HBASE-24974: Provide a flexibility to print only row key and filter for multiple tables in the WALPrettyPrinter (#2387) (#2388)
Signed-off-by: Bharath Vissapragada <bharathv@apache.org>
This commit is contained in:
Sandeep Pal
GitHub
parent
a2979db27d
commit
a0e25c4dc3
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@ -21,11 +21,14 @@ import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.PrintStream;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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@ -34,7 +37,6 @@ import org.apache.hadoop.hbase.CellUtil;
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import org.apache.hadoop.hbase.HBaseConfiguration;
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import org.apache.hadoop.hbase.HBaseInterfaceAudience;
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import org.apache.hadoop.hbase.PrivateCellUtil;
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import org.apache.hadoop.hbase.TableName;
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import org.apache.hadoop.hbase.Tag;
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import org.apache.hadoop.hbase.regionserver.wal.ProtobufLogReader;
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import org.apache.hadoop.hbase.util.Bytes;
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@ -79,9 +81,12 @@ public class WALPrettyPrinter {
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private boolean outputJSON;
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// The following enable filtering by sequence, region, and row, respectively
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private long sequence;
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private String table;
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// List of tables for filter
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private final Set<String> tableSet;
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private String region;
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private String row;
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private boolean outputOnlyRowKey;
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// enable in order to output a single list of transactions from several files
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private boolean persistentOutput;
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private boolean firstTxn;
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@ -96,15 +101,8 @@ public class WALPrettyPrinter {
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* Basic constructor that simply initializes values to reasonable defaults.
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*/
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public WALPrettyPrinter() {
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outputValues = false;
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outputJSON = false;
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sequence = -1;
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table = null;
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region = null;
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row = null;
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persistentOutput = false;
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firstTxn = true;
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out = System.out;
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this(false, false, -1, new HashSet<>(), null,
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null, false, false, System.out);
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}
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/**
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@ -119,9 +117,9 @@ public class WALPrettyPrinter {
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* @param sequence
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* when nonnegative, serves as a filter; only log entries with this
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* sequence id will be printed
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* @param table
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* when non null, serves as a filter. only entries corresponding to this
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* table will be printed.
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* @param tableSet
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* when non null, serves as a filter. only entries corresponding to tables
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* in the tableSet are printed
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* @param region
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* when not null, serves as a filter; only log entries from this
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* region will be printed
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@ -135,15 +133,16 @@ public class WALPrettyPrinter {
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* Specifies an alternative to stdout for the destination of this
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* PrettyPrinter's output.
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*/
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public WALPrettyPrinter(boolean outputValues, boolean outputJSON,
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long sequence, String table, String region, String row, boolean persistentOutput,
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PrintStream out) {
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public WALPrettyPrinter(boolean outputValues, boolean outputJSON, long sequence,
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Set<String> tableSet, String region, String row, boolean outputOnlyRowKey,
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boolean persistentOutput, PrintStream out) {
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this.outputValues = outputValues;
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this.outputJSON = outputJSON;
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this.sequence = sequence;
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this.table = table;
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this.tableSet = tableSet;
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this.region = region;
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this.row = row;
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this.outputOnlyRowKey = outputOnlyRowKey;
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this.persistentOutput = persistentOutput;
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if (persistentOutput) {
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beginPersistentOutput();
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@ -192,11 +191,11 @@ public class WALPrettyPrinter {
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}
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/**
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* Sets the table filter. Only log entries for this table are printed.
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* @param table table name to set.
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* Sets the tables filter. Only log entries for these tables are printed.
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* @param tablesWithDelimiter table names separated with comma.
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*/
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public void setTableFilter(String table) {
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this.table = table;
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public void setTableFilter(String tablesWithDelimiter) {
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Collections.addAll(tableSet, tablesWithDelimiter.split(","));
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}
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/**
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* sets the region by which output will be filtered
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@ -210,7 +209,7 @@ public class WALPrettyPrinter {
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}
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/**
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* sets the region by which output will be filtered
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* sets the row key by which output will be filtered
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*
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* @param row
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* when not null, serves as a filter; only log entries from this row
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@ -220,6 +219,13 @@ public class WALPrettyPrinter {
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this.row = row;
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}
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/**
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* Option to print the row key only in case you just need the row keys from the WAL
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*/
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public void setOutputOnlyRowKey() {
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this.outputOnlyRowKey = true;
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}
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/**
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* sets the position to start seeking the WAL file
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* @param position
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@ -319,7 +325,8 @@ public class WALPrettyPrinter {
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Map<String, Object> txn = key.toStringMap();
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long writeTime = key.getWriteTime();
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// check output filters
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if (table != null && !((TableName) txn.get("table")).toString().equals(table)) {
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if (!tableSet.isEmpty() &&
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!tableSet.contains(txn.get("table").toString())) {
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continue;
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}
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if (sequence >= 0 && ((Long) txn.get("sequence")) != sequence) {
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@ -332,7 +339,7 @@ public class WALPrettyPrinter {
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List<Map<String, Object>> actions = new ArrayList<>();
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for (Cell cell : edit.getCells()) {
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// add atomic operation to txn
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Map<String, Object> op = new HashMap<>(toStringMap(cell));
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Map<String, Object> op = new HashMap<>(toStringMap(cell, outputOnlyRowKey));
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if (outputValues) {
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op.put("value", Bytes.toStringBinary(CellUtil.cloneValue(cell)));
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}
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@ -387,10 +394,14 @@ public class WALPrettyPrinter {
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out.println("cell total size sum: " + op.get("total_size_sum"));
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}
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public static Map<String, Object> toStringMap(Cell cell) {
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public static Map<String, Object> toStringMap(Cell cell, boolean printRowKeyOnly) {
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Map<String, Object> stringMap = new HashMap<>();
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stringMap.put("row",
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Bytes.toStringBinary(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength()));
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if (printRowKeyOnly) {
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return stringMap;
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}
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stringMap.put("type", cell.getType());
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stringMap.put("family", Bytes.toStringBinary(cell.getFamilyArray(), cell.getFamilyOffset(),
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cell.getFamilyLength()));
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@ -412,6 +423,10 @@ public class WALPrettyPrinter {
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return stringMap;
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}
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public static Map<String, Object> toStringMap(Cell cell) {
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return toStringMap(cell, false);
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}
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public static void main(String[] args) throws IOException {
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run(args);
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}
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@ -431,11 +446,14 @@ public class WALPrettyPrinter {
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options.addOption("h", "help", false, "Output help message");
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options.addOption("j", "json", false, "Output JSON");
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options.addOption("p", "printvals", false, "Print values");
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options.addOption("t", "table", true, "Table name to filter by.");
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options.addOption("t", "tables", true,
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"Table names (comma separated) to filter by; eg: test1,test2,test3 ");
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options.addOption("r", "region", true,
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"Region to filter by. Pass encoded region name; e.g. '9192caead6a5a20acb4454ffbc79fa14'");
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options.addOption("s", "sequence", true,
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"Sequence to filter by. Pass sequence number.");
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options.addOption("k", "outputOnlyRowKey", false,
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"Print only row keys");
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options.addOption("w", "row", true, "Row to filter by. Pass row name.");
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options.addOption("g", "goto", true, "Position to seek to in the file");
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@ -457,6 +475,9 @@ public class WALPrettyPrinter {
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if (cmd.hasOption("j")) {
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printer.enableJSON();
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}
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if (cmd.hasOption("k")) {
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printer.setOutputOnlyRowKey();
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}
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if (cmd.hasOption("t")) {
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printer.setTableFilter(cmd.getOptionValue("t"));
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}
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