctxByVarName.get(GlobalVariable.LOWER_CASE_TABLE_NAMES);
         setGlobalVarAndWriteEditLog(ctx, 
GlobalVariable.LOWER_CASE_TABLE_NAMES, "" + mode);


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