feat: support partial writes

CHANGELOG.md

@@ -1,5 +1,11 @@
 ## 1.10.0 [unreleased]
 
+### Breaking Changes
+
+1. [#365](https://github.com/InfluxCommunity/influxdb3-java/pull/365): Adds partial writes support and aligns write routing with v3 defaults.
+   See [Partial writes](https://docs.influxdata.com/influxdb3/core/write-data/http-api/v3-write-lp/#partial-writes) for more.
+   For InfluxDB Clustered version, set `useV2Api=true` for writing.
+
 ## 1.9.0 [2026-04-23]
 
 ### Features

README.md

@@ -63,6 +63,8 @@ dependencies {
 
 ## Usage
 
+### Create client
+
 To start with the client, import the `com.influxdb.v3.client` package and create a `InfluxDBClient` by:
 
 ```java
@@ -73,6 +75,7 @@ import java.util.List;
 import java.util.stream.Stream;
 
 import com.influxdb.v3.client.InfluxDBClient;
+import com.influxdb.v3.client.InfluxDBPartialWriteException;
 import com.influxdb.v3.client.query.QueryOptions;
 import com.influxdb.v3.client.Point;
 import com.influxdb.v3.client.write.WriteOptions;
@@ -90,7 +93,9 @@ public class IOxExample {
 }
 ```
 
-to insert data, you can use code like this:
+### Write
+
+To insert data, you can use code like this:
 
 ```java
 //
@@ -113,14 +118,61 @@ client.writePoint(
         orderedTagWrite
 );
 
+//
+// Write with partial acceptance (default behavior)
+//
+WriteOptions partialWrite = new WriteOptions.Builder().build();
+try {
+    client.writeRecords(List.of(
+            "temperature,region=west value=20.0",
+            "temperature,region=west value=\"bad\""
+    ), partialWrite);
+} catch (InfluxDBPartialWriteException e) {
+    // Inspect failed line details.
+    e.lineErrors().forEach(line ->
+            System.out.printf("line=%s msg=%s lp=%s%n", line.lineNumber(), line.errorMessage(), line.originalLine()));
+}
+
+//
+// Write via v2 compatibility endpoint (InfluxDB Clustered)
+//
+WriteOptions useV2 = new WriteOptions.Builder()
+        .useV2Api(true)
+        .build();
+client.writeRecord("temperature,location=north value=60.0", useV2);
+
 //
 // Write by LineProtocol
 //
 String record = "temperature,location=north value=60.0";
 client.writeRecord(record);
 ```
 
-to query your data, you can use code like this:
+#### Accept partial writes and inspect failed lines
+
+Partial writes are enabled by default.
+`acceptPartial` can be configured in three ways: client defaults via `WriteOptions`, connection string / environment variable / system property (`writeAcceptPartial` / `INFLUX_WRITE_ACCEPT_PARTIAL` / `influx.writeAcceptPartial`), or per-write `WriteOptions`.
+
+Set `acceptPartial(false)` to disable partial writes.
+With InfluxDB Core/Enterprise, when a write request fails due to one or more invalid lines, the error message starts with:
+
+- `partial write of line protocol occurred` when partial writes are enabled.
+- `parsing failed for write_lp endpoint` when partial writes are disabled.
+
+When partial writes are disabled, any rejected line causes all lines to be rejected.
+InfluxDB Clustered does not return this structured partial-write error format.
+
+#### Compatibility with InfluxDB Clustered
+
+For InfluxDB Clustered, enable `useV2Api` for writes.
+Like other write options, this can be configured in client code, connection string / environment variable / system property (`writeUseV2Api` / `INFLUX_WRITE_USE_V2_API` / `influx.writeUseV2Api`), or per-write `WriteOptions`.
+
+If `useV2Api` is set, `acceptPartial` is ignored because this compatibility mode does not support partial-write controls.
+Any rejected line causes all lines to be rejected.
+
+### Query
+
+To query your data, you can use code like this:
 
 ```java
 //

src/main/java/com/influxdb/v3/client/InfluxDBClient.java

@@ -557,6 +557,8 @@ static InfluxDBClient getInstance(@Nonnull final ClientConfig config) {
      *   <li>precision - timestamp precision when writing data</li>
      *   <li>gzipThreshold - payload size size for gzipping data</li>
      *   <li>writeNoSync - skip waiting for WAL persistence on write</li>
+     *   <li>writeAcceptPartial - accept partial writes</li>
+     *   <li>writeUseV2Api - use v2 compatibility write endpoint</li>
      * </ul>
      *
      * @param connectionString connection string
@@ -590,6 +592,8 @@ static InfluxDBClient getInstance(@Nonnull final String connectionString) {
      *   <li>INFLUX_PRECISION - timestamp precision when writing data</li>
      *   <li>INFLUX_GZIP_THRESHOLD - payload size size for gzipping data</li>
      *   <li>INFLUX_WRITE_NO_SYNC - skip waiting for WAL persistence on write</li>
+     *   <li>INFLUX_WRITE_ACCEPT_PARTIAL - accept partial writes</li>
+     *   <li>INFLUX_WRITE_USE_V2_API - use v2 compatibility write endpoint</li>
      * </ul>
      * Supported system properties:
      * <ul>
@@ -601,6 +605,8 @@ static InfluxDBClient getInstance(@Nonnull final String connectionString) {
      *   <li>influx.precision - timestamp precision when writing data</li>
      *   <li>influx.gzipThreshold - payload size size for gzipping data</li>
      *   <li>influx.writeNoSync - skip waiting for WAL persistence on write</li>
+     *   <li>influx.writeAcceptPartial - accept partial writes</li>
+     *   <li>influx.writeUseV2Api - use v2 compatibility write endpoint</li>
      * </ul>
      *
      * @return instance of {@link InfluxDBClient}

src/main/java/com/influxdb/v3/client/InfluxDBPartialWriteException.java

@@ -0,0 +1,110 @@
+/*
+ * The MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.influxdb.v3.client;
+
+import java.net.http.HttpHeaders;
+import java.util.List;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+/**
+ * HTTP exception for partial write errors returned by InfluxDB 3 write endpoint.
+ * Contains parsed line-level write errors so callers can decide how to handle failed lines.
+ */
+public class InfluxDBPartialWriteException extends InfluxDBApiHttpException {
+
+    private final List<LineError> lineErrors;
+
+    /**
+     * Construct a new InfluxDBPartialWriteException.
+     *
+     * @param message    detail message
+     * @param headers    response headers
+     * @param statusCode response status code
+     * @param lineErrors line-level errors parsed from response body
+     */
+    public InfluxDBPartialWriteException(
+            @Nullable final String message,
+            @Nullable final HttpHeaders headers,
+            final int statusCode,
+            @Nonnull final List<LineError> lineErrors) {
+        super(message, headers, statusCode);
+        this.lineErrors = List.copyOf(lineErrors);
+    }
+
+    /**
+     * Line-level write errors.
+     *
+     * @return immutable list of line errors
+     */
+    @Nonnull
+    public List<LineError> lineErrors() {
+        return lineErrors;
+    }
+
+    /**
+     * Represents one failed line from a partial write response.
+     */
+    public static final class LineError {
+
+        private final Integer lineNumber;
+        private final String errorMessage;
+        private final String originalLine;
+
+        /**
+         * @param lineNumber  line number in the write payload; may be null if not provided by server
+         * @param errorMessage line-level error message
+         * @param originalLine original line protocol row; may be null if not provided by server
+         */
+        public LineError(@Nullable final Integer lineNumber,
+                         @Nonnull final String errorMessage,
+                         @Nullable final String originalLine) {
+            this.lineNumber = lineNumber;
+            this.errorMessage = errorMessage;
+            this.originalLine = originalLine;
+        }
+
+        /**
+         * @return line number or null if server didn't provide it
+         */
+        @Nullable
+        public Integer lineNumber() {
+            return lineNumber;
+        }
+
+        /**
+         * @return line-level error message
+         */
+        @Nonnull
+        public String errorMessage() {
+            return errorMessage;
+        }
+
+        /**
+         * @return original line protocol row or null if server didn't provide it
+         */
+        @Nullable
+        public String originalLine() {
+            return originalLine;
+        }
+    }
+}

src/main/java/com/influxdb/v3/client/config/ClientConfig.java

@@ -57,6 +57,8 @@
  *     <li><code>defaultTags</code> - defaultTags added when writing points to InfluxDB</li>
  *     <li><code>gzipThreshold</code> - threshold when gzip compression is used for writing points to InfluxDB</li>
  *     <li><code>writeNoSync</code> - skip waiting for WAL persistence on write</li>
+ *     <li><code>writeAcceptPartial</code> - accept partial writes</li>
+ *     <li><code>writeUseV2Api</code> - use v2 compatibility write endpoint</li>
  *     <li><code>timeout</code> - <i>deprecated in 1.4.0</i> timeout when connecting to InfluxDB,
  *     please use more informative properties <code>writeTimeout</code> and <code>queryTimeout</code></li>
  *     <li><code>writeTimeout</code> - timeout when writing data to InfluxDB</li>
@@ -107,6 +109,8 @@ public final class ClientConfig {
     private final WritePrecision writePrecision;
     private final Integer gzipThreshold;
     private final Boolean writeNoSync;
+    private final Boolean writeAcceptPartial;
+    private final Boolean writeUseV2Api;
     private final Map<String, String> defaultTags;
     @Deprecated
     private final Duration timeout;
@@ -208,6 +212,26 @@ public Boolean getWriteNoSync() {
         return writeNoSync;
     }
 
+    /**
+     * Accept partial writes?
+     *
+     * @return accept partial writes
+     */
+    @Nonnull
+    public Boolean getWriteAcceptPartial() {
+        return writeAcceptPartial;
+    }
+
+    /**
+     * Use v2 compatibility write endpoint?
+     *
+     * @return use v2 compatibility write endpoint
+     */
+    @Nonnull
+    public Boolean getWriteUseV2Api() {
+        return writeUseV2Api;
+    }
+
     /**
      * Gets default tags used when writing points.
      * @return default tags
@@ -370,6 +394,8 @@ public boolean equals(final Object o) {
                 && writePrecision == that.writePrecision
                 && Objects.equals(gzipThreshold, that.gzipThreshold)
                 && Objects.equals(writeNoSync, that.writeNoSync)
+                && Objects.equals(writeAcceptPartial, that.writeAcceptPartial)
+                && Objects.equals(writeUseV2Api, that.writeUseV2Api)
                 && Objects.equals(defaultTags, that.defaultTags)
                 && Objects.equals(timeout, that.timeout)
                 && Objects.equals(writeTimeout, that.writeTimeout)
@@ -388,7 +414,7 @@ public boolean equals(final Object o) {
     @Override
     public int hashCode() {
         return Objects.hash(host, Arrays.hashCode(token), authScheme, organization,
-                database, writePrecision, gzipThreshold, writeNoSync,
+                database, writePrecision, gzipThreshold, writeNoSync, writeAcceptPartial, writeUseV2Api,
                 timeout, writeTimeout, queryTimeout, allowHttpRedirects, disableServerCertificateValidation,
                 proxy, proxyUrl, authenticator, headers,
                 defaultTags, sslRootsFilePath, disableGRPCCompression, interceptors);
@@ -403,6 +429,8 @@ public String toString() {
                 .add("writePrecision=" + writePrecision)
                 .add("gzipThreshold=" + gzipThreshold)
                 .add("writeNoSync=" + writeNoSync)
+                .add("writeAcceptPartial=" + writeAcceptPartial)
+                .add("writeUseV2Api=" + writeUseV2Api)
                 .add("timeout=" + timeout)
                 .add("writeTimeout=" + writeTimeout)
                 .add("queryTimeout=" + queryTimeout)
@@ -432,6 +460,8 @@ public static final class Builder {
         private WritePrecision writePrecision;
         private Integer gzipThreshold;
         private Boolean writeNoSync;
+        private Boolean writeAcceptPartial;
+        private Boolean writeUseV2Api;
         private Map<String, String> defaultTags;
         @Deprecated
         private Duration timeout;
@@ -554,6 +584,32 @@ public Builder writeNoSync(@Nullable final Boolean writeNoSync) {
             return this;
         }
 
+        /**
+         * Sets whether to accept partial writes.
+         *
+         * @param writeAcceptPartial accept partial writes
+         * @return this
+         */
+        @Nonnull
+        public Builder writeAcceptPartial(@Nullable final Boolean writeAcceptPartial) {
+
+            this.writeAcceptPartial = writeAcceptPartial;
+            return this;
+        }
+
+        /**
+         * Sets whether to use v2 compatibility write endpoint.
+         *
+         * @param writeUseV2Api use v2 compatibility write endpoint
+         * @return this
+         */
+        @Nonnull
+        public Builder writeUseV2Api(@Nullable final Boolean writeUseV2Api) {
+
+            this.writeUseV2Api = writeUseV2Api;
+            return this;
+        }
+
         /**
          * Sets default tags to be written with points.
          *
@@ -800,6 +856,12 @@ public ClientConfig build(@Nonnull final String connectionString) throws Malform
             if (parameters.containsKey("writeNoSync")) {
                 this.writeNoSync(Boolean.parseBoolean(parameters.get("writeNoSync")));
             }
+            if (parameters.containsKey("writeAcceptPartial")) {
+                this.writeAcceptPartial(Boolean.parseBoolean(parameters.get("writeAcceptPartial")));
+            }
+            if (parameters.containsKey("writeUseV2Api")) {
+                this.writeUseV2Api(Boolean.parseBoolean(parameters.get("writeUseV2Api")));
+            }
             if (parameters.containsKey("disableGRPCCompression")) {
                 this.disableGRPCCompression(Boolean.parseBoolean(parameters.get("disableGRPCCompression")));
             }
@@ -855,6 +917,14 @@ public ClientConfig build(@Nonnull final Map<String, String> env, final Properti
             if (writeNoSync != null) {
                 this.writeNoSync(Boolean.parseBoolean(writeNoSync));
             }
+            final String writeAcceptPartial = get.apply("INFLUX_WRITE_ACCEPT_PARTIAL", "influx.writeAcceptPartial");
+            if (writeAcceptPartial != null) {
+                this.writeAcceptPartial(Boolean.parseBoolean(writeAcceptPartial));
+            }
+            final String writeUseV2Api = get.apply("INFLUX_WRITE_USE_V2_API", "influx.writeUseV2Api");
+            if (writeUseV2Api != null) {
+                this.writeUseV2Api(Boolean.parseBoolean(writeUseV2Api));
+            }
             final String writeTimeout = get.apply("INFLUX_WRITE_TIMEOUT", "influx.writeTimeout");
             if (writeTimeout != null) {
                 long to = Long.parseLong(writeTimeout);
@@ -911,6 +981,12 @@ private ClientConfig(@Nonnull final Builder builder) {
         writePrecision = builder.writePrecision != null ? builder.writePrecision : WriteOptions.DEFAULT_WRITE_PRECISION;
         gzipThreshold = builder.gzipThreshold != null ? builder.gzipThreshold : WriteOptions.DEFAULT_GZIP_THRESHOLD;
         writeNoSync = builder.writeNoSync != null ? builder.writeNoSync : WriteOptions.DEFAULT_NO_SYNC;
+        writeAcceptPartial = builder.writeAcceptPartial != null
+                ? builder.writeAcceptPartial
+                : WriteOptions.DEFAULT_ACCEPT_PARTIAL;
+        writeUseV2Api = builder.writeUseV2Api != null
+                ? builder.writeUseV2Api
+                : WriteOptions.DEFAULT_USE_V2_API;
         defaultTags = builder.defaultTags;
         timeout = builder.timeout != null ? builder.timeout : Duration.ofSeconds(WriteOptions.DEFAULT_WRITE_TIMEOUT);
         writeTimeout = builder.writeTimeout != null